Gree Versati III GRS-CQ4.0Pd/NhG-K Owner's Manual
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Gree Versati III GRS-CQ4.0Pd/NhG-K Owner's Manual

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SPLIT TYPE
Change for life
Owner's Manual
Original Instructions
Air Conditioners
Air-to-water Heat Pump
Thank you for choosing commercial air conditioners. Please read
this Owner' s Manual carefully before operation and retain it for
future reference.
If you have lost the Owner's Manual,please contact the local agent
or visit www.gree.com or send an email to global@gree.com.cn for
the electronic version.
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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  • Page 1 Owner’ s Manual carefully before operation and retain it for future reference. If you have lost the Owner's Manual,please contact the local agent or visit www.gree.com or send an email to global@gree.com.cn for the electronic version. GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
  • Page 2 The final right to interpret for this instruction manual belongs to Gree Electric Appliances Inc. of Zhuhai.

  • Page 3: Table Of Contents

    Contents Safety Notices (Please be sure to abide ) ..............1 1. Diagram of the Operating Principle ................. 7 2. Operating Principle of the Unit ................8 3. Nomenclature ......................10 4. Installation Example ....................11 5. Main Components ....................13 6 Installation Guideline of Outdoor Unit ................

  • Page 5: Safety Notices (Please Be Sure To Abide )

    Air-to-water Heat Pump SPLIT TYPE Safety Notices (Please be sure to abide ) WARNING : If not abide strictly, it may cause severe damage to the unit or the people. NOTE: If not abide strictly, it may cause slight or medium damage to the unit or the people.
  • Page 6 Air-to-water Heat Pump SPLIT TYPE WARNING Once abnormality Don't operate the unit with Before likeburning smell occurs, wet hand. installation,please see please cut off the power if the voltage of local supply immediately and place accords with then contact with service that on nameplate center.
  • Page 7 Air-to-water Heat Pump SPLIT TYPE Before cleaning please cut The power supply must User can not change off the power supply. adopt special circuit with power cord socket leakage switch and enough without prior consent. capacity. Wiring working must be done by professionals.
  • Page 8 Air-to-water Heat Pump SPLIT TYPE Don't step on the top of the Never block the air inlet and Keep pressurized unit or place anything on it. outlet of unit. spray, gas holder and so on away from the unit above 1m . There is the danger of fall of things or people.
  • Page 9 Air-to-water Heat Pump SPLIT TYPE NOTE Before installation, please check if the adopted power is accordance with that listed on nameplate, and check the safety of power. The unit shall contact with the supply mains by a full disconnection device under overvoltage category Ⅲ...
  • Page 10 Air-to-water Heat Pump SPLIT TYPE maximum and minimum water operating temperatures. Maximum Minimum water operating water operating Item temperatures temperatures Cooling 7°C 25°C Heating 25°C 60°C Water heating 40°C 80°C maximum and minimum water operating pressures. Minimum water operating Maximum water Item pressures operating pressures...

  • Page 11: Diagram Of The Operating Principle

    □m□ien□ □em□ □□n un□i □e□ros□ □em□ □□her □in□□u□e he□□ e□ch□nger □herm□□ E□he□□er o□ ch□ssis E□□□ E□□□ High Pressure Sensor PHE in□e□ □em□ □□□ion□□ □□o□ □□□er s□i□ch □□□er S□□e □□□□□ □□□□□ □em□ □□□□□ □i□ui□ □□□□□er □um□ □□□□e □□□□e □□□□e s □ ensor □□□□e □...

  • Page 12: Operating Principle Of The Unit

    Air-to-water Heat Pump SPLIT TYPE Note: the swimming pool, solar kit and water mixing accessory are optional parts. When they are required, please contact the manufacturer. 2. Operating Principle of the Unit DC Inverter Air to Water Heat Pump is composed of outdoor unit, indoor unit and internal-fan coil water tank. Operation functions: Cooling;...
  • Page 13 Air-to-water Heat Pump SPLIT TYPE heating and switches to heating after finishing water heating. Emergency mode: this mode is only available for heating and water heating. When the outdoor unit stops due to malfunction, enter the corresponding emergency mode; as to heating mode, after entering the emergency mode, heating can only be realized through e-heater of the indoor unit.

  • Page 14: Nomenclature

    Air-to-water Heat Pump SPLIT TYPE 3. Nomenclature Description Options GREE G-GREE Air to water heat pump Heat Pump Water Heater Heating Mode S= Static; C=Circulating Function Q=Multi-function; Omit=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; Omit=On/Off...

  • Page 15: Installation Example

    Air-to-water Heat Pump SPLIT TYPE 4. Installation Example CASE 1: Connecting Under-floor Coil for Heating and Cooling Under-f loor c oil By-pass value(Field 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; (b) By pass valve must be installed to secure enough water flow rate,and by pass valve should be installed at the collector.
  • Page 16 Air-to-water Heat Pump SPLIT TYPE Notes (a) In this case, three-way valve should be installed and should be complied with installation of this manual; (a) Sanitary water tank should be equipped with internal electric heater to to secure enough heat energy in the very cold days.

  • Page 17: Main Components

    Air-to-water Heat Pump SPLIT TYPE 5. Main Components (1) GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/NhG-K...
  • Page 18 Air-to-water Heat Pump SPLIT TYPE (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...

  • Page 19: Installation Guideline Of Outdoor Unit

    Air-to-water Heat Pump SPLIT TYPE 6 Installation Guideline of Outdoor Unit 6.1 Instruction to installation (1) Installation of the unit must be in accordance with national and local safety codes. (2) Installation quality will directly affect the normal use of the air conditioner unit. The user is prohibited from installation.
  • Page 20 Air-to-water Heat Pump SPLIT TYPE (2) GRS-CQ4.0Pd/NhG-K , GRS-CQ6.0Pd/NhG-K , GRS-CQ8.0Pd/NhG-K , 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 1207 Description: Unit: inch Name Remarks Liquid-side Service Valve GRS-CQ8.0/10Pd/NaD-K, GRS-CQ12/14Pd/NaD-M Gas-side Service Valve GRS-CQ8.0/10Pd/NaD-K, GRS-CQ12/14Pd/NaD-M Handle...

  • Page 21: Installation Of Indoor Unit

    Air-to-water Heat Pump SPLIT TYPE 6.2.4 Precautions on installation of outdoor unit (1) When moving outdoor unit, it is necessary to adopt 2 pieces of long enough rope to hand the unit from 4 directions. Included angle between the rope when hanging and moving must be 40° below to prevent center of the unit from moving.

  • Page 22: Water Volume And Expansion Vessel Pressure

    Air-to-water Heat Pump SPLIT TYPE 7.3 Water volume and expansion vessel pressure Maximum total water volume(liter) Notes (a) The expansion vessel is 10 liter and 1bar pre-pressurized; (b) 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 23: Selection Of Expansion Vessel

    Air-to-water Heat Pump SPLIT TYPE 350L. (2) As the volume of water system is higher than 280L, it is necessary to adjust the pressure of the expansion vessel be lower. (3) The formula of calculating pressure (5) The maximum volume of the water system is about 410L. As the actual volume of the water system is 350L, the expansion vessel meets the installing requirement.

  • Page 24: Remote Air Temperature Sensor

    Air-to-water Heat Pump SPLIT TYPE 8. Remote Air Temperature Sensor Front side Back side Remote Air Temperature Sensor 1.5 Meters NO NO Doors Remote Air Environmen CN 8 Temp sensor Electric box Notes (a) Distance between the indoor unit and the remote air temperature sensor should be less than 15m due to length of the connection cable of remote air temperature sensor;...

  • Page 25: Thermostat

    Air-to-water Heat Pump SPLIT TYPE 9. Thermostat Installation of the thermostat is very similar to that of the remote air temperature sensor. Ⅲ Thermostat How to Wire Thermostat (1) Uncover the front cover of indoor unit and open the control box; (2) Identify the power specification of the thermostat, if it is 230V, find terminal block XT5 as NO.22~24 and block XT6 as NO.33~34;Otherwise, if it is 24V, find terminal block XT5 as NO.17~21;...

  • Page 26: Way Valve

    Air-to-water Heat Pump SPLIT TYPE 2-Way Valve 1 WARNING • Normal Open type should be connected to wire (ON) and wire (N) for valve closing in cooling mode. • Normal Closed type should be connected to wire (OFF) and wire (N) for valve closing in cooling mode. (ON) : Line signal (for Normal Open type) from PCB to 2-way valve (OFF) : Line signal (for Normal Closed type) from PCB to 2-way valve (N) : Neutral signal from PCB to 2-way valve...

  • Page 27: Gate-Controller

    Air-to-water Heat Pump SPLIT TYPE Other Thermal 13. Gate-controller If there is gate control function, installation guide follow as: Gate-Controller 14. Charging and Discharging of Refrigerant The unit has been charged with refrigerant before delivery. Overcharging or undercharging will cause the compressor to run improperly or be damaged.

  • Page 28: Installation Of Insulated Water Tank

    Air-to-water Heat Pump SPLIT TYPE Pressure Meter Connection Pipe Vacuum pump Note when vacuuming is finished, pressure inside the unit should be kept lower than 80Pa for at least 30 minutes to make sure there is no leak. Either charging valve 1 or charging valve 2 can be used for vacuuming. Charging: when vacuuming is finished and it is certain that there is no leak, charging can be done.

  • Page 29: Outline Dimension And Parameter Of Water Tank

    Air-to-water Heat Pump SPLIT TYPE hot water supply and drainage of water tank. Connection of inlet/outlet waterway: Connect the safety check valve attached with the unit (with the arrow on it pointing at the water tank) with the water inlet of water tank with PPR pipe according to the following figure, sealing with unsintered tape.

  • Page 30: Connection Of Waterway System

    Air-to-water Heat Pump SPLIT TYPE SXVD200LCJ/A-K SXVD200LCJ2/A-K SXVD300LCJ/A-K SXVD300LCJ2/A-K Model SXVD200LCJ/A-M SXVD200LCJ2/A-M SXVD300LCJ/A-M SXVD300LCJ2/A-M SXVD200LCJ/A-H SXVD200LCJ2/A-H SXVD300LCJ/A-H SXVD300LCJ2/A-H Litre 200L 200L 300L 300L coil specification SUS304 Ф22X0.8 coil length 18.5m 18.5m D(mm) D1(mm) H(mm) 1595 1620 A(mm) B(mm) C(mm) E(mm) F(mm) I(mm) J(mm)

  • Page 31: Electric Wiring Work

    Air-to-water Heat Pump SPLIT TYPE Indoor Unit Other Thermal sensor (less than 5 meters) Water Tank Hot water output Other Thermal System Temp Sensor 1 Safety check Filter valve Tap water temp sensor 2 Cool Water Inlet Blow-off Outlet Power cord of booster heater Cut-off Valve Description Joint pipe thread...
  • Page 32 Air-to-water Heat Pump SPLIT TYPE (4) Installer shall be responsible for any damage due to incorrect connection of the external circuit. (5) Caution --- MUST use copper wires. (6) Connection of power cable to the electric cabinet of the unit (7) Power cables should be laid out through cabling trough, conduit tube or cable channel.

  • Page 33: Wring Diagram

    Air-to-water Heat Pump SPLIT TYPE 16. Wring Diagram 16.1 Control Board (1) GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/NhG-K Silk Screen Introduction AC-L Live wire of power supply Neutral wire of power supply To the ground E-heater of water tank E-heater 1 E-heater 2 Assistant heat by 220VAC Reserved Electric heater for the plate-type heat exchanger...
  • Page 34 Air-to-water Heat Pump SPLIT TYPE CN15 20K temperature sensor (inlet water) CN15 20K temperature sensor (outlet water) CN15 20K temperature sensor (refrigerant liquid line) CN16 20K temperature sensor (refrigerant vapor line) CN16 10K temperature sensor (leaving water for the auxiliary electric heater) CN16 20K temperature sensor (reserved) 15K temperature sensor (room) (CN5)
  • Page 35 Air-to-water Heat Pump SPLIT TYPE Fuse 4-way valve VA-1 E-heater of chassis HEAT Electric heating tape 1-pin: fan power supply; 3-pin: fan GND; 4-pin: +15V; 5-pin:control signal; DC-MOTORO 6-pin:feedback signal; DC fan 1 pin: strong power supply; 3 pin: fan GND; 4 pin: +15V;...
  • Page 36 Air-to-water Heat Pump SPLIT TYPE N- OUT CO M L- OUT AC- L Silk Screen Introduction AC-L Live line input Neutral line input L-OUT Live line output N-OUT Neutral line output COMM Communication To compressor phase U To compressor phase V To compressor phase W (2) GRS-CQ10Pd/NhG-K , GRS-CQ12Pd/NhG-K , GRS-CQ14Pd/NhG-K , GRS-CQ16Pd/NhG-K Silk Screen...
  • Page 37 Air-to-water Heat Pump SPLIT TYPE To the ground E-heater of water tank E-heater 1 E-heater 2 Assistant heat by 220VAC Reserved Electric heater for the plate-type heat exchanger Reserved Electric magnetic 2-way valve 1 is normally open Electric magnetic 2-way valve 1 is normally closed High-power load control High-power load control Electric magnetic 3-way valve 1 is normally open (reserved)
  • Page 38 Air-to-water Heat Pump SPLIT TYPE AC-L AC-N 4V HEAT VA-1 H_PRESS COM-ESPE1 COM-ESPE2 PWR1 DC-MOTORO1 DC-MOTORO T-SENSOR3 T-SENSOR2 T-SENSOR1 Silk Screen Introduction AC-L Live wire input of power supply Neutral wire input of power supply PWR1 310V Supply 310V DC power to the drive Fuse 4-way valve VA-1...
  • Page 39 Air-to-water Heat Pump SPLIT TYPE COM_ESPE1 1-pin:+3.3V, 2-pin:TXD, 3-pin:RXD, 4-pin:ground COM_ESPE2 1-pin:+3.3V, 2-pin:TXD, 3-pin:RXD, 4-pin:ground 1-pin: ground, 2-pin:+18V, 3-pin:+15V E E1 N-OUT L-OUT DC-BUS AC-L Silk Screen Introduction AC-L Live line input of the main board Neutral line of the power supply for the main board L-OUT Live line output of the filter board (to the drive and main boards) N-OUT...
  • Page 40 Air-to-water Heat Pump SPLIT TYPE COMM DC-BUS1 L2-1 L1-2 COMP L2-2 L1-1 AC-L DC-BUS Silk Screen Introduction AC-L L-OUT Live line input of the filter board N-OUT Neutral line input of the filter board L1-1 To PFC inductor brown line L1-2 To PFC inductor white line L2-1...
  • Page 41 Air-to-water Heat Pump SPLIT TYPE Silk Screen Introduction AC-L Live wire of power supply Neutral wire of power supply To the ground E-heater of water tank E-heater 1 E-heater 2 Assistant heat by 220VAC Reserved Electric heater for the plate-type heat exchanger Reserved Electric magnetic 2-way valve 1 is normally open Electric magnetic 2-way valve 1 is normally closed...
  • Page 42 Air-to-water Heat Pump SPLIT TYPE CN16 10K temperature sensor (leaving water for the auxiliary electric heater) CN16 20K temperature sensor (reserved) 15K temperature sensor (room) (CN5) 10K temperature sensor (room) (CN6) Temperature sensor Temperature sensor (CN9) Temperature sensor (CN8) CN20 Thermostat CN21 Detection to welding protection for the auxiliary electric heater 1...
  • Page 43 Air-to-water Heat Pump SPLIT TYPE 1-pin: fan power supply; 3-pin: fan GND; 4-pin: +15V; 5-pin:control signal; DC-MOTORO 6-pin:feedback signal; DC fan 1 pin: strong power supply; 3 pin: fan GND; 4 pin: +15V; 5 pin: control signal; 6pin:feedback signal; 1-pin: fan power supply;3-pin: fan GND; 4-pin: +15V; 5-pin: control signal; DC-MOTORO1 6-pin: feedback signal;...
  • Page 44 Air-to-water Heat Pump SPLIT TYPE Silk Screen Specification AC-L1 power supply input L1 AC-L2 power supply input L2 AC-L3 power supply input L3 power supply input neutral line power supply output line neutral line L1-F power supply output line L1-F (drive board L3-F) L2-F power supply output line L2-F (drive board L3-F) L3-F...

  • Page 45: Electric Wiring

    Air-to-water Heat Pump SPLIT TYPE 17.2 Electric Wiring 17.2.1 Wiring principle Refer to Section 15.4. 17.2.2 Electric wiring The wiring diagram stuck to the unit always prevails. (1) GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K, GRS-CQ8.0Pd/NhG-K CODE NAME Main Board Only For RT6 Power Indoor unit Main Board Outdoor unit Main Board Drive Board COMP...
  • Page 46 Air-to-water Heat Pump SPLIT TYPE (3) GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M Power CODE NAME X1(AC-L1) X5(L1-F) Main Board Only For RT6 Indoor unit Main Board X2(AC-L2) X6(L2-F) Outdoor unit Main Board X3(AC-L3) X7(L3-F) Filter Board X4(N) X11(L1) Drive Board X8(N-F) COMP Compressor XT5 XT5 Bottom band heater...
  • Page 47 Air-to-water Heat Pump SPLIT TYPE (2) GRS-CQ10Pd/NhG-K, GRS-CQ12Pd/NhG-K, GRS-CQ14Pd/NhG-K, GRS-CQ16Pd/NhG-K Terminal board XT3 Terminal board XT4 23 24 25 26 27 28 29 30 12 13 14 15 16 17 18 19 20 21 22 Thermostat Pump Control 220VAC KM1-2 220VAC KM2-2 220VAC KM3-2 Gate- Other controller signal (OUT)
  • Page 48 Air-to-water Heat Pump SPLIT TYPE (3) GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M Terminal board XT3 Terminal board XT4 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Thermostat Gate- Pump Control KM1-2 220VAC KM2-2 220VAC KM3-2 220VAC...

  • Page 49: Commissioning

    Air-to-water Heat Pump SPLIT TYPE 18. Commissioning 18.1 Check before startup For safety of users and unit, the unit must be started up for check before debugging. The procedures are as below: √ If the contents of Application for Installation of this Unit by Installer are real. If not, debugging will be □...

  • Page 50: Test Run

    Air-to-water Heat Pump SPLIT TYPE 18.2 Test run solve problems until the test run is satisfactory. All inspections must meet the requirements before performing the test run. Test run should follow the content and steps of the table below: Start up the pretest procedure Notice: before test, ensure that all power must be cut off, including the far- end power switch, otherwise, it may cause casualty.

  • Page 51: Refrigerant Collecting

    “-30”. In this case, the water tank would installed, the water tank must be set to ‘’With”, otherwise GREE will not be responsible for this abnormal operation.
  • Page 52 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn www.gree.com...

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