Related Manuals for General Climate GC-S24HR
Summary of Contents for General Climate GC-S24HR
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Page 1: Service Manual
Service manual Room air conditioner Split Wall-Mounted Type GC/GU-S24HR GC/GU-S30HR GC/GU-S36HR www.generalclimate.com Wall-Mounted Split Type... -
Page 2: Table Of Contents
Content Precaution ........................1 Safety Precaution ........................1 Warning ............................. 1 Function ........................3 Dimension ........................5 Indoor unit..........................5 Outdoor unit ..........................6 Specification ........................ 7 Refrigerant cycle diagram................... 8 Operation limits ......................9 Cooling operation........................9 Heating operation ........................9 Schematic diagram and Wiring diagram .............. - Page 3 10.11 Force cooling function......................29 10.12 Sleep mode..........................29 10.13 Auto restart function......................... 30 Model and Parameters ....................31 Troubleshooting......................32 12.1 Display board........................... 32 12.2 Troubleshooting ........................33 12.3 Diagnostic chart ........................34 12.4 Resetting phenomenon often occurs during operation............. 35 12.5 Operation lamp flashes and Timer lamp off.
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Page 5: Precaution
Precaution Safety Precaution To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. Before service unit, be sure to read this service manual at first. Warning Installation Do not use a defective or underrated circuit breaker. - Page 6 operation. (Do not touch the electrostatic filter, if the Operational unit is so equipped.) Do not expose the skin directly to cool air for long There is risk of physical injury, electric shock, or product failure. periods of time. (Do not sit in the draft). When the product is soaked (flooded or submerged), This could harm to your health.
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Page 7: Function
Function Indoor unit Operation ON/OFF by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Starting temperature control Indoor fan is delayed for 5 sec at the starting. Time Delay Safety control Restarting is for approx. - Page 8 Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. Low ambient kit The unit can operate in cooling mode at low ambient temperature conditions. Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly. Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode.
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Page 9: Dimension
Dimension 3.1 Indoor unit Dimension Mode 1080 1080 1250 www.generalclimate.com Wall-Mounted Split Type... -
Page 10: Outdoor Unit
3.2 Outdoor unit Dimension Mode www.generalclimate.com Wall-Mounted Split Type... -
Page 11: Specification
Specification Model GC/GU-S24HR GC/GU-S30HR GC/GU-S36HR Ph-V-Hz 1, 220-240V~,50Hz 1, 220-240V~,50Hz 1, 220-240V~, 50Hz Power supply 35000 Capacity Btu/h 24000 28000 4120 Input 2750 3200 Cooling Rated current 18,6 12,5 Btu/w.h 8.7, 2.6 Capacity Btu/h 38000 27000 30000 Input 4100 2750 3100 Heating Rated current... -
Page 12: Refrigerant Cycle Diagram
Refrigerant cycle diagram Cooling only Heat pump mode www.generalclimate.com Wall-Mounted Split Type... -
Page 13: Operation Limits
Operation limits 6.1 Cooling operation Outdoor unit air temp. Indoor air temp. Note: The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage. 6.2 Heating operation Indoor air temp. Outdoor unit air temp. Note: The chart is the result from the continuous operation under constant air temperature conditions. -
Page 14: Schematic Diagram And Wiring Diagram
Schematic diagram and Wiring diagram Schematic diagram www.generalclimate.com Wall-Mounted Split Type... - Page 15 www.generalclimate.com Wall-Mounted Split Type...
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Page 16: Wiring Diagram
Wiring diagram 7.2.1 Heating mode GC/GU-S24HR, GC/GU-S30HR www.generalclimate.com Wall-Mounted Split Type... - Page 17 GC/GU-S36HR www.generalclimate.com Wall-Mounted Split Type...
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Page 18: Installation Details
Installation details Wrench torque sheet for installation Outside diameter Torque inch Kg.m φ6.35 φ9.52 φ12.7 φ15.88 φ19.05 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit Pipe length and the elevation Standard Max. -
Page 19: Air Purging Of The Piping And Indoor Unit
Air purging of the piping and indoor unit Required tools: Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector. Note: The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction of unit. -
Page 20: Pumping Down (Re-Installation)
Pumping down (Re-installation) Procedure 1. Confirm that both the 2-way and 3-way valves are set to the opened position. Remove the valve stem caps and confirm that the valve stems are in the opened position. Be sure to use a hexagonal wrench to operate the valve stems. 2. -
Page 21: Re-Air Purging (Re-Installation)
Re-air purging (Re-installation) Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the closed position. 2. Connect the charge set and a charging cylinder to the service port of the 3-way valve. Leave the valve on the charging cylinder closed. 3. -
Page 22: Balance Refrigerant Of The 2-Way, 3-Way Valves
Balance refrigerant of the 2-way, 3-way valves Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. Leave the valve on the charge set closed. Connect the charge hose with the push pin to the service port. -
Page 23: Evacuation
Evacuation Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 3. Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). -
Page 24: Gas Charging
Gas charging Procedure: 1. Connect the charge hose to the charging cylinder. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant). -
Page 25: Capacity Table
Capacity table GC/GU-S24HR OUTDOOR TEMPERATURE DRY SUMMER Cooling mode Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions 21ºC D Total capacity kW 6.76 6.35 5.88 5.41 5.05 4.69 15ºC W Sensitive capacity kW 4.93 4.74 4.44 4.11 3.86 3.61 Input kW. 2.35 2.48 2.59... -
Page 26: Gc/Gu-S30Hr
GC/GU-S30HR OUTDOOR TEMPERATURE DRY SUMMER Cooling mode Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions 21ºC D Total capacity kW 7.88 7.40 6.86 6.31 5.90 5.47 15ºC W Sensitive capacity kW 5.75 5.52 5.18 4.79 4.50 4.21 Input kW. 2.74 2.89 3.01 3.25... -
Page 27: Gc/Gu-S36Hr
GC/GU-S36HR OUTDOOR TEMPERATURE DRY SUMMER Cooling mode Indoor 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions 21ºC D Total capacity kW 9.87 9.27 8.59 7.90 7.38 6.85 15ºC W Sensitive capacity kW 7.21 6.92 6.48 6.00 5.64 5.28 Input kW. 3.52 3.72 3.87 4.18... -
Page 28: Electronic Function
10. Electronic function 10.1 Electronic control working environment Input voltage: 175~253V Input power frequency:50HZ Ambient temperature: -7°C+43°C Indoor fan normal working amp is less than 1A Outdoor fan normal working amp is less than 1.5A Four-way valve normal working amp is less than 1A Swing motor: DC12V Compressor: single-phase power supply. -
Page 29: Function
10.3 Function Remote receiving Testing and forced running Position set for indoor unit wind vane LED displaying and alarm On or off Timer Protection for the compressor Current protection High temperature protection of indoor heat exchanger at heating mode Auto defrosting and heating recovery at heating mode Anti cold air at heating mode 10.4 Protection 10.4.1 3 minutes delay at restart for compressor. -
Page 30: Dehumidifying Mode
Auto fan at cooling mode: Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. ) Compressor and outdoor fan on EVAP. temp. down EVAP. temp. up Compressor and outdoor fan off (after 5 mins) Condenser high temperature protection (only for heat pump) 10.7 Dehumidifying mode Indoor fan speed at low speed. - Page 31 mode or turned off. 4-way valve doesn't delay in dehumidifying mode 10.8.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except for the defrosting mode or the end of defrost 10.8.3 Action of compressor and outdoor fan motor at heating mode: compressor must run for 7 minutes after starting and then judge temperature.
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Page 32: Defrosting Mode(Available For Heating Mode)
10.8.7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time 10.9 Defrosting mode(available for heating mode) 10.9.1 Defrosting condition: Defrost starts when either of the following: T3 lower than 0’C, lasts for more than 40 minutes, provided that the time period then the temperature is lower than -3’C consecutively reaches 3 minutes. -
Page 33: Auto Mode
10.10 Auto mode 10.10.1 The air conditioner automatically selects one of the following operation modes: cooling, heating or fan only according to the temperature difference between room temperature (TA) and set temperature (TS). 10.10.2 The indoor fan blows automatically in corresponding selected mode 10.10.3 The motion of indoor fan’s blade should accord with the selected operation mode 10.10.4... -
Page 34: Auto Restart Function
10.12.3 Heating: The set temperature decrease 1 per hour. Two hours later, the set temperature will maintain as a constant and the air circulation is kept at low speed (Anti-cold function takes precedence over all). 10.12.4 Auto: After an hour running under economic mode, the set temp will rise 1 ,if it is under cooling mode; the set temp will decrease 1 ,if it is under heating mode;... -
Page 35: Model And Parameters
11. Model and Parameters Model GC/GU-S24HR GC/GU-S30HR GC/GU-S36HR I3SEC [A] I5MIN [A] IFAN [A] IDEFROST [A] TE1 ['C] TE2 ['C] TE3 ['C] TE4 ['C] TE5 ['C] TE6 ['C] TE7 ['C] TE8 ['C] TE9 ['C] TE10 ['C] TE11 ['C] TE14 ['C] TE16 ['C] www.generalclimate.com Wall-Mounted Split Type... -
Page 36: Troubleshooting
12. Troubleshooting 12.1 Display board Operation The indicator flashes once every second after power is on and illuminates when the air conditioner is in operation. Timer indicator: The indicator illuminates then TIMER is set ON. PRE-DEF. indicator (For cooling & heating mode only) The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating. -
Page 37: Troubleshooting
12.2 Troubleshooting For cooling mode: Operation Timer Failure phenomenon lamp lamp Indoor fan speed has been out of control for over 1 minute Indoor room temp. or evaporator sensor is open circuit or short circuit Over current protection of the compressor occurs 4 times EEROM error No over-zero signal r Extinguish... -
Page 38: Diagnostic Chart
12.3 Diagnostic chart After energizing, no indicator is lighted and the air conditioner can’t be operated. www.generalclimate.com Wall-Mounted Split Type... -
Page 39: Resetting Phenomenon Often Occurs During Operation
12.4 Resetting phenomenon often occurs during operation. (That is automatically entering to the status when power is on.) The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following procedure: 12.5 Operation lamp flashes and Timer lamp off. 12.6 Operation lamp flashes and Timer lamp on. -
Page 40: Operation Lamp Off And Timer Lamp Flashes
12.7 Operation lamp off and Timer lamp flashes 12.8 Operation lamp on and Timer lamp flashes EEROM error, indoor PCB is defective. 12.9 Operation lamp flashes, Timer lamp flashes . This is alarm signal when the main chip can’t detect over-zero signal. When such failure occurs, the main control board must have fault. -
Page 41: Characteristic Of Temperature Sensor
13. Characteristic of temperature sensor Temp. Resistance KΩ Temp. Resistance KΩ Temp. Resistance KΩ 62.2756 14.6181 4.3874 58.7079 13.918 4.2126 56.3694 13.2631 4.0459 52.2438 12.6431 3.8867 49.3161 12.0561 3.7348 46.5725 11.5 3.5896 10.9731 3.451 41.5878 10.4736 3.3185 39.8239 3.1918 37.1988 9.5507 3.0707 35.2024...