Gree Versati III GRS-CQ1 OPd/NhG-K Owner'S Manual Download Page 1

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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 [email protected] for

the electronic version.

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

SPLIT TYPE

Summary of Contents for Versati III GRS-CQ1 OPd/NhG-K

Page 1: ...rcial 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 gre...

Page 2: ...and inspection which may impact the normal operation of unit please do not disassemble the unit by yourself You can contact with the special maintenance center of our company if necessary For personal...

Page 3: ...4 The method of calculating the charging pressure of expansion vessel 18 7 5 Selection of expansion vessel 19 8 Remote Air Temperature Sensor 20 9 Thermostat 21 10 2 Way Valve 21 11 3 Way Valve 22 12...

Page 4: ......

Page 5: ...ed service life five hazard or even severe injuries Special air conditions are required for where mentioned above NOTE SPLIT TYPE Air to water Heat Pump Safety Notices Please be sure to abide WARNING...

Page 6: ...hat on nameplate of unit and capacity of power supply power cord or socket is suitable for input power of this unit Special circuit must be adopted for power supply to prevent fire Do not use octopus...

Page 7: ...t Earthing the unit must be earthed reliably The earthing wire should connect with special device of buildings If not please ask the qualified personnel to install Furthermore don t connect earth wire...

Page 8: ...r cause stop of the unit and even fire Keep pressurized spray gas holder and so on away from the unit above 1m It may cause fire or explosion Please note whether the installation stand is firm enough...

Page 9: ...t Don t directly expose the unit under the corrosive ambient with water or dampness Don t operate the unit without water in water tank The air outlet inlet of unit cannot be blocked by other objects T...

Page 10: ...ures Item Minimum entering water pressures Maximum entering water pressures Cooling 0 05MPa 0 25MPa Heating Water heating The range of external static pressures at which the appliance was tested add o...

Page 11: ...or om ressor em em er eur in E nsion esse i ing e oor em er ure e u m o ressure o ressure s ich ro s ich ro coo ing he ign s i ui se r or S imming oor em er ure o s i ch S imming oo re urm em er ure e...

Page 12: ...alve the high temperature water in the system is connected with indoor fan coil and underground pipe and exchanges heat with the indoor air so that the indoor temperature increases to the required ran...

Page 13: ...disinfected When starting up the disinfection function and setting corresponding time to meet the requirement of disinfection mode the function will start After the setting temperature is reached this...

Page 14: ...Capacity Power supply Heating1 kW Heating2 kW GRS CQ4 0Pd NhG K 4 4 220 240VAC 1ph 50Hz GRS CQ6 0Pd NhG K 6 6 GRS CQ8 0Pd NhG K 7 5 7 GRS CQ10Pd NhG K 10 9 GRS CQ12Pd NhG K 12 11 GRS CQ14Pd NhG K 14...

Page 15: ...ature 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...

Page 16: ...uld be equipped with internal electric heater to to secure enough heat energy in the very cold days CASE 3 Connecting Sanitary Water Tank Under floor Coil and FCU Shut off value Remote room Thermostat...

Page 17: ...13 SPLIT TYPE Air to water Heat Pump 5 Main Components 1 GRS CQ4 0Pd NhG K GRS CQ6 0Pd NhG K GRS CQ8 0Pd NhG K...

Page 18: ...14 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: ...n of outdoor unit 6 2 1 Select installation location of outdoor unit 1 Outdoor unit must be installed on a firm and solid support 2 Outdoor unit shall be installed close to the indoor unit hence to mi...

Page 20: ...GRS CQ14Pd NhG M GRS CQ16Pd NhG M 1207 Description Unit inch No Name Remarks 1 Liquid side Service Valve 3 8 GRS CQ8 0 10Pd NaD K GRS CQ12 14Pd NaD M 2 Gas side Service Valve 5 8 GRS CQ8 0 10Pd NaD K...

Page 21: ...ng lift To avoid rusting do not knock the metal parts 7 Installation of Indoor Unit 7 1 Select installation location of indoor unit 1 Avoid direct sunshine 2 Ensure the hanger rod ceiling and building...

Page 22: ...system is lower than the maximum volume required in the above figure If it exceeds the range the expansion vessel does not meet the installing requirement Installation height 1 difference Water volum...

Page 23: ...lection of expansion vessel Formula V Volume of expansion vessel C Total water volume P1 Pre set pressure of expansion vessel P2 The highest pressure during running of the system that is the action pr...

Page 24: ...oor is approximately 1 5m c Remote air temperature sensor cannot be located where the area may be hidden when door is open d Remote air temperature sensor cannot be located where external thermal infl...

Page 25: ...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 3 If it is the heating cooling thermostat please connect wire as per the figur...

Page 26: ...common 2 Flow A means water flow from the indoor unit to under floor water circuit 3 Flow B means water flow from the indoor unit to sanitary water tank Follow steps below to wire the 3 way valve Foll...

Page 27: ...other reasons please follow steps below and nominal charged volume on the nameplate Discharging remove metal sheets of the outer casing connect a hose to the charging valve and then discharge refriger...

Page 28: ...with a siphon tube or not With siphon tube No siphon tube 15 Installation of Insulated Water Tank 15 1 Installation measure The insulated water tank should be installed and keep levelly within 5m and...

Page 29: ...end of the safety check valve should connect with tap water joint Connect the hot water pipe and water outlet of water tank with PPR pipe Safety check valve Tap water Note For safe use of water water...

Page 30: ...inal out diameter of dn25 and S2 5 series wall thickness of 4 2mm being recommended Cooling water inlet pipe and hot water outlet pipe of water tank should also be hot water pipe PPR pipe with nominal...

Page 31: ...lines can t be installed until water heater unit is fixed Do not let dust and other sundries enter into pipeline system during installation of connection pipes d After connection of all waterway pipel...

Page 32: ...for additional installation If circuit breakers with leakage protection are in use action response time must be less than 0 1 second leakage circuit must be 30mA b The above selected power cable diam...

Page 33: ...ric magnetic 2 way valve 1 is normally open X28 Electric magnetic 2 way valve 1 is normally closed X29 High power load control X30 High power load control X31 Electric magnetic 3 way valve 1 is normal...

Page 34: ...on to welding protection for the auxiliary electric heater 1 CN22 Detection to welding protection for the auxiliary electric heater 2 CN23 Detection to welding protection for the water tank electric h...

Page 35: ...xpansion valve 1 4 pin driving impulse output 5 pin 12V T_SENSOR2 1 2 environment 3 4 discharge 5 6 suction 1 2 hole pipe temperature 3 4 hole environment 5 6 hole exhaust T_SENSOR1 1 2 economizer inl...

Page 36: ...utput N OUT Neutral line output COMM Communication U To compressor phase U V To compressor phase V W To compressor phase W 2 GRS CQ10Pd NhG K GRS CQ12Pd NhG K GRS CQ14Pd NhG K GRS CQ16Pd NhG K Silk Sc...

Page 37: ...r pump CN19 Interface to the variable frequency water pump CN15 20K temperature sensor inlet water CN15 20K temperature sensor outlet water CN15 20K temperature sensor refrigerant liquid line CN16 20K...

Page 38: ...15V 5 pin control signal 6pin feedback signal FA 1 2 3 4 signals 5 power supply to EXV1 pipe electric expansion valve 1 4 pin driving impulse output 5 pin 12V FB 1 2 3 4 signals 5 power supply to EXV2...

Page 39: ...een Introduction AC L Live line input of the main board N 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 Neutral line...

Page 40: ...ne 5 L2 1 To PFC inductor yellow line 6 L2 2 To PFC inductor blue line 7 COMP Wiring board 3 pin DT 66BO1W 03 variable frequency 8 COMM Communication interface 1 3 3V 2 TX 3 RX 4 GND 9 DC BUS DC BUS P...

Page 41: ...wer load control X31 Electric magnetic 3 way valve 1 is normally open reserved X32 Electric magnetic 3 way valve 1 is normally closed reserved X33 Electric magnetic 3 way valve 2 is normally open wate...

Page 42: ...er 2 CN23 Detection to welding protection for the water tank electric heater CN24 Door guard detection CN25 Flow switch CN26 Reserved CN1 485 112V 4 pin CN2 485 1communiction without12V 4 pin CN3 485...

Page 43: ...4 pin driving impulse output 5 pin 12V T_SENSOR2 1 2 environment 3 4 discharge 5 6 suction 1 2 hole pipe temperature 3 4 hole environment 5 6 hole exhaust T_SENSOR1 1 2 economizer inlet 3 4 economize...

Page 44: ...ine L2 F drive board L3 F L3 F power supply output line L3 F drive board L3 F X9 to the grounding line W V U Silk Screen Specification W Connector to the compressor phase W U Connector to the compress...

Page 45: ...1 28 29 X20 4V YV1 KM3 2 19 20 30 CN23 SW CN25 H PRESS Electric component position map Other thermal N L 21 33 32 SP X23 22 3 CN3 42 CN7 DC MOTOR1 AP2 L XT5 XT4 HEAT 34 L1 AP4 AP3 Therm COOL 24 23 3 5...

Page 46: ...T2 XT1 Pump Control signal OUT 29 30 40 41 CN19 BN PUMP BU YEGN Earthing wire is available for iron clad motor while unavailable for plastic clad motor PE N L1 L1 L3 L2 12 13 14 15 16 17 18 19 20 21 2...

Page 47: ...l Coil Coil thermal Gate Pump Control controller signal OUT Air to water Heat Pump 2 GRS CQ10Pd NhG K GRS CQ12Pd NhG K GRS CQ14Pd NhG K GRS CQ16Pd NhG K Terminal board XT3 Terminal board XT4 Terminal...

Page 48: ...CQ14Pd NhG M GRS CQ16Pd NhG M Terminal board XT3 Terminal board XT4 220VAC Coil KM1 2 220VAC Coil KM2 2 220VAC Coil KM3 2 Other thermal Thermostat Gate controller Pump Control signal OUT Terminal boar...

Page 49: ...replenishing pipe proper 8 Are the nilometer of water tank water temperature indicator controller manometer pressure relief valve and automatic discharge valve etc installed and operated properly 9 D...

Page 50: ...ch may damage the unit 4 Apply the universal electric meter to measure the insulation resistance between each outdoor phase and earth as well as between phases Caution defective earthing may cause ele...

Page 51: ...ase adjust the hydraulics system pressure according to next item If the pressure is less than 0 5 bar please recharge the water immediately When recharging the hydraulics system pressure should be not...

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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