Gree GRS-CQ6.0Pd/Na-K Service Manual
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Gree GRS-CQ6.0Pd/Na-K Service Manual

Air-to-water heat pump
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Air-to-Water Heat Pump
Service Manual
(T1/R410A/50Hz)
GREE ELECTRIC APPLIANCES INC. OF ZHUHAI

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Summary of Contents for Gree GRS-CQ6.0Pd/Na-K

  • Page 1 Air-to-Water Heat Pump Service Manual (T1/R410A/50Hz) GREE ELECTRIC APPLIANCES INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    GREE COMMERCIAL AIR CONDITIONERS AIR-TO-WATER HEAT PUMP CONTENTS PRODUCT .............................. 1 1 MODELS LIST ..........................1 1.1 Main Unit ..........................1 1.2 Water Tank ..........................2 2 NOMENCLATURE .......................... 2 2.1 Main Unit ..........................2 2.2 Water Tank ..........................3 3 FUNCTION............................

  • Page 3: Product

    GREE COMMERCIAL AIR CONDITIONERS AIR-TO-WATER HEAT PUMP PRODUCT...

  • Page 4: Models List

    PRODUCT 1 MODELS LIST 1.1 Main Unit Nominal Power Model Appearance Capacity Supply Refrigerant Model Name (V,Ph,Hz) Outdoor Unit Indoor Unit GRS-CQ6.0Pd/Na-K GRS-CQ8.0Pd/Na-K GRS-CQ10Pd/Na-K 220～240V 1Ph 50Hz GRS-CQ12Pd/Na-K R410A GRS-CQ14Pd/Na-K GRS-CQ16Pd/Na-K GRS-CQ12Pd/Na-M 380～415V GRS-CQ14Pd/Na-M 3Ph 50Hz GRS-CQ16Pd/Na-M Note:1Ton =12000Btu/h = 3.517kW...

  • Page 5: Water Tank

    SXVD200LCJ2/A-K SXVD200LCJ2/A-M SXVD300LCJ2/A-K SXVD300LCJ2/A-M 2 NOMENCLATURE 2.1 Main Unit （I） 16 Pd Description Options GREE Air to water heat pump Heat Pump Water Heater Heating Mode: circulating Multi Heat pump Nominal Heating capacity, 16 kW DC Inverter Refrigerant Type Na-R410A...

  • Page 6: Water Tank

    AIR-TO-WATER HEAT PUMP PRODUCT 2.2 Water Tank Description Options Tank Used In Heat Pump Heat Pump Water Tank for GMV Units Electric Heater Volume Of Tank Stand Pressure-Resistant Static heating with dual coiled pipe Design Sequence Number Power Supply K=220~240V-1Ph-50Hz,M=380~415V-3Ph-50Hz 3 FUNCTION 3.1 Cooling In cooling mode: the refrigerant is condensed in the outdoor unit and evaporated in...

  • Page 7: Heating+ Water Heating

    AIR-TO-WATER HEAT PUMP PRODUCT the heat pump gives priority to cooling. In that case, water heating can only realized with e-heater of the water tank. Inversely, the heat pump gives priority to water heating and switches to cooling after finishing water heating； 3.5 Heating+ Water Heating When heating mode exists together with the water heating mode, the user can set the priority of these two modes based on the needs.

  • Page 8: Product Data

    AIR-TO-WATER HEAT PUMP PRODUCT 4 PRODUCT DATA 4.1 Product Data at Rated Condition 4.1.1 Outdoor AIR TO WATER HEAT PUMP GRS-CQ GRS-CQ GRS-CQ GRS-CQ GRS-CQ 6.0Pd/N 8.0Pd/Na- Model 10Pd/Na- 12Pd/Na 14Pd/Na- a-K(O) K(O) K(O) -K(O) K(O) Heating(floor heating) Capacity Cooling(floor cooling) 10.5 Power Heating(floor heating)
  • Page 9 AIR-TO-WATER HEAT PUMP PRODUCT AIR TO WATER HEAT PUMP GRS-CQ12P GRS-CQ14P GRS-CQ16P GRS-CQ16P Model d/Na-M(O) d/Na-M(O) d/Na-M(O) d/Na-K(O) Heating(floor heating) Capacity Cooling(floor cooling) 15.5 15.5 Heating(floor heating) 3.33 3.90 Power Input Cooling(floor cooling) 4.28 4.62 Cooling(floor cooling) 3.35 Heating(floor heating) 4.00 Heating(Fan coil...
  • Page 10 AIR-TO-WATER HEAT PUMP PRODUCT 4.1.2 Indoor INDOOR UNIT GRS-CQ GRS-CQ GRS-CQ GRS-CQ GRS-CQ Model 6.0Pd/Na 8.0Pd/Na 10Pd/Na 12Pd/Na 14Pd/Na -K(I) -K(I) -K(I) -K(I) -K(I) Power Supply 220～240V/1Ph/50Hz Ph /Hz Rated 3200 6200 input (indoor only) Liquid side diameter 9.52(3/8) 6.35(1/4) (inch) Gas side diameter 15.9(5/8)
  • Page 11 AIR-TO-WATER HEAT PUMP PRODUCT INDOOR UNIT GRS-CQ16P GRS-CQ12P GRS-CQ14 GRS-CQ16 Model d/Na-K(I) d/Na-M(I) Pd/Na-M(I) Pd/Na-M(I) 220～ Power Supply 380～415V/3Ph/50Hz 240V/1Ph/50 Rated 6200 input (indoor only) mm(in Liquid side diameter 9.52(3/8) mm(in Gas side diameter 15.9(5/8) Cooling (FCU) 7-25 ℃ Operation Cooling (Floor ) 18-25 ℃...

  • Page 12: Operation Range

    AIR-TO-WATER HEAT PUMP PRODUCT 4.1.3 Water Tank (optional) SXVD200LC_/A-K SXVD300LC_/A-K SXVD200LC_/A-M SXVD300LC_/A-M Models Water Tank Volume Electric Heater Power 3000 DN15 Outer diameter Cool Water inch Inlet Pipe Screw thread spec 1/2″Female BSP DN15 Outer diameter Hot Water inch Outlet Pipe Screw thread 1/2″Female BSP spec...

  • Page 13: Electrical Data

    PRODUCT 4.3 Electrical Data Minimum Minimum Leakage Sectional Area of Power Supply Sectional Area of Model Switch Power Supply Earth Wire Wire V Ph Hz GRS-CQ6.0Pd/Na-K(I) 3×6 GRS-CQ8.0Pd/Na-K(I) 3×10 GRS-CQ10Pd/Na-K(I) 3×10 GRS-CQ12Pd/Na-K(I) 3×10 GRS-CQ14Pd/Na-K(I) 3×10 GRS-CQ16Pd/Na-K(I) 3×10 220~240V-Ph-50Hz GRS-CQ6.0Pd/Na-K(O) 3×6 GRS-CQ8.0Pd/Na-K(O)

  • Page 14: Piping Diagram

    AIR-TO-WATER HEAT PUMP PRODUCT 5 PIPING DIAGRAM OUTDOOR UINT INDOOR UINT 1 compressor 19 expansion tank 10 electric heater 2 four-way valve 20 safety valve 11 flow switch 3 finned coil exchanger 12 3-way valve R1T plate outlet temperature sensor 4 fan motor 13 2-way valve R2T Liquid line temperature sensor...
  • Page 15 GREE COMMERCIAL AIR CONDITIONERS AIR-TO-WATER HEAT PUMP CONTROL...

  • Page 16: Units Control

    AIR-TO-WATER HEAT PUMP CONTROL UNITS CONTROL 1 OPERATION FLOWCHART 2 MAIN LOGIC 2.1 Defrosting Mode 2.1.1 The condition of start defrosting mode: Under heating mode or water heating mode, if the accumulative running time of compressor is over the set interval time of defrosting（default 50min） ，and the defrosting temperature(outdoor unit heat exchanger temperature) is lower than the set starting temperature(default -4℃) ,the unit will start running defrosting, and the 4-way valve will shut off and the outdoor fan will stop...

  • Page 17: Water-Side Auto Anti-Freezing In Winter

    AIR-TO-WATER HEAT PUMP CONTROL 2.1.2 The condition of quit defrosting mode: Under defrosting mode, if the continual defrosting time is over the set continual time of defrosting（default 10min） ，and the defrosting temperature is over the set stopping temperature(default 15℃) ,the unit will restart running heating mode, and the 4-way valve will turn on and the outdoor fan will run.

  • Page 18: Wired Controller

    AIR-TO-WATER HEAT PUMP CONTROL Electric expansion valve will not be adjusted within 3 min after the unit operates. 3 WIRED CONTROLLER 3.1 Dimension 3.2 Function 3.2.1 Operation View...
  • Page 19 AIR-TO-WATER HEAT PUMP CONTROL Name Function description Heating/Cooling on/off Press the button to turn on or turn off Heating operation or ① button Cooling operation ② LCD display Display unit information ③ Increasing button Press this button to increase the parameter(winking) ④...
  • Page 20 AIR-TO-WATER HEAT PUMP CONTROL Cooling mode This icon indicates that the cooling mode is active. Weather This icon indicates that the weather depending mode is active. depending mode and in Timing Silent mode, this icon will flashing; Sanitary heating This icon indicates that the sanitary heating mode is active. mode In urgent sanitary heating model, the icon will flash.
  • Page 21 AIR-TO-WATER HEAT PUMP CONTROL 3.2.3 Operation Instruction 3.2.3.1 Operation and Stop of the Unit Without thermostat, press button, Heat or Cool mode will operate. Heat mode icon or Cool mode icon will display. Press button again to exit Heat or Cool mode. If there is water tank, press button and the sanitary heating mode will act.
  • Page 22 AIR-TO-WATER HEAT PUMP CONTROL 3) If the air function is on and the mode is heating mode, press button, and the weather depending mode will act. The weather depending mode icon will show. Press button again. The weather depending mode will stop. If the unit is turned on (with air function or sanitary water function), press...
  • Page 23 AIR-TO-WATER HEAT PUMP CONTROL ② With malfunction of sanitary water tank electric heater, malfunction of the first sanitary water tank temperature sensor, the urgent sanitary heating model is not available. 3.2.3.3 Parameter Setting Press button to enter user function setting menu. Icon will show.
  • Page 24 AIR-TO-WATER HEAT PUMP CONTROL Press button to enter function parameter setting mode. The function parameter is flashing. Press button to adjust parameters.
  • Page 25 AIR-TO-WATER HEAT PUMP CONTROL button to save the desired parameter. Press Repeat step 2 to 5 to set other function parameters. Press button or button to return the main menu.
  • Page 26 AIR-TO-WATER HEAT PUMP CONTROL Table of user function parameter Code Function description Detail Range Setting temperature selection: 0: leaving water Selection for setting temperature as temperature 0~1(default: 0) room temperature or outflow water 1: room temperature temperature 0: no Forced operation 1: Forced cooling Forced Operation operation...
  • Page 27 AIR-TO-WATER HEAT PUMP CONTROL -20～18℃(default: Setting turn on temperature of back-up heater(indoor unit) 0℃) 40-50℃(default: Setting maximum water tank temperature heated by heat pump cycle 50℃) 40-70℃(default: Setting heating temperature disinfection operation 70℃) -20～5℃(default: Setting lower temperature Weather-dependent operation -15℃) 10～20℃(default: Setting upper...
  • Page 28 AIR-TO-WATER HEAT PUMP CONTROL Note: ① Before setting the forced operation，please turn off the unit； ② When the forced cooling/Heating operation is set，press ON/OFF button in the ③ control panel. The unit will start running. ④ Press ON/OFF button in the control panel. forced operation mode will be finished.
  • Page 29 AIR-TO-WATER HEAT PUMP CONTROL If code 8 is set as 0，that means priority is cooling operation. The heat pump will always run in space cooling （include floor cooling） mode. In this case sanitary water is only heated by electric heater. On the other hand，If code 8 is set as 1，that means priority is sanitary heating.
  • Page 30 AIR-TO-WATER HEAT PUMP CONTROL Function code 14 ：Quantity of tank sensor If code 14 is set as 1, there is only one temperature sensor on the sanitary water tank； If code 14 is set as 2, there are two temperature sensors on the sanitary water tank；...
  • Page 31 AIR-TO-WATER HEAT PUMP CONTROL to 55 . The high temperature cycle suitable for FCU or radiator is equipped ℃ ℃ in the water loop. If code 19 is set as 1, in space heating， the unit will be operated by low temperature cycle.
  • Page 32 AIR-TO-WATER HEAT PUMP CONTROL cooling mode; This value requires frequent On and Off of the unit. Function code 26: Setting temperature gap from target temperature of heating operation Setting the temperature gap from target temperature (outflow water or room air) in heating mode;...
  • Page 33 AIR-TO-WATER HEAT PUMP CONTROL Press button to select the function code that you want to set. button to enter function parameter setting mode. The function Press parameter is flashing. Press button to adjust desired parameter. Press button to save the desired parameter. Repeat step 2 to 5 to set other function parameter, or press button or button to return to the main menu.
  • Page 34 AIR-TO-WATER HEAT PUMP CONTROL 3.2.3.6. Set target temperature Press button or button to turn on the unit Press repeatedly button to select one target temperature: room temperature, outflow water temperature, sanitary water tank temperature, and solar outflow water temperature. The setting temperature is blinking.
  • Page 35 AIR-TO-WATER HEAT PUMP CONTROL leaving water temperature (solar kit is installed) ③ Room temperature setting is available when you have selected room temperature as control target. ④ Please refer function code 01. ⑤ In heating mode, if weather depending mode is activated, you can’t set the room temperature or outflow water temperature.
  • Page 36 AIR-TO-WATER HEAT PUMP CONTROL 3.2.3.7. View temperature Press button to enter viewing temperature interface. Icon will show Press button to select one temperature code. The table of view temperature Temperature Function description code Outer ambient temperature Suction temperature Discharge temperature Defrost temperature The temperature of liquid pipe inside refrigerant Inlet temperature...
  • Page 37 AIR-TO-WATER HEAT PUMP CONTROL Sanitary water tank temperature 1 Room temperature The temperature of gas pipe inside refrigerant Other thermal outlet temperature Press button or button to return to the main menu. The system will automatically release without any input after 20 seconds. 3.2.3.8.
  • Page 38 AIR-TO-WATER HEAT PUMP CONTROL Press button to adjust desired hour. button to save the setting hour and the system will automatically enter Press setting current minute mode. The current setting minute is blinking.
  • Page 39 AIR-TO-WATER HEAT PUMP CONTROL Press button to adjust desired minute. button to save the setting minute and the system will automatically enter Press setting current day mode. The current setting day is blinking.
  • Page 40 AIR-TO-WATER HEAT PUMP CONTROL Press button to adjust desired button to save the setting day and the system will automatically return to Press main menu. The current time has been set successfully.
  • Page 41 AIR-TO-WATER HEAT PUMP CONTROL 3.2.3.9. Set timer (1) Set 24 hour reservation or 24 hour decrease reservation Press repeatedly button to select setting 24 hour reservation or 24 hour decrease reservation. 24 hour reservation icon or 24 hour decrease reservation show.
  • Page 42 AIR-TO-WATER HEAT PUMP CONTROL Press button to select the operation mode of the 24 hour reservation or 24 hour decrease reservation (heating mode , cooling mode , sanitary heating mode , heating mode + sanitary heating mode , cooling mode sanitary heating mode Press button to save the operation mode of the 24 hour reservation or 24...
  • Page 43 AIR-TO-WATER HEAT PUMP CONTROL Press button to select ON/OFF of the 24 hour reservation or 24 hour decrease reservation (on mode , or off mode button to save ON/OFF mode of the 24 hour reservation or 24 hour Press decrease reservation and the system will automatically enter next step. If ON mode is selected, it will enter step 6, or step 8.
  • Page 44 AIR-TO-WATER HEAT PUMP CONTROL Press button to adjust target temperature of the 24 hour reservation or 24 hour decrease reservation. Press button to save the target temperature of the 24 hour reservation or 24 hour decrease reservation and system will automatically enter the interface of adjusting hour of the 24 hour reservation or 24 hour decrease reservation.
  • Page 45 AIR-TO-WATER HEAT PUMP CONTROL Press button to adjust hour of the 24 hour reservation or 24 hour decrease reservation. button to save the hour of the 24 hour reservation or 24 hour decrease Press reservation and the system will automatically enter the interface of adjusting minute of the 24 hour reservation or 24 hour decrease reservation.
  • Page 46 AIR-TO-WATER HEAT PUMP CONTROL 10) Press button to adjust minute of the 24 hour reservation or 24 hour decrease reservation. 11) Press button to save the minute of the 24 hour reservation or 24 hour decrease reservation and the system will automatically return to main menu. 24 hour reservation or 24 hour decrease reservation has been set successfully.
  • Page 47 AIR-TO-WATER HEAT PUMP CONTROL (2) Set weekly reservation Press repeatedly button to select weekly reservation. The weekly reservation icon will display. The default operation model will flash. Press button to select the operation mode of the weekly reservation (heating mode , cooling mode , sanitary heating mode , heating mode...
  • Page 48 AIR-TO-WATER HEAT PUMP CONTROL action of this day. 12) Press button to adjust hour of stop time in the first action of this day. 13) Press button to save the hour of stop time in the first action of this day and system will automatically enter adjusting minute mode of stop time in the first action of this day.
  • Page 49 AIR-TO-WATER HEAT PUMP CONTROL button or button to return to the main menu. (4) View timer---Timing Press “Timer set” in the main menu for 5 seconds to enter “timing” menu. There won’t be any response if there is no timing. Hour timing (ON or OFF) indicates relevant icon;...
  • Page 50 AIR-TO-WATER HEAT PUMP CONTROL Weekly timing indicates relevant icon. Press “▲” or “▼” button to check which weekday were set. The selected weekday flashes. Press “Set” to view the set time. Press “▲” or “▼” to view the next setting times.
  • Page 51 AIR-TO-WATER HEAT PUMP CONTROL Count down setting (ON or OFF) indicates relevant icon. The numbers indicate the time being set to turn on or turn off the unit automatically. Press “Return” or “Esc” menu to exit current timing menu and return to the main menu. If there is no operation in 20 seconds, the system will exit current setting menu automatically.
  • Page 52 AIR-TO-WATER HEAT PUMP CONTROL During child lock, ‘EE’ will display always, and nothing will happen whenever entering any kind of buttons except for button for 5 seconds. Press button for 5 seconds again to exit this. 3.2.3.11 Timing Silent When the wired controller shows the main interface, press “Timer set” & “Silent” button for 5 seconds to enter timer silent interface.
  • Page 53 AIR-TO-WATER HEAT PUMP CONTROL Steps for Setting Timer Silent Press “▲” and “▼” button to adjust starting hour. Press “Set” button to save the adjustment and set starting minute. Press “▲” and “▼” button to adjust starting minute. Press “Set” button to save the adjustment and to set stopping hour, with “OFF”...
  • Page 54 AIR-TO-WATER HEAT PUMP CONTROL Press “▲” and “▼” button to adjust stopping hour. Press “Set” button to save the adjustment and set stopping minute.
  • Page 55 AIR-TO-WATER HEAT PUMP CONTROL Press “▲” and “▼” button to adjust stopping minute. Press “Set” button to save the adjustment and return to main interface. Then the timing silent function is set successfully.
  • Page 56 AIR-TO-WATER HEAT PUMP CONTROL During operation, press “Return” or “Esc” button to save the adjustment and return to main interface. But the timing silent function is not set successfully. 3.2.3.12 Timing Temperature ● When the wired controller shows the main interface, press “Timer set” & “Temp set” for 5 seconds to enter timing temperature setting interface.
  • Page 57 AIR-TO-WATER HEAT PUMP CONTROL ● Steps for setting timing temperature Step 1: Select timing temperature mode Selection of timing temperature mode: the last timing temperature mode is defaulted. Heat mode is defaulted upon first energization. Press “▲” and “▼” button to select timer mode, including heating and cooling.
  • Page 58 AIR-TO-WATER HEAT PUMP CONTROL Step 2: Set timing temperature of the first period The last timing temperature of the first period is defaulted. (The defaulted time is 8： 00 upon initial energization. If the reference point is indoor temperature, the defaulted temperature is 20 for cooling and 26 for heating.
  • Page 59 AIR-TO-WATER HEAT PUMP CONTROL and to set starting minute of first period. Press “▲” and “▼” button to adjust starting minute. Press “Set” to save the adjustment,...
  • Page 60 AIR-TO-WATER HEAT PUMP CONTROL and to set timing temperature of the first period. Press “▲” and “▼” button to adjust temperature. Press “Set” to save the adjustment and to set timing temperature of the second period. During operation, press “Return” or “Esc” button to save the set value and return to main interface.
  • Page 61 AIR-TO-WATER HEAT PUMP CONTROL Step 3: Set timing temperature of the second period The last timing temperature of the first period is defaulted. (The defaulted time is 17： 00 upon initial energization. If the reference point is indoor temperature, the defaulted temperature is 20 for cooling and 26 for heating.
  • Page 62 AIR-TO-WATER HEAT PUMP CONTROL Press “▲” and “▼” button to adjust starting minute. Press “Set” to save the adjustment and to set timing temperature of the second period. Press “▲” and “▼” button to adjust temperature.
  • Page 63 AIR-TO-WATER HEAT PUMP CONTROL Press “Set” to save the adjustment. During operation, press “Return” or “Esc” button to save the set value and return to main interface. The unset items are defaulted to be the last set values.
  • Page 64 AIR-TO-WATER HEAT PUMP CONTROL 3.2.3.13 Set address Press button to enter address viewing mode. button to enter address setting mode, address is flashing. Press desired address (Range:0~125,127-253) Press button to adjust button to save the desired address. Press...
  • Page 65 AIR-TO-WATER HEAT PUMP CONTROL Press button or button to return to the main menu. The system will automatically release without any input after 20 seconds. 3.2.3.14 Error Code Display When the error is occurred to indoor unit or outdoor unit, the error code will be displayed on control panel.

  • Page 66: Installation

    AIR-TO-WATER HEAT PUMP CONTROL Malfunction of the first sanitary water tank temperature sensor Malfunction of gas pipe temperature sensor inside refrigerant Malfunction of other thermal outlet temperature sensor Malfunction of remote room temperature sensor Malfunction of water switch Indoor anti-frozen protetion No display Over temperature of sanitary water tank temperature Over temperature of outlet temperature(This error code will not displayed on wired...
  • Page 67 AIR-TO-WATER HEAT PUMP CONTROL (2). Manually remove the LCD of wired controller with caution. (3). After LCD is removed, unplug communication line according Fig 4. (4). Then remove three retaining screws on mounted plate. The following disassembly methods are incorrect. Disassembly from top Disassembly from bottom...

  • Page 68: Control Wiring Design

    AIR-TO-WATER HEAT PUMP CONTROL Disassembly from left side Disassembly from right sid 4 CONTROL WIRING DESIGN Diplay board Indoor Unit CN66 AP1 Outdoor Unit Eletric box Eletric box Main board Main board Long-distance Minitor PC Installation Instruction : (1). Wired controller connects to terminal CN6 on mainboard of indoor unit by 4-core communication line.

  • Page 69: Installation

    GREE COMMERCIAL AIR CONDITIONERS AIR-TO-WATER HEAT PUMP INSTALLATION...

  • Page 70: Installation Of Units

    AIR-TO-WATER HEAT PUMP INSTALLATION INSTALLATION 1 INSTALLATION OF UNITS 1.1 Installation Positions 1.1.1 Installation Positions of Outdoor Outdoor unit must be installed on a firm and solid support. Outdoor unit shall be installed close to the indoor unit, hence to minimize the length and bends of cooling pipe.

  • Page 71: Matters Need Attention

    Please contact your dealer after buying this machine. Professional installation workers will provide installation and test services according to installation manual. Do not connect to power until all installation work is completed. 1.3 Dimension Data 1.3.1 Outdoor GRS-CQ6.0Pd/Na-K(O),GRS-CQ8.0Pd/Na-k(O),GRS-CQ10Pd/Na-K(O)：...
  • Page 72 AIR-TO-WATER HEAT PUMP INSTALLATION GRS-CQ12Pd/Na-K(O),GRS-CQ14Pd/Na-K(O),GRS-CQ16Pd/Na-K(O)： GRS-CQ12Pd/Na-M(O),GRS-CQ14Pd/Na-M(O),GRS-CQ16Pd/Na-M(O)：...
  • Page 73 AIR-TO-WATER HEAT PUMP INSTALLATION 1.3.2 Indoor GRS-CQ6.0Pd/Na-K(I),GRS-CQ8.0Pd/Na-k(I),GRS-CQ10Pd/Na-K(I), GRS-CQ12Pd/Na-K(I),GRS-CQ14Pd/Na-K(I),GRS-CQ16Pd/Na-K(I), GRS-CQ12Pd/Na-M(I),GRS-CQ14Pd/Na-M(I),GRS-CQ16Pd/Na-M(I)：...
  • Page 74 AIR-TO-WATER HEAT PUMP INSTALLATION Install process of indoor unit Step1：Drilling hole on the wall in the following draw expansion bolt hole unit outline Step2：Releasing screws, detach front cover from the indoor unit.
  • Page 75 AIR-TO-WATER HEAT PUMP INSTALLATION Step3：Attaching indoor unit to the wall make use of accessory expansion bolt Expansion bolt Install wall ！ C CAUTION! While lifting the indoor unit, at least two persons should be joined. Weight of the indoor unit is almost 52kg. Precautions on Installation of Indoor Unit Indoor unit shall be vertically mounted on the wall of the room with expansion bolt.
  • Page 76 AIR-TO-WATER HEAT PUMP INSTALLATION 1.3.3 Installation of Insulated Water Tank 1.3.3.1 Installation Measure The insulated water tank should be installed and keep levelly within 5m and vertically within 3m from the Indoor unit. It can be installed in the room. Standing water tank must be installed vertically with the bottom on the ground, never suspended.
  • Page 77 AIR-TO-WATER HEAT PUMP INSTALLATION Note: For safe use of water, water outlet/inlet of water tank must connect with a certain length of PPR pipe ,L ≥70×R （cm，R is inside radius of the pipe）. Moreover, heat preservation should be conducted and metal pipe can not be used. For the first use, water tank must be full of water before the power is on.
  • Page 78 AIR-TO-WATER HEAT PUMP INSTALLATION SXVD200LCJ/A-K SXVD200LCJ2/A-K SXVD300LCJ/A-K SXVD300LCJ2/A-K SXVD200LCJ/A-M SXVD200LCJ2/A-M SXVD300LCJ/A-M SXVD300LCJ2/A-M 200L 200L 300L 300L Litre coil SUS304 Ф22X0.8 specification coil length 18.5m 18.5m D(mm) D1(mm) 1595 1620 H(mm) A(mm) B(mm) C(mm) E(mm) F(mm) I(mm) 247.5 202.5 J(mm) K(mm) Outline (Diameter×H) Φ540X1595...
  • Page 79 AIR-TO-WATER HEAT PUMP INSTALLATION After connection of all waterway pipelines, perform leakage test firstly (refer to debugging of the unit). After that, bind up the water pipes, water temp sensor and wires with wrapping tapes attached with the unit. Refer to Installation Sketch of Unit for details. Indoor Unit Other Thermal sensor (less than 5 meters) Water Tank...

  • Page 80: Installation Clearance Data

    AIR-TO-WATER HEAT PUMP INSTALLATION 1.3.4 Electric Wiring 1.3.4.1 Wiring Principle General principles Wires, equipment and connectors supplied for use on the site must be in compliance with provisions of regulations and engineering requirements. Only electricians holding qualification are allowed to perform wire connection on the site.
  • Page 81 AIR-TO-WATER HEAT PUMP INSTALLATION...
  • Page 82 AIR-TO-WATER HEAT PUMP INSTALLATION (1). Water Volume and Pump capacity Note: ① The water pump is three speed-adjustable(maximum/medium/minimum), In most case, we strongly recommended to set speed as maximum; ② If the noise of the pump is not acceptable, we recommended change the default speed to medium speed, but to secure enough flow rate, do not set water speed as “Min”, it can lead unexpected flow rate error “EC”;...
  • Page 83 AIR-TO-WATER HEAT PUMP INSTALLATION Note: ① Expansion vessel is included which 10 liter and 1bar pre-pressure. ② Total water volume of 280 liter is default; if total water is changed because of installation condition, the pre-pressure should be adjusted to secure proper operation.
  • Page 84 AIR-TO-WATER HEAT PUMP INSTALLATION expansion vessel. Example 2： The indoor unit is installed on the highest spot of the water system and the total water volume is 350L. ① As the volume of water system is higher than 280L, it is necessary to adjust the pressure of the expansion vessel be lower.

  • Page 85: Connection Of Pipeline

    AIR-TO-WATER HEAT PUMP INSTALLATION 3. Filling of Refrigerant Before shipped out from manufacturer, the outdoor unit has been filled with refrigerant. Additional refrigerant may be filled when carrying out site connection of pipelines. Check the liquid valve and the gas valve of the outdoor unit. The valves shall be completely shut off.
  • Page 86 AIR-TO-WATER HEAT PUMP INSTALLATION Bend of fitting pipe shall not be too low; otherwise the fitting pipe might crack. Please use pipe bender when bending the fitting pipe. When connecting outdoor and indoor unit, never pull the big and small joint of indoor unit with force, so as to prevent the tubes of indoor unit from cracking and causing leakage.
  • Page 87 AIR-TO-WATER HEAT PUMP INSTALLATION Pipe size Length B Elevation A Additional model (Diameter:Φ) refrigerant Liquid Standard Max. Standard Max. GRS-CQ6.0Pd/Na-K 5.0m 20g/m 1/2" 1/4" GRS-CQ8.0Pd/Na-K 7.5m 50g/m 5/8" 3/8" GRS-CQ10Pd/Na-K 7.5m 50g/m 5/8" 3/8" GRS-CQ12Pd/Na-K 7.5m 50g/m 5/8" 3/8" GRS-CQ14Pd/Na-K 7.5m...

  • Page 88: Electric Wiring Work

    AIR-TO-WATER HEAT PUMP INSTALLATION Note: ① No additional charge of the refrigerant is need when the pipe length is less than 10 m (the standard pipe length is 7.5m) , f the pipe length is longer than 10 m ,additional charge of the refrigerant is needed according to the table.

  • Page 89: Pcb Outline

    AIR-TO-WATER HEAT PUMP INSTALLATION 2.2 PCB Outline (1). GRS-CQ6.0Pd/Na-K(O).GRS-CQ8.0Pd/Na-K(O).GRS-CQ10Pd/Na-K(O) Silk Screen Specification AC-L Live wire input of power supply, red Neutral wire input of power supply, white Ground wire, yellow green L2-2 PFC blue inductive wire L1-1 PFC brown inductive wire...
  • Page 90 AIR-TO-WATER HEAT PUMP INSTALLATION (2). GRS-CQ12Pd/Na-K(O).GRS-CQ14Pd/Na-K(O).GRS-CQ16Pd/Na-K(O) Silk Screen Specification AC-L Live wire input of power supply, red Neutral line input of power supply（PFC blue inductive wire） blue L1-1 PFC brown inductive wire PFC yellow inductive wire L2-1 PFC white inductive wire L1-2 U-phase of compressor V-phase of compressor...
  • Page 91 AIR-TO-WATER HEAT PUMP INSTALLATION (3). GRS-CQ12Pd/Na-M(O).GRS-CQ14Pd/Na-M(O).GRS-CQ16Pd/Na-M(O) silk screen specification live wire input of power supply Neutral line input of power supply Reactor red inductive wire U-phase of compressor V-phase of compressor W-phase of compressor DC fan 1 pin：strong power supply；3 pin：fan GND；4 pin：+15V；5 DC_MOTOR1 pin：control signal；6 pin：feedback signal；...
  • Page 92 AIR-TO-WATER HEAT PUMP INSTALLATION (4). GRS-CQ6.0Pd/Na-K(I).GRS-CQ8.0Pd/Na-K(I).GRS-CQ10Pd/Na-K(I). GRS-CQ12Pd/Na-K(I).GRS-CQ14Pd/Na-K(I).GRS-CQ16Pd/Na-K(I) GRS-CQ12Pd/Na-M(I).GRS-CQ14Pd/Na-M(I).GRS-CQ16Pd/Na-M(I) Silk Screen Location Specification AC-L live wire of power supply Neutral wire of power supply PUMP1 live wire of indoor water pump PUMP2 live wire of solar water pump running indicator HEAT3-L...

  • Page 93: Electric Wiring Design

    AIR-TO-WATER HEAT PUMP INSTALLATION 2.3 Electric Wiring Design 2.3.1 Wiring Diagram: Indoor Unit GRS-CQ6.0Pd/Na-K(I),GRS-CQ8.0Pd/Na-K(I),GRS-CQ10Pd/Na-K(I),GRS-CQ12Pd/Na- K(I) ,GRS-CQ14Pd/Na-K(I),GRS-CQ16Pd/Na-K(I): Indoor Unit POWER 2-way N(2) valve1 2-way valve2 Specification: 3-way 1 If there is gate control function, valve1 pull out the leading wire 50 on...
  • Page 94 AIR-TO-WATER HEAT PUMP INSTALLATION 2.3.2 Wiring Diagram: Outdoor Unit GRS-CQ6.0Pd/Na-K(O),GRS-CQ8.0Pd/Na-K(O),GRS-CQ10Pd/Na-K(O): GRS-CQ12Pd/Na-K(O),GRS-CQ14Pd/Na-K(O),GRS-CQ16Pd/Na-K(O):...
  • Page 95 AIR-TO-WATER HEAT PUMP INSTALLATION GRS-CQ12Pd/Na-M(O), GRS-CQ14Pd/Na-M(O), GRS-CQ16Pd/Na-M(O): 2.3.3 Wiring Diagram: Water Tank SXVD200LCJ/A-K, SXVD200LCJ2/A-K, SXVD300LCJ/A-K, SXVD300LCJ2/A-K:...
  • Page 96 AIR-TO-WATER HEAT PUMP INSTALLATION SXVD200LCJ/A-M, SXVD200LCJ2/A-M, SXVD300LCJ/A-M, SXVD300LCJ2/A-M: T herm ostat1 T herm ostat2 W P 9 5 A -R (W P 8 5 A -R ) H e a te r...
  • Page 97 AIR-TO-WATER HEAT PUMP INSTALLATION Wiring Diagram: Indoor and Outdoor Unit (Including Field Wiring) GRS-CQ6.0Pd/Na-K, GRS-CQ8.0Pd/Na-K, GRS-CQ10Pd/Na-K, GRS-CQ12Pd/Na-K, GRS-CQ14Pd/Na-K, GRS-CQ16Pd/Na-K: Error indicating lamp Running indicating lamp...
  • Page 98 AIR-TO-WATER HEAT PUMP INSTALLATION GRS-CQ12Pd/Na-M, GRS-CQ14Pd/Na-M, GRS-CQ16Pd/Na-M: Error indicating lamp Running indicating lamp...
  • Page 99 AIR-TO-WATER HEAT PUMP INSTALLATION 2.3.5 Terminal Board Information GRS-CQ6.0Pd/Na-K, GRS-CQ8.0Pd/Na-K, GRS-CQ10Pd/Na-K, GRS-CQ12Pd/Na-K, GRS-CQ14Pd/Na-K, GRS-CQ16Pd/Na-K Terminal board 3 24 25 26 27 28 Thermostat(1) Thermostat(2) Terminal Board 1 power supply for Water tank electric heater N(2) Connecting external electric power supply for Indoor Unit...
  • Page 100 AIR-TO-WATER HEAT PUMP INSTALLATION GRS-CQ12Pd/Na-M, GRS-CQ14Pd/Na-M, GRS-CQ16Pd/Na-M: Terminal Board 2 Connection for Gate Control Fuction Indicating lihgt 10 11 12 16 17 18 19 20 Connection for Client 2 way value(1) 2 way value(2) Connection for 3 way value(1) 3 way value(2) water's AC contactor Accident lihgt Terminal Board 1...
  • Page 101 AIR-TO-WATER HEAT PUMP INSTALLATION 1.3.6 Connecting with External Electric GRS-CQ6.0Pd/Na-K, GRS-CQ8.0Pd/Na-K, GRS-CQ10Pd/Na-K, GRS-CQ12Pd/Na-K, GRS-CQ14Pd/Na-K, GRS-CQ16Pd/Na-K Water Tank CN15 CN14 CN13 CN12 CN11 CN10 Water -Tank Temp Sensor1 N(2) Water -Tank Temp Sensor2 External Power Supply (230V 50Hz AC)
  • Page 102 AIR-TO-WATER HEAT PUMP INSTALLATION GRS-CQ12Pd/Na-M, GRS-CQ14Pd/Na-M, GRS-CQ16Pd/Na-M Water Tank CN15 CN14 CN13 CN12 CN11 CN10 Water -Tank Temp Sensor1 Water -Tank Temp Sensor2 External Power Supply (380-415V 50Hz 3N ) 2.3.7 2-Way Valve 2-way valve is required to control water flow while cooling operation. Role of 2way valve is to cut off water flow into under floor loop in cooling mode when fan coil unit is equipped for cooling operation.
  • Page 103 AIR-TO-WATER HEAT PUMP INSTALLATION (1) : Normal Open type. When electric power is NOT supplied, the valve is open. (When electric power is supplied, the valve is closed.) (2) : Normal Closed type. When electric power is NOT supplied, the valve is closed. (When electric power is supplied, the valve is open.) How to Wire 2-Way Valve Follow below procedures Step 1 ~ Step 2.
  • Page 104 If there is gate control function, pull out the leading wire 50 on terminal board（XT2） between19 and 20 and then connect the Gate-controller Installation Guide follow as: Gate-controller GREE does not supply this section 2.3.10 Remote Air Temperature Sensor Front side...
  • Page 105 AIR-TO-WATER HEAT PUMP INSTALLATION R em ote A ir Tem perature Sensor 1.5 M eters D oors Note: ① Distance between the indoor unit and the remote air temperature senor should be less than 15 meter due to length of the connection cable of remote air temperature sensor.
  • Page 106 AIR-TO-WATER HEAT PUMP INSTALLATION Thermostat: 22 23 27 28 Heat Heat Cool Cool (230V) (24V) Fig 1 22 23 27 28 Heat Heat (230V) (24V) Fig 2 (L) : Live signal from PCB to thermostat (N): Neutral signal from PCB to thermostat How to Wire Thermostat Uncover the front cover of the indoor unit and open the control box。...
  • Page 107 GREE COMMERCIAL AIR CONDITIONERS AIR-TO-WATER HEAT PUMP MAINTENANCE...

  • Page 108: Units Maintenance

    AIR-TO-WATERHEATPUMP MAINTENANCE UNITS MAINTENANCE 1 ERROR CODE LIST Complete Unit Code Code Error Name Source of Error Signal Control Description Indication plug temperature sensor correctly Outdoor environment connected to the socket on It will be automatically cleared mainboard. temp sensor error after the failure is removed.
  • Page 109 AIR-TO-WATERHEATPUMP MAINTENANCE Comp High-pressure switch is broken or the wiring is loose. The water in the tank is not enough. De-energize the unit and then, Comp High-pressure The installation of tank temp energize again. protection sensor is not correct. malfunction is removed, the The gas valve and liquid valve code will be cleared.
  • Page 110 AIR-TO-WATERHEATPUMP MAINTENANCE communication line are not mounted with magnetic ring. outdoor unit electrically powered The sensor is damaged. High pressure sensor The wire of the sensor is loose. It will be automatically cleared error The position of the sensor is after the failure is removed.
  • Page 111 AIR-TO-WATERHEATPUMP MAINTENANCE sensor is not correct. plug temperature sensor correctly Gas pipe temperature connected to the socket on It will be automatically cleared sensor inside refrigerant mainboard. after the failure is removed. error The resistance of temperature sensor is not correct. plug temperature sensor...
  • Page 112 AIR-TO-WATERHEATPUMP MAINTENANCE Mainboard of outdoor unit is damaged. The resistance of temperature sensor is not correct. plug temperature solar outlet High-temp sensor correctly No display Press ON/OFF key to clear connected to the socket on protection mainboard. Mainboard of outdoor unit is damaged.
  • Page 113 AIR-TO-WATERHEATPUMP MAINTENANCE Drive Failure Code Display on Nixie Display on Item Tube of Outdoor Remarks Wired Controller Unit Reset of Drive System Startup Failure of Compressor Phase Protection Lock Overspeed Current protection of compressor Communication failure Sensor failure of heat sink Overheat protection of heat sink...

  • Page 114: Flow Chart Of Troubleshooting

    AIR-TO-WATERHEATPUMP MAINTENANCE 2 FLOW CHART OF TROUBLESHOOTING （1）Comp High-pressure Protection Comp High-pressure protection E1 Check if the High-pressure switch Replace the High-pressure is broken switch Check if the High-pressure switch Replace the wiring wiring is loose. Check if the water in Fill the tank with the water the tank is enough Check if the installation of...
  • Page 115 AIR-TO-WATERHEATPUMP MAINTENANCE (2) Comp Low- pressure Protection E3 （3）Comp Discharge Temp Protection E4...
  • Page 116 AIR-TO-WATERHEATPUMP MAINTENANCE (4) Overload proection of compressor or driver error E5 (5) Outdoor fan error EF...
  • Page 117 AIR-TO-WATERHEATPUMP MAINTENANCE (6) Temperature sensor error (7) Communication Malfunction E6...

  • Page 118: Diagnosis Of Driving

    AIR-TO-WATERHEATPUMP MAINTENANCE 3 DIAGNOSIS OF DRIVING （1）Overvoltage of direct current bus: It is detected that the voltage of direct current bus is over 420V after energization. If the protection occurs for 6 times within one hour, it can not be resumed unless it is deenergized and reenergized. （2）Under-voltage of direct current bus: It is detected that the voltage of direct current bus is lower than 200V after startup of the unit.

  • Page 119: Diagnosis Flowchart Of Driving Of Single-Phase Unit

    AIR-TO-WATERHEATPUMP MAINTENANCE 3.1 Diagnosis Flowchart of Driving of Single-phase Unit 3.1.1 PFC Abnormality Fig. 3.1.1 Flowchart of diagnosis of PFC abnormality 3.1.2 IPM Protection The reasons may be: ● Untight screws of IPM module ● damaged IPM module ● defective radiating of IPM module ●...
  • Page 120 AIR-TO-WATERHEATPUMP MAINTENANCE ● wire connection error with PFC ● wrong cement resistance RS1-RS3 of driving ● abnormal compressor ● interference Fig. 3.1.2 Flowchart of diagnosis of IPM protection...
  • Page 121 AIR-TO-WATERHEATPUMP MAINTENANCE 3.1. 3 Trip Fig. 3.1.3 Flowchart of trip diagnosis...
  • Page 122 AIR-TO-WATERHEATPUMP MAINTENANCE 3.1.4 Abnormal Noise of PFC Inductor Generally, the continuous and minute sound of inductor is normal. Abnormal noise of PFC inductor refers to discontinuous and obvious noise. The reasons may be: PFC malfunction abnormal output of driving Fig.3.1.4 Flowchart of PFC inductor abnormal noise diagnosis...
  • Page 123 AIR-TO-WATERHEATPUMP MAINTENANCE 3.1.5 Superheat Protection of Radiating Fin Fig 3.1.5 Flowchart of diagnosis of radiator superheat protection...
  • Page 124 AIR-TO-WATERHEATPUMP MAINTENANCE 3.1.6 Overvoltage Protection of DC Bus Fig. 3.1.6 Flowchart of diagnosis of DC bus overvoltage protection...
  • Page 125 AIR-TO-WATERHEATPUMP MAINTENANCE 3.1.7 Under-voltage Protection of DC bus Fig. 3.1.7 Flowchart of diagnosis of DC bus under-voltage...

  • Page 126: Diagnosis Flowchart Of Driving Of Three-Phase Unit

    AIR-TO-WATERHEATPUMP MAINTENANCE 3.2 Diagnosis Flowchart of Driving of Three-phase Unit 3.2.1 IPM Module Protection Fig. 3.2.1 Flowchart of diagnosis of IPM Module Protection...

  • Page 127: Method Of Testing Ipm Module Short Circuit

    AIR-TO-WATERHEATPUMP MAINTENANCE Method of Testing IPM Module Short Circuit: (1). Preparation before test: prepare a universal meter and turn to its diode option, and then remove the wires U, V, W of the compressor after it is powered off for one minute.
  • Page 128 AIR-TO-WATERHEATPUMP MAINTENANCE 3.2.2 Radiator Overheating Protection Fig. 3.2.2 Flowchart of diagnosis of Radiator Overheating Protection...
  • Page 129 AIR-TO-WATERHEATPUMP MAINTENANCE 3.2.3 Tripping Fig. 3.2.3 Flowchart of diagnosis of Tripping...
  • Page 130 AIR-TO-WATERHEATPUMP MAINTENANCE 3.2.4 DC Bus Low Voltage Protection Fig. 3.2.4 Flowchart of diagnosis of DC Bus Low Voltage Protection...
  • Page 131 AIR-TO-WATERHEATPUMP MAINTENANCE 3.2.5 DC Bus High Voltage Protection Fig. 3.2.5 Flowchart of diagnosis of DC Bus High Voltage Protection...
  • Page 132 AIR-TO-WATERHEATPUMP MAINTENANCE 3.2.6 Open Phase E5 is displayed on the wired controller Monitor Main Board 88 Display Indicating Lamp Open Phase Check if wire U/V/W is connected reliably after Connect wires reliably the power is cut off for 1 minute. If the terminal wiring of the compressor is reliable?
  • Page 133 AIR-TO-WATERHEATPUMP MAINTENANCE 3.2.7 Communication Error between the Indoor and Outdoor Units E6 is displayed on the nixie tube of the outdoor unit indicating the communication error between the indoor and outdoor units Check if the connection See if the error is Check if both the indoor of the power cords of the eliminated after the...

  • Page 134: Disassembly And Assembly Procedure Of Main Parts

    4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS Disassembly and assembly of external casing Remark：Please first cut off the power and discharge the Freon out of the unit Operation Illustration Procedure OutdooUnit: GRS-CQ6.0Pd/Na-K(O),GRS-CQ8.0Pd/Na-k(O),GRS-CQ10Pd/Na-K(O) Remove cover.front side plate l and right side Fig. 1 plate.
  • Page 135 AIR-TO-WATERHEATPUMP MAINTENANCE Fig. 3 Remove Cabinet. Loosen tapping screws, and remove the Cabinet. [See Fig. 3] Fig. 4...
  • Page 136 AIR-TO-WATERHEATPUMP MAINTENANCE 3) Remove right side plate. · Loosen the two tapping screws, remove right side plate. [See Fig.5] Fig. 5 4) Remove the Rear Grill · Loosen the two tapping screws, and remove the Rear Grill. [See Fig.6] Fig.6...
  • Page 137 AIR-TO-WATERHEATPUMP MAINTENANCE 5) Remove the Electric Box Assy Fig.7 · Loosen the two tapping screws, and remove Electric Assy .[See Fig. 8] Fig.8...
  • Page 138 AIR-TO-WATERHEATPUMP MAINTENANCE 6) Remove the axial Loosen the ball ・ nuts , and remove the axial fan. [See Fig. 9] Fig. 9 7) Remove the motor ・Loosen the screws fixing motor support. Remove the motor support. Loosen the wire of motor, pull through...
  • Page 139 AIR-TO-WATERHEATPUMP MAINTENANCE 8) Remove the 4-way valve Remove the 4-way valve ・Loosen the screws fixing the coil of 4-way valve。 ・Remove the coil of 4-way valve。 ・Unsolder the tubes connected 4-way valve. ・Remove the 4-way valve. [See Fig.11] Note：When welding, valve should Fig.11...
  • Page 140 AIR-TO-WATERHEATPUMP MAINTENANCE ② . Remove liquid valve ・Loosen the bolts fixing the liquid valve. ・Unsolder the pipe connected liquid valve [See Fig.13] Note：When welding, the valve should be covered by wet cloth in order to avoid the high temp damage. Fig.13 9)Remove compressor...
  • Page 141 AIR-TO-WATERHEATPUMP MAINTENANCE OutdooUnit : GRS-CQ12Pd/Na-K ,GRS-CQ14Pd/Na-K ,GRS-CQ16Pd/Na-K GRS-CQ12Pd/Na-M ,GRS-CQ14Pd/Na-M ,GRS-CQ16Pd/Na-M Remove cover.front side plate l and right side plate. Fig. 1 ・ Loosen the two tapping screws, and remove the cover, the front side plate and right side plate.[ Fig. Fig.
  • Page 142 AIR-TO-WATERHEATPUMP MAINTENANCE Fig. 3 Remove Cabinet. Loosen tapping screws, and remove the Cabinet. [See Fig. 3] Fig. 4...
  • Page 143 AIR-TO-WATERHEATPUMP MAINTENANCE 3) Remove the Rear Grill ・ Loosen the two tapping screws, and remove Rear Grill.[See Fig.5] Fig.5 Remove Electric Box Assy ・ Loosen the two tapping screws, and remove the electric box assy .[See Fig. Fig.7...
  • Page 144 AIR-TO-WATERHEATPUMP MAINTENANCE Fig.8 6) Remove the axial ・ Loosen the ball nuts , and remove the axial fan. [See Fig. 9] Fig. 9...
  • Page 145 AIR-TO-WATERHEATPUMP MAINTENANCE Remove motor ・Loosen the screws fixing motor support. Remove the motor support. Loosen the wire of motor, pull through hole. Remove the motor. [See Fig. 10] Fig.10 Remove 4-way valve Remove the 4-way valve ・Loosen the screws fixing coil 4-way valve。...
  • Page 146 AIR-TO-WATERHEATPUMP MAINTENANCE ①. Remove gas valve ・ Loosen the bolts fixing the gas valve. ・welding out the pipe connected valve [See Fig.12] Note：When welding, the valve should be covered by wet cloth in order to avoid the high temp hurt. Fig.12 ②...
  • Page 147 AIR-TO-WATERHEATPUMP MAINTENANCE Remove compressor gas-liquid separator Remove ・ connection wire compressor 。 [See Fig.13] ・ welding out the suction pipe discharge pipe.（See Fig.14） ・ Loosen the bolts fixing the compressor Remove compressor gas-liquid separator. Fig.14...
  • Page 148 AIR-TO-WATERHEATPUMP MAINTENANCE Indoor Unit Fig. 1 1) Front panel assy [ Fig. 2] Fig. 2...
  • Page 149 AIR-TO-WATERHEATPUMP MAINTENANCE 2）Electric box assy [ Fig. 3] Fig. 3 3 ） Water pump switch water flow switch [See Fig.4] Fig. 4...
  • Page 150 AIR-TO-WATERHEATPUMP MAINTENANCE 4 ） Electric heater, automatic air outlet valve relieve valve [See Fig.5] (joint of pressure gauge for capillary shall be removed) Fig.5 5) Expansion tank [See Fig. 6] Fig.6 6) Plate-type heat exchanger [See Fig. 7] Fig. 7...

  • Page 151: Exploded Views And Part List

    AIR-TO-WATERHEATPUMP MAINTENANCE 5 EXPLODED VIEWS AND PART LIST 5.1 Outdoor Exploded View and Part List Exploded View of GRS-CQ6.0Pd/Na-K(O) Parts List of GRS-CQ6.0Pd/Na-K(O) Name of part Part code Quantity Big Handle 26235001 Valve Support Sub-Assy 0171311501P Right Side Plate 01305044P...
  • Page 152 AIR-TO-WATERHEATPUMP MAINTENANCE Pressure Protect Switch 46020006 Temperature Sensor 3900028010 Electrical heater (Chassis) 765100041 Pressure Protect Switch 46020007 Front Side Plate 01305072P Left Handle 26235401 Cabinet 01435004P Front Grill 22415003 Axial Flow Fan 10335005 Fan Motor 15702802 Motor Support Sub-Assy 01802876 Left Side Plate 01305043P Magnetic Ring...
  • Page 153 AIR-TO-WATERHEATPUMP MAINTENANCE Exploded View of GRS-CQ8.0Pd/Na-k(O) and GRS-CQ10Pd/Na-K(O)
  • Page 154 AIR-TO-WATER HEAT PUMP MAINTENANCE Parts List of GRS-CQ8.0Pd/Na-k(O) and GRS-CQ10Pd/Na-K(O) : Name of part Part code Quantity Big Handle 26235001 01715012P Valve Support Sub-Assy 01305044P Right Side Plate 07133157 Cut-off Valve 5/8 071302391 Cut-off Valve 3/8 07334193 Electric Expansion Valve 4300010818 Electronic Expansion Valve loop 00205230...
  • Page 155 AIR-TO-WATERHEATPUMP MAINTENANCE Exploded View of GRS-CQ12Pd/Na-K(O),GRS-CQ14Pd/Na-K(O) and GRS-CQ16Pd/Na-K(O)
  • Page 156 AIR-TO-WATERHEATPUMP MAINTENANCE Parts List of GRS-CQ12Pd/Na-K(O),GRS-CQ14Pd/Na-K(O) and GRS-CQ16Pd/Na-K(O) : Name of part Part code Quantity Front grill 22414102 Axial Flow Fan 10338731 Fan Motor 15704115 Front Side Plate Sub-Assy 1305430 Electrical heater (Chassis) 765100041 Drainage Plug 6813401 Chassis Sub-assy 1192820 Clapboard Sub-Assy 1 1242808 Compressor support sub-assy...
  • Page 157 AIR-TO-WATERHEATPUMP MAINTENANCE Exploded View of GRS-CQ12Pd/Na-M(O),GRS-CQ14Pd/Na-M(O) and GRS-CQ16Pd/Na-M(O) Parts List of GRS-CQ12Pd/Na-M(O),GRS-CQ14Pd/Na-M(O) and GRS-CQ16Pd/Na-M(O) Name of part Part code Quantity Bidirection Strainer 07220016 Inhalation Tube Sub-Assy 04675328 Gas-liquid Separator 07425216 Compressor support sub-assy 01805295P Chassis Sub-assy 01192820P Electrical heater (Chassis) 765100041 Compressor Gasket 76815204...
  • Page 158 AIR-TO-WATERHEATPUMP MAINTENANCE Front grill 22414102 Cabinet 01435436 Front Side Plate Sub-Assy 01305430 Axial Flow Fan 10338731 Fan Motor 15704115 Clapboard Sub-Assy 01244136 Motor Support Sub-Assy 01804318 Radiator 49018028 Terminal Board 42011257 Magnetic Ring 49010104 Electric Box Assy 1 26904131 Filter Board 30228118 Main Board 30228805...

  • Page 159: Indoor Exploded View And Part List

    AIR-TO-WATER HEAT PUMP MAINTENANCE 5.2 Indoor Exploded View and Part List Exploded View of GRS-CQ6.0Pd/Na-K(I) Parts List of GRS-CQ6.0Pd/Na-K(I) Quantity Name of part Part code Front Panel Cover 01262866 Front Panel 01542808 Electric Box Cover 01422821 Electric Box Assy 01392864...
  • Page 160 AIR-TO-WATERHEATPUMP MAINTENANCE Outlet Water Pipe Sub-Assy 04362888 Water Pump 43138221 Outlet Water Pipe Sub-Assy 04362917 Plate-type Heat Exchanger 00902813 Connection Pipe Sub-assy 05032851 Electric Heater 32000003 Relief Valve 07382814 Auto Air Outlet Valve 07108208 Top cover 01262875 Enter Water Pipe Sub-Assy 04362893 Water Pressure Gauge 49028009...
  • Page 161 AIR-TO-WATERHEATPUMP MAINTENANCE Exploded View of GRS-CQ8.0Pd/Na-K(I) ,GRS-CQ10Pd/Na-K(I),GRS-CQ12Pd/Na-K(I), GRS-CQ14Pd/Na-K(I) and GRS-CQ16Pd/Na-K(I)
  • Page 162 AIR-TO-WATER HEAT PUMP MAINTENANCE Parts List of GRS-CQ8.0Pd/Na-K(I) ,GRS-CQ10Pd/Na-K(I),GRS-CQ12Pd/Na-K(I), GRS-CQ14Pd/Na-K(I) and GRS-CQ16Pd/Na-K(I) Name of part Part code Quantity Front Panel Cover 01262866P 1542808 Front Panel 1422821 Electric Box Cover 1392864 Electric Box Assy 00902811① Plate Heat Exchanger 00902812② 49028003 Water Manometer 1262876 Bottom Cover Plate 4322857...
  • Page 163 AIR-TO-WATERHEATPUMP MAINTENANCE Exploded View of GRS-CQ12Pd/Na-M(I), GRS-CQ14Pd/Na-M(I), GRS-CQ16Pd/Na-M(I) Parts List of GRS-CQ12Pd/Na-M(I), GRS-CQ14Pd/Na-M(I), GRS-CQ16Pd/Na-M(I) Name of part Part code Quantity Front Panel Cover 01262866P Front Panel 01542808 Electric Box Cover 01422821 Electric Box Assy 01392864 Strainer 07412808 Pipe of "L" shape 05022909 Bottom Cover Plate 01262876...
  • Page 164 AIR-TO-WATERHEATPUMP MAINTENANCE Water Flow switch Sub-Assy 45028062 Outlet Water Pipe Sub-Assy 04362888 Water Pump 43138221 Outlet Water Pipe Sub-Assy 04362917 Plate-type Heat Exchanger 00902812 Connection Pipe Sub-assy 05032851 Electric heater 32000004 Relief Valve 07382814 Auto Air Outlet Valve 07108208 Top cover 01262875 Enter Water Pipe Sub-Assy 04362925...

  • Page 165: Water Tank Exploded View And Part List

    AIR-TO-WATERHEATPUMP MAINTENANCE 5.3 Water Tank Exploded View and Part List Exploded View of SXVD200LCJ/A-K, SXVD200LCJ/A-M, SXVD300LCJ/A-K and SXVD300LCJ/A-M...
  • Page 166 AIR-TO-WATERHEATPUMP MAINTENANCE Parts List of SXVD200LCJ/A-K Name of part Part code Quantity Bottom Cover Plate 01262801P Fixation Bracket (Outside) 01802819P Body Of Outdoor Unit 0151283301P Electric Box Assy 01392865 Bottom Cover Plate 01262806P Drainage Pipe Sub-Assy 04362821 Water Tank Base 01892825 Water Pipe Joint (accessory) 06652838...
  • Page 167 AIR-TO-WATERHEATPUMP MAINTENANCE Parts List of SXVD300LCJ/A-K Name of part Part code Quantity Bottom Cover Plate 0126280102P Fixation Bracket (Outside) 01802833P Body Of Outdoor Unit 0151283401P Electric Box Assy 01392865 Bottom Cover Plate 0126280602P Drainage Pipe Sub-Assy 04362821 Water Tank Base 01892825 Water Pipe Joint (accessory) 06652838...
  • Page 168 AIR-TO-WATERHEATPUMP MAINTENANCE Exploded View of SXVD200LCJ2/A-K, SXVD200LCJ2/A-M, SXVD300LCJ2/A-K and SXVD300LCJ2/A-M...
  • Page 169 AIR-TO-WATERHEATPUMP MAINTENANCE Parts List of SXVD200LCJ2/A-K Name of part Part code Quantity Bottom Cover Plate 01262801P Fixation Bracket (Outside) 01802819P Body Of Outdoor Unit 01512833P Magnesium Sub-Assy 04162801 Gasket 7041280401 Electric Box Assy 01392865 Bottom Cover Plate 01262806P Electric heater 32110008 Water Tank Base 01892825...
  • Page 170 AIR-TO-WATERHEATPUMP MAINTENANCE Parts List of SXVD300LCJ2/A-K Name of part Part code Quantity Bottom Cover Plate 0126280102P Fixation Bracket (Outside) 01802833P Body Of Outdoor Unit 01512834P Magnesium Sub-Assy 04162801 Gasket 7041280401 Electric Box Assy 01392865 Bottom Cover Plate 0126280602P Electric heater 32110008 Water Tank Base 01892825...

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Grs-cq8.0pd/na-kGrs-cq10pd/na-kGrs-cq12pd/na-kGrs-cq14pd/na-kGrs-cq16pd/na-kGrs-cq12pd/na-m ... Show all

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