System Air Conditioner (Cooling and Heating) E S F I D DB A(2) ENGLISH ESPAÑOL FRANÇAIS ITALIANO DEUTSCH

Transcription

1 INSTALLATION MANUAL RVXVHT080G Series RVXVHT100G Series RVXVHT120G Series RVXVHT140G Series RVXFHT080G Series RVXFHT100G Series RVXFHT120G Series RVXFHT140G Series DEUTSCH ENGLISH ESPAÑOL FRANÇAIS ITALIANO System Air Conditioner (Cooling and Heating) E S F I D DB A(2)

2 Contents PREPARING THE INSTALLATION Locating the Units INSTALLING THE UNIT Wiring Work Refrigerant Pipe Work COMPLETING THE INSTALLATION AND COMMISSIONING Performing the Refrigerant Gas Leak Test Preparing and Charging the Refrigerant Pipe Setting the Option Switch and Function of the Keys Completing the Installation Final Checks and Trial Operation E-2

3 ENGLISH Safety Precautions The following safety precautions must be taken when installing the unit. R410A refrigerant is used for DVM PLUS II air conditioner. - When using R410A, moisture or foreign substances may affect to the capacity and reliability of the product. Safety precautions must be taken when installing the refrigerant pipe. - The design pressure of the unit is 4.1MPa. Select appropriate material and thickness according to the regulations. - R410A is a quasi-azeotrope of two refrigerants. Make sure to charge liquid one when adding refrigerant. If you charge gaseous refrigerant, it may affect the capacity and reliability of the product as a result of change formation of the refrigerant. Connect only the indoor units fit on R410A refrigerant. Check whether the indoor units can be connected with the product s catalogue. (When incorrect indoor units are connected, they cannot operate normally.) E-3

4 WARNING If you don t follow the safety precautions, you may get the risk of serious wound or death. The installation must be done by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard. - Installation by an unqualified person may cause a water leakage, electric shock or fire and so on. The electric work must be done by service agent or similarly qualified persons according to national wiring regulations and use only rated cable. - If the capacity of the power cable is insufficient or electric work is not properly completed, electric shock or fire may occur. Install the outdoor unit correctly according to the installation manual. - An incorrect installation may cause a water leakage, electric shock or fire and so on. Manufacturer is not responsible for accidents due to incorrect installation. When you install the air conditioner in a small room, you consider a proper ventilation to prevent a leakage level within the maximum permissible limit. - In that case, you may die from suffocation by some possibility. Use only rated parts and tools. - If you don t use the rated parts and tools, it can cause trouble with the air conditioner and bring about injury. Install the outdoor unit on a hard and even place that can support its weight. - If the place cannot support its weight, the outdoor unit may fall down and it may cause injury. Fix the outdoor unit securely to prepare against strong wind or earthquake. - If the outdoor unit is not properly fixed, it turns over and accidents may occur. Install the cables with supplied cables firmly. Fix them securely so that external force is not exerted to the terminal board. - If the connection or fixing is incomplete, it can cause trouble with a heat generation, electric shock or fire and so on. Arrange the cables between the indoor and outdoor unit after connecting. Attach the cover securely so that the electrical component box cover does not get loosen. - If the cover is attached incompletely, it can cause trouble with a heat generation, electric shock or fire of the terminal board. Install separate MCCB and ELB when installing the power cable. - If you do not install the MCCB and ELB, electric shock or fire may occur. The unit must be plugged into an independent circuit if applicable or connect the power cable to the auxiliary circuit breaker. An all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact opening of >3mm. If any gas or impurities except R410A refrigerant come into the refrigerant pipe, serious problem may occur and it may cause injury. Make sure there is no leakage after installation. - Toxic gas may generate when refrigerant gas contacts with fire. Leak test must be done using only Nitrogen gas. E-4

5 ENGLISH CAUTION If you don t follow the safety precautions, you may get the risk of injury or loss of property. Make sure of a earthing. - Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire. If earthing is incomplete, electric shock or fire may occur. Do not connect the heater to the outdoor unit and do not install remodeled duct as you please. - The capacity of the air conditioner may reduce, electric shock or fire may occur and it has a chance of occurrence of and accident like electric shock or fire. Make sure that the condensed water dripping from the drain hose runs out properly and insulate the drain pipe so that frost does not generate. - Household goods may get wet if the drain pipe is not properly installed. Install the power cable and communication cable of the indoor and outdoor unit at least 1m away from electric appliances. - Noise may heard depending on the electric wave though the cables are installed away from electric appliances. Install the indoor unit away from lighting apparatus using the ballast. - If you use the wireless remote control, it may not operate normally. Do not install the air conditioner in following places. - The place where there is mineral oil or arsenic acid There is a chance that parts may get damaged due to burned resin. The capacity of the heat exchanger may reduce or the air conditioner may be out of order. - The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet The copper pipe or connection pipe may corrode and refrigerant may leak. - The place where there is a machine that generates electromagnetic waves The air conditioner may not operate normally due to control system. - The place where there is a danger of existing combustible gas, thinner or gasoline is handled. - The place where carbon fiber or flammable dust is. - The place where like spa and shore. E-5

6 Locating the Units combination Install the indoor unit only for R410A. Remarks RVXVHT: Digital variable outdoor unit RVXFHT: Fixed outdoor unit Subject Single unit Subject Module unit cooling capacity Model (Series) Total capacity of the connected indoor unit (kw) Maximum quantity of the indoor units HP kw RVXVHT080G 11.3~ RVXVHT100G 14.0~ RVXVHT120G 16.8~ RVXVHT140G 20.0~ cooling capacity HP kw Model (Series) Quantity RVXVHT080G 1 RVXFHT080G 1 RVXVHT100G 1 RVXFHT080G 1 RVXVHT100G 1 RVXFHT100G 1 RVXVHT120G 1 RVXFHT100G 1 RVXVHT140G 1 RVXFHT100G 1 RVXVHT140G 1 RVXFHT120G 1 RVXVHT140G 1 RVXFHT140G 1 RVXVHT100G 1 RVXFHT100G 2 RVXVHT120G 1 RVXFHT100G 2 RVXVHT140G 1 RVXFHT100G 2 RVXVHT140G 1 RVXFHT140G 1 RVXFHT080G 1 RVXVHT140G 1 RVXFHT140G 1 RVXFHT100G 1 RVXVHT140G 1 RVXFHT140G 1 RVXFHT120G 1 RVXVHT140G 1 RVXFHT140G 2 RVXVHT140G 1 RVXFHT100G 3 RVXVHT140G 1 RVXFHT120G 1 RVXFHT100G 2 RVXVHT140G 1 RVXFHT140G 1 RVXFHT100G 2 Total capacity of the connected indoor unit (kw) Maximum quantity of the indoor units 22.5~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ E-6 Connect 13~48 indoor units to outdoor unit. Minimum capacity of the indoor unit is 2.2kW. Connect the indoor units to a maximum of 130% of the outdoor unit capacity. Maximum quantity of the indoor units over 32HP is related to the maximum communication address.

7 Moving the Outdoor Unit Select the moving route. Secure the strength of the carrying to resist against the weight of the outdoor unit while moving. Do not slant the product more than 30 when carrying it. (Do not lay the product down sideways.) The surface of the heat exchanger is sharp. Be careful not to be get injury while moving. Wire rope/straps Plate protection cloth ENGLISH When moving with a crane or straps Fasten the wire rope as seen in the picture. To protect damage or scratches, insert a piece of cloth between the outdoor unit and the wire rope. leg When moving with a fork lift Insert the fork into the bottom of the outdoor unit properly. Be careful that the fork does not damage the outdoor unit. Fork part Detaching Fasteners 1 Open the cabinet near the bottom. The compressors are fastened with nuts in 4 places(8/10hp) or in 6 places(12/14hp). 2 Detach nut washer, washer and stopper nut from compressors with a tool. Remove Stopper nut Washer Nut washer 3 Refasten them with the nut washer only. CAUTION Pay your attention to do not touch the copper pipes as detaching the fasteners. The stopper nut and washer should be removed. If this work is not conducted correctly, the outdoor unit could be vibrated and make much noise. E-7

8 Locating the Units (Continued) Decide the installation location regarding the following condition and obtain the user s approval. Avoid a place that may disturb your neighbor. Noise may occur from the outdoor unit and the discharged air may run into the neighborhood. (Be careful of the operation time in a residential area) Install the outdoor unit on a hard and even area that can support its weight. Choose a flat place that rainwater does not settle or leak. Choose a place avoiding strong winds. Maintain sufficient space for repairs and service. Choose a place where you can easily connect the pipes and cables to the indoor unit. Make sure that the condensed water dripping from the drain hose runs out properly and safely. These products are not appropriate for installing in those places like shore and spa. If you want to install them in such places, you should contact to our company. ( Space Requirements for Outdoor Unit Observe the clearances and dimensions as seen below when installing the outdoor unit. If you install several outdoor units simultaneously, observe the space for ventilation and free airflow. If the space for ventilation is insufficient, the air conditioner may be inefficient. SAMSUNG logo is attached on the front side of the outdoor unit. When installing 1 outdoor unit 300 or more 100 or more Front Front 10 or more 50 or more side side 10 or more 50 or more 10 or more 500 or more < Case 1 > < Case 2 > 500 or more The height of the wall is unlimited < Case 3 > (Unit : mm) 300 or more E-8

9 ENGLISH When installing more than 1 outdoor unit (Unit : mm) In case of Case 1 and Case 2 The height of the wall should be 1500mm or less in the front side. The height of the wall should be 500mm or less in the air inlet side. The height of the wall is unlimited in the side. If the height of the wall exceeds the above value, the additional height (h1)/2, (h2)/2 should be added to the service space(s1), (S2) individually h1 Front side 500 or more 300 or more 100 or more 10 or more 20 or more Front side 20 or more < Case 1 > 10 or more 500 or more 50 or more 100 or more Front side < Case 2 > 100 or more 50 or more 300 or more The height of the wall is unlimited 200 or more 400 or more 400 or more < Case 3 > Air inlet 500 h2 (Unit : mm) S1+h1/2 S2+h2/2 E-9

10 Locating the Units (Continued) Installing the Outdoor Unit CAUTION Do not install the outdoor unit on a wood palette. Fix the outdoor unit completely to the base surface with anchor bolts. The manufacturer is not responsible for the damage occurred by not keeping standard of the installation. Drain hole (Unit : mm) 200 or more < When installing on the ground > Install the outdoor unit horizontally on the ground 200 or more < When installing on the roof > Base mount construction Install the outdoor unit higher than 200mm from the base surface and install the drain hole to connect the pipe to the drainage. The concrete foundation should be 1.5 times larger than bottom of the outdoor unit. When heating, condensed water may be generated. Pay attention to waterproof and drainage of the concrete foundation where the outdoor unit is installed. (An ice road may form on the base surface in winter) Make up for wire mash or steel bar so that the outdoor unit is not damaged or broken when installing concrete foundation. When installing the outdoor units in same place simultaneously, install the H beam inside concrete foundation. (When installing a number of outdoor unit, you can install it on the concrete foundation) Install the H beam(150mm x 150mm x t10 : basic specification) or vibration absorption frame to jut out from the concrete foundation. After installing the H beam or vibration absorption frame, apply corrosion protection. Install a square pad(t=20mm or more) or vibration absorption frame to prevent vibration of the outdoor unit delivering to the base surface when installing the concrete for the outdoor unit. Place the outdoor unit on the H beam or vibration absorption frame and fix it with the bolt, nut and washer. (The bearing power is more than 3.5kN) Concrete foundation H beam or vibration absorption frame Anchor bolt Nut, Spring washer 75mm 20mm Square pad A H beam A+10~20mm or more E-10

11 ENGLISH base mount and anchor bolt position A (Unit : mm) B Model (Series) A B RVXVHT080/100G RVXVHT120/140G CAUTION When tightening the anchor bolt Tighten the rubber washer to prevent the outdoor unit bolt connection part from corroding. Rubber washer When connecting the pipes To protect the internal components of the outdoor unit, secure the pipework entrance to the unit. Close the part. (When the pipe is projected to the front side) Liquid side pipe Gas side pipe Anchor bolt Installing the drain pipe When installing 1 outdoor unit When installing more than 1 outdoor unit (Rear side) Open to air (Rear side) (Rear side) (Rear side) Open to air Drain plug More than 1/50 slope Drain plug More than 1/50 slope Do not place a trap on the concentrated pipe. And install the drain pipe horizontally with a slope of 1/50 or more. Insulate the drain pipe and drain plug by using the insulation over 10t. Install a self-regulation heat cable to prevent the drain pipe from freezing. E-11

12 Wiring Work CAUTION The electric work must be done by its service agent or similar qualified persons according to national wiring regulations. Use rated wires and parts. Switch off the main circuit breaker and the branch circuit breaker before electric work. Perform earthing work 3 without fail. An earthing resistance should be under 100Ω. The protective earthing resistance can be applied in case of using ELB(Earth Leakage Circuit Breaker). When using a ELB that has a tolerance limit as 100mA per second, the protective earthing resistance is 250Ω in an electrical danger zone, else under 500Ω. Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire. - Gas pipe: If gas leaks, explosion or ignition may occur. - Liquid pipe: Earthing has no effect in case of the water pipe made of hard vinyl. - Lighting rod or telephone wire: There is a chance of abnormal raising voltage be affected by lightening. Install 3 phase cable in order of RST when connecting main power cable of the outdoor unit. The input voltage of the indoor and outdoor unit should be within ±10% of the rated one. For details of wiring, refer to the circuit diagram attached onto the outdoor unit. The circuit diagram for wiring shows only the concept. Be sure to install the circuit breakers and fuses on the power supply cable to the outdoor units. Connect the wires to the terminals without excessive forces and arrange the wiring with the cover or other parts so that prevent it from loosing. Loose connections may cause the overheating, electrical shock and fire. Install the MCCB(Molded Case Circuit Breaker) to protect the air conditioner from excess current. E-12

13 Overall System Configuration ENGLISH Connection of the power cable (3 phase 4 wires) Switch board Indoor unit MCCB ELB 3 phase 4 wires V~ Digital Fixed Fixed 1 phase 2 wires MCCB V~ ELB Earth Outdoor communication cable Indoor communication cable Wired remote control Earth Connection of the power cable (3 phase 3 wires and 1 phase 2 wires) Switch board Indoor unit 3 phase 3 wires V~ MCCB ELB MCCB ELB 1 phase V~ Digital Fixed Fixed 1 phase 2 wires MCCB V~ ELB Earth Outdoor communication cable Indoor communication cable Wired remote control Earth CAUTION Connect the communication cable between indoor and outdoor units to the digital outdoor unit. (RVXVHT) If the communication cable between indoor and outdoor units is not connected to the digital outdoor unit, communication error may occur. Indoor power supply must be separated from outdoor power supply. Do not multiplex the communication cable to prevent communication error. Communication cable Communication cable E-13

14 Wiring Work (Continued) Specifications of the Circuit Breaker and Power Cable Subject Single unit Subject Module unit capacity (HP) Model Power cable MCCB ELB (Series) (mm2) Length (m) 8 RVXVHT080G 30A 30A, 30mA, or less 0.1 second or less ~50 10 RVXVHT100G 30A 30A, 30mA, or less 0.1 second or less ~50 12 RVXVHT120G 40A 40A, 30mA, or less 0.1 second or less ~50 14 RVXVHT140G 50A 50A, 30mA, or less 0.1 second or less ~50 Model Power cable Quantity MCCB ELB (Series) (mm2) Length (m) 16 RVXVHT080G 1 50A, 30mA, or less 50A RVXFHT080G second or less ~50 18 RVXVHT100G 1 60A, 30mA, or less 60A RVXFHT080G second or less ~50 20 RVXVHT100G 1 60A, 30mA, or less 60A RVXFHT100G second or less ~50 22 RVXVHT120G 1 60A, 30mA, or less 60A RVXFHT100G second or less ~50 24 RVXVHT140G 1 75A,100mA, or less 75A RVXFHT100G second or less ~50 26 RVXVHT140G 1 75A, 100mA, or less 75A RVXFHT120G second or less ~50 28 RVXVHT140G 1 75A, 100mA, or less 75A RVXFHT140G second or less ~50 30 RVXVHT100G 1 100A, 100mA, or less 100A RVXFHT100G second or less ~50 32 RVXVHT120G 1 100A, 100mA, or less 100A RVXFHT100G second or less ~50 34 RVXVHT140G 1 100A, 100mA, or less 100A RVXFHT100G second or less ~50 36 RVXVHT140G or less 100A, 100mA, RVXFHT140G 1 100A 0.1 second or less ~50 RVXFHT080G 1 38 RVXVHT140G or less 100A, 100mA, RVXFHT140G 1 100A 0.1 second or less ~50 RVXFHT100G 1 40 RVXVHT140G or less 125A, 100mA, RVXFHT140G 1 125A 0.1 second or less ~50 RVXFHT120G 1 42 RVXVHT140G 1 125A, 100mA, or less 125A RVXFHT140G second or less ~50 44 RVXVHT140G 1 125A, 100mA, or less 125A RVXFHT100G second or less ~50 46 RVXVHT140G 1 125A, 100mA, or less RVXFHT120G 1 125A 0.1 second or less RVXFHT100G ~50 48 RVXVHT140G or less 150A, 100mA, RVXFHT140G 1 150A 0.1 second or less ~50 RVXFHT100G 2 capacity (HP) Earth cable (mm2) Earth cable (mm2) E-14

15 Power Wiring and Communication Wiring Configuration Be sure to run the power supply cable and the communication cable through electrical conduit as seen in the picture. Protect the power and communication cable using the protection tube individually. ENGLISH Fixed Cable tube Fixed Cable tube Digital MCCB ELB Cable tube Earth CAUTION Earth Power cable Front side In case of putting the power cable to front Communication cable between indoor and outdoor units Make a knockout hole by driving in a nail. After making a knockout hole, apply rust resisting paint around the hole. Secure the cable tube to the outdoor knockout using the CD connector and bushing. Power cable Communication cable among outdoor units Communication cable Sort Size Indoor and outdoor unit VCTF 0.75~1.5mm 2 Remote controller VCTF 0.3mm 2 or more less than 200m 0.75mm 2 or more 200m or more E-15

16 Wiring Work (Continued) Power Wiring Diagram 3 phase 4 wires ( V~) 3 phase V~ Digital Fixed MCCB ELB 3 phase V~ Earth Earth Indoor Digital V~ Outdoor Indoor Fixed V~ Outdoor OF1 OF2 R S T N OF1 OF2 R S T N Earth Earth Communication cable among outdoor units Communication cable between indoor and outdoor units Connect the power cable of the outdoor unit after checking that R-S-T-N(3 phase 4 wire) is properly connected. (If 380V power cable is connected to N phase, PCB or other components may be damaged.) The communication cable between indoor and outdoor units has no polarity. Arrange the cables using cable ties. E-16

17 ENGLISH 3 phase 3 wires ( V~) and 1 phase 2 wires ( V~) 3 phase 1 phase V~ V~ Digital Fixed MCCB ELB MCCB ELB 1 phase V~ Earth 3 phase V~ Cut A part Earth Cut A part Digital Fixed Indoor Outdoor V~ Indoor Outdoor V~ OF1 OF2 R S T N OF1 OF2 R S T N Earth Earth Communication cable among outdoor units Communication cable between indoor and outdoor units V~ power is supplied separately with outdoor unit. Cut the cables of the A part. Connect the power cable of the outdoor unit after checking that R-S-T (3 phase 3 wire) is properly connected. The communication cable between indoor and outdoor units has no polarity. Arrange the cables using cable ties. CAUTION Connect the communication cable among the outdoor units when installing more than 1 outdoor unit. Connect the communication cable between indoor and outdoor units to the digital outdoor unit. If the communication cable between indoor and outdoor units and the communication cable among outdoor units are crossed, communication is not available. The length of the cable among the outdoor units should be under 30m or less. OF1 OF2 R S T N OF1 OF2 R S T N E-17

18 Wiring Work (Continued) Connecting the Power Terminal Connect the cables to the terminal board using the compressed ring terminal. Connect the rated cables only. Connect using a driver which is able to apply the rated torque to the screws. If the terminal is loose, fire may occur caused by arc. If the terminal is connected too firmly, the terminal may be damaged. Compressed terminal Cable tie Thin cable Thick cable Separate the compressed terminal up and down to prevent it being get loosen. Place the thin cable upward and the thick cable downward. Secure the power cable with the cable tie. Tightening Torque (kgf cm) M4 12.0~ phase 220V M8 56.1~ phase 380V Selecting compressed ring terminal Silver solder Norminal dimensions for cable (mm 2 ) Norminal dimensions for screw B D d1 E F L d2 t Standard Standard Standard Standard Allowance Allowance Allowance Allowance dimension dimension dimension Min. Min. Max. dimension Min. 4/ ± ± ± ± ± ± ± ± ± ± ± ± ± ± E-18

19 Power cable arrangement Power cable should be arranged as shown in the picture. Assembly a wire housing containing insulation to the unit. ENGLISH CAUTION Each wire should not be contacted with refrigerant pipes. Use proper knockout hole to arrange wires. Cable tie Installing the Earth Wire Earthing must be done by your installation specialist for your safety. Use the earth wire by referring to the specification of the electric cable for the outdoor unit. Rubber Insulation Wire housing Earthing the power cable The standard of earthing may vary according to the rated voltage and installation place of the air conditioner. Earth the power cable according to the following. Installation Power place condition Electrical potential of lower than 150V Electrical potential of higher than 150V High humidity Average humidity Low humidity Perform the earthing work 3. Note 1) The dry place Perform the earthing work 2 if possible for your safety. Note 2) Must perform the earthing work 3. Note 1) (In case of installing circuit breaker) Note 1) Earthing work 3 Earthing must be done by your installation specialist. Check if the earthing resistance is lower than 100Ω. When installing a circuit breaker that can cut the electric circuit in case of a short circuit, the allowable earthing resistance can be 30~500Ω. Note 2) Earthing at dry place The earthing resistance is should be lower than 100Ω. (It should not be higher than 250Ω) When using the terminal for earthing only When using earthing of the switch board Earth terminal Switch board E-19

20 Refrigerant Pipe Work Install the refrigerant pipe within the maximum allowable length, difference in height and length of after the first branch pipe. The pressure of the R410A is high. Use only rated refrigerant pipe and follow the installation method. Use clean refrigerant pipe which there is no harmful ion, oxide, dust, iron content or moisture. Use tools and accessories fit on R410A. Tool Work If compatible with conventional tool pipe cutter pipe cutting compatible flaring tool pipe flaring ester series oil, alkyl refrigerant oil refrigerant pipe work benzene oil or synthetic oil torque wrench pipe bender Nitrogen gas tightening test brazing tool manifold gauge tightening test ~ refrigerant refrigerant additional charging hose charging vacuum pump electronic scale vacuuming unit apply refrigerant oil on flared part connect flaring nut with pipe pipe bending inhibition of oxidization pipe brazing vacuuming, charging and checking operation compatible exclusive gas leak tester gas leak test exclusive flaring nut use indoor unit s only use one which has a check valve and 5 torr degree of vacuum. compatible Outer diameter [mm/(inch)] Size UP (Main pipe) Minimum thickness ø 6.35 (1/4) 0.8 ø 9.52 (3/8) 0.8 ø12.70 (1/2) 0.8 ø15.88 (5/8) 1.0 ø19.05 (3/4) 1.0 ø22.23 (7/8) 1.0 ø (1) 1.0 ø28.58 (1-1/8) 1.0 ø31.75 (1-1/4) 1.1 ø38.10 (1-1/2) 1.35 ø44.50 (1-5/8) 1.7 First Y-joint Temper grade C1220T-O (Soft) C1220T-1/2H (Semi-hard) Temper grade and minimum thickness of the refrigerant pipe. Selecting the Refrigerant Pipe Install refrigerant pipe depending on the outdoor unit capacity. When total pipe length is more than 90m, the diameter of pipe from the outdoor unit to the first Y-joint has to step up. Increase the refrigerant pipe up if the capacity may be reduced due to the length of the refrigerant pipe. If you can not get a pipe of Ø25.40 in the open market, a pipe of Ø28.58 is available instead. (Unit : mm) Normal installation Total length is more than 90m Oil balancing capacity (HP) Liquid side Gas side Liquid side Gas side pipe 8, 10 ø 9.52 ø ø ø , 14 ø ø ø ø , 18, 20, 22, 24 ø ø ø ø , 28, 30, 32, 34 ø ø ø ø ø , 38, 40, 42, ø ø ø ø , 46, 48 The total length includes elbows and joints over an allowable equivalent length. Should size up one grade of pipe between the outdoor unit and the first Y-joint. CAUTION Make sure to use C1220T-1/2H(Semi-hard)pipe for more than Ø19.05mm. In case of using C1220T-O(Soft) pipe for Ø19.05mm, an injury may occur because of lower resistant pressure. E-20

21 Allowable Length of the Refrigerant Pipe and the Installation Examples ENGLISH When installing 8 indoor units Using only Y-joint When installing 1 outdoor unit (8HP~14HP) Y-joint a b c d e f g p F G h i j k l m n When installing more than 1 outdoor unit (16HP~48HP) Y-joint a b c d e f g p F G h i j k l m n Using Y-joint and branch joint When installing 1 outdoor unit (8HP~14HP) Y-joint a b i Branch joint j k c d e f g h When installing more than 1 outdoor unit (16HP~48HP) Y-joint a b i Branch joint j k c d e f g h E-21

22 Refrigerant Pipe Work (Continued) Using only branch joint When installing 1 outdoor unit (8HP~14HP) a Branch joint b c d e f g h i When installing more than 1 outdoor unit (16HP~48HP) a Branch joint b c d e f g h i Ex) 34HP Fixed Fixed Digital CAUTION Cautions for installing outdoor unit pipe The connected pipe should be placed lower than service valve. 10HP 10HP 14HP SUB2 (K13:OFF K14:ON) SUB1 (K13:ON K14:OFF) The digital variable outdoor unit of the system should be placed in the end of the pipe work circuit. Fixed units should be installed nearest from the digital unit in larger order. Locate the fixed outdoor unit on digital outdoor unit side which has prior main address among equal capacity fixed outdoor units. The connected pipe should be connected from the side of the air conditioner. E-22

23 ENGLISH Using only Y-joint Using Y-joint and branch joint Using only branch joint Maximum allowable length of pipe Maximum allowable height ~ Indoor unit ~ (16HP ) ~ Indoor unit Indoor unit~ Indoor unit ~ Maximum allowable length after the first branch pipe Actual length Equivalent length Total length Actual length Height Height Height Actual length The distance between the outdoor unit and the furthest indoor unit 170m Ex) Indoor unit 8 : Ex) Indoor unit 6: a+b+h 170m Ex) Indoor unit 8: a+i 170m a+b+c+d+e+f+g+p 170m The distance between the outdoor and the furthest indoor unit 190m (The equivalent length of Y-joint :0.5m, The equivalent length of branch joint : 1m) The total distance from the outdoor unit to all indoor units 300m The distance between the outdoor joint and the outdoor unit 10m, Equivalent length 13m H1: Difference of highest between the outdoor unit and indoor unit < 50m, When the outdoor unit is lower < 40m H2: Difference of highest among the indoor units 15m H3: Difference of highest among the outdoor units 5m The distance between the first Y-joint and the indoor unit 45m Ex) Indoor unit 8 : b+c+d+e+f+g+p 45m/ Indoor unit 6 : b+h 45m/Indoor unit 8 : i 45m The distance between the EEV kit and indoor unit 20m r 10m(Equivalent length 13m) s 10m(Equivalent length 13m) t 10m(Equivalent length 13m) Selecting the Y-joint, branch joint and outdoor joint Select the first Y-joint depending on the outdoor unit capacity. Select the other Y-joints and branch joints depending on the total capacity of attached indoor units below the selected joint individually. Selecting the first Y-joint Outdoor capacity (HP) Y-joint model 8, 10 MXJ-YA , 14 MXJ-YA , 18, 20, 22, 24 MXJ-YA , 28, 30, 32, 34 MXJ-YA , 38, 40, 42, 44, 46, 48 MXJ-YA3819 Outdoor joint Outdoor capacity (HP) Outdoor joint model 16 ~48 MXJ-T3819 The other Y-joint Total capacity of attached indoor units Y-joint model below this Y-joint (kw) X < 22.4 MXJ-YA X < 33.0 MXJ-YA X < 47.0 MXJ-YA X < 71.0 MXJ-YA X < MXJ-YA X MXJ-YA3819 Branch joint Total capacity of attached indoor units below this Branch joint model branch joint (kw) X < 47.0 MXJ-HA X < 71.0 MXJ-HA X MXJ-HA3819 E-23

24 Refrigerant Pipe Work (Continued) Fixed Fixed Digital A When installing more than 1 outdoor unit and first Y-joint B Among the outdoor units C connection D Oil balancing pipe Selecting the refrigerant pipe A Installing pipes between more than 1 outdoor unit and first Y-joint - Select the size depending on the outdoor unit capacity. total capacity (HP) Liquid side Gas side 8, 10 ø9.52 ø , 14 ø12.70 ø , 18, 20, 22, 24 ø15.88 ø , 28, 30, 32, 34 ø19.05 ø , 38, 40, 42, 44, 46, 48 ø19.05 ø38.10 Between Y-joints - Select it depending on attached indoor units. Indoor unit total capacity (kw) Liquid side Gas side X < 22.4 ø9.52 ø X < 33.0 ø9.52 ø X < 47.0 ø12.70 ø X < 71.0 ø15.88 ø X < ø19.05 ø X ø19.05 ø B Among the outdoor units - Depend on the total capacity of attached outdoor units. capacity (HP) Liquid side Gas side X < 26 ø15.88 ø X < 36 ø19.05 ø X ø19.05 ø38.10 C connection - Depend on the outdoor unit capacity (HP) Liquid side Gas side 8, 10 ø9.52 ø , 14 ø12.70 ø25.40 D Oil balancing pipe - Applicable only 16HP or more capacity (HP) All diameters X 16 ø6.35 The amount of basic charge HP Factory charged (kg) 8/ / Liquid side pipe Basic charging for pipes (kg/m) ø ø ø ø ø ø Selecting additional refrigerant charge Depends on the total length of the liquid side pipe. A = + Liquid side pipe ø22.23 Total pipe length(m) X Liquid side pipe ø19.05 Total pipe length(m) X 0.27 Liquid side pipe ø Liquid side pipe ø9.52 Total pipe length(m) X Total pipe length(m) X Liquid side pipe ø15.88 Total pipe length(m) X Liquid side pipe ø6.35 Total pipe length(m) X 0.02 Example of calculating additional refrigerant: In case of 30HP outdoor unit a : Ø19.05 X 30m d : Ø9.52 X 10m g : Ø6.35 X 10m j : Ø6.35 X 10m b : Ø15.88 X 10m e : Ø9.52 X 10m h : Ø6.35 X 10m k : Ø6.35 X 9m c : Ø9.52 X 10m f : Ø9.52 X 10m i : Ø12.70 X 10m Pipe diameter Ø22.23 Ø19.05 Ø15.88 Ø12.70 Ø9.52 Ø6.35 Total length (m) A = 30 X X X X X 0.02 = 15.38(kg) E-24

25 Keeping Refrigerant Pipe Clean and Dry To prevent foreign materials or water from entering the pipe, it is important to keep the refrigerant pipe and to seal it while installing. ENGLISH Brazing the Pipe Make sure that there is no moisture inside the pipe. Make sure that there are no foreign materials and impurities in the pipe. Replacement of Nitrogen gas 1 Use Nitrogen gas when brazing the pipes as shown in the picture. 2 If you don t use Nitrogen gas when brazing the pipes, oxide may form in the pipe. It can cause the damage of the compressor, valves. 3 Adjust the flow rate of the replacement with a pressure regulator to maintain 0.05m 3 /h or less. Brazing part 1/4" copper pipe Nitrogen gas Pressure regulator Stop valve Taping 4 Perform brazing of the service valve after protecting the valve. Service valve Wet towel E-25

26 Refrigerant Pipe Work (Continued) Cutting or Flaring the Pipes 1 Make sure that you prepared the required tools. (pipe cutter, reamer, flaring tool and pipe holder) 2 If you want to shorten the pipe, cut it using a pipe cutter ensuring that the cut edge remains at 90 with the side of the pipe. There are some examples of correctly and incorrectly cut edges below. Oblique Rough Burr 3 To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer. 4 Carry out flaring work using flaring tool as shown below. Flaring tool A York Die Clutch type Wing nut type Die Copper pipe Flare nut Copper pipe A Outer diameter Flare tool for Conventional flare tool R410A clutch type Clutch type Wing nut type ø ~ ~ ~2.0 ø ~ ~ ~2.0 ø ~ ~ ~2.0 ø ~ ~ ~2.0 5 Check if you flared the pipe correctly. There are some examples of incorrectly flared pipes below. Inclined Damaged Surface Cracked Uneven Thickness 6 Outer diameter Connection Torque (kgf cm) Flare dimension ø ~ ~9.10 ø ~ ~13.20 ø ~ ~16.60 ø ~ ~ ±2 45 ±2 Flare shape R 0.4~0.8 E-26 CAUTION In case of needing brazing, you must work with Nitrogen gas blowing.

27 Connecting the Outdoor Unit Pipe The refrigerant pipe can be installed to the front and side. Select appropriate method depending on the installation place. ENGLISH 8HP ~ 14HP Oil balancing pipe (Not used for 8~14HP outdoor units) Flange (Check the rubber ring) Gas side pipe Liquid side pipe Flange (Check the rubber ring) Flare nut Knockout hole (Make a knockout hole) < Front installation > < Side installation > Liquid side pipe Gas side pipe 16HP ~ 48HP Flange (Check the rubber ring) Flare nut Gas side pipe Liquid side pipe Oil balancing pipe Flange (Check the rubber ring) Flare nut Knockout hole (Make a knockout hole) Use accessories Liquid side pipe Gas side pipe Oil balancing pipe < Front installation > < Side installation > E-27

28 Refrigerant Pipe Work (Continued) Installing the Y-Joint Install the Y-joint horizontally or vertically. < Install horizontally> < Install vertically> Note When using A~J type of Y-joint, connect the Y-joint to the pipe with provided socket. When using K~Z type of Y-joint, connect Y-joint to the pipe by cutting the inlet of the Y-joint or provided socket properly. 10~15mm or more CAUTION Make certain of a minimum distance in straight line. Rear To other branching pipe or indoor unit Pipe in use Pipe in use Socket on the site on the site Rear Gas/Liquid side Y-joint Front To outdoor unit Install the Y-joint within ±15 from the horizontal or vertical line. Main pipe 500mm or more E-28

29 Installing the Branch Joint ENGLISH 1 Select the socket fit on the diameter of the pipe. Brazing part Provided Socket Pipe used in the field Pipe used in the field Socket Pipe used in the field side Indoor unit side side Indoor unit side < Liquid side > < Gas side > 2 Block the socket that is not used by brazing the cap if the number of connected indoor unit is fewer than branch joint holes. In order Brazing part Provided In order Socket < Liquid side > When the end of the branch joint is sealed Socket < Gas side > When the end of the branch joint is sealed Note Connect the branch joint in order respecting the number of the indoor unit. Connect the branch joint of high capacity indoor unit first among them. When using A~J type of Branch joint, connect the Branch joint to the pipe with provided socket. When using K~Z type of Branch joint, connect the Branch joint to the pipe by cutting the provided socket properly. 10~15mm or more 3 Install the branch joint horizontally. - Install the branch joint horizontally so that it is not facing down. Socket Branch joint Horizontal line Pipe used in the field ±10 or less Horizontal line ±15 or less Horizontal line ±15 or less Horizontal line Horizontal line ±10 or less < Liquid side > < Gas side > E-29

30 Refrigerant Pipe Work (Continued) Installing the Outdoor Joint Use the attached socket at the liquid side along with the selected pipe size. To other outdoor unit Pipe in use on the site To other outdoor joint or outdoor unit Socket at the liquid side Socket at the liquid side Pipe in use on the site To other outdoor joint or Y-joint of the main pipe <Liquid side> Use the attached socket at the gas side along with the selected pipe size. To other outdoor unit Note Socket at the gas side Pipe in use on the site Socket at the gas side Pipe in use on the site To other outdoor joint or Y- joint of the main pipe To other outdoor joint or outdoor unit <Gas side> To other outdoor unit When using A~J type of Outdoor joint, connect the Outdoor joint to the pipe with provided socket. When using K~Z type of Outdoor joint, connect the Outdoor joint to the pipe by cutting provided socket properly. To other outdoor joint or outdoor unit Installation of outdoor joints Fixed outdoor unit Digital outdoor unit Fixed outdoor unit 10~15mm or more Digital outdoor unit Oil balancing joint connection part Liquid pipe Gas pipe connection part connection part E-30 Liquid pipe Gas pipe Oil balancing joint Do not install the outdoor joint in this direction.

31 Insulating the refrigerant pipe You must check if there is a gas leak before completing all the installation process. Use EPDM insulation which meets the following condition. Item Unit Standard Remarks Density g/cm ~0.096 Dimension change route by heat % -5 or less KSM Water absorption rate g/cm or less Thermal conductivity kcal/m h C or less KSL Moisture transpiration factor ng/(m² s Pa) 15 or less KSM Moisture transpiration grade g/(m² 24h) 15 or less KSA Formaldehyde dispersion mg/l - KSF Oxygen rate % 25 or less ISO ENGLISH Insulating the refrigerant pipe Be sure to insulate the refrigerant pipe, joints and connections with class 'o' material. If you insulate the pipes, the condensed water does not fall from the pipes and the capacity of the air conditioner is improved. Check if there are any insulation cracks on the bent pipe. Insulation Clamp Indoor unit Gas side pipe Liquid side pipe Selecting the insulation of the refrigerant pipe Insulate the gas side and liquid side pipe referring to the thickness according to the pipe size. The thickness according to the pipe size is a standard of the indoor temperature of 27 C and humidity of 80%. If installing in an unfavorable conditions from it, use thicker one. Minimum thickness Pipe size of insulation Remarks PE foam EPDM foam ø6.35~ If you install the pipe ø22.23 ~ underground, at the seaside, ø a spa or on the lake, use thicker one according to the pipe size. Refrigerant pipe before EEV kit or without EEV kit You can contact the gas side and liquid side pipes but the insulation should not be pressed. When contacting the gas side and liquid side pipe, use thicker insulation. Indoor unit Insulation Gas pipe Insulation Install the insulation to be overlapped Insulation Liquid pipe Refrigerant pipe after EEV kit When installing the gas side and liquid side pipes, leave 10mm of space. When contacting the gas side and liquid side pipe, use thicker insulation. 10mm 10mm 10mm CAUTION Install the insulation not to be get wider and use the adhesives on the connection part of it to prevent moisture entering. Wind the refrigerant pipe with insulation tape if it is exposed to outside sunlight. Install the refrigerant pipe respecting that the insulation does not get thinner on the bent part or hanger of pipe. Gas pipe Liquid pipe E-31

32 Performing the Refrigerant Gas Leak Test Use tools for R410A to prevent the inflow of foreign substances and resist against the internal pressure. Do not remove the core of filling port. Use dry Nitrogen gas as doing an airtight test like below. Manifold gage Low pressure side High pressure side Filling port Gas side pipe Oil balancing pipe Liquid side pipe Nitrogen gas Apply pressure to the liquid side pipe, gas side pipe and oil balancing pipe(16hp or more) with Nitrogen gas of 4.1MPa(41kgf/cm²) If you apply pressure more than 4.1MPa(41kgf/cm²), the pipes may be damaged. Apply pressure using pressure regulator. Keep it for minimum 24 hours to check if the pressure drops. After applying Nitrogen gas, check the change of pressure using pressure regulator. If the pressure drops, check if there s gas leak. If the pressure is changed, apply soapy water to check the leak. Check the pressure of the gas again. Maintain 10kgf/cm² of the pressure before performing vacuum drying and check further gas leak. After checking first gas leak, maintain 10kgf/cm² to check further gas leak. E-32

33 Preparing and Charging the Refrigerant Pipe ENGLISH Vacuum Drying Use the tools for R410A to prevent the inflow of foreign substances and resist against the internal pressure. Vacuum system to 5Torr (100.7KPa, 755mmHg). Use the vacuum pump with the check valve to prevent pump oil from flowing backward while the vacuum pump is stopped. Close the service valve of the liquid side pipe, gas side pipe and oil balancing pipe completely. Connect the manifold gauge to the liquid side pipe, gas side pipe and oil balancing pipe(16hp or more). Connect the manifold gauge to the oil balancing pipe when using the outdoor unit of 16HP or more. Perform vacuum drying of the liquid side pipe, gas side pipe and oil balancing pipe(16hp or more) using the vacuum pump. Make sure that install check valve to prevent pump oil from flowing into the pipe. Perform vacuum drying for 2 hours and 30 minutes or more. The time of vacuum drying may differ depending on the length of the pipe or outdoor temperature. Perform vacuum drying for at least 2 hours and 30 minutes. Close the valve after checking the vacuum gauge pressure has reached at 5Torr. The pressure rises. No Yes Check the vacuum pressure using the vacuum gauge. Check the gas leak part. - The pressure rises because water is remaining in the pipe. Vacuum destruction - Apply pressure with Nitrogen gas of 0.5kgf/cm². Adding refrigerant Perform vacuum drying again up to 5Torr (for 2 hours or more). No The pressure rises. Yes E-33

34 Preparing and Charging the Refrigerant Pipe (Continued) Charging Refrigerant The R410A refrigerant is blended refrigerant. Add only liquid refrigerant. Measure the quantity of the refrigerant depending on the length of the liquid side pipe. Add fixed quantity of the refrigerant using a scale. When installing 1 outdoor unit(8hp ~ 14HP) Gas side Liquid side R410A Manifold gauge Service valve Scale Vacuum pump When installing more than 1 outdoor unit(16hp ~ 48HP) Manifold gauge Liquid side Gas side Oil equalization R410A Scale Service valve Vacuum pump Open the manifold gauge valve of the liquid side service valve and add the liquid refrigerant. If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid side service valve. Add remaining refrigerant by pressing the refrigerant adding button of the outdoor PCB. CAUTION Open the gas side and liquid side service valve completely after charging the refrigerant. (If you operate the air conditioner with the service valve closed, the important parts may be damaged.) When using the outdoor unit of 16HP or more, open the service valve of the oil balancing pipe. E-34

35 ENGLISH Collecting Refrigerant (to empty refrigerant vessel) Prior to collect refrigerant about 50 percent of total amount to empty refrigerant vessel. In case of large module system, total amount of refrigerant like that system is in excess of holding capacity of outdoor units. 1 Connect as below then operate indoor units under 50 percent of system. 2 If high pressure is over 3MPa(30kgf/cm²), operate indoor units a bit less. 3 Collect refrigerant as open the low pressure side of manifold gage and valve of refrigerant vessel. Manifold gage Low pressure side High pressure side Filling port Gas side pipe Oil balancing pipe Liquid side pipe An empty refrigerant vessel scale CAUTION Do before Pump Down operation. Collection refrigerant is under capacity of a refrigerant vessel. Refer to the service manual about specific information of refrigerant collecting operation. E-35

36 Setting the Option Switch and Function of the Keys Option switches in PCB of the outdoor unit K5 K6 K7 K8 K9 K10 K11 K12 K13 K14 K15 K16 K17 K18 K19 K20 K21 K22 K23 K24 SW01 SW02 SW03 SW04 SW05 SW06 Switch Setting Function Remarks SW01 SW02 Combine SW01 and SW02 ex) SW01-1, SW02-2 : 12 indoor units are installed To set the total quantity of installed indoor units Set only for digital outdoor unit K5 ON OFF Manual address setting Auto address setting Indoor unit main address setting method select If it is selected OFF, indoor unit main address sets automatically SW03 SW05 SW06 K6 ON Comp.1 normal operation OFF Comp.1 operation skip K7 ON Comp.2 normal operation Back-up operation while Compressor should be OFF Comp.2 operation skip compressor broken replaced as soon as possible K8 ON Comp.3 normal operation OFF Comp.3 operation skip K13 ON K14 ON Set as main outdoor unit Main unit set Set only digital outdoor unit K13 ON K14 OFF Set as sub1 outdoor unit Sub unit set The next digital outdoor unit K13 OFF K14 ON Set as sub2 outdoor unit Sub unit set The next sub 1 unit K13 OFF K14 OFF Set as sub3 outdoor unit Sub unit set The next sub 2 unit The furthest length between outdoor unit and indoor unit: Max. length K17 ON K18 ON Max. length 30m Pressure drop compensation Factory setting K17 ON K18 OFF 30m<Max. length 80m Pressure drop compensation K17 K18 OFF ON 80m<Max. length Pressure drop compensation When the pipe is increased up between outdoor unit and first Y-joint K17 K18 OFF OFF 80m<Max. length Pressure drop compensation E-36

37 Key operation ENGLISH Check mode RESET View mode K1 (Number of pressing) Name Function Display on LED 1 Adding refrigerant in heating mode When adding refrigerant to the unit 2 Test operation for heating When conduct a test run on heating mode 3 Refrigerant discharge from Main unit To repair the main unit 4 Refrigerant discharge from Sub1 unit To repair the sub1 unit 5 Refrigerant discharge from Sub2 unit To repair the sub2 unit 6 Refrigerant discharge from Sub3 unit To repair the sub3 unit 7 Oil recovery to outdoor unit in heating 8 Set Main unit for vacuum mode 9 Set Sub1 unit for vacuum mode 10 Set Sub2 unit for vacuum mode 11 Set Sub3 unit for vacuum mode 12 Set all units for vacuum mode Oil return from pipe to the outdoor unit Main unit to be ready for vacuum after repair Sub1 unit to be ready for vacuum after repair Sub2 unit to be ready for vacuum after repair Sub3 unit to be ready for vacuum after repair All units to be ready for vacuum after repairing 13 Finish K1 mode End of K1 mode K2 (Number of pressing) Name Function Display on LED 1 Adding refrigerant in cooling mode When adding refrigerant to the unit 2 Test operation for cooling When conduct a test run on cooling mode 3 Refrigerant collection to All unit To repair indoor unit, pipe and so on 4 Oil recovery to outdoor unit in cooling Oil return from pipe to the outdoor unit 5 Finish K2 mode End of K2 mode K3 (Number of pressing) Name Function Remarks 1 Reset the unit To reset the unit K4 (Number of pressing) - Data display Name Function Remarks Display datas of outdoor unit in operation For further information, see the label on the outdoor unit. E-37