Only properly trained, HVAC professionals should attempt to install and start up any Samsung heating and airconditioning

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1 DVM S Eco Training Rev 3.4 DVM S Eco Training Due to Samsung s policy of ongoing product development, specifications are subject to change without prior notice. Every effort has been made to insure that the information included in this presentation is as accurate as possible at the time of it s publication. This presentation is provided as a guide to help HVAC field technicians understand the proper procedures for installing Samsung DVM S Eco VRF systems. This training module is not intended to replace Samsung service manuals, technical data books, installation/operation manuals or other factory documents. Only properly trained, HVAC professionals should attempt to install and start up any Samsung heating and airconditioning system. High Voltage Caution: Extra care must be taken when working on or around DVM S equipment due to numerous high voltage components. Whether installing or servicing DVM S equipment in the field or while attending Samsung HVAC training classes which include powered simulators and equipment, be aware of the potential dangers of high voltage use caution This presentation may only be used with authorization by Samsung HVAC. Unauthorized use, duplication or alteration of this presentation is prohibited. For technical support issues, always contact your Samsung equipment provider

2 DVM S Training Samsung DVM S Product Line DVM S Eco 3,4,4.4 & 5 ton models Single phase air-cooled VRF Heat Pump & Heat Recovery - residential and light commercial applications Focus for this training DVM Chiller 20 to 240 ton 3 phase air to water heat pump commercial applications Register for this training DVM S Water 6 to 50 ton Single & 3 phase water-cooled VRF residential and commercial applications Heat Pump, Heat Recovery Systems & Geothermal Register for this training DVM S & DVM S MAX-Heat 6 to 44 ton 3 phase air-cooled VRF commercial applications Heat Pump & Heat Recovery Systems Register for this training 3 DVM S Eco Training Training Topics DVMS Eco System Introduction Outdoor Unit Features Outdoor Unit Installation Guidelines Indoor Unit Features & Installation Guidelines Heat Recovery HR Changer & Sub MCU Digital Control Wiring Basic Controls Overview 4 2

3 DVM S Eco System Introduction 6 3

4 Eco System Introduction DVM S Eco is a residential light commercial single phase VRF heat pump system comprised of 1 outdoor unit connected to a maximum of 10 indoor units on a single refrigerant network up to 492 ft. (ODU to farthest IDU) DVM S Eco systems are controlled by optional wired and wireless remote controllers including Samsung Smart Home WiFi and DMS centralized controls through a 2 conductor digital communication buss 208/230vac 1 phase DMS 2.5 Samsung Smart Things WiFi 1 7 Eco System Introduction DVM S indoor units include a full compliment of ducted and non-ducted indoor models ranging from 5,000 up to 60,000 MBtu/h Outdoor units offered in 36,48,53 & 60 MBtu/h models 8 4

5 Eco System Introduction Diversity Description VRF systems are designed to efficiently control Load Diversity in any comfort controlled application As loads shift in the building due to solar heat gain and orientation, building use, etc., operating capacity can be transferred from where the load is reduced to areas with an increased load that require more capacity in the system network. Diversity provides a higher level of temperature control and system efficiency. All VRF applications must be properly designed based on specific load calculations 9 Eco System Introduction Capacity Connection Ratio All Samsung DVM S, VRF systems incorporate the Connection Ratio feature Connection Ratio is the maximum nominal capacity of the outdoor unit in relation to the cumulative total capacity of the connected indoor units Indoor unit capacity can be increased above the maximum capacity of the outdoor unit DVM S connection ratio range: 50% - 130% Example: 60,000 Btu/h total nominal indoor unit capacity connected to a 48,000 Btu/h outdoor unit = Capacity Ratio of 125% 48 MBtu 12,000 Btu/h 9,500 Btu/h 12,000 Btu/h 9,500 Btu/h 7,500 Btu/h 9,500 Btu/h NOTE: Total system operating capacity is limited to the nominal outdoor unit capacity 10 5

6 Eco System Introduction Load Diversity Dining Family Rm Mstr. Bdrm. Kitchen Bdrm. 2 Bdrm. 3 Closet Living Rm Laundry Bathrm Study 4 Ton ODU Garage 48 MBtu/h AHU Cooling operation shown Example: 1,900 sq. ft. 3 bedroom home Standard 4 ton split system The main trunk and each branch duct is sized to deliver the designed airflow for the normal load in each room System operates in full capacity based on thermostat location and cool temperature setpoint The cooling load changes throughout the day due to the orientation of the sun to the house and occupant usage Because of the centralized ductwork and single temperature control, all rooms receive the same air flow and cooling capacity regardless of the individual load requirements 2 11 Eco System Introduction Eco System With Load Diversity Dining Family Rm Mstr. Bdrm. Kitchen Bdrm. 2 Bdrm. 3 Closet Living Rm Laundry Bathrm Study Garage Eco ODU Cooling operation shown Example: 1,900 sq. ft. 3 bedroom home ECO AM048FXMDCH 4 ton system Little or no ductwork Small diameter refrigerant lines with Y-joints Individual zone control Individual indoor units cool the space according to the setpoint temperatures on the remote controllers The cooling load changes throughout the day due to the position of the sun and occupant usage Zones with reduced cooling loads decrease system capacity and energy consumption

7 Eco System Introduction Capacity Connection Load Diversity Ratio Ratio With Load Diversity Dining Kitchen Family Rm Mstr. Bdrm. 9,500 Btu 18,000 Btu Bdrm. 2 Bdrm. 3 Closet Living Rm Laundry Bathrm Study Garage Eco ODU Certain zones within the temperature controlled areas can experience occasional increased loads Example: Parties or holiday celebrations which include more people in the zone than normal Indoor unit(s) can be upsized in capacity to handle the occasional increased loads The total indoor unit capacity can be increased to a maximum of 130% of the outdoor unit nominal capacity output System capacity is transferred from areas with reduced loads to the area(s) which are experiencing temporary high loads NOTE: The outdoor unit will only provide it s design capacity in full load conditions 3 13 Eco System Introduction Eco System Power & Control Circuits The outdoor unit is powered by a dedicated 208/230vac single phase line voltage circuit Indoor units are powered by a separate dedicated 208/230vac circuit The outdoor unit communicates with the indoor units and controllers via a digital 2 conductor control wire CB CB Concept example only LN G LN G LN G LN G

8 Eco System Introduction Variable System Capacity All DVMS Indoor units incorporate an internal EEV (excl. Under Ceiling unit) EEV controls individual fan coil superheat and subcooling based on load demand Indoor ambient temperature is read from indoor unit return air sensor, wired controller, or external room temperature sensor Overall system capacity modulates based on load demand of the conditioned space and controller temperature setpoint Example: 4-Way Cassette Return Air Temperature Sensor 2 15 Eco System Introduction Indoor unit component diagram Control components Control PCB Electronic Expansion Valve (EEV) Wired Remote Controller w/built-in sensor (optional) External Room Sensor (optional) Condensate Lift Pump (specific units) Indoor Fan Coil Basic Operation Coil outlet Sensor (Gas) Example: 4-Way Cassette PCB Blower I N D O O R Return air Sensor Example: MWR-WE11(13)N Optional Discharge Sensor Concealed ducted units only Must be enabled with option code EEV C O I L Room Sensor Coil inlet Sensor (Liquid) MWR-TA External Room Sensor 16 8

9 Eco System Introduction Indoor & Outdoor PCB Removable EEPROM DVMS indoor and outdoor units have a removable EEPROM to store all unit settings and information Maintains system information during service or PCB replacement Outdoor unit main PCB Front Back Outdoor unit data stored in EEPROM HP information Auto start up result Key tact option Error back up data (30min) Serial and model number Indoor unit data stored in EEPROM Model/serial number (Excl. Multi-position AHU) Option settings Saves unit name for future service work and controls setup Other data 17 DVM S Eco Outdoor Unit Features 9

10 Eco Outdoor Unit Features Outdoor Unit Model Numbers Heat Pump Models AM 036 F X M D C H / AA AM 048 F X M D C H / AA AM 053 F X M D C H / AA AM 060 M X M D C H / AA Classification AM = DVM S Capacity 3 digits x 1,000 Btu/h Version F = 2013 M = 2016 N = 2018 Product Type X = Outdoor Unit Heat Recovery Models AM 036 N X M D C R / AA AM 048 N X M D C R / AA AM 053 N X M D C R / AA AM 060 N X M D C R / AA Unit Type M = DVM S Eco Outdoor Unit System Orientation Type D = DVM S Eco Single ODU only Voltage C = 1ø, 208/230vac, 60Hz Mode H = Heat Pump R = Heat Recovery 19 Eco Outdoor Unit Features DVM S Eco Outdoor Units Maximum indoor unit connection AM036FXMDCH/AA Nominal 3 ton can connect up to 6 indoor units AM036NXMDCR AM048FXMDCH/AA Nominal 4 ton can connect up to 8 indoor units AM048NXMDCR AM053FXMDCH/AA Nominal 4 1/2 ton can connect up to 9 indoor units AM053NXMDCR AM060MXMDCH/AA Nominal 5 ton can connect up to 10 indoor units AM060NXMDCR 20 10

11 Eco Outdoor Unit Features Outdoor Units Heat Pump & Heat Recovery Basic Specifications 36,48,&53 MBtu/h models 60 MBtu/h models 47 5/8 56 Dual BLDC Rotary Inverter Compressor Flash Injection Inverter Scroll Compressor 60MBtu Models 21 Eco Outdoor Unit Features Dual BLDC Rotary Compressor 36,48&53MBtu HP Models ODU Refrigerant Circuit 22 11

12 Eco Outdoor Unit Features Dual BLDC Rotary Compressor 36,48&53MBtu HR Models ODU Refrigerant Circuit 23 Eco Outdoor Unit Features Flash Injection Scroll Compressor 60MBtu HP Model ODU Refrigerant Circuit 24 12

13 Eco Outdoor Unit Features Flash Injection Scroll Compressor 60MBtu HR Model ODU Refrigerant Circuit 25 Eco Outdoor Unit Features Flash Injection Scroll Compressor 60MBtu HP & HR Models Heating Performance Increased 26 13

14 Eco Outdoor Unit Features Operating Temperature Range Heat Pump and Heat Recovery Systems Cooling: 23⁰F 118⁰F (0 F w/wind baffles installed) Heating: -4⁰F 66⁰F (36,48&53 MBtu/h models) -13 F 66 F (60 MBtu/h models) Low ambient controls are not necessary for cooling in low ambient conditions (down to 0⁰F) 27 Eco Outdoor Unit Features Outdoor Unit Main Control PCB 36, 48, & 53 MBtu/h Heat Pump models 60 MBtu/h HP model All HR models Outdoor unit option set Indoor unit quantity set DIP switches & Rotary switches Commissioning & Service modes K1 K2 K3 K4 Tactile switches Outdoor unit option set, Indoor unit quantity set Commissioning & Service modes K1 K2 K3 K4 Tactile switches 28 14

15 Eco Outdoor Unit Features Built-in Memory Systems stop operating Analysis with backup data Data High Pressure 30 min Fan motor RPM Current Storing the operation data for last 30 minutes before system shut down Time 29 Eco Outdoor Unit Features Night Quiet Mode Automatic Manual MIM-B14 Timer / Switch 6 Hrs. Later 12 Hrs. Quiet Operation 30 15

16 Eco Outdoor Unit Features Energy Control Operation 60 MBtu HP Models & All HR Models Reduce energy consumption by adjusting the indoor set temperature based on indoor and outdoor ambient temperatures As the room temperature approaches set point temperature, the target evaporator temperature or target refrigerant pressure is changed Function requires option setting at commissioning Temperature Eco for cooling Current indoor temperature Set temperature +5.4 F Set temperature Target evaporation temperature (when the outdoor temperature is low) Target evaporation temperature (when the outdoor temperature is high) Temperature Pressure Eco for heating Set temperature Set temperature -3.6 F Current indoor temperature Target high pressure 31 Eco Outdoor Unit Features Communication Error IDU Emergency Operation E201 IDU communication error entire system shuts down Emergency Operation allows communicating indoor units to continue to operate for up to 12 or 24 hours Emergency Operation function is enabled through the ODU Main PCB option setting Function requires option setting at commissioning Standard Operation: System STOP 60 MBtu HP models & All HR Models: Emergency Operation enabled: Communicating IDU s in temporary operation E201 comm. error IDU stop E201 comm. error IDU stop 32 16

17 Eco Outdoor Unit Features Current Control Demand Limit DVM S Eco outdoor units have current limitation setting options This will allow setting of maximum outdoor unit operating current Settings will limit 2 to 8 amps below the maximum design current More details in the start up section 33 Eco Outdoor Unit Features Oil Return Interval & Option Setting Oil Return Interval The outdoor unit starts the oil return operation after 7 hours of cumulated compressor run time (default). The standard 7 hour interval can be changed to 3 ½ hours with the option setting Default 1/2 Time Interval 7 hours 7 hours 7 hours Oil Recovery Operation 3h 30mins 3h 30mins 3h 30mins 3h 30mins 3h 30mins 34 17

18 Eco Outdoor Unit Features Defrost Temperature Option Setting Temperature to trigger defrost operation setting Increase the temperature setting to initiate defrost operation in high humidity areas + F + F Option Default Option Default 32 F + F Outdoor temp 32 F + F Outdoor temp Cond out temp Suction temp 35 Eco Outdoor Unit Features Snow Accumulation Prevention When enabled, snow is prevented from accumulating on the outdoor unit fan discharge grills Function: the outdoor unit fans will run for 60 seconds once every 30 minutes if the outdoor ambient temperature drops below 41 F NOTE: Outdoor unit fans may run when the system is not in operation 36 18

19 Eco Outdoor Unit Features Optional Outdoor Unit Base Pan Heater Kit Heat Recovery Models Optional base pan heater kit is available to prevent condensate from freezing in the unit base pan Heater operation is controlled from the outdoor unit main control PCB Pan heater cycles on during system heat operation with ambient outside temperature 30 F During Snow Accumulation Prevention operation 37 Eco Outdoor Unit Features System Capacity Correction Capacity correction for cooling operation (Target IDU evaporator temperature) Option settings to alter indoor units operating evap temperature to accommodate certain performance conditions Factory default target evap temp: 41 F ~ 45 F Target evap temp can be changed with option settings in ranges from 45 F up to 59 F Capacity correction for heating operation (Target high pressure gas measured at ODU) Option settings to increase or decrease heating capacity of indoor units Factory default target high pressure gas: 435psi Target high pressure can be decreased or increased from 362psi up to 479psi 38 19

20 Eco System Introduction System Refrigerant Pump-down & Pump-out Pump Down Pump Out Indoor Unit Service Outdoor Unit Service 39 DVM S Eco ODU Installation Guidelines 20

21 Eco Outdoor Installation Guidelines Outdoor Unit Space Requirements It is important to follow Samsung s outdoor unit placement guidelines Specific placement guidelines are referenced in the DVMS Eco Installation Manual Failure to follow these recommendations can severely impact system capacity, performance & reliability Improper placement can also shorten equipment service life Installations must always follow national, state and local HVAC and electrical codes to insure compliance 41 Eco Outdoor Installation Guidelines Outdoor Unit Placement Cautions when placing the Eco outdoor unit into position Protect the unit from snow obstructing air flow Position the unit to avoid damage or reduced performance due to prevailing winds Avoid locations near bathroom and exhaust hood ventilators, corrosive atmospheres, etc. Insure proper unit clearances to enable adequate servicing and maintenance Units must be installed level to insure proper condensate drainage (Defrost) 42 21

22 Eco Outdoor Installation Guidelines Outdoor Unit Placement Coastal Installations Outdoor units should never be installed in locations where direct sea/ocean breezes prevail In coastal locations, outdoor units should be installed behind the building, wall or other obstruction to protect against direct winds Refer to the outdoor unit Installation Manual for exact specifications Outdoor units unprotected from sea breezes Outdoor unit behind building protected from sea breezes 43 Eco Outdoor Installation Guidelines Outdoor Unit Installation Wind Baffles Optional WBF-1 & WBB-2 wind baffles Wind baffles are provided as shields for installations where there are open prevailing winds example: rooftop Wind baffles also allow the outdoor unit to operate in cooling down to 0 F (Min. of 50% capacity of indoor units must be in operation) WBF-1 WBF-1 WBB

23 Eco Outdoor Installation Guidelines General Outdoor Unit Space Requirements Single system outdoor unit installation clearances Rear: 12 Left side: 6 Right side: 24 Service access Front: 60 NOTE: Refer to the DVMS Eco Installation Manual for all outdoor unit placement scenarios 45 Eco Outdoor Installation Guidelines Outdoor Unit Space Requirements Multiple system outdoor unit installation clearances Rear: 12 Left side: 6 Right side: 24 Service access Right side between adjacent units: 24 Front: 60 Eco outdoor units cannot be connected together to increase system capacity. NOTE: Refer to the Eco Installation Manual for all outdoor unit placement scenarios 46 23

24 Eco Outdoor Installation Guidelines Outdoor Unit Placement Support the outdoor unit above grade a minimum of 2 Unit should be installed above the normal snow line 2 Properly anchor the unit mounting feet to stabilize the unit in high wind conditions Nut & Lock Washer 1 in > 3 A+ ½ to 1 47 Eco Outdoor Installation Guidelines Outdoor Unit Refrigerant Pipe Installation The outdoor unit cabinet allows for the main refrigerant lines to connect through the lower right hand side for front, side, rear or bottom After connecting the refrigerant pipes, block off the cabinet openings to prevent debris, etc. from entering Ensure that the ventilation louver at the base of the cabinet is not blocked 48 24

25 Eco Outdoor Installation Guidelines Outdoor Unit Base Pan Drain Install the included 90 drain hose fitting to the base pan to divert condensation from defrost and normal operation Use the provided drain plugs for the open pan holes Drain Plug Drain Fitting 0 Drain Plug Drain fitting 49 DVM S Eco Indoor Unit Features & Installation Guidelines 25

26 Indoor Unit Model Nomenclature Classification AM = DVM S Capacity 3 digits x 1,000 Btu/h Version E = 2012 F = 2013 G = 2014 J = 2015 K = 2016 M = 2017 N = 2018 Product Type N = Indoor Unit AM 0** F N * D C H / AA Unit Type 1 = 1-Way Cassette 4 = 4-Way/360 Cassette N = Mini 4-Way Cassette L = Slim Duct H = HSP Ducted Q = Wallmount C = Ceiling/Under Ceiling Z = Multi-position AHU G = Floor Standing F = Concealed Floor Standing System Orientation Type Voltage C = 1ø, 208/230vac, 60Hz Mode H = Heat Pump 51 DVMS Indoor Units Wallmount 1-Way Ceiling Cassette Big Ceiling Ceiling/Floor Mount Mini 4-Way Cassette DVM S Eco Indoor Unit Line-up 4-Way Cassette Floor Standing 360 Round Flow Slim Duct Duct S HSP Ducted Multi-position AHU 52 26

27 DVM S Indoor Units New DVM S Indoor Units 4-Way Cassette Mini 4-Way Cassette Wind-Free TM 1-Way Cassette 53 DVM S Indoor Units Wind-Free TM Technology Wind Free Ceiling Cassettes deliver an air current that is under 0.15 m/s while in Wind Free mode. Air velocity that is below 0.15 m/s is considered still air as defined by ASHRAE (American Society of Heating, Refrigerating, and Air-Conditioning Engineers) The Wind-Free Ceiling Cassettes use thousands of micro holes to distribute air throughout the space without blowing directly on the occupants, eliminating potential drafts. Activate Wind-Free cooling by pressing the Wind-Free button on the controller. Smart Cooling mode cools air quickly and efficiently, with Fast Cooling at first, and automatically switches to Wind-Free mode when room temperature nears set temperature. * Requires MWR-WE13N wired controller 54 27

28 Indoor Unit Installation Guidelines General indoor unit installation recommendations Always refer to the specific indoor unit Installation Manual for the proper clearances, placement and installation procedures Follow all national, state and local codes to insure installation compliance Every installation should be laid out onsite to insure proper placement of the indoor units and refrigerant lines Any indoor unit which is installed in an area where the temperature is above 80 F and the humidity rises above 80%, the body of the indoor unit should be insulated with a minimum of 3/8 insulation All indoor unit refrigerant flare connections must be completely insulated Indoor units must be installed level to insure proper condensate removal and float switch operation Proper service access must be provided for each indoor unit as indicated in the Installation Manuals 55 Indoor Unit Installation Guidelines Indoor Unit Placement Documentation While placing the indoor units in their respective locations, it is important to document each unit s model and serial number including location and ID (room no. area, zone, etc.) This information should be included in the project As-built drawings (floor plan) and spreadsheet for future reference 56 28

29 Indoor Unit Installation Guidelines Indoor Unit Placement Documentation Accurate indoor unit documentation will be important for quick and easy address setting in the system commissioning process With SNET Pro 2 Service Software, the indoor units can be viewed based on their serial number (Excluding the Multi-position AHU s) SNET Pro 2 Service Software 57 Indoor Unit Features 360 Cassette AMO**KN4DCH/AA Features Models: 09,12,18,24,30,36 & 48 MBtu/h Built-in IR receiver for easy addition of wireless controller Bladeless air direction control Fan speed can be adjusted for ceiling height Built-in condensate lift pump 29 lift with check valve Facia Panels sold separately (White & Black) Electro-static washable pleated air filter included 39 3/8 x 39 3/8 Weight: 52 61lbs (incl. facia panel) Perfect Even Cooling Circular Air Wave Ideally Controls Room Air Temperature Cold-draft Free Comfortable Airflow, Free From Cold-draft Fast Cooling Conventional 360 CST 360º even discharge" Cold-draft Cold-draft Free Up to 25% Blade Loss Conventional CST Bladeless Flow Control Panel SAMSUNG 360 CST 0% Loss 58 29

30 Indoor Unit Features 360 Cassette Facia Panels Ceiling Type Open Type Panel type Panel color Model number Ceiling Type (Square) White PC4NUDMAN Black PC4NBDMAN Open Type (Circle) White PC4NUNMAN Black PC4NBNMAN 59 Indoor Unit Features 360 Cassette Facia Panels Fresh air intake knock-out Status Display Facia Panel Air-Blade (Bladeless) Grill Inlet Ceiling Type Panel 60 30

31 Indoor Unit Features 360 Cassette Flow Control Mechanism Due to the 360 design of the coil and chassis, booster fans are used to provide even air flow The cassette unit has 3 booster fans that operate from 500 to 2,000 rpm These booster fans also provide air direction control similar to a standard 4-way cassette s powered louvers Individual air direction control is also possible (3 directions) 61 Indoor Unit Features 360 Cassette Flow Control Mechanism Air outlet angle settings: 10, 40, & 60 (default without booster fans) The booster fans create an area of low pressure near the air outlet drawing the cassette discharge air upward Booster fan outlet Booster fan intake Suction Flow Default Horizontal Flow Downward Upward Suction Low pressure 62 31

32 Indoor Unit Features 360 Cassette Remote Controller Options MR-KH00U Optional Wireless Remote Controller Air flow direction control Simple schedule control (On timer / Off timer) On/Off operation mode, fan speed, airflow, temperature setting Zone selecting control (Max. 4 zones) Buzzer sound mute Address and option setting MWR-WE11(13)N Optional Wired Controller Time synchronization with DMS2.5 gateways Airflow direction control Indoor unit On/Off and fan speed control Daylight savings Weekly schedule Wind Free Activate/Deactivate (MWR-WE13N) Built-in room sensor NOTE: Indoor unit may require firmware update 63 Indoor Unit Installation Guidelines 360 Cassette Caution: When handling the cassette unit hold it by the mounting brackets to avoid potential damage Layout the cassette position and mounting hangars using the included template Space the cassette 5ft. from any wall or smoke detector Space multiple cassettes 10ft. apart Maintain ½ to ¾ gap around the unit from the ceiling Level the unit and secure the hangar nuts For solid lid ceilings provide access panel(s) for future servicing (18 x18 ) A: 5ft or more 10 5ft 8ft

33 Indoor Unit Installation Guidelines 360 Ceiling Type Fascia Panel Installation Remove the 4 corner panels by pressing the 2 tabs on each panel Lift the fascia panel up and press each corner up until it clicks into place Press the center of each side into place one at a time until it clicks into place Insert the 4 screws into the panel front and adjust until there is no gap between the panel and ceiling Snap into place each corner panel to the fascia panel to complete the installation Indoor Unit Installation Guidelines 360 Open Type Fascia Panel Installation Raise the panel up onto the unit body and rotate clockwise to secure into place Adjust the unit so there is no gap between the panel and the ceiling

34 Indoor Unit Features 4-Way Cassette AMO**FN4DCH/AA Features Models: 09,12,18,24,30,36 & 48 MBtu/h Built-in IR receiver for easy addition of wireless controller 4 X auto-swing louvers with independent control from 32 to 65 3 Fan speed settings Built-in condensate lift pump 29 lift with check valve Facia Panel sold separately (PC4NUSKFN) Electrostatic washable pleated air filter included 37 3/8 x 37 3/8 Weight: 46 54lbs. (Incl. facia panel) 67 Indoor Unit Features 4-Way Cassette Fresh air can be introduced through the fresh air knock out to supply up to 4% of the rated CFM of fresh air (4 ) This is a 0 static unit so a booster fan must be used to force fresh air into the cassette unit Fresh air must be pre-filtered before entering the cassette Optional MIM-B14 External Contact Controller can be used as an interlock for the fresh air booster fan 68 34

35 Indoor Unit Features 4-Way Mini Cassette AMO**F(K)NNDCH/AA Features Models: 05,07,09,12,18,20 MBtu/h Built-in condensate lift pump 29 lift with check valve Individual powered swing louvers with independent control from 32 to 65 Fresh air can be introduced through the fresh air knock-out to supply fresh air This is a 0.0 static unit so a booster fan must be used to force fresh air into the cassette unit Optional MIM-B14 External Contact Controller can be used as an interlock for the fresh air booster fan Fresh air must be pre-filtered before entering the cassette Facia Panel sold separately (PC4SUSMEN) Optional motion sensor available (MCR-SMA) with configurable operation Electro-static washable pleated air filter included 26 ½ x 26 ½ Weight: 32lbs 69 Indoor Unit Features 4-Way Mini Cassette Without any unnecessary alterations to the ceiling grid, the Mini 4-Way Cassette body can be installed within one ceiling tile (24X24) in a T-bar suspended ceiling 23 5/8 23 5/8 22 5/8 70 7/8 70 7/

36 Indoor Unit Features Wind-Free TM 4-Way Cassette & Mini 4-Way Cassette Wind Free cooling Extremely quiet operation Larger discharge blades for wider cooling area as compared to the standard 4-Way Cassette models Smart Comfort Operation Maintains optimal occupied space control by sensing temperature and humidity Optional Motion Detection Sensor control for both models Facia panels can be installed in any orientation Condensate lift pump with check valve standard 71 Indoor Unit Installation Guidelines 4-Way Cassette & Mini 4-Way Cassette Caution: When handling the cassette unit hold it by the mounting brackets to avoid potential damage Layout the cassette position and mounting hanger bolts using the included template Space the cassette 5ft. from any wall or smoke detector Use the provided spacing gauge to insure the correct unit to ceiling spacing Use the provided rubber vibration absorbers to reduce vibration and install double nuts on the threaded rod below the mounting bracket 5ft 3/4 5ft 8ft 11/

37 Indoor Unit Installation Guidelines 4-Way Cassette & Mini 4-Way Cassette Fascia Panel Installation Fascia panel installation is similar for the 4-Way & Mini 4-Way cassettes Remove the electrical box cover Open the fascia return grille Align the fascia panel in the correct position and lift up to the unit and use the 2 hooks to clip the panel to the body Wind-Free facia panel can be installed in any position Remove the 4 corner trim pieces and install the 4 mounting bolts loosely Adjust each bolt to secure the fascia panel to the ceiling without any gaps 1 4-Way & Mini 4-Way 4-Way 3 4-Way Mini 4-Way 2 4 Mini 4-Way 4-Way & Mini 4-Way 4 73 Indoor Unit Installation Guidelines 4-Way Cassette & Mini 4-Way Cassette Fascia Panel Installation Connect the 3 wire harnesses from the fascia panel into the unit electrical box Tip: Verify the number of pins on the 2 white terminals to insure the correct connection Close the electrical box cover and tighten the screws Close the fascia return grille

38 Indoor Unit Features 1-Way Cassette AMO**FN1DCH/AA Features Models: 07, 09, & 12 MBtu/h 3 speed fan operation with crossflow blower Built-in IR receiver for easy addition of wireless controller Single powered louver Built-in condensate lift pump 29 lift with check valve Optional facia panels: Classic & Slider Facia panel has status LEDs Electro-static washable pleated air filters Drain pan is included within the panel Classic Slider 75 Indoor Unit Features 1-Way Cassette Optional Facia Panels Classic: PC1NUSMAN Slider: PC1NUPMAN (S = standard) (P = premium) Slider model has motorized return air opening 76 38

39 Indoor Unit Features Wind-Free TM 1-Way Cassette Wind Free cooling Extremely quiet operation with discharge micro holes design Single powered discharge louver Minimal above ceiling space required Condensate lift pump with check valve standard 38 3/16 5 1/8 7 1/16 Ceiling 77 Indoor Unit Installation Guidelines 1- Way Ceiling Cassette Layout the cassette position and mounting hanger bolts using the included template Space the cassette 5ft. from any side wall or smoke detector Use the included spacing gauge to provide the correct unit to ceiling spacing Use the provided rubber vibration absorbers to reduce vibration and install double nuts on the threaded rod below the mounting bracket 5 ft 5 ft 5 ft 5 ft 5/8 5/8 Spacing Gauge 78 39

40 Indoor Unit Installation Guidelines 1-Way Ceiling Cassette Fascia Panel Installation After adjusting the unit height in relation to the ceiling with the included gauge: Orient the panel in the proper direction before lifting it into place Lift the panel up to the unit guiding the panel hooks into the openings on the unit chassis Guide the louver and display wires into the PCB box, making sure not to pinch or damage them Push upwards until the hooks catch in the provided openings 79 Indoor Unit Installation Guidelines 1-Way Ceiling Cassette Fascia Panel Installation With the provided hardware, screw the panel to the unit Take care not to overtighten to prevent damaging the panel Insure that the panel is snug to the ceiling to prevent air leakage and potential condensation issues Install the 3 white screw covers by the supply air outlet louver 80 40

41 Indoor Unit Installation Guidelines Ceiling Cassette Condensate Drain Piping Current ceiling cassette models have condensate lift pumps rated for a maximum 29 of lift from the bottom of the unit Inside diameter of the condensate drain outlet & riser piping must not exceed ¾ ID The flexible hose should be installed level or bent downward All condensate lines must be insulated throughout the building The horizontal main condensate lines must be properly supported with hangars every 40 to 60. Condensate piping installation must be in accordance with state and local codes 81 Indoor Unit Features Big Ceiling AMO**JNCDCH/AA Features Models: 36 & 48 MBtu/h Long air throw up to 1,286 cfm Motorized adjustable louver from 4 to 45 Gravity condensate drain IR receiver and LED status indicator lights Piping and electrical connections on RH side rear of unit Provision for fresh air Electro-static washable pleated air filter included 53 1/8 x 26 9/16 Weight: 74lbs. & 94lbs. Wide range of angle 82 41

42 Indoor Unit Features Under Ceiling AMO**FNCDCH/AA Features Models: 18 & 24 MBtu/h Flexible installation under ceiling or low side wall Powered air discharge louver IR receiver built-in Power button and status LED lights on front of unit Electro-static washable pleated air filter Requires the optional EEV kit Gravity condensate drain 83 Under Ceiling Unit - EEV Kits Under Ceiling EEV Kits in 1, 2 & 3 zone models available EEV Kits are powered (208/230vac) and controlled from indoor unit PCB MEV-E32SA MXD-E32K200A MXD-E32K300A Single zone 2 zones 3 zones 84 42

43 Indoor Unit Installation Guidelines Under Ceiling Unit EEV Kit Installation MEV-A**SA EEV Kit: allows connection of one Under Ceiling unit Install the EEV unit vertically in an accessible location for future servicing Connect the included strainer to the IN port Liquid line from the main refrigerant line connects to IN port with the strainer The liquid line from the Under Ceiling unit is connected to the OUT port Included connection wire connects EEV to Indoor unit PCB (CN808) Maximum length of refrigerant tubing from EEV to indoor unit is 6 1/2 ft. The EEV is controlled and powered from the indoor unit MXD-E **K: 2 & 3 port EEV kits are available Included flared inlet strainer To main liquid line from the Outdoor Unit To liquid line connection on the Indoor Unit 85 Indoor Unit Installation Guidelines Multiple Cassette Condensate Drain Piping The individual drain lines must tap into the main drain line from the top only Failure to install the drain piping correctly may cause check valve and pump failure, including water leaks Condensate drain piping within the building must be properly insulated 86 43

44 Indoor Unit Installation Guidelines Ceiling Type & Big Ceiling Type Installation 12 min. 12 min. Ceiling Type & Big Ceiling Type units are installed horizontally under the ceiling Maintain at least 12 clearance on the sides and 2 on rear 12 min. 2 min. 87 Indoor Unit Installation Guidelines Ceiling Unit Clearances Wall Installation When hanging the unit on the wall, use the supplied hanging brackets Unit must be installed level for proper condensate removal Wall hanger hook (X2) 12 min. 12 min. Note: Install unit high enough from floor to prevent damage from brooms, feet, vacuums, etc

45 Indoor Unit Features Neo Forte Wallmount AMO**HNQDCH/AA Features Models: 07, 09, 12, 18 & 24 MBtu/h Integrated IR receiver Single powered louver Gravity condensate drain Optional condensate pump kit Electro-static washable air filter included with supplemental replaceable anti-allergy and deodorizing filters 89 Indoor Unit Features Whisper Wallmount AMO**MNVDCH/AA Features Models: 05,07,09,12,15,18,24 & 28 MBtu/h Triangular design with wider air inlet opening for better air flow Efficient 27 watt blower motor 90 45

46 Indoor Unit Features Max Wallmount AMO32MNQDCH/AA Features Model: 32 MBtu/h Integrated IR receiver Single powered louver Gravity condensate drain Optional condensate pump kit Electro-static washable pleated air filter 91 Indoor Unit Installation Guidelines General Wallmount Installation - Placement Recommended minimum clearances from air outlet to nearest obstruction: 7,500 Btu/h 10 ft. 9,000-12,000 Btu/h 15 ft. 18,000 32,000 Btu/h 25 ft. Stated clearances are required to eliminated potential for discharge air recirculation (bounce-back) which can cause short cycling, loss of temperature control and reduced equipment service life Too Close 92 46

47 Indoor Unit Installation Guidelines General Wallmount Installation - Placement While operating, the powered louver will direct air up and down In these examples the wallmount unit will create a bounce-back effect as the air is directed at the top of the shelving unit or the floor, causing sporadic operation and poor temperature control Wallmount unit must be installed at least 5ft above the floor 93 Indoor Unit Installation Guidelines General Wallmount Installation - Placement Install the included wall bracket to the wall must be level Insure that the unit is secured to framing or appropriate anchors are used to support the weight of the unit Refrigerant line exit points: R/L Surface R/L Rear R Surface Bottom When exiting through an outside wall, the piping must run at a slight slant downward 4 minimum Refrigerant line exit points (Rear view of unit) 94 47

48 Indoor Unit Installation Guidelines General Wallmount Installation Condensate tubing must be properly installed to insure complete condensate removal 95 Indoor Unit Installation Guidelines Basic Whisper Wallmount Installation Installing the Hangar Plate Determine the exit point for the refrigerant tubing, condensate drain pipe and wiring When exiting through a wall from the rear of the unit drill a hole 2.5 to 3 The hole should have a downward slant through the wall Remove the Hangar plate from the unit Remove the 2 screws securing thee plate to the unit Press up on the bottom hooks to release the plate Install the plate to the wall securing the plate to the wall studs Rear View 96 48

49 Indoor Unit Installation Guidelines Basic Whisper Wallmount Installation Removing the front cover The bottom cover panel must be removed by releasing the side hooks then the center and bottom hooks Refer to the Whisper Installation Manual for complete unit installation procedures 97 Indoor Unit Installation Guidelines General Wallmount Condensate Installation To change the direction of the drain hose Remove the clamp screw then twist to the left and pull the hose off the pan fitting Remove the drain plug from the opposite side and insert it using a screwdriver and turning it to the right until it seats Slip the drain hose on the drain outlet and re-secure with the clamp screw Refrigerant pipes Condensate hose 98 49

50 Indoor Unit Installation Guidelines Wallmount Condensate Pump Installation Wallmount units require an optional condensate pump when the standard gravity drain will not fit the condensate removal requirements: # ASP-MO-UNIV The pump is provided as a kit Field supplied discharge tubing (1/4 ) may be required The pump is powered from the line voltage supplied by the indoor unit 99 Indoor Unit Installation Guidelines Wallmount Condensate Pump Installation The pump float switch must be installed inside the wallmount unit, the pump motor must be installed above the condensate pan water level It is recommended that whenever possible, install the pump motor above the ceiling using sound deadening material, or within the lineset cover Discharge tubing is field supplied

51 Indoor Unit Installation Guidelines Wallmount Condensate Pump Installation There are 2 methods for disabling the wallmount unit using the float switch on the optional pump kit Method 1: Temperature sensor connection Use the N.C. (Purple) and common (Grey) wires from the pump float switch to interrupt the temperature sensor signal (return air sensor on the front of the indoor coil) Do not use this method to interrupt the line voltage to the IDU, as this will cause the entire system to shut down when the float switch opens To Float Switch 101 Indoor Unit Installation Guidelines Method 2 External Contact Signal Wallmount Condensate Pump Installation Locate the external contact control wires (White & Black) inside the wallmount unit behind the PCB cover Cut the red external contact wire connector off Connect the pump s N.C. wires (Purple & Grey) to the wallmount s external contact wires (White & Black) Ensure that the wiring is properly connected and insulated and secure within the unit chassis Enable the external contact control for Off Only by changing the option code segment from 14 to a 2 When the float switch contact closure is open the wall unit will stop without an error code When the contact switch returns to the closed status the wall unit will enter standby The unit must be manually turned on at remote controller or schedule event from a MWR-WE10N, WiFi or BMS system

52 Indoor Unit Features Floor Standing Unit AMO**JNF(G)DCH Features Models: 06, 09, 12, 18 & 24 MBtu/h Gravity condensate drain Electro-static washable pleated air filter AM0**JNFDCH/AA Concealed Floor Standing AM0**JNGDCH/AA Cased Floor Standing Front View 103 Indoor Unit Installation Guidelines Floor Standing Units - Installation Samsung floor standing units for under window or wall installations Concealed type can be installed on the floor or sidewall Units must be properly supported and level for condensate draining Exposed Type Exposed Type Concealed Type Concealed Type

53 Indoor Unit Features Slim Duct AMO**FNLDCH/AA Features Models: 07, 09, 12, 18, 24, 30, 36 & 48 MBtu/h Static pressure range:.08 to.24 WC depending on model Gravity condensate drain as standard Low sound levels ; 31dB to 39dB depending on model and fan speed Washable air filter screen Rear or bottom return air Optional condensate lift pump assembly max. 29 lift Weight: 54 92lbs Incl. float switch, hardware & flexible outlet hose 105 Indoor Unit Installation Guidelines Slim Duct Lift Pump Installation Slim duct units are manufactured with gravity condensate drain Optional MDP-E075SEE3D factory pump kit is installed in the unit cabinet Remove the unit control side covers Align the position and install the pump unit Connect the pump harness (yellow) Connect the float switch harness (white) Install the control covers and connect the flexible tubing to the condensate drain piping Program the pump option code during system commissioning Slim Duct

54 Indoor Unit Features Duct S AMO**MNHDCH/AA Features Models: 07,09,12,15,18, 24, 27,30, 36 & 48 MBtu/h Static pressure range:.04 to.79 WC depending on model Auto Air Volume (ESP) function setting Field selectable ESP settings User Smart Tuning function Low sound levels ; 22dB to 41dB depending on model and fan speed Washable air filter screen Rear or bottom return air Factory installed condensate lift pump assembly max. 29 lift (No check valve) Optional air filter box Weight: lbs Includes integrated float switch 107 Indoor Unit Installation Guidelines Duct S - Unit Installation 123 Duct S unit provides service access from top side bottom Top cover (Front & Rear) Heat Exchanger, Blowers & Motor Bottom cover (Front & Rear) Drain pan Heat Exchanger Blowers & Motor Side cover Control box Refrigerant piping Sensor Drain pump

55 Indoor Unit Installation Guidelines Slim Duct & Duct S - Unit Installation Maintain a minimum of ¾ clearance above the ducted unit to building structure and ¾ clearance below the ducted unit to ceiling to prevent noise transmission If the ducted unit is installed in an area above the ceiling with humidity conditions over 80%, the unit must be insulated with minimum 3/8 insulation Install the unit level and double nut the threaded rod under each mounting bracket Slim Duct Unit must have ample access for maintenance and future service Building structure Ceiling material 109 Indoor Units & Features HSP Duct AMO**JNHDCH/AA High Static Pressure Features Models: 54 MBtu/h Front discharge air and rear return air Discharge air temperature sensor Fan output can be field configured for various external static pressure settings Built-in condensate lift pump max. 29 lift (No check valve) Includes float switch Optional filter box: FB-M48/H3648 Field assembly required 1 or 2 filter configurations

56 Indoor Unit Installation Guidelines HSP Ducted Unit Installation Ducted units must be installed level and double nut the threaded rod under each mounting bracket When installed above solid ceiling with no attic access, service access panel must be provided: 20 x 20 minimum (control side) Service access for blower assembly is from bottom of unit Service access required: width & depth of unit plus 4 inches (WxD) If the installed location is subject to humidity above 80%, cabinet must be insulated with 3/8 insulation to eliminate the potential of sweating HSP Ducted 111 Indoor Unit Installation Guidelines Ducted Unit Condensate Drains Gravity drain requires drain line to downward slope 1/100 or more Lift Pump - Inside diameter of the condensate drain outlet & riser piping must not exceed ¾ ID Note: Ducted units with factory installed lift pump do not have a discharge check valve The flexible hose should be installed level or bent slightly downward The horizontal main condensate lines must be properly supported with hangars every 40 to 60. Condensate installation must be in accordance with state and local codes Gravity Condensate Drain Lift Pump Condensate Drain

57 Indoor Unit Installation Guidelines Ducted Unit Air Filters Slim Duct Slim Duct, Duct S & HSP Ducted units all have a washable electrostatic filter panel Duct S & HSP Ducted units are available with optional filter boxes Filter boxes are assembled in the field and can be configured for 1 or 2 air filters HSP Ducted 113 Indoor Unit Installation Guidelines Ducted Unit Fresh Air Guidelines Up to 10% of outside fresh air can be introduced into the return side of the ducted units (Slim Duct, Duct S & HSP ducted) When using outside fresh air into the return it is recommended to not use the ducted unit s return air sensor If using the MWR-WE11(13)N or MWR-SH10N wired remote controllers, the built-in sensor can be configured to be used in place of the unit RA sensor If using a remote controller without a built-in sensor, the MWR-TA External Room Sensor can be used Slim Duct HSP Ducted

58 Indoor Unit Installation Guidelines Ducted Unit Secondary Float Switch Installation Certain installations using concealed ducted units may require a secondary condensate drain pan with a field supplied emergency float switch HSP Ducted Slim Duct Duct S 115 Indoor Unit Installation Guidelines Ducted Unit Secondary Float Switch Installation Ducted unit with gravity condensate drain application Connect the secondary drain pan emergency float switch to the FLOAT-SW connector on the indoor unit PCB (CN411) Factory pigtail wire harness with connector is required (DB A) At commissioning enable the condensate pump setting When the float switch contact is open, error E153 is generated DB A CN83 Pigtail

59 Indoor Unit Installation Guidelines Ducted Unit Secondary Float Switch Installation Ducted unit with factory condensate lift pump application Connect the secondary float switch leads in series with the built-in float switch connection CN411 black connector 117 Indoor Unit Features Features Models: 12, 18, 24, 30, 36, 48, 54, & 60 MBtu/h Made in the USA Upflow, Horizontal Right, Horizontal Left installations Gravity condensate drain Constant torque ECM blower motor w/5 speed taps Standard ESP:.4 WC Max. ESP: 1.0 WC (systems over 18,000Btu/h) Optional electric strip heat kits and filter bases Multi-position AHU AMO**JNZDCH/AA 3,5,10,15 & 20Kw 1 & 2 filter sizes Hinged filter access door

60 Indoor Unit Installation Guidelines Multi-position AHU Installation Unit is shipped from the factory for upflow and horizontal left installation For vertical installations an optional filter base is available Unit can be field configured for horizontal right installation AHU cabinet is designed for 0 clearances (sides & back) for units without electric heat For units with electric heat kit installed, 1 clearance is required for supply plenum and supply duct 30 Condensate requires trap Horizontal left installation Horizontal right installation NOTE: For installations in non-conditioned airspace (attic or garage) unit must be insulated (1 ) and, or full dimension auxiliary drain pan. Refer to state and local codes for specific requirement 119 Indoor Unit Installation Guidelines Multi-position AHU Electric Heat Kit Heater kit includes circuit breaker and power pigtail leads Install the heater assembly into the rectangular opening in the discharge air Install the provided circuit breaker(s) in the front left of the control box Install the heater power wires through the knockout on the cabinet Connect the 6 pin male plug to the 6 pin female plug on the bottom of the control door Place the heater kit adhesive backed wiring diagram to the blower housing Install the heater unit temperature sensor to the lower section of the cabinet on the bottom of the gas pipe 3,5,10,15 & 20Kw

61 Indoor Unit Installation Guidelines Multi-position AHU Air Filters Samsung VBF filter bases are offered for vertical installations Filter bases include a 1 disposable air filter Filter base can be field configured for a 2 air filter Hinged filter access door All galvanized steel Assembled in the field 121 Indoor Unit Installation Guidelines Indoor Unit Power Wiring Connect the vac 1Ø wires to the 1(L) and 2(N) terminals in each indoor unit Ensure the unit is properly grounded for proper operation and safety Do not connect the main ground at the same point where the indoor unit PCB is grounded Line voltage ground Line voltage Example: 4-Way Cassette PCB

62 DVM S Eco Heat Recovery HR Changer & Sub MCU HR Changer & Sub MCU Eco Heat Recovery Refrigerant Network AM***NXMDCR HR Changer Cool-only Sub MCU HR Changer: Mandatory device for indoor unit mode changeover HR Changer is installed as the first device in the refrigerant piping network Cool-only indoor unit is connected to the HR Changer low pressure gas and liquid main pipes Sub MCU required for additional indoor unit zones after the HR Changer DVM Pro required for system design and layout

63 s s 7/19/2018 HR Changer & Sub MCU HR Changer R4NEKON 208/230 vac NASA communications (F1 F2) Max. capacity per port: 19 MBtu Max. IDU connection per port: 3 Auto addressing Auto pipe pairing All brazed pipe connections High Pressure gas Low Pressure gas Liquid 125 HR Changer & Sub MCU From ODU 10 E 9 s s 8 E E s 14 E To IDUs s E HR Changer - Diagram s s E Port s 5 4 To Sub MCU To Cool-only IDU (As applicable) No. Abbrev. Name 1 V_HT Heating valve 2 E_MC Mode Change EEV 3 V_CL Cooling valve 4 SC Subcooler(Intercooler) 5 T_SO Subcooler Out Temp. sensor 6 T_SI Subcooler In Temp. sensor 7 E_SC Subcooler EEV 8 V_LQ Liquid bypass valve 9 E_BY Bypass EEV 10 - Check vale High pressure pipe (From outdoor unit) Low pressure pipe (From outdoor unit) Liquid pipe (From outdoor unit) 14 - Liquid port (To indoor unit) 15 - Gas port (To indoor unit)

64 Refrigerant Cycle Diagram Cool Mode 127 Refrigerant Cycle Diagram Main Cooling

65 Refrigerant Cycle Diagram Heat Mode 129 Refrigerant Cycle Diagram Main Heating

66 s s E E s s E s s E s s E s s E s s E s 7/19/2018 HR Changer & Sub MCU Sub MCU S6NEK3N 208/230 vac NASA communications (F1 F2) Max. capacity per port: 19 MBtu Max. IDU connection per port: 3 Auto addressing Auto pipe pairing All brazed pipe connections High Pressure gas Low Pressure gas Liquid 131 HR Changer & Sub MCU Sub MCU - Diagram To IDUs No. Abbrev. Name 1 V_HT Heating valve 2 E_MC Mode Change EEV V_CL Cooling valve 4 SC Subcooler(Intercooler) 9 5 T_SO Subcooler Out Temp. sensor 6 T_SI Subcooler In Temp. sensor 7 E_SC Subcooler EEV V_LQ Liquid bypass valve High pressure pipe (From outdoor unit) Low pressure pipe (From outdoor unit) Liquid pipe (From outdoor unit) 12 - Liquid port (To indoor unit) From HR Changer 13 - Gas port (To indoor unit)

67 HR Changer & Sub MCU Placement HR Changer/ Sub MCU must be installed securely upright and level Recommendation: Avoid installation directly over occupied areas Support refrigerant piping properly: Refer to state and local code requirements Units must have proper service access space Condensate drain not needed Preferred MCU Placement Occupied Space Occupied Space MCU Hallway MCU Occupied Space Occupied Space 133 DVM S Eco Digital Control Wiring 67

68 Control Wiring Samsung NASA Digital Communications F1 F2 communications F3 F4 communications R1 R2 communications Example: Heat Pump system Integrated digital communications architecture sharing a common protocol (NASA) Proprietary to all Samsung DVMS VRF systems Basic 2-conductor control wire design simplifies installation Reliable Daisy-chain communication wiring 5vdc. 135 Control Wiring NASA Digital Control Layers F1 F2 Set Layer: ODU to IDU s (incl. EEV Kit) daisy chain connections F3 F4 Local Layer: Wired Remote Controller to indoor unit R1 R2 Control Layer: Outdoor Unit to DMS Centralized Control Control Wire: 16/2 AWG stranded with shield Never use solid core thermostat wire for digital communications F1 F2 Set Layer F3 F4 Local Layer R1 R2 Control Layer Example: Heat Pump system

69 Control Wiring Control Circuit Grounding Bond the bare shield wire throughout the system (daisy chain) Do not connect the shield wire to any indoor unit Ground the bare shield wire in the outdoor unit to a separate point other than the main line voltage electrical service ground F1 F2 communications Shield Shield Shield Shield F1F2 F1F2 F1F2 F1F2 R1R2 F1F2 R1 R2 communications Example: Heat Pump system Cut the shield wire on the last IDU Do not connect it DMS 137 Control Wiring HR Changer/Sub MCU F1/F2 Communications HR Changer and Sub MCU s communicate on the same F1 F2 buss as the indoor units Each MCU is connected to the F1 F2 buss via daisy chain connections Control wire shield is grounded at the Outdoor Unit only F1/F2 F1/F2 HR Changer Sub MCU Example: Heat Recovery system

70 Control Wiring Control Wire Connections When installing the control wire in the building, avoid contact with conduit which contains ac voltage wiring Fluorescent lights Equipment that generates electromagnetic waves (maintain 10 ft. clearance) Indoor unit Indoor unit PCB ODU Terminal Block (F3,F4) or (3,4) Shield connection not required F1 F2 ODU to IDU Communications 5vdc 12 vdc Not Used To Remote Controller 139 Control Wiring Remote Controller Wire Connections NOTE: The Neo Forte wallmount units, and the Multi-position AHU s do not have screw terminals for wired controller connection (F3/F4), 2-wire harnesses are used instead Neo Forte Wallmount Wallmount: From the control box, locate the white harness connector with red and blue wires. Cut the white connector off and Multi-position connect the AHU: red wire Locate to F3 the and tagged blue blue harness wire to F4 connector the remote with white controller and blue tagged wires in the control box Cut the blue connector off and connect the white and blue wires to F3 and F4 on the remote controller

71 Control Wiring Under Ceiling Unit - 1 Port EEV Kit MEV-E24/32SA EEV kit Powered and controlled by the Under Ceiling main PCB EEV unit includes the required wire harness to connect the EEV to the IDU control PCB on CN808 F1 F2 communications IDU Main PCB CN808 EEV Unit N L To Under Ceiling unit EEV control wire harness 141 Eco System Wiring Layout DVM Pro Design Software Tool Power & Control Wiring Diagram

72 DVM S Eco Basic Controls Overview Basic Controls Overview MR-EH00U Simple schedule control (On timer / Off timer) On/Off operation mode, fan speed, airflow, temperature setting Air filter maintenance alarm reset Zone selecting control (Max. 4 zones) Individual blade control Address and option setting Wireless Remote Controllers MR-KH00U 360 Cassette Air flow direction control Simple schedule control (On timer / Off timer) On/Off operation mode, fan speed, airflow, temperature setting Zone selecting control (Max. 4 zones) Buzzer sound mute Address and option setting

73 Basic Controls Overview AR-EH03E New Functions Wind Free operation select Automatic powered louver (blade) open/close control Long Air Throw Clean function internal moisture removal Comfort Zone Operation automatic start of Wind Free operation when room setpoint temperature is reached Wind Free Wireless Remote Controller No. Function 01 Set temperature / Timer indicator 02 Timer option indicator 03 Operation mode indicator 04 Options indicator 05 Low battery indicator 06 Signal transmission indicator 07 Fan speed indicator 08 Air flow direction indicator 09 Wind-Free indicator 10 Power button 11 Temperature button 12 Timer button 13 Wind-Free button 14 Direction button / Selection button 15 Vertical air swing button 16 Mode button 17 Fan speed button 18 Horizontal air swing button 19 Options button 20 SET button / Temperature type button ( ) 145 Basic Controls Overview Wired Remote Controllers MWR-WE11(13)N Multi-function Wired Remote Controllers Built-in room temperature sensor Controls from 1 to 16 indoor units A/C On/Off, operation mode, temp setting, air flow, fan speed 4-Way, Mini 4-way & 360 Round Flow Cassette control Wind Free Activate/Deactivate-dedicated function settings (MWR-WE13N) Sleep & Silent mode Backlit LCD display Error display Air filter maintenance reset Weekly operating schedule Upper/lower temperature limit setting Automatic operation stop function Energy saving operation mode Child lock Different button permission levels (operation mode, temp setting, On/Off, fan speed) Wireless remote control restriction Real time clock function: current time/day display, summer time Motion detection sensor function Service mode support

74 Basic Controls Overview Wired Remote Controllers MWR-SH10N Simple Touch Wired Controller Touchscreen control Backlit LCD display Controls from 1 to 16 indoor units Built-in room temperature sensor Indoor unit On/Off, operation mode, set point temperature and fan speed Error display Air filter maintenance alarm and reset Built-in infrared receiver allowing control of indoor unit wirelessly with the MR-EH00U controller Outing function for min. heat (61-72 F) min. cool (77-86 F) Button lock feature: All buttons or selected buttons: On/Off, temperature set, fan speed, timer function, louver swing, sleep function, quiet function, outing function, and operation mode. Temperature display option Relative Temperature Display indicates temperature increase or decrease compared to the reference temperature (0 to 3) 147 Basic Controls Overview MWR-SH00N Simplified Wired Controller Wired Remote Controllers Controls from 1 to 16 indoor units Indoor unit On/Off, operation mode, set point temperature and fan speed Error display Air filter maintenance alarm and reset Partial button lock feature: operation mode, temperature set, fan speed, timer function, timer and lock mode button Upper/lower temperature setting restriction Auto mode skip Heat mode skip (cooling only) Restrict wireless controller signal (optional) Louver position setting (cassette & wallmount) Single event timer function On/Off control, 30 mins. To 18 hour timer setting options System/indoor unit function and operation indication Defrost, error, restricted controller, Spi status Quiet mode setting (supported units only) Service mode for connected indoor unit operation monitoring addressing and setup Can be used to specify the Mode Master when connected to a single indoor unit in a heat pump system No built-in room temperature sensor- set point temperature display only

75 Basic Controls Overview 24vac Thermostat Adapter TADPT2 For those applications which require a 3 rd party 24 volt thermostat the TADPT2 thermostat adapter is available Adapter can control one or two DVMS indoor units (two units controlled as a group) Can be configured to operate indoor unit as primary or secondary heat source Can be configured for cooling only with heat from external source Emergency Heat output External contact input to disable unit N.C. operation Supports 1 or 2 stages of Heat and Cool Stage 1 & 2 Heat and Cool temperature setpoints Configurable fan operations Requires field supplied 24vac class 2 transformer AMO***JNZD Multi-position AHU s have an internal 24vac transformer as standard 149 Basic Controls Overview Wireless Remote Controllers Receiver MRK-A10N Wireless Signal Receiver Allows wireless control for concealed ducted units and the floor standing units On/Off control button Operation indication Error indication Filter replacement sign Recessed installation Includes interconnect cable

76 Basic Controls Overview External Room Sensor MRW-TA External Room Temperature Sensor Provides for more accurate room temperature control when indoor unit is installed in high ceiling, outside fresh air into the return, or using a remote controller with no built-in space sensor 2-wire connection to indoor unit PCB Replaces input from return air sensor and provides temperature sensing for remote controllers without internal sensor Applies to all DVM S indoor units Includes a 39 ft. 2-conductor connection cable Thermistor Sensor Unplug the IDU return air sensor (CN412) and plug in the MRW-TA wire in it s place 151 Basic Controls Overview Motion Detection Sensor MCR-SMA Optional for Mini 4-Way Cassette & Wind-Free 4-Way and Mini 4-Way Senses motion Detects temperature stratification throughout the room Function enable/disable via MWR-WE11(13)N wired remote controller Snaps into the cassette facia panel corner Connection cable included plugs into human sensor plug on PCB (CN401) Learns occupant schedule Mode Standard Premium Soft Off (minutes) Hard Off (minutes) Function Description SOFT OFF: turns off indoor unit but can restart with motion detection before HARD OFF HARD OFF: Turns unit off but will not turn back on after motion is sensed. Unit will need to be power ON with a unit controller SOFT OFF and HARD OFF are the same as Standard Mode Samsung comfort functions are activated

77 Basic Controls Overview Motion Detection Sensor MCR-SMA Samsung Comfort Logics (activated in Premium mode) Comfort Flow: MDS prevents the cassette from blowing air directly on occupants by changing air flow direction Comfort Temperature: When the temperature difference between the upper and lower parts of the room is large, the supply air louvers will lower to direct the air downward Comfort Saving: When no motion is detected the MDS will adjust the set temperature to reduce energy consumption Max F cooling & -3.6 F heating 153 Basic Controls Overview Motion Detection Sensor Power On/Off A/C Turn-On & MDS Activates Exit 80 min Enter Exit 80 min Enter 100 min 120 min Absence Presence Absence Presence SAMSUNG Action Energy ON SOFT OFF AUTO ON SOFT OFF HARD OFF NO OP. Soft OFF: System: OFF MDS: ON Auto-ON: ON Company A Action Energy ON HARD OFF NO OP. Hard OFF: System: OFF MDS: OFF Auto-ON: OFF 0 Example: ON/OFF Function 120min Auto-On : Set is turned-on itself by detecting motion (min)

78 Basic Controls Overview Motion Detector Sensor Indirect Air Flow Floor Temperature sensing People sensing O avoid direct air flow People sensing X direct air flow Feeling comfortable Ceiling Temperatures sensing Temperature difference of Floor-Ceiling Floor Ceiling Temperatures sensing Feeling comfortable 155 Basic Controls Overview WiFi Adapter MIM-H03UN WiFi Adapter WiFi Adapter allows control and scheduling of the VRF system remotely through Android and Apple devices Configuration requires the Samsung SmartThings app

79 Basic Controls Overview Heat Pump Mode Selection Switch MCM-C200 Mode Selector Switch Manual system mode select Heat Pump systems only Selectable Cool only Heat only Auto settings Installed in outdoor unit or in building Allows manual operation mode change preventing mixed operation Max. 328ft of 3 conductor control wire from control to outdoor unit Connects to K5 Cool, AUTO & K6 Heat terminals on the outdoor unit PCB Cool Cool Heat Set Cool 157 Basic Controls Overview External Contact Controller MIM-B14 External Contact Controller Direct indoor unit control by external contact signal Function examples: Hotel key card switch, door/window switch, occupancy sensor, On/Off ventilation control with indoor unit thermo-on/ thermo-off, external heat control, Indoor unit operation/error state output through relay contacts Emergency control with simple contact input Compatible with all DVM S indoor fan coil units On/Off On/Off Error On/Off Key-Tag Window Open Sensor Malfunction Alarm External Device Control

80 Basic Controls Overview External Contact Controller To control the indoor unit providing synchronized control with other devices through the external contact input/output signal Indoor unit option setting must be set to enable external control operation External contact input load: 5vdc 5mA Output terminals are open/close contacts 0 volts Maximum load rating on the Operation & Error terminals: 250vac, 3A Connectors provided External input Short: Indoor unit ON Open: indoor unit OFF CN81 ON/OFF CN83 Ducted unit PCB Contact Output (Operation state) Close: Indoor unit ON Open: Indoor unit OFF Contact Output (Error state) Close: No Error Open: Error 159 Basic Controls Overview Multi-Tenant Function Controller MCM-C210N When supply voltage to an indoor unit is removed/off, MCM-C210N will provide auxiliary 12V DC and 5V DC power to the indoor unit PCB (see table for indoor unit operation details) to keep "awake". When supply voltage to an indoor unit is supplied normally, MCM-C210N will cut auxiliary power to the indoor unit PCB allowing normal operation

81 Basic Controls Overview BMS Centralized Controls Touch Controller MCM-A300N DMS Data Management Server 2.5 MIM-D01AUN BACnet Gateway 2.5 MIM-B17BUN LonWorks Gateway 2.5 MIM-B18BUN 161 DVM S Eco Training Always refer to the Samsung product publications for specific information

82 DVM S Eco Training Rev 1.4 DVM S Eco Training Samsung piping installation guidelines and restrictions must be strictly followed Failure to follow Samsung piping guidelines may result in poor system performance, premature component failure, and reduced system service life Always refer to the DVM Pro piping diagram and mechanical prints when laying out the refrigerant piping system

83 Eco Refrigerant Piping Installation Training Topics Eco Refrigerant Piping Specifications Field Piping Components Piping Installation Tools Field Piping Installation Additional Guidelines 165 DVM S Eco Refrigerant Piping Specifications 83

84 Refrigerant Piping Specifications Eco Heat Pump & Heat Recovery Systems Heat Pump Systems 2-Pipe refrigerant network Liquid & Dual pressure gas Heat Recovery Systems 3-Pipe refrigerant network Liquid, Low & Dual pressure gas Y joint only Y joint with header joint Main pipe HR Changer HR Changer Main pipe HR Changer MCU 167 Refrigerant Piping Specifications Eco Refrigerant Piping Specifications Maximum Vertical Separation

85 Refrigerant Piping Specifications Eco Refrigerant Piping Specifications All piping specifications must be followed to insure that the system will operate properly Maximum of 492 ft. (574 ft. equiv.) length from the outdoor unit to the farthest indoor unit (a+b+c+d+e+f+g+p) Refrigerant Piping Specifications Eco Refrigerant Piping Specifications Maximum 361 ft. measured from the outdoor unit to the first Y-Joint Maximum cumulative piping length is 984 ft

86 Refrigerant Piping Specifications Eco Refrigerant Piping Specifications Main pipe sizing between outdoor unit and first Y-Joint When the equivalent distance from the outdoor unit to the farthest indoor unit is over 295 ft. the main gas pipe must be increased one size (5/8 to 3/4 & 3/4 to 7/8 ) > 295 ft. (equivalent) Refrigerant Piping Specifications Eco Refrigerant Piping Specifications Maximum distance from the first Y-Joint to the farthest indoor unit is 131 ft. (b+c+d+e+f+g+p)

87 Refrigerant Piping Specifications Eco Refrigerant Piping Specifications Maximum distance from a Y-Joint to an indoor unit is 131 ft Refrigerant Piping Specifications Eco Refrigerant Piping Specifications Maintain a minimum straight line distance: 20 before connecting to a Y-joint Minimum 36 straight line between Y-joints

88 Refrigerant Piping Specifications Heat Recovery HR Changer & Sub MCU Max Field Piping Lengths Total cumulative refrigerant piping: 984ft Outdoor unit to farthest indoor unit: 492ft HR Changer to farthest indoor unit: 131ft Outdoor unit to lowest indoor unit H1: 164ft Outdoor unit to highest indoor unit: 131ft Indoor unit vertical separation H2: 82ft (wallmount 49ft) Indoor units installed below HR Changer/Sub MCU H3: 49ft Vertical separation HR Changer (Sub MCU) to HR Changer (Sub MCU) H4: 66ft NOTE: All refrigerant piping sizing and length requirements are processed through DVM Pro Series Series Connection Connection Parallel Connection 175 HR Changer & Sub MCU Heat Recovery Basic HR Changer & Sub MCU Layout

89 Refrigerant Piping Specifications DVM Pro Design Software Every DVM S project must be designed through DVM Pro Insures all system components are compatible Insures correct layout of all system components Calculates all piping sizes & additional refrigerant Insures that system will perform as designed 177 Eco Refrigerant Piping Introduction System ODU/IDU & Piping Layout Diagram Example: DVM S Eco Heat Pump system

90 DVM S Eco Field Piping Components Field Piping Components Refrigerant Components Not To Be Used in DVM S Systems Liquid line drier Liquid sight glass Copper Tee s Aluminum tubing

91 Field Piping Components Recommended Refrigerant Components For DVM S Systems Isolation Valves (Field supplied) Allows future indoor unit service, replacement or additional installation to be done easier May allow main system operation during IDU service or replacement General Specifications Full port Bi-flow Service port Rated up to 750psi 181 Field Piping Components Isolation Valves Placement To insure proper system oil return, isolation valves must be installed directly after a Y-joint or Header port Isolation valve service port must be located on the indoor unit side Future service or relocation CLOSED Future expansion Future Expansion

92 Field Piping Components Required Refrigerant Components For DVM S Systems Field Piping Support Horizontal support hangars and clamps should be secured around the piping insulation and not the copper pipe Vertical piping must be secured with the correct clamp specifically for that purpose Always follow state and local codes for proper pipe support Vertical clamp example 183 Field Piping Components Required Refrigerant Components For DVM S Systems ACR dehydrated and sealed copper tubing Soft & Hard drawn Field piping insulation Wall thickness from 1/2 up to 1 ½ NOTE: Refer to the indoor unit installation manual for specific requirements Always follow state and local codes for insulation requirements

93 Field Piping Components Required Refrigerant Components For DVM S Eco Systems Branch Fittings MXJ-Y Y-joint (HR & HP) kits & MXJ-H Header kits (Heat Pump only) Kits include liquid & gas fittings Insulation pipe reducers Y-joint sizes based on system and indoor unit capacities Heat Recovery systems require the MXJ-Y Y-joint kit and one HR Hi pressure gas Y-joint Headers are only used on heat pump systems 4&8 port models available Liq GAS Heat Pump Y-joint kit models based on capacity Liq GAS Liq GAS Heat Recovery Applications GAS - HR 185 DVM S Eco Piping Installation Tools 93

94 Piping Installation Tools Manifold Gauge Set Combination Manifold Gauges should never be used on any R-410A system Use a dedicated R-410A manifold set, for DVM S systems only (5/16 flare recommended) Vacuum rated hoses recommended for system evacuation Maintain Hoses for dependability (replace as needed) Required Installation & Service Tools Piping Installation Tools Required Installation & Service Tools Always use the appropriate size tubing cutter with a sharp cutting wheel When cutting copper tubing the cut ends must be de-burred to provide a square end to provide a perfectly flat and smooth surface for making good flares To properly remove the cut burrs, a deburring tool is preferred to provide a smooth and square cut end in the tubing Preferred

95 Piping Installation Tools Required Installation & Service Tools Use a burnishing or eccentric - burnishing type 45 R-410A rated flare tool for high quality flares Burnished flare cones provide a superior seal Very Good Preferred R-410A flares are deeper providing more surface area for sealing Samsung DVMS indoor units provide the proper flare nuts Burnishing Style 45 Flare Tool Tubing height gauge Self centering yoke Multi-faceted burnishing cone 1/4 to 3/4 flares Eccentric Burnishing 45 Flare Tool Off-center cone rolls copper into a 45 burnished flare Handle clutch releases to avoid excessive torque on the tubing and flare 1/4 to 3/4 flares 189 Piping Installation Tools Required Installation & Service Tools Vacuum Pump Pump capacity should be a minimum of 6 cfm Vacuum pump must have a built-in check valve Pump must be kept properly maintained Start the evacuation process with new pump oil Large systems may require additional oil changes

96 Piping Installation Tools Required Installation & Service Tools Digital Vacuum Gauge As driers are not used in DVMS refrigerant lines it is imperative to properly evacuate the system to remove all moisture to insure a dry system All Samsung DVMS systems must be triple evacuated down to 500 microns or less The moisture level can only be determined with an accurate micron gauge Micron gauge should be connected to the system as far from pump as possible for an accurate reading Never evacuate a refrigeration system using atmospheric pressure or vacuum pump run time duration 490m 191 Piping Installation Tools Required Installation & Service Tools A good quality digital scale must be used to properly weigh in the liquid R-410A refrigerant DVMS systems are field charged with liquid R-410A refrigerant by weight based on the length of the refrigerant lines and the indoor unit models (Additional criteria may apply - refer to the ODU Installation Manual) Refrigerant lines should be measured as accurately as possible during installation to insure the proper additional refrigerant charge calculation Using accurate refrigerant line lengths, the DVM Pro Design tool will calculate the amount of additional refrigerant required for the system

97 Piping Installation Tools Required Installation & Service Tools Metric Hex Keys Torque Wrench Set Adjustable Wrench or Wrench Set Nitrogen Regulator 193 Piping Installation Tools 5/16 Valve Core Removal Tool w/side port Recommended Installation Tools Tubing Bender Kit Tubing Swaging Kit

98 DVM S Eco Field Piping Installation Field Piping Installation The DVM Pro software will generate a complete material and equipment list including the amount of refrigerant piping by size and the additional refrigerant required New installations always start with jobsite layout using DVM Pro reports, diagrams and the project mechanical prints Never install refrigerant piping without first accurately measuring the lengths from the outdoor unit to each indoor unit DVM Pro Piping Diagram and Equipment (material) list must be updated Updated Piping, Wiring and Materials list should be included in the project As-built documents

99 Field Piping Installation Y-joint Installation Guidelines Samsung Y-Joint fitting kits will include the necessary reducers to connect to various pipe sizes All Y-Joint fittings are installed horizontal level (+ 15 of horizontal plane) or vertical up / down Horizontally installed Vaporized refrigerant forms to upper segment of the Y-joint. 197 Field Piping Installation Y-joint Installation Guidelines Required: To avoid turbulence and potential noise in the Y-joint refrigerant piping, space 90 elbows at least 20 from the Y-Joint inlet, and 36 between Y-Joint fittings Multiple Y-Joints are not to be connected together Recommended: Allow a minimum of 20 on the branch side

100 Field Piping Installation Y-joint Installation Guidelines Care must be taken to ensure that the refrigerant piping is not inserted too far into the Y-joint before brazing If the Y-joint fitting does not have a groove to stop the copper pipe from entering too far, measure and mark the pipe at 5/8 from the end If the pipe is inserted too far, turbulence is created and potential noise Some Y-joint fittings have selectable end segments to facilitate multiple pipe diameters Cut the segment from 3/8 to 5/8 from the end Field Piping Installation Y-joint Installation Support Install a support before and after each Y-joint to prevent sagging and stress on the brazed connections (within 18 of the inlets and outlets) Gas piping up through 7/8 should be supported up to 47 apart Refer to state and local codes for piping support compliance

101 Field Piping Installation Header Installation Guidelines Header joint kits will include a liquid fitting, gas fitting, reducers and insulation The liquid fitting is open at both ends to allow left or right installation Braze the included plug on the open end after the incoming refrigerant pipe is connected Plug Pinch and braze any unused ports The outlet ports (liquid and gas) can only connect to a single indoor unit, never a Y-joint or Multi-port EEV kit 201 Field Piping Installation Header Installation Guidelines Inlet Inlet LEVEL Inlet Liquid Header LEVEL Outlets Both the liquid and gas headers must be installed level Inlet Outlet Back of suction header fitting once installed Gas Header Ports pointing down

102 Field Piping Installation Header Installation Guidelines Liquid and gas headers must be supported to eliminate any stress on brazed connections (Gas ports pointing down) 203 Field Piping Installation Required Piping Practices Brazing 15% Silver-Phosphorus brazing rods are the recommended brazing material for all Samsung DVMS systems Never use a brazing material that requires flux to be applied

103 Field Piping Installation Required Piping Practices Nitrogen Purge A dry nitrogen purge is required for the entire brazing process (Pressure regulated up to 3 psi) 205 Field Piping Installation Required Piping Practices Nitrogen Purge The nitrogen purge displaces oxygen and prevents oxidation from forming inside the tubing preventing contamination of the refrigerant network Problems caused include: Plugged up EEV s, filter screens & orifices Contamination of compressor oil Compressor damage No Nitrogen Purge Nitrogen Purge

104 Field Piping Installation Required Piping Practices Nitrogen Purge Using a nitrogen flow regulator, maintain 2 3 PSI) of pressure If you are having difficulty maintaining this, partially cover the opposite end of the pipe with tape to maintain pressure If flow is too low, oxidation will still form within the tubing If flow is too high, it will be difficult to make a quality brazed connection Maintain nitrogen flow after brazing is complete until piping cools 207 Field Piping Installation Good Piping Practices During the course of installation the piping should be blown out with nitrogen to clear out any debris When the refrigerant lines are not connected to the Indoor and outdoor units during construction the ends should be pinched off and brazed to properly seal the piping Maintaining a dry nitrogen charge in the dormant lines is recommended Pinched & brazed Capped or taped not recommended

105 Field Piping Installation Required Piping Practices Proper Pipe Routing Piping around obstacles When an obstacle, such as a beam or concrete structure, is in the path of the planned refrigerant pipe run, it is best practice to route the piping over the obstacle or under. If adequate space is not available to route the insulated pipe over the obstacle, then route the pipe under the obstacle. In either case, it is imperative the length of the horizontal section of pipe above or below the obstacle be a minimum of three (3) times the longest vertical rise (or fall) at either end of the segment. 3 X (minimum) X Structure Structure X Over obstacle 3 X (minimum) Under obstacle 209 Field Piping Installation Making A Good R-410A Flare After cutting and deburring the copper tube, place the flare nut onto the copper pipe Set the copper pipe into the flare block and adjust the height Run the flare handle in twice for a well polished flare cone Verify correct flare diameter by slipping the flare nut over the flare cone Pipe Height Flare Block

106 Field Piping Installation Making A Good R-410A Flare Connection Apply any synthetic oil to the flare cone inner and outer surfaces only Do not lubricate the flare threads Do not use any type of thread sealant on the flare threads Always use a torque wrench with a backup wrench to properly tighten flare nut connections Refer to the unit Installation Manual for flare nut torque specifications by flare nut size Backup wrench Apply synthetic oil to the inner and outer flare surfaces only 211 Field Piping Installation Required Piping Practices High Pressure Leak Test Samsung requires a 3 step high pressure nitrogen leak test on the completed system 600 psi System 3 Step Nitrogen Pressure Test All field refrigerant piping is installed and connected to the Outdoor and Indoor units ODU stop valves are closed 1. Pressurize the system to 100 psi for 5 minutes 300 psi 2. Increase the pressure to 300 psi for 5 minutes 3. Increase the pressure to 600 psi and hold for 24 hours 100 psi Min 5 Min 24 Hr

107 Field Piping Installation Required Piping Practices Leak Test Pressure Drop Nitrogen pressure is subject to pressure fluctuation above 300 psi, based on ambient temperature changes Use this formula to compensate for temperature changes from one day to the next when performing the 24 hour pressure test The following formula will determine system pressure drop caused by low ambient temperature change Record the Temperature when the system is pressurized (Tp) Subtract the Temperature when the pressure is checked (Tc) Multiply by a factor of 0.80 to get the Pressure Drop (PD) ( Tp Tc ) x 0.80 = Pressure Drop 213 Field Piping Installation Required Piping Practices High Pressure Leak Test To properly check for leaks in the piping network during the high pressure test use only commercial liquid gas leak detector Never use household liquid soap for leak detection Never use a refrigerant dye for leak detection Never use an injectable refrigerant leak sealant

108 Field Piping Installation Required Piping Practices System Evacuation A check valve in the vacuum pump will avoid pump oil from being drawn into the vacuum hose if the pump motor is inadvertently shut off Close main valve before turning off vacuum Pump motor!!! Vacuum pump mineral oil 215 Field Piping Installation Required Piping Practices System Triple Evacuation System Triple Evacuation Procedure Evacuate the system down to 4000 microns Break vacuum with dry nitrogen Hold for 15 minutes Evacuate the system down to 1500 microns Break vacuum with dry nitrogen Hold for 15 minutes Evacuate the system down to 500 microns or less Hold the vacuum for 60 minutes DO NOT remove manifold gauges with system under vacuum DO NOT leave system under vacuum Use the system vacuum to draw in the additional refrigerant charge as calculated by DVM Pro

109 DVM S Eco Additional Guidelines Additional Guidelines Measure the actual refrigerant line lengths on site, as accurately as possible and submit to update the DVM Pro Piping Diagram ; the program will then re-calculate the additional refrigerant charge required for the system based on actual on-site measurement Revised piping diagram with the refrigerant charge amount should be included with the installation As-built documents The additional refrigerant charge amount should be documented on the inside of the outdoor unit on the start-up card All indoor units are shipped from the factory with the EEV s in full open position The entire field piping network including the flare connections at the indoor units must be completely insulated with no gaps When there is not sufficient vacuum in the system to draw in the complete additional refrigerant charge, use the Heating refrigerant charge or Cooling refrigerant charge at the outdoor unit to pull in the remainder of the refrigerant charge amount Refer to the outdoor unit Installation Manual for the appropriate code settings Before operating the compressor or putting the system into Check Operation mode, the outdoor unit should be powered up for 3 hours to insure no liquid refrigerant in the compressor

110 DVM S Eco Training Training Topics SNET Pro 2 Service Software Basic System Addressing Basic Indoor Unit Settings System Start-up & Settings Startup Tool SNET Pro 2 Indoor Unit Option Settings External Controls External Heat Control 219 DVM S Eco SNET Pro 2 Service Software 110

111 SNET Pro 2 Service Software SNET Pro 2 Service Software is used to monitor and program all Samsung DVM S systems DVM S system commissioning and configuration can be performed through the local remote controllers however, use of the SNET Pro 2 is easy and strongly recommended This section will cover the basic use and operation of the SNET Pro 2 software The SNET Pro 2 software can be easily downloaded from the DVM Download Website: 221 SNET Pro 2 Service Software Communication Converter MIM-C02N Includes the communication S converter, USB cable, and firmware update cable The firmware update cable is used to connect to a PCB and reprogram the MICOM with new firmware S-Converter USB Cable Firmware Update Cable Control Wire (Field Supplied) NOTE: Software and driver can be downloaded from

112 SNET Pro 2 Service Software MIM-C02N Components Firmware update cable RS232-to-RS485 S-Converter bottom view Equipment/control PCB update cable connection Included cable will allow connection of the converter to IDU & ODU controller PCB s for firmware updates This is one of two ways to reprogram a PCB with updated firmware 223 SNET Pro 2 Service Software SNET Pro 2 Connection USB cable Connect the USB cable to the laptop and the S-Converter After connection wait 30 seconds before opening software, this allows Windows to configure the COM port RS485 Communication Connect TX+ and TX- on the converter to F1 and F2 at any F1/F2 connection point with field-provided control wire Run S-NET Pro 2 TX- F2 TX+ F

113 SNET Pro 2 Service Software Status LED s USB cable connection Control command from SNET 2 It blinks whenever indoor unit control commands are delivered from SNET 2. Communication state between outdoor and indoor units. It blinks when there exists data flow on the F1-F2 communication lines. It blinks even when TX+ and TX- on the converter is connected wrong to the F1-F2 terminals (TX+ F2, TX- F1). Power-on indication and communication speed setting When the USB cable is connected with both the PC and the converter, it blinks every 0.25 seconds indicating high-speed communication setting. Connect to indoor/outdoor F1 F2 communication lines TX + F1 TX - F2 225 SNET Pro 2 Service Software Configuration Main Screen Basic Layout Main menu Automatic start-up report generation to PDF file SNET Pro 2 connection Indoor unit control panel Layout initialization Replay data file location opening Data backup 1. Comm. data 2. Excel data Software version Communication state (flickering)

114 SNET Pro 2 Service Software 1. The first time using SNET Pro 2, click the configuration button, then select Options Here you can change from Metric to Standard units SNET Pro 2 Service Software Main Menu Configuration In the configuration section, the first option is to open a recorded file This will allow you to specify a recording of a DVM S system in operation The list of recently opened files. File Extension is changed from *.dvr to *.ndvr for distinguishing S-NET pro

115 SNET Pro 2 Service Software Configuration Select Model Configuration The second option allows outdoor unit type specification Specify if you are connected to DVM Eco Outdoor unit model selection Only supports DVM S Systems 229 SNET Pro 2 Service Software Configuration COM Port SNET Pro 2 should auto detect the COM port being used Click Serial Port to adjust COM ports if communication is not present Available serial ports automatically detected

116 SNET Pro 2 Service Software Connect Click Connect to initiate communications with the DVM S Eco system Serial port connection S-NET Pro 2 exit Connect and Exit 231 SNET Pro 2 Service Software Main Screen DVM S Eco Outdoor Unit Data

117 SNET Pro 2 Service Software Eco Outdoor Unit Data Details Target Frequency = Target compressor frequency Order Frequency = Frequency steps while changing compressor frequency Current Frequency = Current compressor frequency Discharge1 = Compressor discharge temperature Comp Top1 = Temperature of top of compressor Compressor Current1 = Operating current of compressor IMP1 Temp = IPM (inverter PCB) temperature CondOut Temp. = refrigerant temperature exiting condenser coil (cooling cycle) Liquid Tube Temp. = refrigerant temperature exiting outdoor unit subcooler Main EEV = Expansion valve step for heating EVI EEV = subcooler expansion valve step Main MICOM = MICOM model and firmware date of Main PCB Inverter1 MICOM = MICOM model and firmware date of Inverter PCB EEPROM Version = MICOM model and firmware date of EEPROM PCB Editable An outdoor unit name/location can be entered. This will save to the ODU EEPROM 233 SNET Pro 2 Service Software Changing Outdoor Unit Name Video

118 SNET Pro 2 Service Software Indoor Unit Data Screen Item Description Capacity Indoor unit capacity (variable depending on heat load) Mode Operation mode Speed Fan speed Set temp Set temperature Intemp EVA IN EVA OUT EEV Discharge (Duct) MTFC Status Room temperature Evaporator inlet temperature Evaporator outlet temperature EEV open position Duct unit discharge air temperature. Cassette and wall units will display -58 at all times. Multi-Tenant Function Controller Status (MCM-S210N) 235 SNET Pro 2 Service Software Indoor Unit Installation Data Screen Double Click Location can be edited in with SNET Pro 2. It is also shown in DMS 2.5 as "device name This will stay with the unit for controller setup and future SNET Pro 2 use Indoor unit installation information Multi-Function Tenant Controller (MCM-C210N) status

119 SNET Pro 2 Service Software Changing Indoor Unit Name Video 237 SNET Pro 2 Service Software Main Screen Controller System reset This will completely reset the system Equivalent to pressing K3 in outdoor unit Resets system like cycling power to outdoor unit PCB

120 SNET Pro 2 Service Software Backup If the system has disabled itself due to system error and nobody has reset the system, data leading up to the error code can be retrieved. If data is available, the EEPROM Backup icon will be available Click and follow prompts to save data for review Download of 30-minute backup data before system error File name: Modelname_EEPROM_Date_Time.xls File save location: 1. Default: C:\...\My Documents\S-NET pro\recorddata 2. User-set location 239 SNET Pro 2 Service Software Trend Graph Click Add to create a new window Click Add to add items/monitor points to that window Add/delete data in graph window Add/Delete graph windows (max. 4 graph windows)

121 SNET Pro 2 Service Software Create Trend Graph Add data to be displayed in the graph window All the parameters which can be graphically display start flickering 241 SNET Pro 2 Service Software Add Data Points To Trend Graph All available monitor points will flash Double click indoor, outdoor points that you want to trend Double-click data to add Automatic graph display start

122 SNET Pro 2 Service Software Trend Graph Settings Y-axis scale setting Automatic Y-axis adjustment Graph span setting Max. 6 data graphs per window Time Span 243 SNET Pro 2 Service Software To delete a monitor point, click that item then click Delete Deleting Data Point From Trend Graph 2 1. Select data to delete. 2. Press Delete

123 SNET Pro 2 Service Software Replay Tab Playing Recorded System Operation Replay at x1~x8 speed In the Replay tab, you can view the current position during recorded file viewing Drag the scrollbar to the desired time Start/End time display Here you can also speed up the playback, rewind, or fast forward 245 SNET Pro 2 Service Software Changing Indoor Unit Address Current Indoor Main Address Address to Change Selected Indoor Unit s Main Address Change 0~63 (DO NOT DUPLICATE Addresses!) Apply when OK

124 SNET Pro 2 Service Software Changing Indoor Unit Address Example Video 247 SNET Pro 2 Service Software Help Tab Error Codes In the Help tab, click Error Codes to view all error codes with brief description

125 SNET Pro 2 Service Software System Operation Data Details In Help tab, click Valid Boundary Info to view operating temperature, pressure, etc., data ranges Normal operation criteria (cooling, heating) 249 SNET Pro 2 Software Exercises SNET Pro 2 Software Setup 1. Download the SNET Pro 2 software to laptop 2. Setup laptop and converter 3. Connect laptop and converter to a DVMS system 4. Review the status LED s on the converter 5. Launch the software and review the main screen layout 6. Review the 1 st time configuration 7. Go through the connect process from laptop to DVMS system 8. Review the data details 9. Review the trend graphics available

126 DVM S Eco Basic System Addressing Basic System Addressing Step Description Display Remark 1 Power on Indoor unit quantity setting required System Setting Procedure All units power on Tracking Indoor unit quantity setting (Manual setting) Press K1 + K2 for 2 seconds K2 x n times (Ten digit setting) IDND display Indoor unit quantity setting 2 Or Auto setting K4 x n times (One digit setting) Press K4 for 2 seconds Heat Recovery Yes No Save Press K2 for 2 seconds (Heat Pump) HR change and MCU quantity setting (Auto or Manual) 3 HR Changer MCU quantity setting ` Or Auto setting 4 HR setting Press K1 K2 x n times (Ten digit setting) K4 x n times (One digit setting) Press K4 for 2 seconds Press K1 Press K4, 01 : Heat recovery 00 : Heat pump(factory default) 5 *Save Press K2 Heat Recovery setting Save Error display (E216, 217, 218) Indoor unit s address, MCU address and port setting (Or Auto Pairing) Up display Auto start up Save

127 Basic System Addressing Main Control PCB Specifications 36, 48, & 53 MBtu/h HP models Eco Outdoor Unit Main PCB 60 MBtu/h HP model All HR Models Outdoor unit option set Indoor unit quantity set DIP switches & Rotary switches Outdoor unit option set Indoor unit quantity set Commissioning & Service modes K1 K2 K3 K4 Tactile switches K1 K2 K3 K4 Commissioning & Service modes K1 K2 K3 K4 Tactile switches K1 K2 K3 K4 253 Basic System Addressing Outdoor Unit Main PCB 36,48 & 53 MBtu Heat Pump Models Set the connected indoor unit quantity on the ODU Main PCB SW52: 1-9 When the ODU is powered up, the system will automatically address the IDU s Option: Manual addressing remote controller or SNET Pro 2 IDU main address range Set the quantity of indoor units from rotary switch SW52 SW

128 Basic System Addressing Outdoor Unit Main PCB 60 MBtu HP Model / All HR Models Set the connected indoor unit quantity on the ODU Main PCB K1 K2 K3 K4 Tactile switches When the ODU is powered up, the system will automatically address the IDU s Option: Manual addressing remote controller or SNET Pro 2 K1 K2 K3 K4 255 Basic System Addressing Set MCU Quantity

129 Basic System Addressing HR Changer/Sub MCU PCB Example: Sub MCU Individual port connection ( 19 MBtu) F E D C B A MCU Address DIP Switches: Port Assign On: Port Enable (default) Off: Port Disable A B C D E F 257 Basic System Addressing HR Changer/Sub MCU PCB Example: Sub MCU Assigning dual ports using Y-Joint to increase indoor unit capacity > 19 MBtu S/W Option DIP Switches Y-Joint Dual Port Assign S/W option DIP switch No. ON(Default) (Individual connection) OFF (Shared connection) 1 Each of ports A and B Paring port A and B 2 Each of ports C and D Pairing port C and D 3 Each of ports E and F Pairing port E and F 4 N/A N/A Default Setting

130 Basic System Addressing HR Changer/Sub MCU Auto Pipe Pairing HR You can use the Automatic pipe-address setting operation to automatically set the address of each MCU port that is connected to an indoor unit. To run the Auto pipe pairing operation, take the following steps: 1.Press the K2 button 10 times on the main PBA of the outdoor unit to start the Auto pipe pairing operation. (Display: ) Temperature Outdoor temperature < 75 F 75 F Outdoor temperature < 86 F 86 F Outdoor temperature Avg. Indoor temperature < 75 F Avg. Indoor temperature 75 F Main heating operation Main heating operation Main cooling operation Main cooling operation This operation takes about 25 to 55minutes normally depending on the number of indoor units connected.(max. 2hours) Step 1 (Start ) Steps 2 to 8 (Setup ) Step 9 (Check ) Step 10 (Confirmation ) 259 Basic System Addressing HR Changer Pipe Pairing HR Basic logic - Operate system in main cooling or main heating. - Open the solenoid valve of MCU(some cool valve, the others heat valve) then check evap temperature for 5mins. : Evap temperature goes up Delete cooling port number : Evap temperature goes down Delete heating port number - The cooling & heating valves in the MCU are alternately operated step by step until only one port remains for the indoor unit Step 1. HR Changer Cooling. Delete Ports A&B Cooling. Delete Ports A&B Heating. Delete Ports C&D Heating. Delete Ports C&D C H C H C H C H A B C D Address : 0 Address :1 Address : 2 Address : 3 Step 2. HR Changer Heating. Delete Ports C Cooling. Delete Ports D Heating. Delete Ports A Cooling. Delete Ports B C H C H C H C H A B C D Address : 0 Address :1 Address : 2 Address : 3 Confirm Ports D Confirm Ports C Confirm Ports B Confirm Ports A HR Changer C H C H C H C H A B C D My port is D My port is C My port is B My port is A Address : 0 Address :1 Address : 2 Address :

131 Basic System Addressing Indoor Unit Manual Addressing MWR-WE11(13)N How to enter the Service Mode 1. Press and hold the Set & Delete keys together 2. Press key to change the setting value 3. Press key to select the setting value 4. Press the Set key to save the setting value 5. Press the ESC key to exit and return to normal mode Menu display Setting value MWR-WE13N 261 Basic System Addressing Indoor Unit Manual Addressing MWR-WE11(13)N

132 Basic System Addressing Indoor Unit Manual Addressing MWR-WE11(13)N Press Set and Delete buttons at the same time for more than 3 seconds. [Main menu] will be displayed and then press, button to select no = INDOOR UNIT, ON OUTDOOR UNIT 00 IDU Main address Press button then see the main address. Press, button to select which indoor unit you will set (when there is more than one indoor unit connected) Press button to select the number you will set. Press, button to select no. 1. Current Address New Address Controller address Press button to enter the address setting stage. When you enter the setting stage, the current setting value will be displayed like left picture. Press, button to select the desired address. Press Set button to complete the address setting. 263 DVM S Eco System Start-up & Settings 132

133 System Start-up & Settings Recording New System Operating Data Before starting the heat or cool commissioning modes, use the SNET Pro 2 Service Software to record the system operating data During the system startup, stop recording and restart the system between the various tests Save the data for later reference should any service issues arise 265 System Start-up & Settings Startup Outdoor Unit Display Sequence Display Check point Check display segment 1 Digit 8 blink consecutively from left to right Check whether seven-segment defect or not Starting Tracking 2 Ad means starting tracking No difference of display between manual and auto addressing

134 System Start-up & Settings Startup Outdoor Unit Display Sequence Display Check point 3 Communication between the outdoor and indoor unit Micom tracking indoor unit address 0 to 63 If Micom receives response from indoor unit, the address will display on the right side 0~63: Indoor address 4 UP Display Upon completion of tracking, UP appears on the display at initial installation UP means UnPrepared Not ready for operation Implement test operation (Cooling/Heating mode) UP disappears normal operation more than 1 hr. 5 Segment meaning Number: Indoor unit address Scrolls AO** connected indoor unit addresses Heat pump scrolling 3 indoor unit addresses (18, 53, 57) 267 System Start-up & Settings Outdoor Unit Display UP UP = UnPrepared To clear UP status, hold K1 button for 5 seconds The display will show KK The outdoor unit will run through various outdoor unit and system checks When complete, the unit will stop and display will scroll connected equipment addresses K1 K2 K3 K

135 System Start-up & Settings System Startup Common Error Codes Display Error Code Resolution 1 E201 To check the number of indoor units connected with the outdoor unit as set on the indoor unit number rotary switch If the number of indoor units set on the rotary switch doesn t not match with those during tracking, E201 is displayed Check for indoor unit address duplication Check communication wire installation E202 Communication error between indoor and outdoor unit after tracking 2 Check for indoor unit address duplication Check communication wire installation 269 System Start-up & Settings Outdoor Unit Error Display Details First error code digit definition E P U A C 101 ~ ~ 800 Displayed when an Display an item that error is decided by requires more than 2 self diagnosis detections for deciding whether it is an error or not during the 1 st detection Displays the outdoor unit address where an error has occurred. U200: Outdoor Unit Displays the indoor unit address where an error has occurred. Ex) A000: An error has occurred at indoor unit address 00 Displays the PCB code where a communication error has occurred. C001 = Hub PCB C002 = Fan PCB C003 = Inverter1 PCB Ex) A007: An error is occurred at number 07 address indoor unit

136 System Start-up & Settings Outdoor Unit Error Display Details Cont. Error display sequence Classification Error display method Display example Indoor unit error display Outdoor unit error display Error # Indoor unit address Error #, repeat display Error # Outdoor unit address Error #, repeat display E153 A002 E153 A002 E438 U200 E438 U200 E206 C002 E206 C002 VIDEO: E296 = Refrigerant leakage U200 = Error in outdoor unit 271 System Start-up & Settings Heat & Cool Mode Changeover Heat Pump The DVMS Eco system controls Heat & Cool operation for all of the indoor units by one of three methods: During system commissioning the first indoor unit switched on, controls the mode of operation for all indoor units (factory default) Setting the Mode Master to one remote controller in the system Configuring the Samsung DMS centralized controller - Recommended ON ON ON ON Mode Master 1st ON ON DMS

137 System Start-up & Settings Setting The System Mode Master Heat Pump The DVM S Eco system can be field configured to enable Mode Master changeover Heat & Cool changeover is controlled by the Mode Master remote controller To set: select the appropriate remote controller, press and hold the Mode button for 5 sec. To cancel: Press and hold the Fan button for 5 sec. Selected IDU must be powered up but switched OFF to select the Mode Master Restricted will flash while holding the Mode or Fan button MWR-WE11N MWR-WE13N MWR-SH10N 273 System Start-up & Settings System Setup Exercises 1. Demonstrate the SNET Pro 2 recording the system operation 2. Verify communications between the Outdoor Unit and the Indoor Units 3. Initiate Tracking 4. Create an UP scenario and show the procedure to clear

138 System Start-up & Settings Outdoor Unit PCB K Tactile Buttons K1, K2, and K4 tactile buttons are used to put the system into various service and commissioning modes Also used for system operation data view The 36,48,53 MBtu outdoor units use the K5~K16 DIP switches for ODU Option Settings K1 K2 K3 K4 K1 K2 K3 K4 36,48 & 53 MBtu Heat Pump Systems 60 MBtu HP & All HR Models 275 System Start-up & Settings System Operation Key Mode Display example: K9 Press and hold K1 to initiate Auto Trial Operation to release UP mode Digital K K1 K2 K3 K4 Open all valves for system evacuation Exit K1 K2 K3 K

139 System Start-up & Settings System Operation Key Mode Discharge mode of DC link voltage Inverter compressor check K1 K2 K3 K4 HR Auto pipe pairing Exit 277 System Start-up & Settings System Operation View Key Mode K3 press Function 1 System reset K1 K2 K3 K4 K4 Press 1 Outdoor unit model 2 Order frequency 3 High pressure 4 Low pressure 5 Discharge temperature 6 IPM temperature 7 CT sensor value 8 Suction temperature 9 Condenser out temperature 10 Liquid pipe temperature 11 TOP temperature Function

140 System Start-up & Settings System Operation View Key Mode Cont. K4 Press 12 Outdoor temperature 13 EVI inlet temperature 14 EVI outlet temperature 15 Main EEV step 16 EVI EEV step 17 Fan step 18 Current frequency 19 Master indoor unit 20 HR Bypass EEV step Function K1 K2 K3 K4 K4 press (2 seconds more) 1 Main micom version 2 Inverter micom version 3 EEPROM version 4 Automatically assigned address 5 Manually assigned address Function 279 System Start-up & Settings Set Outdoor Unit Option Settings 1. Press and hold the K2 button to enter Option Settings mode System must not be in operation 2. Press K1 repeatedly to change SEG1, SEG2 option numbers 3. Press K2 repeatedly to change SEG3, SEG4 option value K1 K2 K3 K4 4. Press and hold K2 to store the changed option code All of the segments blink to indicate the changed option has been stored K1 K2 K3 K4 NOTE: During the option setting mode, the setting value can be reset to the previous setting by pressing and hold the K1 button To restore option setting to factory default press and hold K4 during the option setting mode Press and hold K2 during tracking mode to save setting

141 System Start-up & Settings Outdoor Unit Option Setting Snow Prevention Dip switch K6 will enable snow accumulation prevention 36,48 & 53 MBtu HP models When an outdoor unit is idle and the outside temperature is below 41ºF, the fan will operate every 30 minutes for 1 minute, to prevent snow from drifting against the unit 60 MBtu HP model All HR Models K1 K2 K3 K4 281 System Start-up & Settings Outdoor Unit Option Setting Cooling Capacity Calibration Dip switch K7 and K8 will allow cooling capacity adjustment 36,48&53 MBtu HP models This changes the average target indoor unit evaporator inlet temperature A cooler coil temperature will increase capacity but may use more power This can also help improve performance at long pipe lengths 60 MBtu HP model All HR models K1 K2 K3 K4 45 F - 48 F Default 41 F - 48 F 48 F - 52 F 50 F - 54 F 52 F - 55 F 50 F - 57 F 55 F - 59 F

142 System Start-up & Settings Outdoor Unit Option Setting Heat Capacity Calibration Heating operation increases frequency when current high pressure is higher than the target high pressure; vise versa decreases frequency When Target high pressure is high, the discharge air temperature of an indoor unit will increase along with energy consumption Maintaining factory default status is recommended; note, when the target high pressure is decreased, the discharge air temperature of the indoor units decreases as well 60 MBtu HP model All HR models 36,48&53 MBtu/h HP models K1 K2 K3 K4 435 psi (Default) 363 psi 377 psi 391 psi 406 psi 421 psi 449 psi 464 psi 479 psi 283 System Start-up & Settings Outdoor Unit Option Setting Night Quiet Mode Dip switch K9 and K10 will enable night time quiet operation 36,48&53 MBtu HP models Step 1: decrease maximum fan RPM Step 2: decrease maximum fan RPM and decrease compressor Hz Step 3: decrease maximum fan RPM and compressor Hz further NOTE: this operation can impact capacity 60 MBtu HP model All HR models K1 K2 K3 K

143 System Start-up & Settings Outdoor Unit Option Setting Current Limitation Dip switch K13 and K14 will enable maximum current limitation of the outdoor unit - 36,48&53 MBtu HP models (for energy saving only, not electrical safety issues or code compliance) Maximum current = MCA on outdoor unit data tag 60 MBtu HP model All HR models NOTE: this operation can impact capacity K1 K2 K3 K4 285 System Start-up & Settings Outdoor Unit Option Setting Defrost Interval Adjustment Defrost mode can start after 30 minutes of heat operation run time, and the suction temperature at the outdoor unit heat exchanger is less than 23 F, or there is a significant temperature difference between the heat exchanger suction gas and ambient. For installations with high humidity which creates too many defrost cycles, defrost interval can be changed to LOW1 or LOW2 (K5 K6) Heating capacity is reduced in this operation 60 MBtu HP model All HR models K1 K2 K3 K

144 System Start-up & Settings Energy Control Operation Option Setting Reduce energy consumption by adjusting the indoor set temperature based on indoor and outdoor ambient temperatures As the room temperature approaches set point temperature, the target evaporator temperature or target refrigerant pressure is changed 60 MBtu/h HP model All HR models K1 K2 K3 K4 Temperature Eco for cooling Current indoor temperature Set temperature +5.4 F Set temperature Target evaporation temperature (when the outdoor temperature is low) Target evaporation temperature (when the outdoor temperature is high) Temperature Pressure Eco for heating Set temperature Set temperature -3.6 F Current indoor temperature Target high pressure 287 System Start-up & Settings Refrigerant Check Operation Items Key Step Safety start Contents Number K2 Push time 4 Display Use refrigerant detect mode after the system has ran in cooling mode for a minimum of 30 minutes Refrigerant check can also be used with SNET Pro 2 software Feedback control Judgment of stability Judgment Overcharged Shortage Normal Overcharged Recover 5% of system refrigerant and restart refrigerant detection mode Shortage/Insufficient Add 5% of system refrigerant to system and restart refrigerant detect mode Insufficient degree of subcooling add 10% of system refrigerant volume and restart refrigerant detect mode

145 Outdoor Unit Option Settings Exercises 1. Review the K tactile buttons and DIP switches on the main PCB 2. Demonstrate the various Eco unit option settings 3. Demonstrate System Reset 4. Demonstrate Refrigerant Check operation 289 DVM S Eco Start-up Tool SNET Pro 2 145

146 Start-up Tool SNET Pro 2 Eco System Startup Tool SNET Pro 2 System Startup Basic Operating Data Compressor discharge temperature Condenser outlet temperature High and Low pressure Compressor current Indoor unit EEV (cool) Indoor unit EEV (heat) Startup report 291 Start-up Tool SNET Pro 2 Operation Data Discharge Temperature Compressor discharge temperature Discharge temperatures should be between 140º F - 221º F during normal operation. If over 221º F, check for low refrigerant and verify liquid service valve is open. Compressor will stop if discharge temperature reaches 248ºF. If below 140ºF for long periods, the system is most likely overcharged. Heating trial operation discharge temperature: (Discharge temperature - high pressure saturated temperature) 54º F. If this condition is not satisfied the system may be overcharged. Check refrigerant volume, outdoor EEV, outdoor liquid bypass valve, and EVI_EEV. All noted data is displayed with SNET Pro

147 Start-up Tool SNET Pro 2 Operation Data Condenser Out Temperature Condenser outlet temperature (CondOut Temp) / subcooler outlet temperature (Liquid Pipe Temp) CondOut range: 86ºF ~ 131ºF under standard conditions and normal operation. Low or high ambient temperatures can extend this range down or up. Cooling CondOut should be between 5ºF ~ 36ºF greater than outside ambient temperature. Heating CondOut: should be at least 2ºF lower than outside ambient temperature. (Suction temp - Suction saturated temp) = 0 ~ 12.6ºF 293 Start-up Tool SNET Pro 2 Operation Data High & Low Pressure High / Low pressure Low pressure range during cooling test operation: 85 ~ 128 PSI. When outdoor temperatures and indoor loads are high, this value may be higher. Low pressure range during heating test operation: 71 ~ 106 PSI. This is a basic reference as ambient temperatures will change this value. High pressure range during cooling test operation: 355 ~ 469 PSI. This value can increase with ambient temperatures (max. 512 PSI) High pressure range during heating test operation: 355 ~ 455 PSI. This value can decrease when outside ambient temperature is below 32ºF or indoor temperature is below 68ºF. IPM Temperatures Inverter PCB Temp (IPM1 Temp / IPM2 Temp) When IPM board temperatures 194ºF the system will modify operation to prevent overheating. No errors will occur until temperatures reach 212ºF. Capacity can decrease during protection without any visual indication of protection occurring if below 212ºF

148 Start-up Tool SNET Pro 2 Operation Data Indoor Unit EEV (Cool) Indoor Unit EEV (Cool mode) Under normal operation and conditions, EVAP_IN temperature should be between 45ºF - 57ºF for all indoor units. Under normal operation and conditions, EVAP_OUT temperature should be between 45ºF - 57ºF for all indoor units. (EVA OUT - EVA IN) should equal approximately 0 ~ 7 after sufficient system operation times. This value will vary initially based on outdoor conditions and indoor conditions. Indoor EEV steps will range between 0 ~ 2,000. Under normal operation and conditions the indoor unit EEV(s) should stay within 250 ~ 1400 steps. If more than 50% of indoor unit EEV's SH ((EVAP_OUT) - (EVAP_IN)) > 11ºF and EEV step of those units > 1400, the system maybe undercharged. If a small percentage of indoor unit EEV steps are > 1400 under standard operating and space conditions, verify the distance from the first Y-joint to each unit is within Samsung pipe limitations. 295 Start-up Tool SNET Pro 2 Operation Data Indoor Unit EEV (Heat) Indoor Unit EEV (Heat mode) Under normal operation and conditions, EVA_OUT temperature should be between 113ºF - 194ºF for all indoor units. Under normal operation and conditions, EVA_IN temperature should be between 91ºF - 122ºF for all indoor units. Under normal operation and conditions, diffuser temperatures should be 105 F or greater. EEV position will vary based on indoor and outdoor conditions. If only a small number of indoor unit EVA_IN and EVA_OUT temperatures are lower than normal under standard operating and space conditions, verify the distance from the first Y-joint to each unit is within Samsung pipe limitations. If all indoor unit EVA_IN temperatures are lower than 91.4ºF, outside ambient temperature is below 41ºF, and high pressure is below 356 PSI, the system maybe oversized or overcharged

149 Start-up Tool SNET Pro 2 Startup Report 1. Auto-report from SNET Pro 2 2. Recording file from the following operations: a. Auto-trial mode (clear UP mode) b. Cooling test mode (if temperatures allow) c. Heating test mode (if temperatures allow) 3. Commissioning checklist (available at 4. OPTIONAL photos of outdoor unit installation and other installation photos 297 DVM S Eco Indoor Unit Option Settings 149

150 Indoor Unit Option Settings Indoor Unit Option Code Setting 02xxxx 1xxxxx 2xxxxx 3xxxxx Samsung indoor units use a 24 segment code for indoor unit option programming Based on the indoor unit option settings, the 24 segment code may vary Installer option settings start with 02 Segments 1, 7, 13, and 19 are page numbers and are always 0, 1, 2, and Indoor Unit Option Settings Optional Indoor Unit Settings 02xxxx 1xxxxx 2xxxxx 3xxxxx Robot Cleaning Remote Temperature Sensor / reduce fan operation Central Control RPM Adjustment Samsung Condensate Pump Use Hot Water Electric Heat EEV Stop Step In Heating Mode Indoor Unit Display on Wired Controller External Contact Control Indoor Unit Operation Output SPI Use Buzzer / Chime Use Filter Reminder Setting Wireless Remote Address Heating Temperature Compensation EEV Use During Oil Return and Defrost Operation Motion Sensor Not Used Segments 1, 7, 13, and 19 are page numbers and are always 0, 1, 2, and 3 Each segment represents a different indoor option (excluding segments: 1, 2, 7, 13, 19, and 24) These codes are available in the installation manuals

151 Indoor Unit Option Settings Optional Indoor Unit Settings Below is an example of an option setting code for a ducted indoor unit with setting details Robot Cleaning Not Used Remote Temperature Sensor - Enabled Central Control - Enabled RPM Adjustment - Default Samsung Condensate Pump Use Enabled, 3 min. off delay Hot Water Not Used Electric Heat Not Used EEV Stop Step In Heating Mode Closed Indoor Unit Display on Wired Controller Default (Slave) External Contact Control Enabled (ON/OFF control Indoor Unit Operation Output Default (Thermo ON/OFF) SPI Use Default (not used) Buzzer / Chime Use Default (use) Filter Reminder Setting 2,000 hours Wireless Remote Address Default (1) Heating Temperature Compensation - Default EEV Use During Oil Return and Defrost Operation Reduced noise setting Motion Sensor Not Used Not Used 301 Indoor Unit Option Settings Indoor Unit Programming Options To program indoor unit option settings, the following can be used: SNET Pro 2 is the easiest and recommended method for programming option settings SNET Pro 2 service software Preferred Wired controllers Wireless controllers

152 Indoor Unit Option Settings Add-on Tab Indoor Unit Option Writer In the Add-on tab, click Indoor Option Writer to change indoor basic option settings, advanced option settings and factory option codes Select the indoor unit(s) to set the option code or settings Write the indoor unit option code 303 Indoor Unit Option Settings Indoor Unit Option Writer Write the indoor unit option code Example on following page The indoor option setting section allows quick change of general indoor unit settings and advanced option code settings from a computer instead of changing switches at every indoor unit. Using the install options tables from indoor unit installation manuals, enter the settings in the box after selection the indoor units that need adjustment (all 24 segments must be entered)

153 Indoor Unit Option Settings Indoor Unit Option Writing Example Example: Ducted unit with MRW-TA external temperature sensor, Samsung condensate pump installed, and 2000 hour filter reminder. Full settings code: Indoor Unit Option Settings Indoor Unit Option Writing Example Enter install option setting code into SNET Pro 2, select applicable indoor units, then press Write Option

154 Indoor Unit Option Settings Indoor Unit Option Writing Example Video Changing the indoor unit basic option setting with SNET Pro Indoor Unit Option Settings Indoor Unit Option Settings Wired Controller MWR-WE11(13)N wired controller menu 4, sub menu 3 is where indoor unit option settings can be reviewed/changed MWR-SH10N wired controller Menu 4, sub menu 5 is where indoor unit option settings can be reviewed/changed MWR-SH00N wired controller menu 2, sub menu 5 is where indoor unit option settings can be reviewed/changed MWR-WE11(13)N MWR-SH10N MWR-SH00N

155 Indoor Unit Option Settings Indoor Unit Option Settings MWR-WE11(13)N = INDOOR UNIT, ON OUTDOOR UNIT 00 IDU Main Address Press Set and Delete buttons at the same time for more than 3 seconds. [Main menu] will be displayed and then press, button to select no. 4. Press button then see the main address. Press, button to select which indoor unit to set Press button to select the number you will set. Press, button to select no. 3. Current Page(0~3). Installation option Option Press button to enter the option setting stage. When you enter the setting stage, the current setting value will be displayed like left picture. Press, button to select the desired option(24 digit) Press Set button to complete the option setting. 309 Indoor Unit Option Settings Indoor Unit Option Settings MWR-WE11(13)N As you scroll through each segment using the button, the pages will change Changes can be made to each segment to make the desired indoor unit changes Default indoor unit options displayed below

156 Indoor Unit Option Settings Indoor Unit Option Settings MWR-WE11(13)N Option changes made in the example below: Factory condensate pump (ducted unit) Indoor unit MASTER External control output: Thermo ON/OFF Chime off 2,000 hour filter reminder Indoor Unit Option Settings VIDEO Option changes made in example below: Factory condensate pump (ducted unit) Indoor unit MASTER External control output: Thermo ON/OFF Chime off 2,000 hour filter reminder Indoor Unit Option Settings Code Entered:

157 Indoor Unit Option Settings Indoor Unit Option Settings MWR-SH10N 1. Press and hold top RH corner for 3 seconds 2. Press + or and select no. 3 for function settings then press OK Refer to the MWR-SH10N user manual for the listing of all applicable Option Settings 3. Press + or to select Main Menu number then OK Press + or for the sub-menu number then press Mode Press + or to select the settings Press Fan to select page Press OK to save the settings 313 Indoor Unit Option Settings Option Setting Mode MWR-SH00N To enter the setting mode press and hold Mode & Set keys for 3 seconds, key: Change the setting value Press Timer key: Select the setting value (enter) Press Set key: Save the setting value Press Air Swing key: Exit to normal mode

158 Indoor Unit Option Settings Indoor Units Setting Mode MWR-SH00N 315 Indoor Unit Option Settings Indoor Units Option Setting Mode MR-EH00U Wireless Function Indoor unit option code setting (factory program) No of digits to set ( Logical [physical] ) 24 [20] Install option setting 1 24 [19] Install option setting 2 24 [19] Indoor unit address (MAIN/RMC) 24[8] Code structure (Logical) 01xxxx-1xxxxx-2xxxxx- 3xxxxx 02xxxx-1xxxxx-2xxxxx- 3xxxxx 05xxxx-1xxxxx-2xxxxx- 3xxxxx 0Axxxx-1xxxxx-2xxxxx- 3xxxxx Specific bit setting (option, address, ) 24[5] 0Dxxxx-1xxxxx-2xxxxx- 3xxxxx

159 Indoor Unit Option Settings Indoor Unit Option Code Setting Function No of digits to set ( Logical [physical] ) Code structure (Logical) Indoor unit option code setting (factory program) 24 [20] 01xxxx-1xxxxx-2xxxxx-3xxxxx Install option setting 1 24 [19] 02xxxx-1xxxxx-2xxxxx-3xxxxx Install option setting 2 24 [19] 05xxxx-1xxxxx-2xxxxx-3xxxxx Indoor unit address (MAIN/RMC) 24[8] 0Axxxx-1xxxxx-2xxxxx-3xxxxx Specific bit setting (option, address, ) 24[5] 0Dxxxx-1xxxxx-2xxxxx-3xxxxx 317 Indoor Unit Option Settings To change an option code, the same method of changing indoor unit option settings applies Enter the 24 segment code into the controller but remove the page numbers leaving 20 segments Example: Option code for 7,500 Btu/h Slim Duct AM007FNLDCH/AA, 0.16 ESP

160 Indoor Unit Option Settings Optional Indoor Unit Settings Install option Operation Digit Setting Details External room sensor Minimize fan operation Set to room sensor to Use when connecting MRW-TA external temperature sensor No use Do not use 0 DEFAULT HEAT AND COOL MODE Use internal sensor, normal fan operation during THERMO-OFF ¹ Remote sensor / minimize fan operation (segment 4) Use Do not use 1 HEAT AND COOL MODE - Use an external sensor, normal fan operation during cooling THERMO-OFF ¹ No use Use 2 HEAT MODE - Use internal sensor, minimize fan operation during heating THERMO-OFF ² Use Use 3 HEAT MODE - Use external sensor, minimize fan operation during heating THERMO-OFF ² No use Use 4 COOL MODE - Use internal sensor, minimize fan operation during cooling THERMO-OFF ² Use Use 5 COOL MODE - Use external sensor, minimize fan operation during cooling THERMO-OFF ² No use Use 6 HEAT AND COOL MODE - Use internal sensor, minimize fan operation during heating and cooling THERMO-OFF ² Use Use 7 HEAT AND COOL MODE - Use external sensor, minimize fan operation during heating and cooling THERMO-OFF ² Central control (segment 5) No use 0 Use (default) 1 Set to not use to remove from central control RPM UP (segment 6) No use (default) 0 DEFAULT standard fan operation High ceiling mode 1 For cassette units installed in ceilings over 12 high High ceiling kit 2 For 48,000 btu/h cassette units installed in ceilings up to 19 ¹ When the zone has satisfied, the fan will remain on to reduce stratification and to move air over the room temperature sensor in the return air cavity. ² Fan operation when the zone satisfies: - When the zone satisfies, the fan will stop. - If an external sensor is installed, the fan will remain off until room temperature drops below set temperature. - If no external sensor is installed, the indoor fan will turn on every 5 minutes for 20 seconds to sense room temperature. 319 Indoor Unit Option Settings Optional Indoor Unit Settings Install option Operation Digit Setting Details No use (default) 0 DEFAULT Drain pump (segment 8) Use (No delay) 1 Setting for duct units with Samsung condensate pump installed Use (3-minute off delay) 2 When unit is turned off, set to heat, or set to fan mode, the pump will run an additional 3 minutes. No use (default) 0 DEFAULT - Do not use Hot water (segment 9) EEV stop step In heating (segment 11) ¹ Indoor unit display on wired R/C (segment 12) Use 1 Use, fan operation is interlocked with auxiliary heat signal Use 3 Use, fan is OFF when auxiliary signal ON for cooling only indoor units (install MCM-C200 mode selector switch in the outdoor unit and set to cool mode for this option). Default (default) 0 Keeps EEV open slightly when unit has satisfied in heat mode Use 1 Slave 0 Low priority (default) Master 1 Closes EEV completely when unit has satisfied in heat mode. If the room is still above set temp, EEV will open momentarily every hour if unit is in a Thermo-OFF state to prevent refrigerant migration. Will use unit s temperature on wired controller s that are sensing temperature at the indoor unit when there is more than one unit connected to a wired controller ¹ Only adjust if there are issues with overheating of a space External heat control will be covered in a later section

161 Indoor Unit Option Settings Optional Indoor Unit Settings External Contact Control Segment 14 of the indoor unit option settings is normally used to turn a unit ON/OFF based on a simple dry-contact input. Indoor units with software version 14/06/13 or newer can be configured to use input from MIM-B14 to either turn the unit ON/OFF or change operation settings for unoccupied room control Below are settings for standard unit control using MIM-B14 (applies to all DVM S indoor units and software versions). Install option External control when using MIM-B14 or CN83 connection (segment 14) Operation Digit setting No use 0 Default ON/OFF control OFF-only control Window ON/OFF Standard External Contact Control Settings (Segment 14) Description 1 Contact closed: unit ON, controller enabled. Contact open: Unit OFF, controller enabled. 2 3 Contact closed: unit STANDBY, controller enabled. Contact open: Unit OFF, controller disabled (ideal for condensate float switch use) Contact closed: unit STANDBY or ON (previous operation), controller enabled. Contact open: Unit OFF, controller disabled. Unoccupied Room Control can be enabled and adjusted with SNET Pro 2 (1.2.0 or later) or DMS2.5 (with or without LON or BACnet) Unoccupied Room Control details on following page. 321 Indoor Unit Option Settings Optional Indoor Unit Settings External Contact Control Unoccupied Room Control When Unoccupied Room Control is enabled, the settings below apply. External Contact Control Unoccupied Room Control (Segment 14) Option / Setting Dry contact state Indoor Remote controller usage ¹ Central controller usage Close Turn ON Enable Enable Open Operate by unoccupied setting Enable Enable Close OFF, able to use remote controller Enable Enable Open Operate by unoccupied setting Disable ² Disable ² Close Return to operation mode before ON Enable Enable Open Operate by unoccupied setting Disable ² Disable ² ¹ Remote control includes wired controllers, wireless controllers, and ON/OFF buttons on high-wall, under-ceiling units, and wireless signal receiver ON/OFF button for concealed duct units. ² No central control is possible for an indoor unit when in Unoccupied Mode. Schedule control is interrupted until the MIM-B14 input is closed

162 Indoor Unit Option Settings Optional Indoor Unit Settings Install option Indoor unit operation output when using MIM-B14 (segment 15) SPI (segment 16) Buzzer (segment 17) Filter time (segment 18) Wireless remote control address (segment 20) Operation THERMO- ON/OFF Operation ON/OFF Digit setting Description 0 DEFAULT - Output terminalsopen/close based on standard THERMO-ON/OFF settings (1 C) 1 Output terminals open/close based on indoor unit power ON/OFF Use ¹ 2 Use, fan operation is interlocked with auxiliary heat signal Use ¹ 3 No use 0 DEFAULT not installed Use, fan is OFF when auxiliary signal ON for cooling only indoor units (install MCM-C200 mode selector switch in the outdoor unit and set to cool mode for this option). Use 1 USE - Air cleaning option for future models Enabled 0 Chime/buzzer enabled (default) Disable 1 Mute buzzer/chime 1,000 hours 0 2,000 hours 6 Indoor unit 1 (default) 0 or 1 Indoor unit 2 2 Indoor unit 3 3 Indoor unit 4 4 Filter reminder indicator on font of unit, wired controller, and central controllers ON after 1,000 hours of fan operation Filter reminder indicator on font of unit, wired controller, and central controllers ON after 2,000 hours of fan operation (any setting other than 6 ) Wireless controller address to prevent overlapping of wireless controller signal when units are near each other MR-D00U will allow indoor unit wireless controller specification 323 Indoor Unit Option Settings Optional Indoor Unit Settings Install option Operation Digit setting Description Heating temperature Compensation (segment 21) EEV opening of IDU stopped during oil return or defrost (segment 22) Motion detect sensor - for use with optional mini 4-way cassette motion sensor (segment 23)* default 0 4- Way and Mini 4-Way cassette units: 5 C, all other units: 2 C 2 C 1 Compensation value 5 C 2 Compensation value Default 0 Standard Close 1 Close EEV during oil return and defrost to decrease noise after complaint Do not use (default) 0 Standard mode - Auto set off 30 min. Standard mode - Auto set off 60 min. Standard mode - Auto set off 120 min. Standard mode - Auto set off 180 min. Premium mode - Auto set 30 min. Premium mode - Auto set off 60 min. Premium mode - Auto set off 120 min. Premium mode - Auto set off 180 min. 1 Soft OFF 20 minutes, HARD OFF after 30 minutes without motion 2 Soft OFF 40 minutes, HARD OFF after 60 minutes without motion 3 Soft OFF 80 minutes, HARD OFF after 120 minutes without motion 4 Soft OFF 120 minutes, HARD OFF after 180 minutes without motion 5 Soft OFF 20 minutes, HARD OFF after 30 minutes without motion, comfort logics enabled 6 Soft OFF 40 minutes, HARD OFF after 60 minutes without motion, comfort logics enabled 7 Soft OFF 80 minutes, HARD OFF after 120 minutes without motion, comfort logics enabled 8 Soft OFF 120 minutes, HARD OFF after 180 minutes without motion, comfort logics enabled

163 Indoor Unit Option Settings MCR-SMA Motion Sensor Mini 4-Way Cassette Mode Standard Premium Soft Off (minutes) Hard Off (minutes) Function Description SOFT OFF: turns off indoor unit but can restart with motion detection before HARD OFF HARD OFF: Turns unit off but will not turn back on after motion is sensed. Unit will need to be power ON with a unit controller SOFT OFF and HARD OFF are the same as Standard Mode Samsung comfort functions are activated. Samsung Comfort Logics (activated in Premium mode) Comfort Flow: MDS prevents cassette from blowing directly on occupants by changing air flow direction Comfort Temperature: When the temperature difference between the upper and lower parts of the room is large, the supply air louvers will lower to direct air downward Comfort Saving: When no motion is detected, MDS will adjust set temperature to reduce energy consumption (maximum +3.6º F in cooling, and -3.6º F in heating) 325 DVM S Eco External Controls 163

164 External Controls Operation Mode Selector Switch MCM-C200 Manual system mode select Heat Pump Systems Cool Heat Auto setting options Connects to outdoor unit and installs in the building Allows manual operation mode change preventing mixed operation Max. 328ft from control to outdoor unit Control wire:16/2 AWG stranded with shield Example: Mode Selection Switch set for Cool Heat & Auto modes are locked out Cool Cool Heat Cool 327 External Controls External Contact Controller MIM-B14 Direct indoor unit control by external contact signal Function examples: Hotel key card switch, door/window switch, occupancy sensor, On/Off ventilation control with indoor unit thermo-on/ thermo-off Indoor unit operation/error state output through relay contacts Emergency control with simple contact input Compatible with all DVM indoor fan coil units On/Off On/Off Error On/Off Key-Tag Window Open Sensor Malfunction Alarm External Device Control

165 External Controls External Contact Controller MIM-B14 To control the indoor unit providing synchronized control with other devices through the external contact input/output signal Indoor unit option setting must be set to enable external control operation External contact input load: 5v, 5mA Output terminals are open/close contacts 0 volts Maximum load rating on the Operation & Error terminals: 250vac, 3A Connectors provided External input ON/OFF Short: Indoor unit ON Open: indoor unit OFF CN81 CN83 Ducted unit PCB Contact Output (Operation state) Close: Indoor unit ON Open: Indoor unit OFF Contact Output (Error state) Close: No Error Open: Error 329 External Controls External Contact Controller MIM-B14 Direct indoor unit On & Off control by external contact signal 1) On-Off Control 2) Off-Only Control Card-key removed(contact open) IDU off Card-key removed(contact open) IDU off & Controller disable Card-key inserted(contact close) IDU on Card-key inserted(contact close) IDU stand-by & Controller enable

166 External Controls External Contact Controller MIM-B14 Window switch synchronized indoor unit control 1) On-Off Control Window opened(contact open) IDU off & Controller disable Window closed(contact close) IDU returns to the previous mode (running or stand-by mode) & Controller enable 331 External Controls External Contact Controller MIM-B14 Indoor unit operation/error state output through relay contacts Operation status Error status Form A Contact : Normally Open No error Contact closed Lamp on Form B Contact : Normally Closed Indoor on Relay on Contact closed Electric louver open Error Relay on Contact open Lamp off

167 External Controls External Contact Controller MIM-B14 MIM-B14 connection to Neo Forte wallmount units Cable is provided in the Neo Forte indoor unit models External On/Off is available without the MIM-B14 controller Enable the MIM-B14 When connecting directly to Neo Forte, only one unit can be connected to a single contact MIM-B14 Controller 333 External Controls MIM-B14 Controller operation output can be modified External Contact Controller MIM-B14 Operation On/Off Output based on power status of connected indoor unit (On or Off including fan) Thermo On/Off Output based on connected indoor unit s current operation Heating/Cooling trying to condition the space Satisfied set point and in a Thermo-Off state Fan mode contact open External Heat control

168 External Controls Operation Output Cooling External Contact Controller MIM-B14 Temperature Room temperature Set temperature + 1 F Set temperature Set temperature - 1 F time Remote control Cooling On Operation output = THERMO ON/OFF Operation output = Operation ON/OFF Thermal ON Thermal OFF Thermal ON 335 External Controls Operation Output Heating External Contact Controller MIM-B14 Temperature Room temperature Set temperature + C + 1 F Set temperature Set temperature + C - 1 F C : Heating compensation time Remote control Heating On Operation output = THERMO ON/OFF Operation output = Operation ON/OFF Thermal ON Thermal OFF Thermal ON

169 External Controls External Contact Controller MIM-B14 MIM-B14 Controller Thermo-On/Off Operation Output terminals are dry contacts Open/Close with 0 volts Maximum 250vac, 3A can be applied to the operation and error output terminals 250VAC, 3A Relay 250VAC, 3A Relay Operation state Close: Indoor unit ON Open: Indoor unit OFF Error state Close: No Error Open: Error Indoor unit operation Cooling (Thermo ON) Cooling (Thermo OFF) Heating (Thermo ON) Heating (Thermo OFF) FAN Operation state Close (20 second delay) Open (20 second delay) Close (120 second delay) Open (120 second delay) Open 337 External Controls External Contact Controller MIM-B14 MIM-B14 controller to control fresh air intake damper When the indoor unit is configured for Operation On/Off, the Operation Output terminal will close when the unit is on When the indoor unit is configured for Thermo-On/Off, the Operation Output terminal will open and close based on set temperature and room temperature and will stay open in FAN mode The Error Output terminal is closed when no errors are present The Error Output terminal will open when there is an error occurrence closing the damper MIM-B14 installed in ducted unit Normally Closed Damper Powered Open Ducted IDU Error Operation Fresh Air Control signal voltage Power Supply

170 External Controls WiFi Adapter MIM-H03UN E F B AP Button Reset Power LED WiFi Connect LED WiFi Configure LED D C A A. Power & Comm. Terminals B. Tracking/Initializing Button C. SD Card Slot D. LED E. Network PCB F. Interface Module PCB. F1 F2 NOTE: When the distance from the WiFi Adapter to the indoor unit is more than 30 ft. the comm. and power wires should be installed separately to avoid interference. 339 External Controls WiFi Adapter MIM-H03UN MIM-H03UN WiFi Adapter WiFi Kit allows control and scheduling of the Eco system remotely through Android and Apple devices Configuration requires the Samsung Smart Things app. One WiFi kit can be registered to a maximum of 5 users WiFi

171 External Controls WiFi Adapter MIM-H03UN 4-wire connection to an indoor unit F1 F2 communications V1 V2 12vdc power from indoor unit WiFi adapter should be installed as close to the wireless router as possible For the indoor units with no V1 V2 terminals use the external control wires Org to V1 & Blk to V2 4 3/4 1 1/8 4 7/ External Controls WiFi Adapter MIM-H03UN Refer to the WiFi Kit Installation Manual for step by step setup and configuration procedures

172 External Controls 24vac Thermostat Adapter TADPT2 Adapter can control one or two DVMS indoor units (two units controlled as a group) Can be configured to operate indoor unit as primary or secondary heat source Can be configured for cooling only with heat from external source Emergency Heat output External contact input to disable unit N.C. operation Supports 1 or 2 stages of Heat and Cool Stage 1 & 2 Heat and Cool temperature setpoints Configurable fan operations Requires field supplied 24vac class 2 transformer AMO***JNZD Multi-position AHU s have an internal 24vac transformer as standard 343 External Controls 24vac Thermostat Adapter TADPT2 Device Configuration Thermostat adapter initial settings are configured using the 3 banks of DIP switches and 4 rotary switches RSW 1 RSW 2 RSW 3 RSW 4 Controlling 1 indoor unit RSW1 & RSW2: Indoor Unit Address RSW3 & RSW4: Same Indoor Unit Address Controlling 2 indoor units RSW 1 & RSW 2: Add 01 RSW3 & RSW4: Add 02 Samsung Protocol Setting: DIP switch Bank 3, switch 4: ON for DVMS Eco (AM0********)

173 External Controls Thermostat Adapter TADPT2 Basic Wiring Examples Refer to the TADPT2 Installation Manual for step by step setup and configuration procedures 345 DVM S Eco External Heat Control 173

174 External Heat Control External Heat Concept When a system is operating in heat mode and an indoor unit cannot reach or maintain desired set temperature, the indoor unit can activate supplemental auxiliary heat (EX: -12 F outside temperature). Although Samsung DVM S systems are designed to heat effectively at low ambient temperatures, some projects might require an additional heat source. This is not designed to be used as emergency heat. If the outdoor unit stops due to low ambient conditions but not an error code, the indoor unit will still operate its fan and auxiliary heat output connection (outdoor temperature must be -22 F or greater). If outside conditions are low enough to cause an error code, external heater control is not guaranteed (EX: low suction error code caused by low outside temperatures). When indoor units are configured to use the auxiliary heat control output, the outdoor unit compressor will still operate as this control option is simply supplemental heat control. 347 External Heat Control External Heat Concept All Multi-position air handlers models AM0**JNZDCH will have this firmware or newer and will have an electric heat accessory option. When using accessory VHK-*** electric heat kits, the indoor unit is configured using the HOT COIL output from the PCB. The heat kits will plug into the vertical air handler electric heat plug and will not require additional relays, etc. See details in the electric heat kit installation instructions. ATTENTION Samsung cannot guarantee indoor unit fan operation in the event of an error or fan issue. Samsung cannot guarantee sufficient airflow for heaters in the supply duct outlet as duct design, filter selection, and filter status will directly effect this. When controlling an auxiliary heat source with a Samsung indoor unit, make sure that all required thermal protection devices are present per national, local, and ASHRAE standards. External heat control output is not design to control electric heat options that were not provided by Quietside, LLC or Samsung. Do not use Samsung indoor unit auxiliary heat control output to enable/disable electric heat in the supply duct

175 External Heat Control Applicable Indoor Unit Firmware Versions Indoor unit type Indoor Model Number Version / date code Neo Forte (wall mount) Cassette Ducted Under Ceiling / Low-Wall Vertical Air Handler / AHU Kit AM0**FNTDCH/AA AM0**HNQDCH/AA AM0**FN4DCH/AA AM0**FN1DCH/AA AM0**FNNDCH/AA AM0**FNLDCH/AA AM0**FNMDCH/AA AM0**FNHDCH/AA AM0**FNCDCH/AA AM0**GNVQCH MXD-K***AN DB A, date code (14/06/13) and newer DB A, date code (14/06/13) and newer DB A, date code (14/06/13) and newer Use SNET Pro 2 Service Software to view the installed firmware version of an indoor unit. To upgrade an indoor unit purchased with a previous firmware version, use SNET Pro 2 Service software. Firmware files are available through Samsung DVM technical support. 349 External Heat Control Connection Depending on the model of unit that is installed, the indoor unit can connect to and control an auxiliary heat source one of two ways: 1. MIM-B14 external contact control (recommended method) 2. HOT WATER coil connection (ducted models only) When using MIM-B14, its operation output terminals will be used to control an external heat source. This connection provides a 0 volt switch to control the auxiliary heat source (maximum 250V, 3A at this terminal). Using MIM-B14 is the preferred method of external heat control. The HOT WATER terminal in a duct unit supplies a high voltage control signal. One terminal supplies 120 VAC constantly and the other terminal supplies an additional 120 VAC (same as supply voltage) to activate the auxiliary heat source. A fieldprovided, 230 VAC relay must be used. Never power a device from the HOT WATER output, only use to control external devices

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