VRV LIFE Reference Guide

Transcription

1 VRV LIFE Reference Guide

2 About Daikin: Daikin Industries, Ltd. (DIL) is a global Fortune 1000 company which celebrated its 90th anniversary in May The company is recognized as one of the largest HVAC (Heating, Ventilation, Air Conditioning) manufacturers in the world. DIL is primarily engaged in developing indoor comfort products and refrigeration systems for residential, commercial and industrial applications. Its consistent success is derived, in part, from a focus on innovative, energy-efficient and premium quality indoor climate and comfort management solutions.

3 TABLE OF CONTENTS INTRODUCTION Features and Benefits of VRV...6 Inverter Driven Compressors...8 First VRV with Dual Fuel Capabilities...9 Capacity Range & Operating Limits...10 Nomenclature...16 SYSTEM SELECTION Indoor Unit Range...20 Indoor Unit Consideration...22 Controls...30 DESIGN AND APPLICATIONS Residential Single Story...34 Residential Two Story...38 Installation Considerations...40 Heat Pump Changeover...47 Auxiliary Heat...49 Refrigerant Piping Design...52 Power Wiring...55 GENERAL EQUIPMENT SPECIFICATIONS ODU (Outdoor Unit) and IDU (Indoor Unit) Capacities...58 Pipe Sizes...61 Electrical...62 Tips & Consideration...66 Further Documents & Data...67

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5 Introduction

6 Features and Benefits VRV Heat Pumps are a highly efficient method of conditioning a space. Daikin invented the technology in Refrigerant matched precisely with the load, rather than water or air, is used to transfer heat within the room. Simplified Installation: A simple modular design allows for quick and easy installation often within a day s work. Scalable Design: The modular design of VRV systems allows for the flexibility of simplified future expansion. Quiet Operation: Standard low operating sound levels for undisturbed home comfort. Year Round Comfort: Wide range of operation with heat pump heating down to -4º F, connection of gas furnace for colder climates, and cooling up to 122º F. Individual Comfort: Personal comfort control in each room or zone. Total Zone Control: Cool or heat only the rooms needing indoor comfort. Daikin residential (RXSQ) VRV LIFE systems are AHRI certified in accordance with Standard 210/240 for unitary air-conditioning and air source heat pump equipment. 73º 69º OFF 73º 6

7 Inverter Driven Compressors allow for energy savings using only the system capacity needed to heat or cool the space. 1 st First VRF with Gas Heat Option INTRODUCTION Low Pressure Loss Bellmouth with Aero Spiral Fans Continuous Gas Heating During Defrost and Oil Return Simultaneous Gas and Heat Pump Heating Compact Space Saving Design Reuse Existing Refrigerant Piping Configurable & Auto Changeover to Gas Heat Seamless Integration with Daikin Controls 7

8 Inverter Driven Compressors The inverter driven compressor is the heart of Daikin s VRV system to help maximize energy savings. Daikin s inverter technology is responsible for delivering intelligent comfort, at a variable capacity, with efficiency, based on demand. Variable Capacity Output Daikin s inverter driven compressors will only provide the required amount of refrigerant needed to meet the capacity demand. Daikin inverter technology helps systems run at an energy-conserving level, despite the climate conditions, by making slight adjustments to the compressor s speed. Daikin inverter systems will reach the desired temperature faster and maintain a more constant temperature compared to traditional Desired speed ON/OFF systems. It will not frequently start and stop the old fashioned way just as a car is more efficient and comfortable traveling on a highway than it is in stop-and-go city traffic. speed Time Less Energy Consumption With an inverter driven compressor, average energy savings of 30% are easily obtainable, when compared to traditional DX systems. 30% Efficient Part Load Performance Daikin s inverter driven VRV system operates most efficiently in part load conditions. A VRV LIFE system will operate most of the time at part load conditions. 75% (A typical VRV system will run 3/4 of its operating hours at less than 70% of full capacity.) 8

9 First VRV with Dual Fuel Capabilities Daikin has continued on the path of continuous innovation with the VRV LIFE, optimized for residential applications. Daikin s VRV LIFE includes several new beneficial features. Not least, the first VRV heat pump system that can pair with a gas furnace. World s 1 st VRV System is Developed st VRV Single Phase VRV 2003 Over 45+ million inverters produced globally Since 1925 Industry Leading Product Development And Innovation First VRV for Residential Applications Over 11+ million furnaces produced 1986 Daikin Group of Company s 1 st Gas Furnace 9

10 Capacity Range & Operating Limits Outdoor Unit (ODU) Range Capacity MBH (Tons) 24 (2) Power Supply Max # IDU* 36 (3) 6 48 (4) 8 1/ /60Hz 60 (5) 9 4 Dimensions (HxWxD) 39 x 37 x 12-5/ /16 x 35 7/16 x 12-5/8 ODU Appearance *Total capacity index of connectable indoor units is % Heat Pump Operation Ranges Heating Cooling Outdoor Temperature ºFDB Range for Warm Up Opearation Range for Operation Indoor Temperature (ºFWB) Warm Up/Pull Down Operation: prolonged periods of not conditioning the space, or setback periods, may result in entering air conditions (EAC) at the indoor unit (IDU) in these warm up and pull down ranges. Actual continuous operation EAC s should fall within the range for operation temperatures. Outdoor Temperature ºFDB Range for Operation Range for Pull Down Operation Indoor Temperature (ºFWB)

11 Refrigerant Piping Limitations B C A D Receiver Liquid Line Max (ft) RXSQ24-36 RXSQ48-60 A Vertical Separation ODU & IDU (above & below) B Vertical Separation IDU & IDU C+D Actual Piping length C+D Equivalent Piping Length C Actual Piping Length After 1 st RefNet Total Piping Length D Permissible to reuse an existing main line set only. See following refrigerant piping section for requirements. Equivalent Piping length: includes total actual pipe length plus the equivalent straight piping length associated with each fitting or bend. Note: lengths are based on liquid line length not gas and liquid 11

12 Capacity Range & Operating Limits Refrigerant Piping Connections Standard pipe sizes are recommended. However, there are applications where larger sized refrigerant lines exist due to previously installed HVAC systems. Replacement of existing refrigerant lines can pose challenges, VRV LIFE systems can be configured to re-use these refrigerant lines. See the table below for allowable connection sizes. See ODU installation manual for field settings when using non-standard sizes. Tons Liquid Gas 3 / 8 5 / 8 ¾ 7 / / 8 To Other VRV IDU (s) Standard Size, Available, Used for rating of CXTQ pair connection Main Liquid Line Refrigerant Piping Insulation It is recommended that both the liquid and gas refrigerant lines are insulated. Liquid line insulation is imperative in the following situations: If it is intended to operate the system at reverse ambient temperatures (ex. Cooling: outdoor temp<indoor temp). If the ODU(s) is above the IDU(s) In applications with existing liquid main line sets, insulation may be excluded provided the conditions above do not apply. However accessible portions and portions located outside must be insulated. A field setting is required based on gas pipe size and liquid line insulation (See installation manual). Factory Default Setting: Gas Pipe = >standard Liquid pipe = insulated 12

13 Communication Wiring Communication wiring should have the following characteristics. 18 AWG (16 AWG is permitted if necessary) 2 Strand No Polarity No Sheilding A F H E P1-P2 G B Communication Wiring Max Length (ft) RXSQ Linear Length 984 A to B Total Length 1968 G to H Total Length 1640 F to E (factory supplied cable) Total Length 4 VRV Communication Language = DIII-Net (16 VDC, 2 wire daisy chain) Note: if shielded cable is used, one end of each connect should remain unearthed 13

14 Capacity Range & Operating Limits Allowable Configurations VRV Indoor Units and Gas Furnace Receiver VRV Indoor Units and Gas Furnace (Draw Through) A liquid receiver tank (BHL-02A) is required when a G/F & A-coil are combined with traditional VRV IDU(s) (except draw through applications) Only one G/F can be combined with traditional VRV IDU(s) When the system is in cooling mode, simultaneous G/F heating is not available Draw Through Installation Multiple Gas Furnaces Combining traditional VRV IDU(s) with multiple gas furnaces is not allowed Simultaneous G/F and heat pump heating operation is not available A maximum of two gas furnaces per system is allowed VRV Indoor Units The vast majority of traditional VRV IDU(s) are available for use on the RSXQ 14

15 Connection Ratio Both indoor and outdoor units have a capacity index number and the connection ratio is defined as the ratio of these two numbers. Total Sum of IDU Index Numbers ODU Index Numbers = CONNECTION RATIO Example: Both indoor and outdoor units have a capacity index number and the connection ratio is defined as the ratio of these two numbers. 2 x FXMQ36PB connected to 1 RXSQ60T = 72 / 57 = 1.26 Therefore the Connection ratio = 126% IDU Size IDU Capacity Index ODU Size MBH (Ton) ODU CI Minimum Required IDU CI (50% CR) Maximum Allowed IDU CI (130% CR) 24 (2) (3) (4) (5) The maximum connection ratio on VRV LIFE systems (RXSQ) is 130%. 15

16 Nomenclature VRV Indoor Units FX M Q 24 P VJ U Indoor Unit Category FX: VRV system indoor unit Indoor Unit Type M: Concealed ceiling ducted D: Slim concealed ceiling ducted A: Flat panel wall mount H: Ceiling suspended L: Floor mounted N: Concealed floor mounted T: Multi-position AHU Z: 4-way ceiling mounted cassette F: Round-flow ceiling mounted cassette U: Under ceiling mounted cassette E: Single-flow ceiling mounted cassette Standard Compatibility Symbol U: United States of America Power Supply Symbol VJ: 1 phase, 208/230V, 60 Hz Series/Design Change Major design change Nominal Cooling Capacity Example: Btu/h Tons 24=24,000 (2) 60=60,000 (5) Refrigerant Type Q: R-410A Cased Upflow/Downflow A-Coil CX T Q 24 TZ SBL U Indoor Unit Category FX: VRV Cased Coil Standard Compatibility Symbol U: United States of America Indoor Unit Type Power Supply Symbol T: Multi-position AHU SBL: 1 phase, 120V, 60 Hz Refrigerant Type Series/Design Change Q: R-410A Revision Series Nominal Cooling Capacity Example: Btu/h Tons 24=24,000 (2) 60=60,000 (5) 16

17 Nomenclature (cont.) Brand Daikin Configuration Outdoor Units R X S Q 24 TA VJ U Unit Category R: Outdoor Unit Standard Unit Type Compatibility Symbol X: Heat Pump U: United States of America Product Type Power Supply Symbol S: Single Family VJ: 1 phase, 208/230V, 60 Hz Refrigerant Type Series/Design Change Q: R-410A Revision Series Nominal Cooling Capacity Example: Btu/h Tons 24=24,000 (2) 60=60,000 (5) Gas Furnace D M 96 V C B N A A M: Upflow/Horizontal D: Downflow/Horizontal AFUE % AFUE 96 96% AFUE 80-82% AFUE Gas Valve M: Modulating H: Convertible Two-Stage V: Two Stage S: Single Stage Motor C: Variable Speed ECM V: Two Stage S - Single Stage MBTU/h ,000 BTU/h ,000 BTU/h ,000 BTU/h ,000 BTU/h ,000 BTU/h Minor Revisions A: Initial Release B: 1 s t Release Major Revisions A: Initial Release B: 1 s t Release NOx N: Natural Gas A: Low Nox Cabinet Width A: 14" C: 21" B: 17½" D: 24½" Maximum CFM CFM CFM CFM CFM 17

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19 System Selection

20 Indoor Unit Range Sizes & Accessories Available of all IDU s Must Be Paired TYPE MODEL BUILT-IN / OPTION CXTQ A-COIL DM/DC GAS FURNACES MULTI POSITION AHU FXTQ ROUNDFLOW (3 x 3 ) CASSETTE FXFQ FXZQ-T VISTA (2 X 2 ) CASSETTE FXEQ 1 WAY FLOW CASSETTE 36 =IDU size available WAY FLOW UNDER CEILING FXUQ =OA Connection =OA Kit Option FXHQ 1 WAY FLOW UNDER CEILING FXAQ WALL MOUNTED =Pump Included =Pump Options FLOOR MOUNTED FXLQ = Filter Included = Filter Options

21 TYPE MODEL BUILT-IN / ADD ON FXNQ CONCEALED FLOOR MOUNTED LOW STATIC SLIM CEILING DUCTED FXDQ MEDIUM STATIC CEILING DUCTED FXSQ HIGH STATIC CEILING DUCTED FXMQ-P SYSTEM SELECTION Accessories The best location to find a list of all available accessories (for every unit type & size) is via WEBXpress: Click on the options link located at the bottom of the IDU properties window, to reveal the following page: Example Options Page 21

22 Indoor Unit Considerations Gas Furnace & VRV A-Coil Daikin compatible gas furnace paired with a VRV A-Coil (up-flow & down-flow) The A-Coil (CXTQ) is powered by the gas furnace via a factory supplied 24V transformer The gas furnace is controlled by the CXTQ over ClimateTalk (4, 24 VDC, 4-wire factory supplied communication cable) Critical Gas Furnace error codes are transmitted & displayed on controller (Minor errors indicated as error code AA) The A-coil may be installed in a draw through configuration (suction side of the furnace). A P-trap on the condensate line is necessary in draw through applications to prevent air from being drawn back through the line Up-Flow Down-Flow Drain Connection A-Coil 2" Min Positive Liquid Seal Required at Trap 3" Min 22

23 CXTQ Insulation kit To prevent drain pan sweating, a coil insulation kit (DPICX) is recommended in applications where operating conditions may exceed 80% RH. Drain Pan Insulation Kit A-Coil CXTQ24 CXTQ36 CXTQ48 CXTQ60 Kit # DPICX-B DPICX-C DPICX-D CXTQ Pressure Drop Data 0.50 CXTQ_TA Presssure Drop 0.45 Pressure Drop (in W.C.) CXTQ Wet CXTQ24 Dry CXTQ36 Wet CXTQ36 Dry CXTQ48 Wet CXTQ48 Dry CXTQ60 Wet CXTQ60 Dry Air Flow (SCFM) 23

24 Indoor Unit Considerations Multi-Position Air Handling Unit (FXTQ) Integrated auxiliary electric heat (3kW-25 kw) Optional factory provided disconnect available Standard auxiliary heat logic Up-Flow No field modifications are mandatory To maintain maximum efficiency remove the horizontal drip shield, side drain pan, and drain pan extension Down-Flow Additional downflow kit (DFK) required Rotate cabinet/blower assembly 180º and remove and flip A-coil Drain pan extension must be removed, horizontal drip shield and side drain pan may also Removable Drain Pains / Drip Shield Horizontal Left Factory standard configuration No field modifications necessary Horizontal-Right Rotate cabinet/blower assembly 180º and remove and flip A-coil Drain pan extension must be removed 24

25 CONCEALED UNITS offer the opportunity to hide away the equipment when there is no ceiling void but the homeowner does not wish to use exposed units or else has similar equipment existing and sees the benefit of retro fitting with minimum disruption and expense. Considerations: Is there an existing centralized forced air system? Does the homeowner prefer not to see the units? Is heating the primary requirement? Concealed Model Size Height Max ESP DC_/DM_ DM80VC 33 3 /8" All others 34½" 0.5" CXTQ FXTQ 24 ~ /16" 48 ~ /16" 09 ~ 36 45" 42 ~ /3 54 ~ 60 58" NA 0.9" FXNQ 54 ~ 60 24" Minimal Application Examples DC_/DM_ CXTQ FXTQ FXNQ Furnace Retrofit Closet Space Attic Perimeter Heating - Hallways 25

26 Indoor Unit Considerations Multi-Position Air Handling Unit (FXTQ) CASSETTE UNITS provide the best combination of economic installation with a good level of flexible project design Considerations: Is there a ceiling void space? What is the height of the void space? How far are the ceiling joists spaced? Concealed Model Size Height Air Throw FXZQ All /16" 12 ft (per outlet) FXFQ FXUQ 07 ~ /16" 36 ~ /16" 18 ~ " 30 ~ " 14 ft (per outlet) 14 ft (per outlet) 16 ft (per outlet) FXEQ 07 ~ /16" 15 ft *less than 10 inches in void space Application Examples FXZQ FXFQ FXUQ FXEQ Small rooms 2' joist spacing Large open plan areas shallow void space Restricted or no void spaces Bedrooms, hallways 26

27 DUCTED units offer the ultimate in flexibility of design, air distribution and integration of ventilation Considerations: Is there a ceiling void space? What is the height of the void space? What level of ESP is likely to be required? What level of control is required? Ducted Model Size Height Standard Max ESP FXDQ FXSQ FXMQ-P 07 ~ " 0.12" 11 7 /8" 07 ~ " 0.17" 05 ~ " 0.60" 9 11 /16" 15 ~ " 0.60" 07 ~ " 0.40" 36 ~ " 0.80" /16" 07 ~ " 0.56" Application Examples FXMQ-P FXDQ FXSQ Most applications multiple room zoning Bulkheads, small rooms Bulkheads Hotels Assisted Living 27

28 Indoor Unit Considerations Multi-Position Air Handling Unit (FXTQ) EXPOSED units often offer the home owner the most economical installed cost solution on a VRV LIFE system. These types of units are ideal for applications that do not have a ceiling void available or the attic does not allow for a viable duct run. Exposed units are common in historic homes or applications where minimal reconstructive work is desired. Considerations: How big is the space? Where can the unit be located? Is piping/condensate run clear? Is the home owner accepting of exposed units? Ducted Model Size Air Throw FXHQ All 20 FT. FXAQ All 13 FT. FXLQ All 7 FT. Application Examples FXHQ FXAQ FXLQ Restricted void spaces Bedrooms, garage, small rooms Perimeter heating 28

29 Indoor Unit Considerations Gas Furnace & A-Coil Compatibility Matrix Gas Furnace CXTQ Type Series Model CXTQ24TA CXTQ36TA CXTQ48TA CXTQ60TA DM80VC0604BNA DM80VC (2-stage 80% AFUE) DM80VC0803CNA DM80VC0805CNA DM80VC0805DNA DM80VC1005CNA DM96VC0403BNA Upflow Furnace DM96VC (2-stage 96% AFUE) DM96VC0603BNA DM96VC0803BNA DM96VC0804CNA DM96VC1005CNA DM96VC1205DNA DM97MC (Modulating 97% AFUE) DM97MC0603BNA DM97MC0803BNA DM97MC0804CNA DM97MC1005CNA DM97MC1205DNA DC80VC (2-stage 80% AFUE) DC80VC0805CXA DC80VC1005CXA DC96VC0403BNA Downflow Furnace DC96VC (2-stage 96% AFUE) DC97MC (Modulating 97% AFUE) DC96VC0603BNA DC96VC0804CNA DC96VC1005CNA DC96VC1205DNA DC97MC0603BNA DC97MC0803BNA DC97MC0804CNA DC97MC1005CNA 29

30 Controls BRC1E73 Navigation Controller The navigation controller provides advanced comfort with as little or as much control as your home desires. Choose from an advanced or simplified display or one of the optional face decals for comfort in a minimal, sleek design. Advanced Display Simplified Display Optional Face Decals Single Setpoint Face Decals for Simplified Display BRC1E72RM BRC1E72RM2 Dual Setpoint Face Decals for Simplified Display BRC1E72RF BRC1E72RF2 BRC1E72MF BRC1E72MF2 30

31 Advanced Control Function 7 day Schedule Up to 5 actions per day (7 days, 5+1+1,5+2, everyday), Off timer (from 30 mins to 3 hours) Temperature Limiting Configurable upper & lower limit restriction for the occupied cool and heat setpoints Control Lockout Ability to restrict all or some of the buttons. Ability to limit operation mode selection Run-On Timer Allows a unit to be turned on, outside time clock settings, for an extended period Dual setpoints For both occupied and unoccupied (setback) period Auto cool/heat changeover Automatic adjustment for Daylight Saving Time (DST) Temperature sensor with configurable offset Operation Mode Fan Speed Room Temp Operation Menu Mode Navigation Selector Control Fan Speed Control Current Date/Time Set point Backlit Display On/Off Menu/OK Cancel A major feature is the ability to have a single ducted unit serve two areas and still provide individual control to the users in both zones. The controllers operate on the basis of last command priority. 31

32 Controls Wireless Controller A wireless controller is available for use with IDU. Wireless controllers are often used in bedrooms or zones that do not see frequent multiple occupants. Operation: Start/Stop Operation Mode Temperature Setpoint (60º F - 90º F) Fan Speed Airflow Direction Monitoring: Status Malfunction Flashing Malfunction Content Operation Mode Temperature Setting Fan Speed Airflow Direction Remote Temperature Sensors: Most applications do not require the use of a remote temperature sensor. Typically an IDU will use an internal return air temperature sensor or the sensor on the navigation remote control for feedback to condition the space. However, there are applications in which the unit may not have a return air sensor and/or the navigation control location is not ideal for temperature sensing. These applications require the use of a remote temperature sensor. Note: The FXTQ and the CXTQ must use the navigation control or a remote temperature sensor (KRCS01-2UA) as they do not have a return air sensor within the unit 32

33 Design & Application

34 Residential Single Story Single Zone Ducted Bedroom Bedroom Bath Living Closet Closet Laundry Kitchen Bath Closet Bedroom Garage Dining This single zone ducted example serves as an excellent example of a single floor home with an existing centralized forced air system that has been retrofitted to include the Daikin gas furnace and A-Coil, allowing homeowners to realize the attributes of a VRV system while reusing their existing infrastructure. Sample System CXTQ24 Repurposed Main Line Set 3/8 x 5/8 RXSQ24 DM97MC0603B BRC1E73 34

35 Two Zones & Tempered Garage Bedroom Bedroom Bath Living Closet Closet Laundry Kitchen Bath Closet Similar to the previous single zone example this layout reuses the existing ductwork while also providing enhanced comfort control in a key zone, the master bedroom. Additionally a wall mounted ductless unit has been included in the garage for comfortable working conditions for homeowners who may use the garage as a working space. Sample System Bedroom 3/8 x 5/8 Dining KHRP26A22T9 Garage 1/4 x 1/2 1/4 x 1/2 DESIGN & APPLICATION KHRP26A22T9 3/8 x 5/8 (Commons & Beds) FXMQ18 (Master Bed) FXAQ07 (Garage) 3/8 x 5/8 BRC1E73 BRC1E73 RXSQ48 BHL-02A DM97MC0803B BRC1E73 35

36 Residential Single Story Four Zones Mixed Bedroom Bedroom Bath Living Closet Closet Laundry Kitchen Bath Bedroom Closet Garage Dining In some applications the VRV LIFE system can also be used as a 100% heat pump system without the need for auxiliary heat. This single floor example shows a four zone system using a mix of ductless (concealed floor mounted units) and ducted (concealed KHRP26A22T9 ducted units) for a KHRP26A22T9 3/8 x 5/8 3/8 x 5/8 3/8 x 5/8 FXMQ30 (Common Areas) modern and efficient 3/8 x 5/8 solution to heating and RXSQ48 cooling a home. Sample System KHRP26A22T9 BRC1E73 FXMQ12 (Master Bed) FXNQ07 (Bed) 1/4 x 1/2 1/4 x 1/2 BRC1E73 FXNQ07 (Bed) BRC1E73 1/4 x 1/2 BRC1E73 36

37 Two Zones Ducted Bath Kitchen Laundry Living Media Dining Garage Bedroom Bedroom Bedroom Similar to the single floor example a two story home with an existing centralized forced air system for both upstairs and downstairs can be retrofitted to include a Daikin gas furnace and VRV A-Coil. Bath CL CL CXTQ36 Guest Bedroom Entrance Bath Sample System (First Floor) 3/8 x 5/8 3/8 x 5/8 RXSQ48 3/8 x 5/8 KHRP26A22T9 BRC1E73 DM96VC0603B CXTQ24 (Second Floor) DM96VC0403B BRC1E73 37

38 Residential Two Story Three Zones & Conditioned Garage Bath Kitchen Laundry Living Media Dining Garage In this example a centralized forced air system has been retrofitted with a Daikin gas furnace and VRV A-coil for the first floor. The second floor is utilizing concealed ducted units for a distributed zoned ducted solution. Bedroom Bath Bedroom Bedroom CL CL Guest Bedroom Entrance Bath KHRP26A22T9 3/8 x 5/8 RXSQ60 BHL-02A Sample System KHRP26A22T9 3/8 x 5/8 3/8 x 5/8 KHRP26A22T9 3/8 x 5/8 1/4 x 1/2 FXAQ09 (Garage) FXMQ12 (Master Bed) BRC1E73 1/4 x 1/2 CXTQ36 DM97MC0603B (First Floor) FXMQ15 (Bedrooms) BRC1E73 1/4 x 1/2 BRC1E73 BRC1E73 38

39 Five Zones Mixed Bath Kitchen Laundry Living Media Dining Garage In this example the first floor s existing central forced air system has been retrofitted with a Daikin G/F & A-Coil and paired with a ductless solution for the second floor. Bedroom Bath Bedroom Bedroom CL CL Guest Bedroom Entrance Bath KHRP26A22T9 3/8 x 5/8 KHRP26M22H9 RXSQ60 BHL-02A 3/8 x 5/8 3/8 x 5/8 First Floor CXTQ36 FXNQ07 (Bed) 1/4 x 1/2 1/4 x 1/2 FXNQ07 (Bed) Sample System FXNQ07 (Bed) 1/4 x 1/2 1/4 x 1/2 FXZQ12 (Master Bed) BRC1E73 DM97MC0603B 39

40 Installation Considerations Outdoor Unit Installation Space The three primary criteria to consider when installing the ODU are Air Starvation, Short Circuiting, and Service Space. Be sure to consider environmental effects such as wind and snow that can potentially impact performance of the ODU. Required service clearances for common standalone ODU configurations are shown below. For further details and example configurations please refer to the installation manual. Obstacle on the suction side only Obstacle on the discharge side only 4(100) or more 20(500) or more Inch (mm) 40

41 40(1000) or more Obstacle on the suction, left, and right side Obstacle on the discharge, left, and right side 20(500) or less 40(1000) or more 4(1000) or more 4(1000) or more 4(1000) or more 6(150) or more 6(150) or more 6(150) or more Inch (mm) Obstacle on the discharge side and above 20(500) or more Obstacle on the suction side and above 20(500) or less 40(1000) or more inch(mm) 20(500) or more 40(1000) or more Inch (mm) 41

42 Installation Considerations Snow Exposure When installing the ODU in a location frequently exposed to snow consider the following: Elevate the foundation as high as possible Attach a snow hood (field supplied) Remove the rear inlet grille to prevent snow from accumulating on the rear fins Close Obstruction (5 Clearance) Air Adjustment Grille (P/N KPW5E112) Snow Applications Headwind Headwind Strong Wind Exposure Strong winds ( 11 mph) may force recirculation of exhaust air into the inlet resulting in a deterioration of the system performance and possible increased frost formation in heating mode. Consider wind effects when placing the outdoor unit and using a wind baffle. ODU Model RXSQ24TA-RXSQ48TA RXSQ60TA KPW5E80 x 2 Wind Baffle Model KPW5E112 Indoor Installation of ODU It is permissible to install the ODU indoors if it is necessary. The same space rules apply as in enclosed areas. Airflow must not be restricted. Each unit has a maximum static pressure of 0.10" W.C. Short circuiting and air starvation must also be addressed. 42

43 Receiver Tank Kit Installation A receiver (liquid refrigerant tank) is required in applications where the RXSQ is connected to both a gas furnace and other VRV IDUs. The receiver kit (BHL-02A) ships from the factory in a sheet metal enclosures. The refrigerant tank is independent of refrigerant flow direction. Either one of the 3/8 connections can be connected to the liquid connection on the ODU. Adhere to the following installation guidelines: Install the tank in the nearest and most convenient location to the ODU near the liquid service valve. The tank can be oriented to the front, rear, or side of the ODU. Refer to the ODU installation 7.91 manual for clearance and service space around 8.61 the ODU. If necessary use fasteners on the base. There is no specific required distance between ODU and the tank

44 Installation Considerations Indoor Unit Installation Space The primary minimum required clearances for common indoor units are displayed in the following section. All dimensions are listed in inches. For complete, further details, installation patterns, and exact minimum clearances refer to the applicable installation manual. Multi Position AHU (FXTQ) Vertical Installation Side View Front 24 Horizontal Installation 24 Front Side View 44

45 Slim Ducted Ceiling Concealed (FXDQ) Front View Control Box Side View 9½ 12"* 12" 13/16" 100" Floor Surface DC Ducted Ceiling Concealed (FXMQ) Top View Side View Refrigerant Connections Service Space Floor Surface Concealed Floor Mounted (FXNQ) 6 6 ¾ Top View Front Side 40 45

46 Installation Considerations Flat Panel Wall Mounted (FXAQ) /8 Front View Side View 1¼ 4¾ Obstruction 99 Floor Surface 4-Way Ceiling Mounted Cassette (FXZQ) High Ceiling Installations

47 Heat Pump Changeover There are four ways to provide heat/cool changeover on a VRV LIFE system. Master Controller Return Air Sensor MANUAL CHANGEOVER via Master Controller AUTO CHANGEOVER via Master Unit Master Unit Master Unit The simplest way to address heat/cool changeover automatically is to nominate a master unit. When the unit s return air sensor measures outside the temperature set point limitation, the unit switches itself and all other units on the system to the different mode. Master Controller Similar to the previous option except mode selection is made manually by a designated master controller. Again, all other units on the system will switch mode in unison. Note: A common pitfall is to elect an area that is not in constant use or has no easy access to all occupants (bedroom). In both applications above, if the unit isn t running then mode change is not possible without manual intervention. 47

48 Heat Pump Changeover Ambient Sensor AUTO CHANGEOVER via Master Unit MANUAL CHANGEOVER Summer/Winter Switch A Daikin supplied switch is attached to ABC terminals on the outdoor unit to allow manual change over from a central location. This is common in applications that usually require year round cooling. 3rd Party Ambient Sensor This option was developed to provide an automatic version of summer/ winter switch previously described. A remote ambient sensor will dictate when mode change occurs. Although possible, it is an option rarely seen on residential applications. Summary: With ALL changeover options, when a system mode is changed, the indoor units on the system are not forced into heating or cooling. If there is no demand in the room for the mode that has been selected, the unit(s) will run in fan only mode. 48

49 Auxiliary Heat VRV LIFE systems (RXSQ) can provide heat pump heating with ambient temperatures as low as -4º F. However, it may be necessary to incorporate an auxiliary heat source to avoid oversizing the ODU to meet a low design day temperature or for heating in temperatures below -4º F. The switchover point from VRV heating to auxiliary heating is typically based on a balance point considering several factors such as climate, load, available capacity, fuel/system cost, and environmental impact. VRV + Alternative Heat Heating Load Coldest Day of the Year Alternative Heat Balance Point Available ODU Capacity Covered by VRV Spare VRV Capacity Heating Requirement Outdoor Temperature A gas furnace in a VRV system is considered an alternative heat method. At the switchover temperature the system switches over from entirely VRV heating to entirely gas furnace heating. VRV + Supplemental Heat Heating Load SH Coldest Day of the Year Balance Point Available ODU Capacity Covered by VRV Spare VRV Capacity Heating Requirement An electrical coil downstream of an indoor unit is considered a supplemental heat source. The electrical coil works in conjunction with the VRV system to provide heating beyond the balance point. Outdoor Temperature 49

50 Auxiliary Heat Gas Heat vs Heat Pump Auto Changeover VRV LIFE systems are capable of auto switchover from heat pump heating to gas heat at a gas furnace ambient engage temperature (balance point). A recommended switchover temperature is calculated in the WebXpress selection software and is configured at the ODU. Balance point: (G/F Engage Temp) is a field setting on the ODU, calculated balance point must correspond to valid field setting (2-14) Heat load: linear approximation from inputted heat load at design day and defined zero load ambient temperature (WebXpress Setting) WebXpress Balance Point Example Calculation: 90 Heating Load (MBH) º F 20º F 25º F Heating Load Line Total Heating Load Line Gas furnace Heating Load Line Heat Pump RXSQ60 RXSQ48 RXSQ Ambient Temperature (ºF) Gas Furnace VRV IDU 1 VRV IDU 2 Total VRV IDU Design Heating Load 60,000 12,000 12,000 24,000 Design Heating Ambient (F) Zero Load Ambient (F) 65 Note: ODU is sized based on cooling, alternative selections allow for shifting balance point. 50

51 Auxiliary Heat G/F Engage Temp Field Setting (2-14) Setting # * Forced G/F No Temp (º F) Only Engagement The release (or temperature) differential above the ambient engagement temperature, that the gas furnace will shut off and the heat pump will turn on, is also a configurable value. Gas Furnace Heat Gas Furnace Release Differential (10º F Default) Gas Furnace Ambient Engage Temperature (15º F Default) Heat Pump Heat G/F Release Differential Field Setting (2-15) Setting # Release Differential (F) 5 10* 15 *Factory Defaults VRV IDU Auxiliary Heat Similar changeover logic is available for each VRV IDU via the Auxiliary heat PCB (KRP1C 74/75), see IDU accessories in WebXpress. A third party auxiliary heating device (ex. Electric heater) is required. This would be necessary for zones needing auxiliary heat and that are being conditioned solely by a VRV IDU (no gas furnace). Note: The FXTQ IDU has the option of integrated auxiliary electric heat up to 25 kw without the need of the KRPIC 74/75. 51

52 Refrigerant Piping Design REFNETs REFNET joints and headers are a factory designed option for the branching within the refrigerant piping network. These fittings are engineered to allow for uniform refrigerant flow and distribution, and smooth oil return. REFNET Joint A REFNET joint splits a gas or refrigerant line into two lines. These joints account for approximately 1.5 feet of equivalent pipe length. It is allowable to install these joints in either a vertical or ±30º from horizontal. In noise sensitive applications it is recommended the clearances around a REFNET joint displayed below are maintained. Towards Condensing Unit Vertical +30º 20 min. 40 min. Horizontal -30º 20 min. Note: 12" minimum distance on all scenarios above is possible. However, there is an increased risk of turbulent flow which may increase noise levels in the pipe. 52

53 Recommended support intervals for a REFNET joint are indicated in the figure to the right Support Points REFNET Header REFNET headers are available in 4-port and 8-port configurations and account for approximately 3.3 feet of equivalent pipe length. Headers must be installed horizontally level and are typically installed suspended from the ceiling (spacing below). Ceiling Liquid Side Header Ceiling Support Gas headers and liquid headers differ in that the branch piping extends from the bottom of the main header pipe for the liquid line while the gas line header extends horizontally from the header. Ceiling Gas Side Header Pedestal 53

54 Refrigerant Piping Design REFNET Joint Gas vs Header 24 Headers allow for a centralized location of refrigerant piping fittings 15 which may prove to be advantageous in some 15 applications that do not have the installation space and/or clearance available to install individual REFNET joints throughout the interior living space of the home. KHRP26M22H9 KHRP26M33H9 KHRP25A22T Liquid 26 Bath Kitchen Living Bedroom Bedroom Bedroom Laundry Dining Bath Common Space CL CL Media Entrance Bedroom Garage Bath Bath Kitchen Living Bedroom Bedroom Bedroom Laundry Dining Bath Common Space CL CL Media Entrance Bedroom Garage Bath 54

55 Power Wiring Below is a general power wiring diagram. Refer to the installation manual for further details. Power Supply Single Phase 60 Hz 208/230V L1 L2 Outdoor Unit Switch Power Supply Single Phase 60 Hz 208/230V L1 L2 FUSE L2 L1 Power Supply Single Phase 60 Hz 115V L1 L2 Single Phase 24V L1 L2 L1 L2 Switch Switch FUSE FUSE Transfermer from kit mounted in gas furnace L1 L2 L1 L2 L1 L2 Indoor Units ( CXTQ ) WARNING HIGH VOLTAGE Disconnect ALL power before servicing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. 55

56

57 General Equipment Specifications

58 Capacities Outdoor and Indoor Unit Capacities Outdoor Unit Capacities Model Number Heating (MBH) Cooling (MBH) Nominal Rated Nominal Rated RXSQ24TAVJU 27,000 25,800 24,000 23,000 RXSQ36TAVJU 40,000 37,000 36,000 34,200 RXSQ48TAVJU 52,000 49,500 48,000 45,500 RXSQ60TAVJU 57,000 57,000 57,500 57,500 Indoor Unit Capacities Model Number Nominal (Tons) Rated Heating (MBH) Cooling (MBH) FXTQ FXTQ09TAVJU ,500 9,500 FXTQ12TAVJU 1 13,500 12,000 FXTQ18TAVJU ,000 18,000 FXTQ24TAVJU 2 27,000 24,000 FXTQ30TAVJU ,000 30,000 FXTQ36TAVJU 3 40,000 36,000 FXTQ42TAVJU ,000 42,000 FXTQ48TAVJU 4 54,000 48,000 FXTQ54TAVJU ,000 54,000 FXTQ60TAVJU 5 66,000 60,000 FXNQ FXNQ07MVJU 0.6 8,500 7,500 FXNQ09MVJU ,500 9,500 FXNQ12MVJU 1 13,500 12,000 FXNQ18MVJU ,000 18,000 FXNQ24MVJU 2 27,000 24,000 FXTQ-T FXFQ07TVJU 0.6 8,500 7,500 FXFQ09TVJU ,500 9,500 FXFQ12TVJU 1 13,500 12,000 FXFQ15TVJU ,000 15,000 FXFQ18TVJU ,000 18,000 FXFQ24TVJU 2 27,000 24,000 FXFQ30TVJU ,000 30,000 FXFQ36TVJU 3 40,000 36,000 FXFQ48TVJU 4 54,000 48,000 Note: Capacities do not reflect actual operating conditions. Refer to WebXpress, the VRV section software, for actual available capacities at the specific design conditions. 58

59 Indoor Unit Capacities Model Number Nominal (Tons) Rated Heating (MBH) Cooling (MBH) FXZQ FXZQ07MVJU ,700 7,500 FXZQ09MVJU ,100 9,500 FXZQ12MVJU9 1 14,000 12,000 FXZQ15MVJU ,500 15,000 FXZQ18MVJU ,000 18,000 FXUQ FXUQ18PVJU ,000 18,000 FXUQ24PVJU 2 27,000 24,000 FXUQ30PVJU ,000 30,000 FXUQ36PVJU 3 40,000 36,000 FXEQ FXEQ07PVJU 0.6 8,500 7,500 FXEQ09PVJU ,500 9,500 FXEQ12PVJU 1 13,500 12,000 FXEQ15PVJU ,000 15,000 FXEQ18PVJU ,000 18,000 FXEQ24PVJU 2 27,000 24,000 FXDQ FXDQ07MVJU 0.6 8,500 7,500 FXDQ09MVJU ,500 9,500 FXDQ12MVJU 1 13,500 12,000 FXDQ18MVJU ,000 18,000 FXDQ24MVJU 2 27,000 24,000 FXMQ FXMQ07PBVJU 0.6 8,500 7,500 FXMQ09PBVJU ,500 9,500 FXMQ12PBVJU 1 13,500 12,000 FXMQ15PBVJU ,000 15,000 FXMQ18PBVJU ,000 18,000 FXMQ24PBVJU 2 27,000 24,000 FXMQ30PBVJU ,000 30,000 FXMQ36PBVJU 3 40,000 36,000 FXMQ48PBVJU 4 54,000 48,000 FXMQ54PBVJU ,000 54,000 GENERAL EQUIPMENT 59

60 Capacities Outdoor and Indoor Unit Capacities Indoor Unit Capacities Model Number Nominal (Tons) Rated Heating (MBH) Cooling (MBH) FXAQ FXAQ07PVJU 0.6 8,500 7,500 FXAQ09PVJU ,500 9,500 FXAQ12PVJU 1 13,500 12,000 FXAQ18PVJU ,000 18,000 FXAQ24PVJU 2 26,500 24,000 FXHQ FXHQ12M 1 13,500 12,000 FXHQ24M 2 27,000 24,000 FXHQ36M 3 40,000 36,000 FXLQ FXLQ07MVJU 0.6 8,500 7,500 FXLQ09MVJU ,500 9,500 FXLQ12MVJU 1 13,500 12,000 FXLQ18MVJU ,000 18,000 FXLQ24MVJU 2 27,000 24,000 CXTQ CXTQ24TASBLU 2 24,000 27,000 CXTQ36TASBLU 3 36,000 40,000 CXTQ48TASBLU 4 48,000 54,000 CXTQ60TASBLU 5 60,000 66,000 Notes: Nominal cooling capacities are based on the following: Return Air Temp: 80º FDB, 67º F wb Outdoor Temp: 95º FDB Equivalent ref. piping length: 25 ft Nominal cooling capacities are based on the following: Return Air Temp: 70º FDB Outdoor Temp: 47º FDB, 47º FWB Equivalent ref. piping length: 25 ft 60

61 Pipe Sizes Indoor Unit Pipe Sizes Nominal Capacity MBH (Tons) Liquid (in) Gas (in) ( ) 1/4" 1/2" ( ) 3/8" 5/8" Outdoor Standard Pipe Sizes Nominal Capacity MBH (Tons) Liquid (in) Gas (in) 24 (2) 3/8" 5/8" 36 (3) 3/8" 5/8" 48 (4) 3/8" 5/8" 60 (5) 3/8" 3/4" Note: ODU pipe sizes reflect standard connection. Sizes larger than standard gas pipes may be allowed. See prior "Capacity Range and Operating Limits" section. 61

62 Electrical Electrical Requirements Outdoor Units Model Number MCA (A) MOCP (A) RXSQ24TAVJU RXSQ36TAVJU RXSQ48TAVJU RXSQ60TAVJU Indoor Units Model Number MCA (A) MOCP (A) FXTQ FXTQ09TAVJU FXTQ12TAVJU FXTQ18TAVJU FXTQ24TAVJU FXTQ30TAVJU FXTQ36TAVJU FXTQ42TAVJU FXTQ48TAVJU FXTQ54TAVJU FXTQ60TAVJU FXNQ FXNQ07MVJU FXNQ09MVJU FXNQ12MVJU FXNQ18MVJU FXNQ24MVJU FXFQ-T FXFQ07TVJU FXFQ09TVJU FXFQ12TVJU FXFQ15TVJU FXFQ18TVJU FXFQ24TVJU FXFQ30TVJU FXFQ36TVJU FXFQ48TVJU FXZQ FXZQ07MVJU FXZQ07MVJU Note: NEC requires all IDU's be connected to a 15 A fuse breaker by default, though multiple can be connected to the same circuit. 62

63 Indoor Units Model Number MCA (A) MOCP (A) FXZQ07MVJU FXZQ07MVJU FXZQ07MVJU FXUQ FXUQ18PVJU FXUQ24PVJU FXUQ30PVJU FXUQ36PVJU FXEQ FXEQ07PVJU FXEQ09PVJU FXEQ12PVJU FXEQ15PVJU FXEQ18PVJU FXEQ24PVJU FXDQ FXDQ07MVJU FXDQ09MVJU FXDQ12MVJU FXDQ18MVJU FXDQ24MVJU FXMQ FXMQ07PBVJU FXMQ09PBVJU FXMQ12PBVJU FXMQ15PBVJU FXMQ18PBVJU FXMQ24PBVJU FXMQ30PBVJU FXMQ36PBVJU FXMQ48PBVJU FXMQ54PBVJU FXAQ FXAQ07PVJU FXAQ09PVJU FXAQ12PVJU FXAQ18PVJU FXAQ24PVJU

64 Electrical Electrical Requirements Indoor Units Model Number MCA (A) MOCP (A) FXHQ FXHQ12M FXHQ24M 1 15 FXHQ36M FXLQ FXLQ07MVJU FXLQ09MVJU FXLQ12MVJU FXLQ18MVJU FXLQ24MVJU CXTQ CXTQ24TASBLU - - CXTQ36TASBLU - - CXTQ48TASBLU - - CXTQ60TASBLU - - Gas Furnace Model Number MCA (A) MOCP (A) DM80VC DM80VC0604B DM80VC0805C DM80VC1005C DM96VC DM96VC0403BNA DM96VC0603BNA DM96VC0803BNA DM96VC0804CNA DM96VC1005CNA DM96VC1205DNA DM97MC DM97MC0603BNA DM97MC0803BNA DM97MC0804CNA DM97MC1005CNA DM97MC1205DNA

65 Electrical Requirements DC80VC DC80VC0805CXA DC80VC1005CXA DC96VC DC96VC0403BNA DC96VC0603BNA DC96VC0804CNA DC96VC1005CNA DC96VC1205DNA DC97MC DC97MC0603BNA DC97MC0803BNA DC97MC0804CNA DC97MC1005CNA

66 Tips & Considerations Always refer to the Engineering Data, Installation Manual and Service Manual for detailed explanation and specification for VRV products. Utilize WebXpress selection software to ensure equipment selections are in accordance with all limitations and system capabilities. Maximize the use of Daikin City portal to auto generate submittal packages and streamline project management, update and quoting (where applicable). Ask a qualified installer or contractor to install this product. Do not try to install the product yourself. Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or contractor to install those parts and accessories. Use of unauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion. Read the user s manual carefully before using this product. The user s manual provides important safety instructions and warnings. Be sure to follow these instructions and warnings. If you have any enquiries, please contact your local importer, distributor and/or retailer. 66

67 Where to find official information Product Detail Design Guide Eng. Data IOM Submittal Option Handbook SVM Sales Bulletin Features Summary Specification Drawings Performance Installation Summary Table Electrical Dimension Piping Wiring Capacity Correction Piping Airflow / ESP Sound Level Piping Wiring Fundamentals Sizing & Charging Operation How to use Controls Accessories Specification Installation Characteristics Functions Test Operation Set-up, Troubleshooting Commissioning & Service Flow Charts Replace Procedure 67

68 Notes 68

69 Notes 69

70 Notes 70

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72 For more information: Sales and Technical Support: DAIKIN1 or daikinac.com Additional Information Before purchasing this appliance, read important information about its estimated annual energy consumption, yearly operating cost, or energy efficiency rating that is available from your retailer. Daikin, VRV, and their designs are trademarks owned by Daikin PM-DKLIFE 09-18