Gree VERSATI III Service Manual
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Gree VERSATI III Service Manual

Monobloc type air-to-water heat pump
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VERSATI III Monobloc Type Air-to-water Heat Pump

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Summary of Contents for Gree VERSATI III

  • Page 1 Change for life Service Manual VERSATI III Monobloc Type Air-to-water Heat Pump...

  • Page 2: Table Of Contents

    Contents Product Data ........................1 1 Product Data ....................... 1 1.1 Lineup ..........................1 1.2 Nomenclature ........................3 1.3 Product Features ......................4 1.4 Operating Principle ......................7 1.5 Technical Data ........................8 2 Outline Dimensions ....................23 3 Explosive Views and Part Lists ................24 4 Supply Scope ......................
  • Page 3 Control .......................... 41 1 Integral Control Concept ..................41 1.1 Control Principle Diagram ....................41 1.2 Control Flowchart ......................45 2 Main Control Logics ....................45 2.1 Cooling ..........................45 2.2 Heating ..........................46 2.3 Water Heating .......................48 2.4 Shutdown ........................48 2.5 Control to the Compressor ....................49 2.6 Control to the Fan ......................49 2.7 Control to the 4-way Valve ....................49 2.8 Control to the Water Pump .....................49...
  • Page 4 4.11 Wiring of the 2-Way Valve ...................110 4.12 Wiring of Other Thermal ....................110 4.13 Wiring of Optional Electric Heater ................112 4.14 Wiring of the Gate-Controller ..................113 4.15 Wiring of the Remote Air Temperature Sensor ............113 4.16 Wiring of the Thermostat .....................114 4.17 Wiring of the Control ....................115 5 Commissioning and Trial Run ................

  • Page 5: Product Data

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Product Data 1 Product Data 1.1 Lineup 1.1.1 Main Unit Cooling Heating Product Power Series Model Capacity Capacity Refrigerant Appearance Code Supply (kW) (kW) GRS- CQ4.0Pd/ ER01001350 NhG-K GRS- CQ6.0Pd/ ER01001360 NhG-K GRS- CQ8.0Pd/ ER01001370 NhG-K...
  • Page 6 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Cooling Heating Power Series Model Product Code Capacity Capacity Refrigerant Image Supply (kW) (kW) GRS- CQ4.0Pd/ ER01001520 NhG1-K GRS- CQ6.0Pd/ ER01001620 NhG1-K GRS- CQ8.0Pd/ ER01001610 NhG1-K GRS- CQ10Pd/ ER01001570 NhG1-K GRS- CQ12Pd/ ER01001590 NhG1-K GRS- CQ14Pd/...

  • Page 7: Nomenclature

    Nominal Cubage(L) Image SXTVD300LCJ2/A-K ER20000350 1.2 Nomenclature 1.2.1 Main Unit Description Options GREE G-GREE Air to water heat pump Heat Pump Water Heater Heating Mode S= Static; C=Circulating Function Q=Multi-function; Default=Single-function Nominal Heating Capacity 6.0=6.0kW; 8.0=8.0kW;10=10kW; 12=12kW; 14=14kW; 16=16kW Compressor Style Pd=DC Inverter;...

  • Page 8: Product Features

    -25~35°C while the leaving water temperature range is 20~60°C. The Versati III unit is designed specially for the European market where there is a demand for high-temperature water. Thanks to the dual-stage compression and enthalpy gain through gas injection, the heating energy efficiency at low temperature will rise up greatly with the leaving water temperature up to 60°C.
  • Page 9 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Upper flange Upper rolle Upper cylinder Partition Lower cylinder Lower flange Cover plate Crank High-efficiency Component(Inverter pump, Inverter fan, Plate heat exchanger) ◆ (1) The A-class high-efficiency inverter water pump which complies with the European ErP directive, can control the running frequency based on the actual load.
  • Page 10 Air-to-water Heat Pump Split Versati MONOBLOC TYPE (2) Liquid crystal display and touch-screen operation. (3) The 12V JACK interface can supply power to the control separately and lengthen the communication distance. (4) The remote monitoring interface can monitor the unit through the Mobus interface and be integrated into the BMS system.

  • Page 11: Operating Principle

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 1.4 Operating Principle 1.4.1 Schematic Diagram...

  • Page 12: Technical Data

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 1.5 Technical Data 1.5.1 Parameter List GRS- GRS- GRS- GRS-CQ4.0Pd/ Model CQ6.0Pd/ CQ8.0Pd/ CQ10Pd/ NhG-K NhG-K NhG-K NhG-K Product Code ER01001350 ER01001360 ER01001370 ER01001410 Cooling(floor cooling) Capacity*1 Heating(floor heating) Cooling(floor cooling) 0.82 1.32 1.55 1.96 Power...
  • Page 13 Air-to-water Heat Pump Split Versati MONOBLOC TYPE GRS- GRS- GRS-CQ14Pd/ GRS-CQ16Pd/ Model CQ12Pd/ CQ10Pd/ NhG-K NhG-K NhG-K NhG-M Product Code ER01001400 ER01001390 ER01001380 ER01001420 Cooling dB(A) Sound Heating dB(A) Pressure Heating (quiet operation) dB(A) Level Cooling (quiet operation) dB(A) Outline 1200×460×878 Packaged 1288×588×1020...
  • Page 14 Air-to-water Heat Pump Split Versati MONOBLOC TYPE GRS- GRS-CQ12Pd/ GRS-CQ14Pd/ GRS-CQ16Pd/ Model CQ4.0Pd/ NhG2-K NhG2-K NhG2-K NhG2-K Product Code ER01001350 ER01001400 ER01001390 ER01001380 Cooling(for Fan coil) Capacity*2 Heating(Fan coil or 15.5 Radiator) Cooling(for Fan coil) 0.94 3.11 4.14 4.73 Power Heating(Fan coil or Input*2 0.98...
  • Page 15 7~25 -15~48 Heating 20~60 -25~35 Water Heating 40~80 (Water Tank Temperature) -25~45 Note: when operating conditions are out of the range listed above, please contact GREE. 1.5.4 Temperature sensor parameter Nominal working datas Inspection Displayed Name Remark range(°C) Cooling Heating...
  • Page 16 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Nominal working datas Inspection Displayed Name Remark range(°C) Cooling Heating Hot water T-remote room -30~150 18~30 18~30 18~30 Dis. Pressure -40~70 25~60 25~62 25~62 T-weather depend -30~150 7~25 25~60 based on calculation 1.5.5 Electric Data Minimum Section Area Minimum Section Area of Power Supply...
  • Page 17 Air-to-water Heat Pump Split Versati MONOBLOC TYPE distribution cabinet to the unit less than 75m. If cables are laid out in a distance of 75m to 150m, diameter of power cable must be increased to a further grade. (c) The power supply must be of rated voltage of the unit and special electrical line for air-conditioning. (d) All electrical installation shall be carried out by professional technicians in accordance with the local laws and regulations.
  • Page 18 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Cooling Capacity Correction_6 Ambient Temp.(°C) Outflow Water(°C) 0.82 0.91 1.12 1.07 1.06 1.00 0.91 0.71 0.60 0.85 0.95 1.00 1.06 1.08 1.04 0.95 0.74 0.62 0.89 0.98 1.04 1.10 1.12 1.08 0.98 0.77 0.65 0.92 1.02...
  • Page 19 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Cooling Capacity Correction_12 Ambient Temp.(°C) Outflow Water(°C) 1.21 1.17 1.13 1.08 1.04 1.00 0.96 0.92 0.89 1.23 1.18 1.14 1.10 1.03 1.01 0.97 0.92 0.90 1.23 1.19 1.15 1.11 1.04 1.03 0.98 0.93 0.91 1.25 1.20...
  • Page 20 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Computer of actual cooling capacity: actual cooling capacity = nominal cooling capacity x cooling capacity correction coefficient. Heating Capacity Correction ◆ Heating Capacity Correction_4KW Outflow Ambient Temp.(°C) Heated Water(°C) 0.75 0.85 0.89 0.91 0.92 0.94 0.95...
  • Page 21 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Heating Capacity Correction_10KW Outflow Ambient Temp.(°C) Heated Water(°C) 0.74 0.78 0.82 0.86 0.89 0.96 1.02 1.10 1.13 1.15 1.24 1.28 1.30 1.33 1.43 0.68 0.74 0.79 0.82 0.85 0.92 0.98 1.06 1.09 1.10 1.18 1.21 1.23...
  • Page 22 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Cooling EER Correction ◆ EER Capacity Correction_4 Ambient Temp.(°C) Outflow Water(°C) 1.36 1.31 1.27 1.21 1.11 1.00 0.83 0.61 0.49 1.41 1.36 1.32 1.26 1.15 1.04 0.86 0.63 0.51 1.47 1.41 1.37 1.31 1.20 1.08 0.90...
  • Page 23 Air-to-water Heat Pump Split Versati MONOBLOC TYPE EER Capacity Correction_10 Ambient Temp.(°C) Outflow Water(°C) 1.43 1.35 1.26 1.14 1.04 1.00 0.91 0.83 0.77 1.50 1.41 1.32 1.20 1.10 1.04 0.94 0.85 0.79 1.58 1.48 1.38 1.26 1.16 1.07 0.97 0.88 0.81 1.65 1.54...
  • Page 24 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2.64 2.40 2.17 2.03 1.85 1.47 1.24 1.00 0.87 2.90 2.63 2.37 2.22 2.03 1.58 1.32 1.05 0.90 3.07 2.78 2.50 2.35 2.16 1.65 1.37 1.08 0.93 EER Capacity Correction_16 Ambient Temp.(°C) Outflow Water(°C) 1.65 1.52...
  • Page 25 Air-to-water Heat Pump Split Versati MONOBLOC TYPE COP Correction_8kW Outflow Ambient Temp.(°C) Heated Water(°C) 0.63 0.66 0.75 0.86 0.91 1.01 1.05 1.11 1.20 1.30 1.40 1.49 1.59 1.68 1.78 0.55 0.63 0.77 0.89 0.90 0.96 1.16 1.47 1.16 1.59 1.30 1.40 1.49 1.59...
  • Page 26 Air-to-water Heat Pump Split Versati MONOBLOC TYPE COP Correction_14kW Outflow Ambient Temp.(°C) Heated Water(°C) 0.40 0.50 0.57 0.72 0.88 1.15 1.37 1.50 1.54 1.55 1.59 1.65 1.71 1.82 2.00 0.36 0.46 0.55 0.71 0.85 1.08 1.27 1.38 1.43 1.47 1.52 1.60 1.69 1.81...

  • Page 27: Outline Dimensions

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2 Outline Dimensions (1) GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/Nh 1150 (2) GRS-CQ10Pd/NhG-K,GRS-CQ12Pd/NhG-K,GRS-CQ14Pd/NhG-K,GRS-CQ16Pd/NhG-K GRS-CQ10Pd/ NhG-M,GRS-CQ12Pd/NhG-M,GRS-CQ14Pd/NhG-M,GRS-CQ16Pd/NhG-M 1200...

  • Page 28: Explosive Views And Part Lists

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3 Explosive Views and Part Lists GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/NhG-K, GRS-CQ4.0Pd/NhG1-K, GRS- CQ6.0Pd/NhG1-K, GRS-CQ8.0Pd/NhG1-K Parts List of GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/NhG-K, GRS-CQ4.0Pd/NhG1-K, GRS-CQ6.0Pd/NhG1-K, GRS-CQ8.0Pd/NhG1-K Name of part Part Code Quantity Electric Box Assy 100002061829 Main Board 300027060242 Main Board 300027060253...
  • Page 29 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Name of part Part Code Quantity 4-way Valve 4300008201 4-way Valve Assy 030152060076 Pressure Sensor(High Pressure) 43004400000901 Electric Expand Valve Fitting 4300876708 Electronic Expansion Valve 07133978 Automatic exhaust valve 07108208 Water Pump 812007000002 Strainer 0721200102 Valve Support...
  • Page 30 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Name of part Part Code Quantity Receiver Board 30261014 Temperature Sensor Support 26904100025 Temperature Sensor 3900028312G Temperature Sensor 3900028316G Strainer 035021000010 Display Board 300001060261 Sensor Sub-assy 390002060040 Note: G1 sereis is almost the same with the G series, except the water pump, as listed below. Name of part Part Code Quantity...
  • Page 31 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Name of part Part Code Quantity Water Pump 812007000002 Auto Air Outlet Valve 07108208 Strainer 035021000010 Relief Valve 07382814 Steam current Switch 4502806203 Cut off Valve 07130239 Strainer 0721200102 Electric Expand Valve Fitting 43000344 Plate-type Heat Exchanger Sub-Assy 030166060020...
  • Page 32 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Name of part Part Code Quantity Main Board 300027060298 Filter Board 300020060032 Inductance 43128000014 Main Board 300002060375 Terminal Board 42011103 Main Board 300027060253 Terminal Board 422000000009 Terminal Board 422000000010 Magnet Coil 4300040030 Note: G1 sereis is almost the same with the G series, except the water pump, as listed below. Name of part Part Code Quantity...
  • Page 33 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Parts List of GRS-CQ10Pd/NhG-M,GRS-CQ12Pd/NhG-M,GRS-CQ14Pd/NhG-M,GRS-CQ16Pd/NhG-M, GRS- CQ10Pd/NhG1-M,GRS-CQ12Pd/NhG1-M,GRS-CQ14Pd/NhG1-M,GRS-CQ16Pd/NhG1-M Name of part Part Code Quantity Inductor 43128000014 Wiring board 42011103 Main board 300027060253 Filter board 30223000044 Wiring board 422000000009 Wiring board 422000000010 Wiring board 420001000004 Magnetic Ring 49010118 Electric Box Assy 100002061830...

  • Page 34: Supply Scope

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Name of part Part Code Quantity Temperature Sensor 3900028316G Temperature Sensor 3900028312G One-way Valve 07338000112 Strainer 0721212101 Silencer 07245012 Gas-liquid Separator 035027000024 Condenser Assy 01100200071601 Radiator 430034000016 Drive board 30223000119 Reactor 43130192 Main board 300002060375 Strainer 035021000010...

  • Page 35: Model Selection

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Model Selection 1 Installation Example CASE 1: Connecting Under-floor Coil for Heating and Cooling Under-f loor c oil By-pass value(Fi e ld supply) Shut off value Remote room Thermostat(Field supply) Low t emperature line High temperature line Notes (a) Type of thermostat and specification should be complied with installation of this manual;...

  • Page 36: Model Selection

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Notes (a) In this case, three-way valve should be installed and should be complied with installation of this manual; (b) Sanitary should be equipped with internal electric heater to to secure enough heat energy in the very cold days.

  • Page 37: Operation Conditions

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2.2 Operation Conditions Capacities and power inputs are based on the following conditions (floor heating /cooling ) a. Cooling conditions b. Heating conditions Indoor Water Temp 23°C/18°C; Indoor Water Temp 30°C/35°C; Outdoor Air Temp 35°C DB/24°C WB Outdoor Air Temp 7°C DB/6°C WB Capacities and power inputs are based on the following conditions (FCU or radiator) a.

  • Page 38: Selection Of Tube Spacing Of The Underfloor Coils

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Notes (a) Villas whose load is generally larger than the houses should take the value between the middle and the maximum empirical values listed above. (b) The top layer whose load is generally larger than the middle or bottom layer should take the maximum empirical value.

  • Page 39: Quantity And Location Of The Water Traps And Collectors

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Length of underfloor coils is recommended to be within 100m and length of each branch should be kept the same to the most extent. 4 Quantity and Location of the Water Traps and Collectors The water trap (collector) is a kind of device for distributing water for the water supply and return tubes.

  • Page 40: Requirements On Installation Of The Water Trap (Collector)

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE (5) Distance between the unit and the water trap (collector) should be within 15m. If the distance exceeds 20m, then it is required to calculate the hydraulic power. 4.2 Requirements on Installation of the Water Trap (Collector) (1) The water trap (collector) should be installed on the wall or inside the special box.

  • Page 41: Section Of Fcu

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 5 Section of FCU 5.1 FCU Type Selection The air-water fan coil unit is optional for Versati units. 5.2 Matching of Capacity Load of the FCU is better to be between 70%~120% of the Versati unit. Notes: (a) When load of the FCU is too small, the unit would start/stop frequently, which is adverse for oil return.

  • Page 42: Volume Selection Of The Water Tank

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 6.2 Volume Selection of the Water Tank 6.2.1 Selection Based on Water Consumption Per Capita Building Type Unit Daily Water Consumption (L) Water Temperature (°C) House Per person, Per day 40~80 Villa Per person, Per day 70~110 6.2.2 Selection Based on Sanitary Utensils Daily Water...

  • Page 43: Heat Load Calculation

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 7.2 Heat Load Calculation 7.2.1 Load Calculation of a Single Floor Room Area Heat Index (W/m2) Heat Load (W) Master Room 2296 Bathroom Total Load 2296+900=3196W 7.2.2 Arrangement Design of the Underfloor System for A Single Floor Assumed conditions: the floor is cement or ceramics, the normal external diameter of the heating pipe is 20mm, thickness of the stuffer is 50mm, thickness of PS foam insulation is 20mm, supply water temperature is 45°C, return water temperature is 35°C, indoor design temperature is 20°C.

  • Page 44: Model Selection

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE C. Check for the ground average temperature tp=tn+9.82×(qx/100) 0.969=20+9.82×(82/100) 0.969=28°C Upper Limits and Average Floor Temperature Average Floor Temperature Area Average Temperature Maximum Temperature Long-term Dwelling Area 24~26 Short-term Dwelling Area 28~30 Nobody Area 35~40 7.3 Model Selection Heat demand for a single layer: 3196W...

  • Page 45: Control

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Control 1 Integral Control Concept 1.1 Control Principle Diagram Control diagram ◆...
  • Page 46 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Complete electric connection diagram ◆ (1) The outdoor temperature is detected by the sensor installed at fins of the finned heat exchanger, which is mainly used to control the initialization steps of the fan and the electrostatic expansion valve and also limit the maximum running frequency of the compressor.
  • Page 47 Air-to-water Heat Pump Split Versati MONOBLOC TYPE (6) The temperature sensor at the economizer outlet is used to detect the tmpeature of the outlet of the economizer. Unde the Heating or Hot Water mode, this sensor and that at the economser inlet both are used to control the opening angle of the electrostatic expansion valve 2.
  • Page 48 Air-to-water Heat Pump Split Versati MONOBLOC TYPE entering water temperature sensor fails, this error will be displayed at the controller and the unit continues normal operation. When other two sensors fail, this error also will be displayed at the controller and the water pump of the solar system will stop.

  • Page 49: Control Flowchart

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 1.2 Control Flowchart Power Switch On Operation Mode Judgment Cooling Heating Water Heating 3-Way Vavle and 3-Way Vavle and 3-Way Vavle and 2-Way Vavle 2-Way Vavle 2-Way Vavle Control Control Control Water Pump Error Water Pump Error...

  • Page 50: Heating

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE frequency. Then if it is still detected that the leaving water temperature is lower than the freeze protection temperature, the main unit will stop as per the shutdown frequency but the water pump keeps normal operation. When it is detected that the leaving water temperature of the plate heat exchanger is equal to or larger than the freeze protection withdrawing temperature, freeze protection will exit.
  • Page 51 Air-to-water Heat Pump Split Versati MONOBLOC TYPE GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M.GRS-CQ10Pd/ NhG2-M, GRS-CQ12Pd/NhG2-M, GRS-CQ14Pd/NhG2-M, GRS-CQ16Pd/NhG2-M Case 1 380-415V,3N~ 50HZ 380-415V,3N~ 50HZ 380-415V,3N~ 50HZ A1 1 A1 1 15 16 17 12 13 14 18 19 20 KM 2 KM 3 Optional E-heater 1 Optional E-heater 2 Water Tank E-heater...

  • Page 52: Water Heating

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2.3 Water Heating Water heating can be achieved by either the solar system or the main unit (heat pump). 2.3.1 Water Heating by the Main Unit (1) When the outdoor temperature is out of the operation range, the compressor will not start, and water heating will be done by the water tank heater.

  • Page 53: Control To The Compressor

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2.5 Control to the Compressor When the unit is controlled by the leaving water temperature, the output frequency of the compressor is adjusted by the difference between the actual water temperature and the leaving water temperature set point. When the unit is controlled by the room temperature, the output frequency of the compressor is adjusted by the difference between the actual room temperature and the room temperature set point.

  • Page 54: Control Panel

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3. Control Panel 3.1 General (This picture is just for reference) This display panel uses the capacitor touch screen for input operation. The valid touching area indicates the black rectangle when the display panel lights off. This control panel is of high sensitivity and will response to unexpected click by the foreign matters on the display panel.
  • Page 55 Air-to-water Heat Pump Split Versati MONOBLOC TYPE ●Under the combined modes, the temperature set point is for space heating or cooling. Only under the water heating mode, it is for water heating. ●It will go back automatically to the homepage when there is no any operation in ten minutes. 3.1.2 Menu Page Menu Page Above the menu, the corresponding icon will be displayed based on the mode and status of the controller.

  • Page 56: Operation Instructions

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Cooling + Hot water WiFi Hot water + Cooling Back Quiet Menu page Sanitation Save Emergency Error [Notes] ●The “Cooling” mode is unavailable to the heating only unit. ●The “Hot water” mode is unavailable to the heating only unit. ●The “Heating + Hot water”...
  • Page 57 Air-to-water Heat Pump Split Versati MONOBLOC TYPE ON Page 3.2.2 Function Setting [Operation Instructions] 1.At the menu page, by touching “FUNCTION”, it will go to the function setting page as shown in the figure below. FUNCTION Setting Page 2.At the function setting page, by touching the page turning key, it will access to the last or next page. When setting is finished, by touching the menu page icon, it will directly back to the menu page;...
  • Page 58 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Item Range Default Remarks 1. When the water tank is unavailable, it will be Fast hot water On/Off reserved. 1. When the water tank is available, it will be defaulted to be “Hot water”; when unavailable, it will Cool + hot water Cool/Hot water Hot water...
  • Page 59 Air-to-water Heat Pump Split Versati MONOBLOC TYPE ●When the water tank is unavailable, only “Heat” and “Cool” mode are allowed. ●When the water tank is available, “Cool”, “Heat”, “Hot water”, “Cool+ Hot water”, and “Heat+ Hot water” are allowed. ●For the heat pump, the “Cool” mode is allowed; for the heating only unit, “Cool+ Hot water” and “Cool” are unallowable.
  • Page 60 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Timer for Quite Mode This setting will be saved by touching the corner at the upper right corner. [Notes] ●It can be set under both ON and OFF statuses, but will work only when the main unit is turned on. ●When it is set to “On”, it will automatically back to “Off”...
  • Page 61 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 1.At the function setting page, by touching “Weekly timer”, it will go to the setting page as shown below. 2.At the “Weekly timer” setting page, as shown in the figure below, the weekly timer can be set to “On” or “Off”. 3.At the “Weekly timer”...
  • Page 62 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.Then, this setting will be saved by touching the “Save” icon. [Notes] ●This function is unavailable to mini chillers. ●This setting can be activated only when “Water tank” is set to “With”. When “Water tank” is set to “Without”, this function will be deactivated.
  • Page 63 Air-to-water Heat Pump Split Versati MONOBLOC TYPE [Notes] ●When “Clock timer” has been set and “Hot water” mode is involved, in this case, if “Water tank” is changed to “Without”, “Hot water” will be automatically switched to “Heat”, and “Cool/Heat + Hot water” will be switched to “Cool/Heat”.
  • Page 64 Air-to-water Heat Pump Split Versati MONOBLOC TYPE [Notes] ●When “Weekly timer”, “Preset mode”,“Clock timer” “Temp. timer” have been set at the same time, then the latter takes the priority. ●This setting is valid only when the unit is turned on. ●Under the “Cool”...
  • Page 65 Air-to-water Heat Pump Split Versati MONOBLOC TYPE ●Upon power failure, “Emergen. mode” will back to “Off”. 3.2.2.13 Holiday Mode [Operation Instructions] At the function setting page, select “Holiday mode” and set it to “On” or “Off”. [Notes] ●This function can be activated only when the unit has been turned off, otherwise a prompt dialog box will pop up, saying “Please turn off the system frist!”.
  • Page 66 Air-to-water Heat Pump Split Versati MONOBLOC TYPE ●When the water tank is available, the preset mode can be “Heat”, “Cool”, or “Hot water”; however, when the water tank is unavailable, the preset mode can only be “Heat” or “Cool”. ●“Start timer” should be earlier than “End timer”, otherwise a dialog will pop up, saying “time setting wrong”. ●The setting for “Preset mode”...
  • Page 67 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Parameter Setting Page 2.At the menu setting page, by touching the page turning keys, it is able to switch to the page where the desired parameter is. 3.After that, this setting will be saved by touching “OK” and then the unit will run based on this setting. While this setting will give up by touching “Cancel”.
  • Page 68 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.2.4 Commissioning Parameter Setting [Operation Instructions] 1.At the menu page, by touching “Commission”, it will access to the commissioning parameter page, where the left side is for the function setting and the right side is for the parameter setting, as shown in the figure below. [Notes] ●At the commissioning parameter setting page, when the state of any function changes, the system will automatically save this change and this change will remain upon power failure.
  • Page 69 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Item Range Default Description Manual On/Off defrost “ ” Force mode Off/Force-cool/Force-heat Force-cool is unavailable to heating only units. 1. This setting is allowed when the water tank is Tank heater Logic 1/Logic 2 Logic 1 available and the unit is OFF.
  • Page 70 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.2.4.2 2-Way valve [Operation Instructions] At the commissioning parameter setting page, by touching “Cool 2-Way valve” or “Heat 2-Way valve”, the control panel will access to the corresponding setting page. [Notes] ●This setting is unavailable to heating only units. ●Under “Cool”, or “Cool + Hot water”...
  • Page 71 Air-to-water Heat Pump Split Versati MONOBLOC TYPE [Notes] ●When “Water tank” is set to “Without”, the “Air + hot water” mode is unavailable. ●When “Floor debug” and “Emergen.mode” have activated, function of the thermostat will be invalid. Temp.timer will be deactivated automatically ●When “Thermostat”...
  • Page 72 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2.The water pump for other thermal must be always active under the “Heat” mode. 3.Under the “Heat” mode, the 2-way valve will be controlled based on the setting of the control panel. During heating operation, the water pump of the heat pump unit will be stopped;...
  • Page 73 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Other Thermal Control Product Mode Remark Required accessories Heat Available RT5 temperature sensor Hot water Available Extra 3-way valve, water tank sensor Monobloc Heat+Hot Extra 3-way vlave,RT5 temperature sensor, Available water Water tank sensor Heat Available RT5 temperature sensor...
  • Page 74 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.2.4.8 Remote Sensor [Operation Instructions] At the commissioning parameter setting page, by touching “Remote sensor”, the control panel will access to the corresponding setting page, where it can be set to “With” or “Without”. [Notes] ●This setting will be memorized upon power failure.
  • Page 75 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.When this setting is finished, by pressing “Start” this setting will be saved and start working, and by pressing “Stop” the function will halt. [Notes] ●This function can be activated only when the unit is turned off. When it is done with the unit keeping “On”, a window will pop up, saying “Please turn off the system first!”.
  • Page 76 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.2.4.13 Gate-Ctrl. [Operation Instructions] At the commissioning parameter setting page, by touching “Gate-Ctrl.”, the control panel will access to the corresponding setting page. [Notes] ●When “Gate-Ctrl.” has been activated; the display panel will detect the card state. When the card has inserted, the unit will run normally.
  • Page 77 Air-to-water Heat Pump Split Versati MONOBLOC TYPE [Notes] ●This function is allowed only when the unit has just repowered and not turned on. For the unit which once has been put into operation, this function is unavailable, alerting “Wrong operation”. ●This function will not be memorized upon power failure.
  • Page 78 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Display Full Name Range Default Remark Name T-HP max T-HP max 40~55℃ 104~131°F 50℃ /122°F It is unavailable to mini chillers. When “Cool run time” has 3min [2-way valve Off] expired and temperature Cool run Cool run 1~10min...
  • Page 79 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Viewable Status Full Name Displayed Name Status Remarks Status of the compressor Compressor On/Off Status of the fan On/Off “Cool” is unavailable to Status of the unit Unit status Cool/Heat/Hot water/Off the heating only unit. Status of the water pump HP-pump On/Off...
  • Page 80 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Full Name Displayed Name Remarks Environmental temperature T-outdoor Suction temperature T-suction Discharge temperature T-discharge Defrosting temperature T-defrost Entering water temperature of the plate type heat exchanger T-water in PE Leaving water temperature of the plate type heat exchanger T-water out PE Leaving water temperature of the auxiliary heater T-optional water Sen.
  • Page 81 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Full Name Displayed Name Low pressure protection Low pressure High discharge protection Hi-discharge Capacity DIP switch error Capacity DIP Communication error between the outdoor and indoor main boards ODU-IDU Com. Communication error between the outdoor main board and the drive board Drive-main com.
  • Page 82 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Full Name Displayed Name Sensor connection protection ( the current sensor fails to be connected with the Sensor con. corresponding phase U and or phase V) Communication error between the display panel and the outdoor unit ODU Com.
  • Page 83 Air-to-water Heat Pump Split Versati MONOBLOC TYPE General Setting Page General Settings Item Range Default Remarks Temp. unit °C/°F °C On/Off memory On/Off Beeper Enter “Lighted”: the control panel will always light on. “Energy save”: When there is no touching Back light Lighted/Energy save Energy save...

  • Page 84: Intelligent Control

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Time&Data Page 3.3 Intelligent Control As shown in the figure below, remote control via a smart phone is available for the control panel. [Notes]: ●Make sure the smart phone or tablet computer adopts standard Android or Ios operation system. For detailed version, please refer to the APP.
  • Page 85 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.3.1 Install GREE+ APP [Operation Instructions] 1.Scan the following QR code with your smart phone to download and install GREE+ APP directly. 2.Open GREE+ APP and click “Sign up” for registration.
  • Page 86 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.Except sign in in the prompt interface, you can also enter the homepage and click the profile picture at the left upper corner to sign in. 4.Click "+" at the right upper corner of homepage to add device.
  • Page 87 Air-to-water Heat Pump Split Versati MONOBLOC TYPE After selecting “VERSATI”, the APP interface will provide relevant operation instructions.
  • Page 88 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Reset the air conditioner (refer to the operation instructions in APP interface) and click “Next” to add home appliance automatically (Wi-Fi password shall be input). Or after setting and energizing the air conditioner, click “Add appliance manually”...
  • Page 89 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.3.2 Setting of Main Functions 1.Set mode and temperature.
  • Page 90 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 2.Click Func at the left lower corner in device operation interface to enter advanced settings. 3.3.3 Setting of Other Functions Click the profile picture at the left upper corner of homepage and set each function in the following menu. 3.3.3.1 Home management Click “Home management”...
  • Page 91 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.3.3.2 Help Click “Help” and view the operation instructions of the APP.
  • Page 92 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.3.3 Feedback Click “Feedback” to submit feedback.

  • Page 93: Unit Installation

    1. Installation Guides WARNING • Installation should be performed by GREE appointed servicemen, or improper installation would lead to unusual operation, water leakage, electric shock or fire hazard. • The unit should be installed on the foundation which is capable of supporting the unit, or the unit would fall off or even lead to personal injury.

  • Page 94: Matters Need Attention

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE (7) Do not install at a place where inflammable or explosive goods exist or a place subject to severe dust, salty fog and polluted air. (8) Drainage pipe is easy to connect out. (9) Do not install at a place where inflammable or explosive goods exist or inflammable or explosive gas might leak.

  • Page 95: Service Tools

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Usage Name Picture Pipe and Pipe It is used to connect the water pipes. Joint Cut-off Valve It is used to cut off or get through the waterway. 3 Service Tools Name Picture Spanner Screw Driver Pliers...

  • Page 96: Installation Instructions

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4 Installation Instructions 4.1 Installation Examples CASE 1: Connecting Under-floor Coil for Heating and Cooling Under-f loor c oil By-pass value(Fi e ld supply) Shut off value Remote room Thermostat(Field supply) High temperature line Low t emperature line Notes (a) Type of thermostat and specification should be complied with installation of this manual;...

  • Page 97: Pre-Installation

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Notes (a) In this case, three-way valve should be installed and should be complied with installation of this manual; (b) Sanitary should be equipped with internal electric heater to to secure enough heat energy in the very cold days.

  • Page 98: Selection Of Installation Location

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.3 Selection of Installation Location (1) The outdoor unit must be installed on a firm and solid support. (2) Avoid placing the outdoor unit under window or between two constructions, hence to prevent normal operating noise from entering the room.

  • Page 99: Installation Of Monobolc Unit

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 1200 4.5 Installation of Monobolc Unit 4.5.1 Installation Clearance Inlet Inlet Outlet 2000 ＞ Outlet (1) When moving the unit, it is necessary to adopt 2 pieces of long enough rope to hand the unit from 4 directions.
  • Page 100 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.5.2 Installation Water pipe connection of monobloc unit It is recommended to connect water pipe in horizontal direction. Do Not connect water pipe in vertical direction. 4.5.3 Usage of rubber rings (1) Take away the original rubber rings; replace the long tail rubber rings of accessory; (2) Wires installed by field supply get through the rubber rings,such as 2-way valve,3-way valve,power cable and so on.Be careful of separating electrical wire and light current wire.
  • Page 101 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 10/12/14/16kW Unit: 4.5.5 Safety operation of flammable refrigerant (1) Qualification requirement for installation and maintenance man7 Installation of Hydraulic Unit All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry.
  • Page 102 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Leak test is a must after installation. Charge amount(kg) ≤1.2 Minimum floor location 14.5 16.8 19.3 24.8 27.8 34.3 37.8 41.5 45.4 49.4 53.6 room window mounted 11.2 12.4 13.6 16.3 17.8 19.3 area wall mounted ceiling mounted...

  • Page 103: Installation Of Hydraulic Unit

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.6 Installation of Hydraulic Unit 4.6.1 Available External Static Pressure of Outlet Notes (a) See the curve above for the maximum external static pressure. The water pump is of variable frequency. And during operation, the water pump will adjust its output based on the actual load. (b) When the water flow and delivery head fail to satisfy the actual need, the user is allowed to add extra water pumps.

  • Page 104: Installation Of Water Tank

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.6.3 The method of calculating the charging pressure of expansion vessel The method of calculating the charging pressure of expansion vessel needed to be adjusted is as follows.During installation, if the volume of water system has changed, please check if the pre-set pressure of theexpansion vessel needs to be adjusted according to the following formula: Pg=(H/10+0.3)Bar (H ---the difference between installing location of indoor unit and the highest spot of water system.)
  • Page 105 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Safety check valve Tap water Note: for safe use of water, water outlet/inlet of water tank must connect with a certain length of PPR pipe, L≥70×R2(cm, R is inside radius of the pipe). Moreover, heat preservation should be conducted and metal pipe cannot be used.
  • Page 106 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Model SXTVD300LCJ2/A-K F(mm) G(mm) I(mm) J(mm) K(mm) Outline (Diameter×H) (mm) Φ620×1725 Package(WDH) 738×870×1843 Net weight Gross weight Joints Dimension Description Joint pipe thread Hot water outlet of water tank 3/4″Female BSP Circulating water inlet/outlet of water tank 3/4″Female BSP Cooling water inlet of water tank 3/4″Female BSP...
  • Page 107 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Indoor Unit Water Tank Hot water output Other Thermal System Temp Sensor 1 Temp Sensor 2 Power cord of booster heater Safety check valve Filter cooling Tap water water inlet Blow-off Outlet Description Joint pipe thread Circulating water inlet/outlet of main unit 1″Male BSP...
  • Page 108 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Installation of the Water Tank Safety Valve ◆ Pressure of the water tank will gradually increase during heating and a safety valve is required to discharge some water for pressure relief. If not or installed incorrectly, it would cause the water tank to expand, to be deformed, to be damaged or even lead to personal injury.

  • Page 109: Requirements On Water Quality

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.8 Requirements on water quality Item Parametric value Unit pH( 25°C) 6.8~8.0 Cloudy ＜ Chloride mg/L ＜ Fluoride mg/L ＜ Iron mg/L ＜ Sulphate mg/L ＜ SiO2 mg/L ＜ Hardness(count CaCO3) mg/L ＜ Nitrate(count N) mg/L ＜...
  • Page 110 Air-to-water Heat Pump Split Versati MONOBLOC TYPE GRS-CQ10Pd/NhG-K, GRS-CQ12Pd/NhG-K, GRS-CQ14Pd/NhG-K, GRS-CQ16Pd/NhG-K.GRS-CQ10Pd/ ◆ NhG1-K, GRS-CQ12Pd/NhG1-K, GRS-CQ14Pd/NhG1-K, GRS-CQ16Pd/NhG1-K Water tank ◆ Electric Thermostat Power heater WP95A-R YEGN Electric heating 3YEGN Electrical Note: the dotted line box requires on-site wiring.
  • Page 111 Air-to-water Heat Pump Split Versati MONOBLOC TYPE GRS-CQ10Pd/NhG2-K, GRS-CQ12Pd/NhG2-K, GRS-CQ14Pd/NhG2-K, GRS-CQ16Pd/NhG2-K ◆ GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M.GRS- ◆ CQ10Pd/NhG1-M, GRS-CQ12Pd/NhG1-M, GRS-CQ14Pd/NhG1-M, GRS-CQ16Pd/NhG1-M.

  • Page 112: Wiring Of The Terminal Board

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE GRS-CQ10Pd/NhG2-M, GRS-CQ12Pd/NhG2-M, GRS-CQ14Pd/NhG2-M, GRS-CQ16Pd/NhG2-M ◆ 4.10 Wiring of the Terminal Board (1) GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/NhG-K.GRS-CQ4.0Pd/NhG1-K, GRS- CQ6.0Pd/NhG1-K, GRS-CQ8.0Pd/NhG1-K 220-240VAC 220-240VAC 220-240VAC...
  • Page 113 Air-to-water Heat Pump Split Versati MONOBLOC TYPE (2) GRS-CQ10Pd/NhG-K, GRS-CQ12Pd/NhG-K, GRS-CQ14Pd/NhG-K, GRS-CQ16Pd/NhG-K.GRS-CQ10Pd/ NhG1-K, GRS-CQ12Pd/NhG1-K, GRS-CQ14Pd/NhG1-K, GRS-CQ16Pd/NhG1-K.GRS-CQ10Pd/NhG2-K, GRS-CQ12Pd/NhG2-K, GRS-CQ14Pd/NhG2-K, GRS-CQ16Pd/NhG2-K 220-240VAC 220-240VAC 220-240VAC (3) GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M.GRS-CQ10Pd/ NhG1-M, GRS-CQ12Pd/NhG1-M, GRS-CQ14Pd/NhG1-M, GRS-CQ16Pd/NhG1-M.GRS-CQ10Pd/NhG2-M, GRS-CQ12Pd/NhG2-M, GRS-CQ14Pd/NhG2-M, GRS-CQ16Pd/NhG2-M 220-240VAC 220-240VAC 220-240VAC...

  • Page 114: Wiring Of The 2-Way Valve

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.11 Wiring of the 2-Way Valve The 2-way valve 1 is required to control water flow for cooling or heating operation. The role of 2-way valve 1 is to cut off water flow into the underfloor loop when the fan coil unit is equipped for cooling operation. General Information Type Power...
  • Page 115 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Other Thermal Optional Monobloc Unit Water Temp. Sensor 3-Way Valve 2 2-Way Valve 1 Mixing Floor Valve Temp. Water Pump Tank Temp. of Heat pump system Water Tank EH Water Tank Step 2. Electric wiring work Other thermal L and N connect to XT3~21,22.

  • Page 116: Wiring Of Optional Electric Heater

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.13 Wiring of Optional Electric Heater Optional electric heater is allowed for the equipment and controlled in such a way when outdoor temperature is lower than the set point for startup of the optional electric heater. Step 1.

  • Page 117: Wiring Of The Gate-Controller

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Step 3. Wired controller setting Optional electric heater should be selected "1/2" group if necessary from COMMISION → FUNCTION,then set switch on (outdoor)temperature and control logic(1/2). 4.14 Wiring of the Gate-Controller If there is gate control function, installation guide follow as: 220-240VAC 4.15 Wiring of the Remote Air Temperature Sensor...

  • Page 118: Wiring Of The Thermostat

    (3) If it is the heating/cooling thermostat, please connect wire as per the figure above. CAUTION (d) 220V power supply can be provided to the thermostat by the Versati III heat pump. (e) Setting temperature by the thermostat(heating or cooling) should be within the temperature range of the product ;...

  • Page 119: Wiring Of The Control

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 4.17 Wiring of the Control Notes: the wired controller can be connected to the terminal of AP1 CN4 with the four-wire communication cable.

  • Page 120: Commissioning And Trial Run

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 5 Commissioning and Trial Run 5.1 Check before startup For safety of users and unit, the unit must be started up for check before debugging. The procedures are as below: The following items shall be performed by qualified repair persons. Confirm together with the sales engineer, dealer, installing contractor and customers for the following items finished or to be finished.
  • Page 121 Air-to-water Heat Pump Split Versati MONOBLOC TYPE 5.2 Test run Test run is testing whether the unit can run normally via preoperation. If the unit cannot run normally, find and solve problems until the test run is satisfactory. All inspections must meet the requirements before performing the test run.

  • Page 122: Test Operation & Troubleshooting & Maintenance

    When there is any error, solve it according to the troubleshooting flowchart covered in this manual. However, if the troubleshooting flowchart is still unhelpful, please contact GREE sales agent. 2 Error Code List...
  • Page 123 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Full Name Displayed Name Error Code Incorrect capacity DIP switch setting Capacity DIP Communication error between indoor and outdoor unit ODU-IDU Com. Drive communication error Drive com. High pressure sensor error HI-pre. sens. Enthalpy-enhancing sensor error En.

  • Page 124: Flow Chart Of Troubleshooting

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Full Name Displayed Name Error Code Drive board temperature sensor error Temp-driver AC contactor protection or input zero crossing error AC contactor Temperature drift protection Temp. drift Current sensor connection protection (current sensor not Sensor con.

  • Page 125: Comp Low- Pressure Protection E3

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.2 Comp Low- pressure Protection E3 Comp Low-pressure Protection E3 Replace comp Check if comp low-pressure switch low- pressure or rewire is broken or the wiring is loose. Check the fans Check if the fans stop running or reverse Repair the leakage of system pipe and add refrigerant Check if the system has leaked...

  • Page 126: Overload Protection Of Compressor Or Driver Error

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.4 Overload Protection of Compressor or Driver Error Comp Overload Protection Check if the AC Replace the AC contactor contactor is damaged Adjust the Check if the compressor compressor wiring wiring is correct Contact the power Check if the voltage is normal supply company...

  • Page 127: Temperature Sensor Error

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.6 Temperature Sensor Error Temperature Sensor Error Check if the plug Check the orientation on temperature sensor is correctly of plug and socket connected to the socket. Check if the resistance of Replace the temperature sensor is correct.

  • Page 128: Capacity Switch Error (Code:"C5")

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 3.8 Capacity Switch Error (Code:"C5") E5 is displayed on the wired controller Is the jumper Connect the jumper connected ? Is the number Connect the right of the jumper jumper right ? Is the jumper Tighten the jumper loose ? Replace the...
  • Page 129 Air-to-water Heat Pump Split Versati MONOBLOC TYPE IPM or PFC Over-temperature Protection(Code:"P8") ◆ “Overtemp.-mod.” is displayed on the wired controller P8 is displayed in the mainboard 88 Indicating Lamp Is the IPM or PFC module of the driver board AP4 tightened ? Tighten the IPM or Replace the...
  • Page 130 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Drive-to-main-control Communication Error(Code:"P6") ◆ “Drive-main com.” is Displayed on the wired controller P6 is displayed in the mainboard 88 Indicating Lamp Is the CPU tightened? Replace Tighten the CPU the driver board AP4 Work Normally Compressor Startup Failure(code:"LC") ◆...
  • Page 131 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Compressor Current Protection (Code:"P5"); Compressor Motor Desynchronizing (Code:"H7"); IPM ◆ Protection (Code:"H5"); Phase Loss (Code:"LD") “Com. over-curr.”, “Desynchronize”, “IPM defective” or “Phase loss” is Displayed on the wired controller P5、H7、H5 or LD is displayed in the mainboard 88 indicating lamp Is the...

  • Page 132: Daily Maintenance And Repair

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 5 Daily Maintenance and Repair 5.1 Daily Maintenance In order to avoid damage of unit, all protecting devices in the unit had been set before outgoing, so the user can never adjust or remove them. For the first startup of the unit or next startup of unit after long-period stop (above 1 day) by cutting off the power, please electrify the unit in advance to preheat the unit for more than 8hr Never put sundries on the unit and accessories.

  • Page 133: Repair

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE Malfunctions Reasons Troubleshooting 1.Enhance heat insulation efficiency of the 1.Poor heat insulation of water system. system. 2.Poor heat exchange of evaporator. 2.Check if air in or out of unit is normal and clean Poor efficiency of hot water heating evaporator of the unit.
  • Page 134 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Picture Name Function It is used to prevent the heat exchanger from being frozen owing to reduced water flow rate. When the flow rate goes Flow Switch down to the point at which the flow switch will act, the switch will trip off and the unit will raise an alarm and shut down.
  • Page 135 Air-to-water Heat Pump Split Versati MONOBLOC TYPE Pressure Meter Connection Pipe Vacuum pump Leak Detection Methods ◆ The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detector shall be used to detect flammable refrigerant, but the sensitivity may not be adequate, or may need re-calibration (Detection equipment shall be calibrated in a refrigerant-free area).

  • Page 136: Positioning Drawing Of The Water Pipes

    Air-to-water Heat Pump Split Versati MONOBLOC TYPE 6 Positioning drawing of the water pipes GRS-CQ6.0Pd/NhG-K GRS-CQ8.0Pd/NhG-K GRS-CQ10Pd/NhG2-K GRS-CQ12Pd/NhG2-K GRS-CQ14Pd/NhG2-K GRS-CQ16Pd/NhG2-K GRS-CQ10Pd/NhG2-M GRS-CQ12Pd/NhG2-M GRS-CQ14Pd/NhG2-M GRS-CQ16Pd/NhG2-M...
  • Page 137 Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com www.gree.com For continuous improvement in the products, Gree reserves the right to modify the product specification and appearance in this manual without notice and without incurring any oblication. JF00303839...

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