Gree RFX12A Owner'S Manual Download Page 23 | Manualshive

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BU Module

19

4)

Pass the screw through the round terminals and fix it onto the terminal block.

Fig. 26

6.6 Procedures for Electrical Wiring Work

1)

Unscrew the electrical equipment plate.

2)

The structure of behind the electrical equipment plate.

a) FXA2A-D and

RFX12A

b) FXA3A-D and

RFX13A

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Summary of Contents for RFX12A

Page 1: ...R410A Systems BU module Owner s Manual Gree Air Conditioners FXA2A D FXA3A D RFX12A RFX13A Thank you for choosing Gree air conditioners please read this owner s manual carefully before operation and keep it for future reference ...

Page 2: ...then the indoor unit will send the start signal to the outdoor unit three minutes later after the power recovery The power cable and transmission line must not be twisted together but instead of separated with an interval of at least 2cm otherwise it may be result in communication problem This appliance is not intended for use by persons including children with reduced physical sensory or mental c...

Page 3: ... 5 Installation of Refrigerant Pipes 11 5 1 Manifold Mode of Connecting Pipe 11 5 2 Allowable Length and Drop Height of Connecting Pipe 12 5 3 Installation of Piping Adapter FXA2A D and FXA3A D 12 5 4 Installation of Piping Adapter RFX12A and RFX13A 13 5 5 Precaution for Connection 15 6 Electrical Wiring Work 17 6 1 Wiring Connection 17 6 2 Requirements of Power Circuit and Cable 17 6 3 Ground Req...

Page 4: ......

Page 5: ...dule 1 1 Safety Precautions Warning It indicates improper operation might lead to human casualty or sever injury Caution It indicates that improper operation might lead to personal injury or property damage ...

Page 6: ...le 2 GREE is not responsible of personal injury or equipment damage caused by improper installation and commission unnecessary service and incapable of following the rules and instructions listed in the manual ...

Page 7: ...tion location such as the ceiling of parlor corridor balcony storeroom and etc 2 1 Names of Main Parts a FXA2A D b FXA3A D c R F X 1 2 A d R F X 1 3 A NO ķ ĸ Ĺ ĺ Name Gas piping of indoor unit side Liquid piping of indoor unit side Electrical equipment plate Hanger metal NO Ļ ļ Ľ ľ Name Liquid piping of outdoor unit side Gas piping of outdoor unit side Drain hole Printed circuit board Fig 1 2 2 Co...

Page 8: ...or units which include cassette type duct type wall mounted type floor ceiling type and console type The outdoor unit will run as long as any one indoor unit receives the running command and all indoor units stop once the outdoor unit is turned off Fig 2 2 4 Working Temperature Range Table 2 Sorts Outside temperature DB WB ć Maximum 50 Minimum 15 ...

Page 9: ...hstand the weight of the module and the mounting surface must be horizontal plane The BU module can be chosen to install in the ceiling such as the ceiling of parlor corridor balcony storeroom and etc There is enough space for the installation and maintenance Avoid direct sunlight or other heat sources exist Do not install in location that is hot or humid for long periods of time Avoid the BU modu...

Page 10: ...A2A D 1 Outline dimension Fig 3 mm Table 3 Indoor unit side mm Sorts Port A Port B Outdoor unit side mm Liquid pipe ĭ6 35 ĭ6 35 ĭ9 52 Gas pipe ĭ9 52 ĭ9 52 ĭ15 9 2 Installation and service space NO ķ ĸ Ĺ Name Servicing space Ceiling Electrical box side Fig 4 mm ...

Page 11: ...tline dimension Fig 5 mm Table 4 Indoor unit side mm Sorts Port A Port B Port C Outdoor unit side mm Liquid pipe ĭ6 35 ĭ6 35 ĭ6 35 ĭ9 52 Gas liquid ĭ9 52 ĭ9 52 ĭ9 52 ĭ15 9 2 Installation and service space NO ķ ĸ Ĺ Name Servicing space Ceiling Electrical box side Fig 6 mm ...

Page 12: ...RFX12A 1 Outline dimension Fig 7 mm Table 5 Indoor unit side mm Sorts Port A Port B Outdoor unit side mm Liquid pipe ĭ6 5 ĭ6 5 ĭ9 7 Gas pipe ĭ16 3 ĭ16 3 ĭ16 3 2 Installation and service space NO ķ ĸ Ĺ Name Servicing space Ceiling Electrical box side Fig 8 mm ...

Page 13: ...utline dimension Fig 9 mm Table 6 Indoor unit side mm Sorts Port A Port B Port C Outdoor unit side mm Liquid pipe ĭ6 5 ĭ6 5 ĭ6 5 ĭ9 7 Gas liquid ĭ16 3 ĭ16 3 ĭ16 3 ĭ16 3 2 Installation and service space NO ķ ĸ Ĺ Name Servicing space Ceiling Electrical box side Fig 10 mm ...

Page 14: ...the condensed water can be discharged 2 Reference to the size of hanger metal and drill 4 holes in the installation location 3 Hang the hanger bolts Fig 11 4 Fix the modules securely with the hanger bolts You can get the M10 or M8 hanger bolts nuts and washers from the market Fig 12 mm 5 Adjusting the nuts position so that the BU module should be level in front back and left right ...

Page 15: ...e 1 For only one BU module there will not be more than three indoor units Fig 13 2 For two BU modules there will not be more than six indoor units Fig 14 3 For three BU modules there will not be more than nine indoor units Outdoor unit Indoor unit BU 1 BU 2 BU 3 A B Branch pipe Fig 15 ...

Page 16: ...U and BU modules H3 15 Maximum allowable length Between indoor and indoor units H4 15 Between outdoor and the 1st branch L1 5 Minimum allowable length Between BU and the branch L3 L4 L5 as possible as short BU module should be placed within the level between the outdoor unit and indoor unit 5 3 Installation of Piping Adapter FXA2A D and FXA3A D If the piping connection size of BU module does not m...

Page 17: ...port of BU module indoor side does not connected to one indoor unit the port must be sealed to prevent refrigerant leaks Please tighten the flaring nuts of the unconnected port with torque wrench until you hear a click 5 4 Installation of Piping Adapter RFX12A and RFX13A If the piping connection size of BU module does not match with that of the outdoor unit and indoor units it should prevail with ...

Page 18: ...U module wrap the pipes to be brazed with sufficient wet cloths Ĺ After brazing use wet cloths to cool off the pipes to be brazed sufficient Fig 20 3 Sealing the unconnected port If the port of BU module indoor side does not connected to one indoor unit the port must be sealed to prevent refrigerant leaks ķ Select the appropriate piping adapter ĸ Pinch the end of the chosen piping Ĺ To avoid heat ...

Page 19: ...or unit and indoor units should be as small as possible 2 The brazing operation must be strictly in accordance with the process requirements During the installation do not damage the pipeline 5 5 2 The process of flaring ķ Using the tube cutter to cut the connecting pipe in the appropriate place and remove the burrs ĸ Install the nut before the flaring operation Ĺ Check the flared portion whether ...

Page 20: ...lease do not tighten it with spanners because the screw thread may be broken by force Ĺ Tighten the flaring nuts with torque wrench until you hear a click The spanner and torque wrench should be perpendicular to the refrigerant pipeline ĺ The following table for the torque required to tighten the nuts Table 9 Pipe diameter Thickness of copper tube Tightening torque ĭ6 35 mm 0 8 mm 15 30 N m ĭ9 52 ...

Page 21: ... mm2 Recommended cable of indoor unit Pieces Sectional area 4 0 75mm2 MULTI48HP230V1AO 40A MULTI56HP230V1AO 40A Capacity of the air switch BU module 10A Note The total length of the transmission line between the outdoor unit and the furthest BU module is not more than 55m Otherwise the system cannot work possibility The specifications of the power cable and transmission line listed in the table ab...

Page 22: ...pe c Sewage pipe d Lightning rod e Telephone line f Other unreliable places considered by a professional 6 4 Precautions on the Electrical Wiring Work The ground connection should be reliable and the ground wire should be connected to the dedicated device of the building by the professional The electric installation should be carried out by the professional as instructed by the local laws regulati...

Page 23: ...e round terminals and fix it onto the terminal block Fig 26 6 6 Procedures for Electrical Wiring Work 1 Unscrew the electrical equipment plate 2 The structure of behind the electrical equipment plate a FXA2A D and RFX12A b FXA3A D and RFX13A ...

Page 24: ... to the other BU module please connect the extra line to the N 1 2 terminals with the sign of BU 7 Connect the power cable of the indoor unit to the N 1 2 and 3 terminals with the sign of Indoor unit A B and C and as well as the ground screw 8 Fix the power cable and transmission line firmly by cable fixing clip 9 Screw the electrical equipment plate Caution The transmission line and the power cab...

Page 25: ... multi BU modules and the address cannot be repeated in the same unit One outdoor unit can connect to no more than 3 BU modules ON side means ON and the opposite side represents OFF Note The black part is lever Table 11 DIP Code Number DIP 1 DIP 2 Icon Address 1 OFF OFF BU 1 2 OFF ON BU 2 3 ON OFF BU 3 ...

Page 26: ...here there might be water bends 2 The drainage pipeline is form of the hard PVC pipes for common purposes which can be purchased locally The diameter of the PVC pipes is not less than 31mm and the pipeline should be fixed as close to the BU module as possible 3 Insert the drain hose into the drain hole of drainage pipeline Use binding band to fix it tightly It is not allowed to use adhesive glue t...

Page 27: ...Flash 1 time BU 2 is connected Flash 2 times BU 3 is connected Flash 3 times Indoor unit A is connected Flash 1 time Indoor unit B is connected Flash 2 times Indoor unit C is connected Flash 3 times Indoor unit A gas tube temperature sensor error Flash 1 time b7 b7 indoor unit address Indoor unit A liquid tube temperature sensor error Flash 2 times b5 b5 indoor unit address Indoor unit B gas tube ...

Page 28: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Add West Jinji Rd Qianshan Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 E mail gree gree com cn www gree com ...

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