Gree GRS-CQ12Pd/NaB-K Owner'S Manual Download Page 41

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Air-to-water Heat Pump

19.2.2.4 Terminal board information

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GRS-CQ12Pd/NaB-K, GRS-CQ14Pd/NaB-K, GRS-CQ16Pd/NaB-K:

345678

01 11 21 31 41 51 61 71 81 92 0

Terminal Board 1

power supply for Water

tank electric heater

N(2)

Connecting external electric

power supply for Indoor Unit

Terminal Board 2

Terminal board 3

Thermostat(1)

2 way value(2)

2 way value(1)

3 way value(1)

3 way value(2)

10 11 12

16 17 18 19 20

Connection for Client

water's AC contactor

Connection for

Indicating lihgt

Connection for

Accident lihgt

Gate Control Fuction

Summary of Contents for GRS-CQ12Pd/NaB-K

Page 1: ...ife Thank you for choosing Commercial Air Conditioners please read this owner s manual carefully before operation and retain it for future reference Air to water Heat Pump Commercial Air Conditioners Owner s Manual ...

Page 2: ... 9 1 Select installation location of indoor unit 12 9 2 Install process of indoor unit 13 9 3 Outline dimension of indoor unit 14 9 4 Space requirements for installation 15 9 5 Precautions on installation of indoor unit 15 9 6 Water volume and pump capacity with pump 15 9 7 Water volume and expansion vessel pressure 16 9 8 The method of calculating the charging pressure of expansion vessel 16 9 9 ...

Page 3: ...ion of Insulated Water Tank 24 18 1 Installation measure 24 18 2 Outline dimension and parameter of water tank 25 18 3 Connection of waterway system 26 18 4 Electric wiring work 27 19 Wring Diagram 29 19 1 PCB outline 29 19 2 Electric wiring work 33 20 Debugging Operation of Unit 40 20 1 Check before startup 40 20 2 Test run 41 21 Daily Operation and Maintenance 42 22 Operation Range 44 ...

Page 4: ...ized unless there is not any problem in check Ensure periodical clean and maintenance of the unit after normal operation of the unit for longer life and reliable operation For improvement of products there should be not additional notice of amendment of the contents This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of ...

Page 5: ...t m u s t b e adopted for power supply to prevent fire Do not use octopus multipurpose plug or mobile terminal board for wire connection Be sure to pull out the power plug and drain the indoor unit and water tank when unit is not in use for a long time Otherwise the accumulated dust may cause overheating fire or freeze of water tank or coaxial heater exchanger in winter Never damage the electric w...

Page 6: ...or place anything on it There is the danger of fall of things or people Never block the air inlet and outlet of unit It may reduce efficiency or 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 or not If damaged it may cause fall of the unit and injur...

Page 7: ...ecting parts to avoid fading 9 The power cord must be separated with the communication line If there is any question please contact with local dealer authorized service center agencies or our company directly 3 Diagram of the Operating Principle R3T gas line temperature sensor 17 15 16 INDOOR UINT OUTDOOR UINT M M M M 1 2 3 4 5 6 7 8 10 11 20 19 5 18 12 1 compressor 2 four way valve 3 finned coil ...

Page 8: ... requirement Through the control of valve the high temperature water in the system is connected with the coil pipe of bearing water tank and exchanges heat with the water in the water tank so that the temperature of water tank increases to the required range Cooling water heating when cooling mode exists together with the water heating mode the user can set the priority of these two modes based on...

Page 9: ... reduce the running noise via automatic control Floor commissioning this function is intended to preheat the floor periodically for the initial use Air removal of the water system this function is intended to replenish water and remove air in the water system to make the equipment run at the stabilized water pressure 5 Nomenclature G RS C Q 16 Pd Na B K O 1 2 3 4 5 6 7 8 9 10 NO Description Option...

Page 10: ...ote Type of thermostat and specification should be complied with installation of this manual By pass valve must be installed to secure enough water flow rate and by pass valve should be installed at the collector CASE 2 Connecting Sanitary Water Tank Shut off value By pass value Field supply Remote room Thermostat Field supply High temperature line Low temperature line T B 3 way value Field supply...

Page 11: ...days CASE 3 Connecting Sanitary Water Tank and Heat Emitters for Heating and Cooling Indoor Outdoor Booster heater Sanitary water tank Under floor coil Radiator Shut off value By pass value Field supply Remote room Thermostat Field supply High temperature temperature line line T B 3 way value Field supply B FCU 1 FCU2 M T M 2 way value Field supply Two way valve is very important to prevent dew co...

Page 12: ...2Pd NaB K I GRS CQ14Pd NaB K I GRS CQ16Pd NaB K I GRS CQ12Pd NaB M I GRS CQ14Pd NaB M I GRS CQ16Pd NaB M I External Air Vent Electric Heater Plate Heat Exchanger Control Box Control Panel Water Pressure Gage Flow Switch Water Pump Expansion Tank Safety Valve Internal ...

Page 13: ...to water Heat Pump 10 7 2 Outdoor unit GRS CQ12Pd NaB K O GRS CQ14Pd NaB K O GRS CQ16Pd NaB K O GRS CQ12Pd NaB M O GRS CQ14Pd NaB M O GRS CQ16Pd NaB M O External Compressor Control Box DC Fan Motor Internal ...

Page 14: ...ion 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 minimize the length and bends of cooling pipe 3 Avoid placing the outdoor unit under window or between two constructions hence to prevent normal operating noise from entering the room 4 Air flow at inlet and outlet shall not be blocked 5 Inst...

Page 15: ...talling 3 Outdoor unit should be installed on concrete base that is 10cm height 4 Requirements on installation space dimension of unit s bodies are shown in following drawing 5 Outdoor unit must be lifted by using designated lifting hole Take care to protect the unit during lift To avoid rusting do not knock the metal parts 9 Installation of Indoor Unit 9 1 Select installation location of indoor u...

Page 16: ... Heat Pump 13 9 2 Install process of indoor unit Step1 Drilling hole on the wall in the following draw 500 463 900 823 unit outline expansion bolt hole Step2 Releasing screws detach front cover from the indoor unit ...

Page 17: ...st two persons should be joined Weight of the indoor unit is more than 50kg The indoor unit must be installed vertically to the ground and fastened securely Before commissioning the dust proof cap of the automatic relief valve must be loosened other than entirely being removed away and it can be tightened in case that it leaks 9 3 Outline dimension of indoor unit 500 324 900 ...

Page 18: ... the indoor unit away from heat sources like heat sink and so on in the room as much as possible 3 Keep the indoor unit as close as possible to outdoor unit Level distance between connection pipes can not exceed 30m 8 0 16KW or 20m 6 0kw and vertical distance can not exceed 15m 8 0 16KW or 10m 6 0kw 9 6 Water volume and pump capacity with pump maximum speed 8 7 6 5 4 3 2 1 0 20 40 60 80 100 120 0 ...

Page 19: ...as follows During installation if the volume of water system has changed please check if the pre set pressure of the expansion vessel needs to be adjusted according to the following formula Bar H the difference between installing location of indoor unit and the highest spot of water system Ensure that the volume of water system is lower than the maximum volume required in the above figure If it ex...

Page 20: ... the actual volume of the water system is 350L the expansion vessel meets the installing requirement 4 Adjust the pre set pressure of the expansion vessel from 1 0Bar to 0 3Bar 9 9 Selection 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 pressure of safety ...

Page 21: ...avoid condensate dew or water leakage on connecting pipe the air pipe and liquid pipe must be wrapped with heat preservation material and adhesive pipe for insulation from the air 2 The joints on indoor unit and outdoor unit must be wrapped with heat preservation materials and have no clearance against the wall surface of indoor unit and outdoor unit 3 Wrap the pipe with tapes 1 Use the adhesive t...

Page 22: ...14Pd NaB M 5 8 3 8 5m 30m 0m 15m 50g m GRS CQ16Pd NaB M 5 8 3 8 5m 30m 0m 15m 50g m Note No additional charge of the refrigerant is need when the pipe length is less than 10 m if the pipe length is longer than 10m additional charge of the refrigerant is needed according to the table Example If 16kw model is installed at a distance of 25m 25 10 50 750g refrigerant should be added Rated capacity is ...

Page 23: ...able of remote air temperature sensor Height from floor is approximately 1 5 meter Remote air temperature sensor can not be located where the area may be hidden when door is open Remote air temperature sensor can not be located where external thermal influence may be applied Remote air temperature sensor should be installed where space heating is mainly applied After the Remote air temperature sen...

Page 24: ...pe thermostat Never connect external electric loads such as valves fan coil units etc If connected PCB of the indoor unit can be seriously damaged Installation of Thermostat is very similar to that of Remote air temperature sensor 13 2 Ways Valve 2 way valve is required to control water flow while cooling operation Role of 2 way valve is to cut off water flow into under floor loop in cooling mode ...

Page 25: ...Type Power Operating Mode Supported SPDT 3 wire 230V 50Hz AC Selecting Flow A between Flow A and Flow B Yes Selecting Flow B between Flow B and Flow A Yes 1 SPDT Single Pole Double Throw Three wires consist of Live1 for selecting for selecting Flow B and Neutral for 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 ...

Page 26: ... outdoor unit has been filled with refrigerant Additional refrigerant may be filled when carrying out site connection of pipelines 2 Check the liquid valve and the gas valve of the outdoor unit The valves shall be completely shut off 3 Connect a vacuum pump to the liquid valve and the gas valve of the outdoor unit to remove air from the inside of the indoor unit and the connecting pipe Refer to th...

Page 27: ...as shown in the following figure Weight capacity of water tank during installation should also be considered Fix with bolts Water tank Installed on the ground and never suspended The minimum clearance from the water tank to combustible surface must be 500mm There should be water pipe hot water joint and floor drain near the water tank in favor of water replenishment hot water supply and drainage o...

Page 28: ...LCJ A K SXVD200LCJ2 A K SXVD300LCJ A K SXVD300LCJ2 A K 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 M 10m 10m N 13m 13m 18 5m 18 5m D mm 540 620 D1 mm 438 528 H mm 1595 1620 A mm 272 280 B mm 105 C mm 112 E mm 432 464 F mm 431 399 I mm 80 95 J mm 24...

Page 29: ...t outlet pipes Connect the water inlet of unit with circulating outlet of water tank and water outlet of unit with circulating inlet of water tank 4 Installation of water inlet outlet pipes of water tank Safety check valve on the valve body points at water tank filter and cut off valve must be installed for water inlet pipe according to the installation sketch of unit At least a cut off valve is n...

Page 30: ...evice for pipeline to prevent the pipeline from freezing Hot water supplied from insulated water tank depends on pressure of water tap so there must be supply of tap water During using the cut off valve of cooling water inlet of water tank should be kept normally on 18 4 Electric wiring work 18 4 1 Wiring principle General principles Wires equipment and connectors supplied for use on the site must...

Page 31: ...tion 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 The power supply must be of rated voltage of the unit and special electrical line for air conditioning All electrical installation shall be carried out by professional technicians in accordance with the local laws and regulations Ensure safe ground...

Page 32: ...signal DC_MOTOR2 DC fan 1 pin strong power supply 3 pin fan GND 4 pin 15V 5 pin control signal 6 pin feedback signal 4V1 4 way valve HEAT electric heating tape VA 1 e heater of chassis HPP high pressure switch LPP low pressure switch T SENSOR2 1 2hole pipe temperature 3 4hole environment 5 6 hole exhaust T SENSOR3 1 hole 3 3V 2 hole detection suction temperature sensor CN66 CN67 communication cabl...

Page 33: ...D 4 pin 15V 5 pin control signal 6 pin feedback signal 4V1 4 way valve HEAT electric heating tape VA 1 e heater of chassis HPP high pressure switch LPP low pressure switch T SENSOR2 1 2hole pipe temperature 3 4hole environment 5 6hole exhaust T SENSOR3 1 hole 3 3V 2 hole detection suction temperature sensor CN66 CN67 communication cable 2 pin B 3 pin A CN65 communication cable 1 pin earthed 2 pin ...

Page 34: ... X13 live wire of indoor water pump PUMP2 X14 live wire of solar water pump RUN X15 running indicator HEAT3 L X16 e heater of water tank HEAT1 L X17 e heater of indoor unit 1 HEAT2 L X18 e heater of indoor unit 2 ERR X19 error indicator 2V1_OFF X5 Electric magnetic 2 way valve1 is normally closed 2V1_ON X6 Electric magnetic 2 way valve1 is normally open 2V2_OFF X7 Electric magnetic 2 way valve2 is...

Page 35: ...er tank adhesion proof protection detector OVC HEAT1 CN26 e heater of indoor unit1 adhesion proof protection detector OVC HEAT2 CN27 e heater of indoor unit2 adhesion proof protection detector IN SW CN25 detection input of water flow switch COM MANUAL CN6 connect the wired controller COM OUT CN5 connect to outdoor unit TR OUT1 CN2 transformer output 1 TR OUT2 CN3 transformer output 2 TR IN CN1 220...

Page 36: ...ler shall be responsible for any damage due to incorrect connection of the external circuit of the unit Caution Must use copper wires 2 Connection of power cable to the electric cabinet of the unit Power cables should be laid out through cabling trough conduit tube or cable channel Power cables to be connected into the electric cabinet must be protected with rubber or plastic to prevent scratch by...

Page 37: ... N 1 EH1 EH2 CN6 4 Water tank Auxiliary electric heater CODE NAME KM1 KM2 KM3 M EH1 2 Auxiliary electric heater 1 2 AC contactor Water PUMP Auxiliary electric heater 1 2 heater AC contactor Water tank XT1 2 3 Terminal block 1 3 4 7 9 SW RT1 RT2 RT3 RT5 RT6 RT7 RT4 Water tank temp sensor2 Water tank temp sensor1 RT8 RT9 Water out temp sensor Remote Air temp sensor AP KM1 KM2 KM3 XT1 TC 21 22 23 24 ...

Page 38: ...Air to water Heat Pump 35 19 2 2 2 Wiring diagram outdoor unit GRS CQ12Pd NaB K O GRS CQ14Pd NaB K O GRS CQ16Pd NaB K O GRS CQ12Pd NaB M O GRS CQ14Pd NaB M O GRS CQ16Pd NaB M O ...

Page 39: ...Air to water Heat Pump 36 19 2 2 3 Wiring diagram indoor and outdoor unit including field wiring GRS CQ12Pd NaB K GRS CQ14Pd NaB K GRS CQ16Pd NaB K ...

Page 40: ...Air to water Heat Pump 37 GRS CQ12Pd NaB M GRS CQ14Pd NaB M GRS CQ16Pd NaB M ...

Page 41: ...Water tank electric heater N 2 1 N L Connecting external electric power supply for Indoor Unit Terminal Board 2 Terminal board 3 27 28 23 22 21 Thermostat 1 24 25 26 6 5 4 2 way value 2 2 way value 1 1 9 8 7 3 way value 1 3 way value 2 10 11 12 15 14 13 16 17 18 19 20 Connection for Client water s AC contactor Connection for Indicating lihgt Connection for Accident lihgt Gate Control Fuction ...

Page 42: ...Terminal Board 1 Terminal board 3 27 28 23 22 21 Thermostat 1 Thermostat 2 24 25 26 29 30 31 power supply for water tank eletric heater 6 5 4 2 way value 2 2 way value 1 1 9 8 7 3 way value 1 3 way value 2 10 11 12 15 14 13 16 17 18 19 20 Connection for Client water s AC contactor Connection for Indicating lihgt Connection for Accident lihgt Gate Control Fuction ...

Page 43: ...es and water replenishing pipe are proper 8 Check if nilometer of water tank water temperature indicator controller manometer pressure relief valve and automatic discharge valve etc are installed and operate properly 9 Check if power supply accords with the nameplate and model of power cord conform to applicable requirements 10 Check if power supply and control wiring is connect properly according...

Page 44: ...cation Recheck the phase sequence before start up to avoid inversion of the compressor which may damage the unit 4 Apply universal electric meter to measure the insulation resistance between each outdoor phase and earth as well as between phases Caution defective earthing may cause electric shock No Ready to start 1 Cut off all of temporary power supply resume all the insurance and check the elect...

Page 45: ...han 0 5 bar please recharge the water immediately When recharging the hydraulics system pressure should be not more than 2 5Bar Troubleshooting Malfunctions Reasons Troubleshooting Compressor does not start up Power supply has problem Connection wire is loose Malfunction of mainboard Malfunction of compressor Phase sequence is reverse Check out and re fix Find out the reasons and repair Replace co...

Page 46: ...ror Sensor RT F0 Water flow swich protection WS protection EC Welding protection of the auxiliary heater 1 Auxi heater 1 EH Welding protection of the auxiliary heater 2 Auxi heater 2 EH Welding protection of the water tank heater Auxi WTH EH Under voltage DC bus or voltage drop error DC under vol PL Over voltage DC bus DC over vol PH AC current protection input side AC curr pro PA IPM defective IP...

Page 47: ...Air to water Heat Pump 44 22 Operation Range Mode Range of Outdoor Temperature C Heating 20 35 Cooling 10 48 Water heating 20 45 ...

Page 48: ...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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