Gree GKH18K3HI Owner'S Manual Download Page 35

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Cassette Type Air Conditioner Unit

Power lines should go along the right side plate and be fixed to the fixation hook

with binding wires to keep no contact with pipelines. Communication lines between

indoor and outdoor units also should go along the right side plate and keep away from

power lines.

5 Installation of Controllers

Refer to the Installation Manual of the controller for more details.

6 Test Running

6.1 Trial Operation and Testing

(1).

The meaning of error codes as shown below:

Table 6.1

Number

Error code

Error

Remarks

Compressor high pressure protection

Indoor anti-freeze protection

Compressor low pressure protection, refrigerant lack

protection and refrigerant colleting mode

Compressor high discharge temperature protection

Communication error

Full water protection

Indoor ambient temperature sensor error

Evaporator temperature sensor error

Condenser temperature sensor error

Outdoor ambient temperature sensor error

Discharge temperature sensor error

Temperature sensor error of wired controller

Compressor overload protection

Overloading

4-way valve direction changing protection

Outdoor unit capacity code error

Indoor unit capacity code error

Note:

When the unit is connected with the wired controller, the error code will be simultaneously shown

Summary of Contents for GKH18K3HI

Page 1: ...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 email to global gree com cn or electronic version GREE reserves the right to interpret this manual which will be subject to any change due to product improvement without further notice GREE Electric Appliances Inc of Zhuhai reserves...

Page 2: ...ice center as soon as possible and provide the following information Content on the nameplate model number cooling capacity production code ex factory date Malfunction details before and after the malfunction occurs 5 Each unit has been strictly tested and proved to be qualified before ex factory In order to prevent units from being damaged or operating normally because of improper disassembly ple...

Page 3: ...Unit 9 4 1 Installation of the Indoor Unit 9 4 2 Installation of the Outdoor Unit 12 4 3 Installation of the Connection Pipe 14 4 4 Vacuum and Gas Leakage Inspection 18 4 5 Installation of the Drain Hose 20 4 6 The Panel Installation 25 4 7 Electrical Wiring 27 5 Installation of Controllers 32 6 Test Running 32 6 1 Trial Operation and Testing 32 6 2 Working Temperature Range 33 7 Troubleshooting a...

Page 4: ...ng rules or code of practice Insufficient capacity or incomplete electrical work may cause electrical shock or fire 6 Be sure to use a dedicated power circuit Never use a power supply shared by another appliance 7 For wiring use a cable length enough to cover the entire distance with no connection Do not use an extension cord Do not put other loads on the power supply use a dedicated power circuit...

Page 5: ...nstruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision 18 This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been g...

Page 6: ...Cassette Type Air Conditioner Unit 3 2 Outline of the Unit and Main Parts Fig 2 1 ...

Page 7: ...on the cabinet of the unit 3 Washer 10 To be used together with the hanger bolt for installing the unit 4 installation paperboard 1 used for ceiling drilling 5 Gasket mounting board 4 Used to prevent gasket from falling off 6 Wireless Controller Battery 1 2 To control the indoor unit 7 sealing plaster 1 8 Fastener 4 To fasten the sponge 9 Insulation 1 To insulate the gas pipe 10 Insulation 1 To in...

Page 8: ... shall not be installed in the laundry Decide the installation location with the customer as follows 3 2 1 Indoor Unit Select an installation site where the following conditions are fulfilled and that meets your customer s approval 1 Obstruct should be put away from the intake or outlet vent of the indoor unit so that the airflow can be blown through all the room 2 Make sure that the installation ...

Page 9: ...l the unit where it will not be tilted by more than 5 During installation if the outdoor unit has to be exposed to strong wind it must be fixed securely If possible do not install the unit where it will be exposed to direct sunlight If necessary install a blind that does not interfere with the air flow 1 Install the outdoor unit in a place where it will be free from being dirty or getting wet by r...

Page 10: ...the connection pipe Table 3 4 Item Model Size of Fitting Pipe Inch Max Pipe Length m Max Height Difference between Indoor Unit and Outdoor Unit m Drainage pipe Outer Diameter wall thickness mm Liquid Gas GKH18K3HI GUHN18NK3HO 1 4 1 2 15 15 φ 26 3 GKH24K3HI GUHN24NK3HO 3 8 5 8 15 15 φ 33 4 GKH30K3HI GUHN30NK3HO 3 8 5 8 30 15 GKH36K3HI GUHN36NM3HO 3 8 3 4 30 15 GKH42K3HI GUHN42NM3HO 1 2 3 4 30 30 GK...

Page 11: ...t device with a contact gap of at least 3 mm in all poles nearby the units Both indoor unit and outdoor unit The appliance must be positioned so that the plug is accessible The specifications of the breaker and power cable listed in the Table above are determined based on the maximum power maximum amps of the unit The specifications of the power cable listed in the Table above are applied to the c...

Page 12: ...ne Take 2 pieces of power cord of 0 75 mm as the communication lines between the wired controller and the indoor unit with their longest lengths of 30m Please select the appropriate line length as per the actual installation conditions The communication lines can not be twisted together It s recommended to use 8m long communication line The wire size of the communication line should be no less tha...

Page 13: ... H I J GKH18K3HI 670 595 599 562 135 240 665 234 562 491 For the units 24k 60k Bottom face of ceiling B A C D E F Fig 4 2 Table 4 2 Item Model A B C D E F GKH24K3HI 950 840 784 728 135 240 GKH30K3HI GKH36K3HI 950 850 776 712 134 325 GKH42K3HI GKH48K3HI GKH60K3HI 950 840 770 680 134 290 ...

Page 14: ... gasket anchor board can be helpful 2 Install the paper template on the unit and fix the drain pipe at the outlet vent 3 Adjust the unit to the best position 4 Check if the unit is installed horizontally at four directions If not the water pump and the float switch would function improperly and even lead to water leakage 5 Remove the gasket anchor board and tighten the nut remained 6 Remove the pa...

Page 15: ...eling The water level test must be done after installing the indoor unit to make the unit is horizontal as shown below Horizontal tester Fig 4 7 4 2 Installation of the Outdoor Unit WARNING Install the unit where it will not be tilted by more than 5 During installation if the outdoor unit has to be exposed to strong wind it must be fixed securely ...

Page 16: ...te Drainage of the Outdoor Unit Note Only for the heat pump unit 1 It is required to install a drain pipe for the outdoor unit to drain out the condensate water during heating operation only for the heat pump unit 2 When installing the drain pipe apart from the drain pipe mounting hole all other holes should be plugged so as to avoid water leakage only for the heat pump unit 3 Installation Method ...

Page 17: ...ent cuttings from entering the pipe 3 Remove the flare nuts at the stop valve of the outdoor unit and inside the accessory bag of the indoor unit then insert them to the connection pipe after that flare the connection pipe with a flaring tool 4 Check if the flare part is spread evenly and there are no cracks see Fig 4 10 d2 d1 d1 d2 90 1 Fig 4 10 4 3 2 Bending Pipes 1 The pipes are shaped by your ...

Page 18: ...e of 150 mm or over If the pipe is bent repeatedly at the same place it will break 4 3 3 Connecting the Pipe at the Indoor Unit Side Detach the caps and plugs from the pipes CAUTION Be sure to apply the pipe against the port on the indoor unit correctly If the centering is improper the flare nut cannot be tightened smoothly If the flare nut is forced to turn the threads will be damaged Do not remo...

Page 19: ... Heat insulation sheath for the liquid tube Fig 4 13 Table 4 4 Flare nut tightening torque Pipe Diameter Tightening Torque 1 4 Inch 15 30 N m 3 8 Inch 35 40 N m 1 2 Inch 45 50 N m 5 8 Inch 60 65 N m 3 4 Inch 70 75 N m 7 8 Inch 80 85 N m CAUTION Be sure to connect the gas pipe after connecting the liquid pipe completely 4 3 4 Connecting the Pipe at the Outdoor Side Unit Tighten the flare nut of the...

Page 20: ...here connecting pipes Front outlet Coupler heat insulation small on the pipe Liquid pipe Gas pipe Reference A Coupler heat insulation large on the pipe Heat insulation pipe Reference A Cover this portion with heat insulating material also without fail No gap Fig 4 15 4 3 7 Liquid Pipe and Drain Pipe 1 If the outdoor unit is installed lower than the indoor unit See Fig 4 16 1 A drain pipe should be...

Page 21: ...part 2 All pipes are bound and taped together and also should be trapped to prevent water from returning to the room 3 Restraint all pipes to the wall with saddles Fig 4 17 4 4 Vacuum and Gas Leakage Inspection CAUTION Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation There is no extra refrigerant in the outdoor unit for air purging ...

Page 22: ... valve assembly reads 1 0Mp 75cmHg if not it indicates there is leak somewhere Then close the switch fully and then stop the vacuum pump 6 Wait for some time to see if the system pressure can remain unchanged 5 minutes for the 18 24k units 10 minutes for the units 36 60k During this time the reading of the pressure gauge at the low pressure side can not be larger than 0 005Mp 0 38cmHg 7 Slightly o...

Page 23: ...it is longer than 7 0m or the piping of 48 60k unit is longer than 9 5m additional charging is necessary For the additional amount see Table 4 5 Table 4 5 Item Model Standard Pipe Length Unnecessary Charge Pipe Length Additional Refrigerant Amount for Extra Pipe 18k 5 0m 7 0m 22 g m 24 36k 5 0m 7 0m 54 g m 42 48k 5 0m 7 0m 110 g m 60k 7 5m 9 5m 110 g m When the height difference between the indoor...

Page 24: ...talling the Drain Pipes 1 Insert the drain pipe to the drain outlet of the unit and then tighten the clamp securely with tape 2 Connect the extension drain pipe to the drain pipe and then tighten the clamp with tape 4mm 1 8inch 1 2 1 2 3 Tighten the clamp until the screw head is less then 4 mm from the hose Metal clamp accessory Insulation sponge accessory Insulate the pipe clamp and the drain hos...

Page 25: ...nage side of each indoor unit Fig 4 22 6 Install one water trap for each unit 7 Installation of water trap shall consider easy cleaning in the future Indoor unit Joint Indoor unit Indoor unit H H 2 Joint Fig 4 22 Fig 4 23 Fig 4 24 8 Connection of drainage branch pipe to the standpipe or horizontal pipe of drainage main pipe The horizontal pipe cannot be connected to the vertical pipe at a same hei...

Page 26: ...the drain lift pipe and insulate them 2 Connect the drain hose to the drain outlet on the indoor unit and tighten it with the clamp Drain lift pipe 1000mm 39 3 8inch 300mm 11 3 4inch 1000 1500mm 39 3 8 59inch Drain hose attachment Ceiling Clamp attachment Hoisting stand Roof Fig 4 28 2 Make sure the lift pipe is at most 280 mm 3 Stand the lift pipe vertically and make sure it is not further than 3...

Page 27: ...inished check if drainage flows smoothly Shown in the Fig 4 31 Add approximately 1liter of water slowly into the drain pan and check drainage flow during COOL running Drain hose Test hole cover Test hole Immiting water from the rest hole Plastic water pot The length of the pipe should be about 100mm 3 7 8inch Immiting water from the outlet vent terminal Above 100mm 3 7 8inch Drain vent for repair ...

Page 28: ...s may cause the troubles shown in Fig 4 33 Air leak Condensate Fig 4 33 3 If gap still exists between ceiling and decoration panel after tightening the screws readjust the height of the indoor unit Fig 4 34 No gap is allowed Adjustment of the indoor unit body from the holes in the corner of the panel is possible if the indoor unit can always be kept horizontal and the drain pipe etc will be unaffe...

Page 29: ...de and opposite the swing flap motor 2 Latch other two hooks 3 Tighten four hexagonal screws under the latches about 15mm 4 Adjust the panel along the direction indicated by the arrow as shown in Fig 4 36 5 Tighten the screws until the thickness of the sealing material between the panel and the indoor unit reduces to 5 8mm 5 8mm 1 4 3 8inch Latch Piping position Hook Swing flap motor Indoor unit C...

Page 30: ...ely and positively Install a leakage special branch circuit breaker in accordance with the related laws and regulations and electric company standards CAUTION The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances When the current contracted capacity is insufficient change the contracted capacity When the voltage is low and the air c...

Page 31: ... Insulation tube Cord clamp Fig 4 38 Fig 4 39 3 How to fix connection cord and power cord by cord clamp After passing the connection cord and power cord through the insulation tube fasten it with the cord clamp Fig 4 39 WARNING Before starting work check that power is not being supplied to the indoor unit and outdoor unit Match the terminal block numbers and connection cord colors with those of th...

Page 32: ...phase units 24 30K Fig 4 41 GUHN24NK3HO GKH24K3HI GUHN30NK3HO GKH30K3HI Power cord 3 4 0mm H07RN F Power cord 3 1 0mm H05RN F Communication Cords 2 0 75mm H05RN F Three phase units 36 48k Fig 4 42 GUHN36NM3HO GKH36K3HI Power cord 5 1 5mm H07RN F Power cord 3 1 0mm H05RN F Communication Cords 2 0 75mm H05RN F GUHN42NM3HO GKH42K3HI GUHN48NM3HO GKH48K3HI Power cord 5 2 5mm H07RN F Power cord 3 1 0mm ...

Page 33: ...ectromagnetic interference The high voltage and low voltage lines should pass through the rubber rings at different electric box covers Do not bundle the connection wire of the wired controller and the communication cord together or arrange them in parallel otherwise improper operation would occur The high voltage and low voltage lines should be fixed separately and securely with internal big clam...

Page 34: ...pplicable local and national codes 6 Electric wiring of outdoor unit side Note When connecting the power supply cord make sure that the phase of the power supply matches with the exact terminal board If not the compressor will rotate reversely and run improperly Remove the big handle 12 42k front board 48 60k of the outdoor unit and insert the end of the communication cord and the power cable into...

Page 35: ...ndoor anti freeze protection 3 E3 Compressor low pressure protection refrigerant lack protection and refrigerant colleting mode 4 E4 Compressor high discharge temperature protection 5 E6 Communication error 6 E9 Full water protection 7 F0 Indoor ambient temperature sensor error 8 F1 Evaporator temperature sensor error 9 F2 Condenser temperature sensor error 10 F3 Outdoor ambient temperature sensor...

Page 36: ...ay the temp setup for 5s then display the temp of indoor When the unit has error it will display the error code When there are more than one error the error code will be displayed alternately After the grille of the front panel is opened the front panel is still allowed to realize the following functions by pressing the Auto button and the nearby Test button simultaneously for five seconds when th...

Page 37: ...pping of the leakage switch The operating keys are locked The control loop has failure The unit operates for a while and then stops There is obstacle in front of the condenser The control loop is abnormal Cooling operation is selected when the outdoor ambient temperature is above 48 C Poor cooling effect The air filter is dirty or blocked There is heat source or too many people inside the room The...

Page 38: ...with gasolene benzene thinner polishing powder or liquid insecticide otherwise it would cause discoloration and deformation of the unit Do not wet the indoor unit in case of electric shock or fire hazard Increase the frequency of cleaning if the unit is installed in a room where the air is extremely contaminated As a yardstick for yourself consider cleaning the filter once a half year If dirt beco...

Page 39: ...move it 4 Disassemble the air purifier Remove the air purifier after removing the fixed screws on it Filter screen Filtering element Support Bolt 5 Clean the filer screen Clean the filer screen by a vacuum cleaner or wash it by flashing water If the oil stain on the filter can not be removed or cleaned up wash it by warm water meld with the detergent Dry the filer in the shadow Note Never use hot ...

Page 40: ...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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