Cooper & Hunter GRS-C3.8/NbA-K Installation And Operation Manual Download Page 1

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Please read this manual carefully before using this product and keep it properly for future reference.

GRS-C3.8/NbA-K
GRS-C5.0/NbA-K

Direct & Circulating Air Source
Heat Pump Water Heater Technical

Air Source Heat Pump
Water Heater

Air Conditioners

Installation and Operation Manual

Designed by Cooper&Hunter International Corporation, Oregon, USA

www.cooperandhunter.com

MODEL

Summary of Contents for GRS-C3.8/NbA-K

Page 1: ...duct and keep it properly for future reference GRS C3 8 NbA K GRS C5 0 NbA K Air Source Heat Pump Water Heater Air Conditioners Installation and Operation Manual Designed by Cooper Hunter Internationa...

Page 2: ...in winter please keep 24hr power supply for the unit If it is not in used for a long time drain water in unit water tank and pipeline to avoid freeze crack If it is not convenient to operate the unit...

Page 3: ...on 12 6 2 Installation of Main Unit of Water Heater 12 6 3 Installation of Insulated Water Tank 13 6 4 Connection of Waterway System 14 6 5 Installation Sketch of Unit 15 6 6 Electric Connection 16 6...

Page 4: ...ischarge valve 1 A Instruction 1 A Joint 1 G 3 8 A Drainage joint 1 A Power cord with leakage module 1 A GRS C3 8 NbA K B GRS C5 0 NbA K Wrapping tape 1 A Wired controller 1 A Circulating water pipe D...

Page 5: ...t be 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 main unit and water tan...

Page 6: ...repair may cause electric shock or fire so you should contact the service center to repair Don t step on the top of the main unit or place anything on it There is the danger of fall of things or peop...

Page 7: ...width of circulating water outlet pipe mm DN20 Dimension of unit W D H mm 762 256 750 Net weight kg refer to the nameplate Noise dB A 50 52 Fuse Power supply 250V Rated current 15A Test conditions of...

Page 8: ...ter so it is a new kind of high efficiency energy saving and environment friendly product 4 2 Features of Unit High water outlet temp Max 70 hot water is cleaner and meets different requirements High...

Page 9: ...e cost Intelligent defrosting The unit with anti freezing and intelligent defrosting functions can efficiently solve the problems of heat exchanger which is easy to freeze or frost and difficult to de...

Page 10: ...1 Icons display of rapid hot water hot water prior aircon prior 2 Display of system time timer preset timer and running parameters 3 Icons display of heating up and standby for keep 4 Display of hot w...

Page 11: ...er Save Preset Night work As shown in the right figure it is under Hot water mode with rapid button has being pressed Hot water mode Water heater according to present water temp immediately starts up...

Page 12: ...ed Timer range 00 00 23 59 Every press of or timer s time increase or decrease by 1 hr or 1 min long press either of them and then timer s time automatically increases or decreases by 1 hr or 1 min pe...

Page 13: ...e by 1 hr or 1 min per 0 5 second as shown in the right figure 5 Special Functions Lock Function If without malfunction of the unit press and at the same time for 5s the wired controller will display...

Page 14: ...rence 5 5 Notices for Operation of Wired Controller Notices and Instructions 1 Never operate the unit with wet hand 2 Never knock throw or frequently disassemble the wired controller 3 The setting wat...

Page 15: ...An environment with special conditions Selection of Installation Location of Main Unit 1 A place where noise and airflow generated by air exhaust do not affect the neighbors animals and plants 2 Ensur...

Page 16: ...nd vertically within 3m from the main unit It can be installed on the balcony rooftop and floor or in the room 2 Standing water tank must be installed vertically with the bottom on the ground never su...

Page 17: ...thickness of 3 4mm being recommended If other insulated pipes are adopted refer to the above dimensions for out diameter and wall thickness 3 Installation of circulating water inlet outlet pipes Conn...

Page 18: ...outlet of main unit G3 4 Cooling water inlet of water tank G1 2 Circulating water inlet outlet of water tank G3 4 Hot water outlet of water tank G1 2 Pipe joint G3 4 Note Distance between main unit an...

Page 19: ...must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard An all pole disconnection switch having a contact separation of at least 3mm in all...

Page 20: ...ine is connected into correct port to avoid communication malfunction Installation of Wired Controller and Project Debugging No 1 2 3 4 5 Description Socket s base box installed in the wall Soleplate...

Page 21: ...utomatic discharge valve vertically installed Incomplete discharge may occur Have manual discharge valve and blow off outlet been closed Pipeline leaks and water tank is not full If heat preservation...

Page 22: ...till only water flowing out from manual discharge valve B After close of manual discharge valve B keep cleaning function for 5min and then press mode and to stop cleaning If manual discharge valve A...

Page 23: ...Methods of Refrigerant 1 Addition Method of Refrigerant Under hot water running mode add refrigerant directly Connect the flexible tube in the middle of refrigerant meter with refrigerant bottle and o...

Page 24: ...of Unit 9 1 Hot Water Yield During heating the water is heated by the unit absorbing heat energy from outside and then releasing it into the water in water tank Heating capacity may be reduced once ou...

Page 25: ...ck its performance press the switch once it breaks once If malfunction is confirmed replace or repair it timely 10 Cautions for Operation in Winter Cautions for Operation in Winter At low temp in wint...

Page 26: ...ve at water inlet of water tank and clean the water tank Close the cut off valve at drainage outlet till the water being drained becomes clean 6 Recharge the water tank with water and then discharge t...

Page 27: ...up of the unit after stop In order to protect the unit the unit will start in 3 min by controller of the unit if it is immediately restarted after stop There is water flowing sound during operation of...

Page 28: ...protection of compressor Water heater stops and wired controller displays E6 Communication malfunction Water heater stops and wired controller displays EH Adhering protection of auxiliary electric hea...

Page 29: ...Designed by Cooper Hunter International Corporation Oregon USA www cooperandhunter com E mail info cooperandhunter com...

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