Table of Contents
Advertisement
Advertisement
Chapters
Table of Contents
Troubleshooting
Related Manuals for Carrier 38 KCL018R33
Summary of Contents for Carrier 38 KCL018R33
-
Page 1: Service Manual
Cover Service Manual AIR CONDITIONER Hi-Wall Type 42/38 KCL018R33 42/38QCL018R33... -
Page 2: Table Of Contents
Content Content Precaution ............................ 2 Safety Precaution......................... 2 Warning ............................2 Function ............................4 Dimension ............................ 6 Indoor unit............................ 6 Outdoor unit..........................6 Refrigerant cycle diagram ......................7 Operation limits..........................8 Cooling operation ........................8 Heating operation ........................8 Wiring diagram..........................9 Installation details........................11 Wrench torque sheet for installation..................11 Connecting the cables........................11... - Page 3 Content 10.3 Diagnostic chart......................... 27 10.4 Resetting phenomenon often occurs during operation............28 10.5 Operation lamp flashes and Timer lamp off................28 10.6 Operation lamp flashes and Timer lamp on................28 10.7 Operation lamp off and Timer lamp flashes................29 10.8 Operation lamp on and Timer lamp flashes................
-
Page 4: Precaution
Service manual 1.Precaution 1.1 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. 1.2 Warning Ø... - Page 5 Service manual l There is risk of explosion or fire. l To avoid vibration of water leakage. l If strange sounds, or small or smoke comes from l Do not install the product where the noise or hot air product. Turn the breaker off or disconnect the from the outdoor unit could damage the power supply cable.
- Page 6 Service manual conditioner and could cause product malfunction or Ø Operational damage. l Do not expose the skin directly to cool air for long l Do not insert hands or other object through air inlet periods of time. (Do not sit in the draft). or outlet while the product is operated.
-
Page 7: Function
Service manual 2.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
Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. 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. 4 way valve control It is only operated in the heating operation mode except defrosting operation. - Page 9 Service manual 3.Dimension 3.1 Indoor unit Dimension Mode 1080 3.2 Outdoor unit Dimension Mode...
-
Page 10: Refrigerant Cycle Diagram
Service manual 4.Refrigerant cycle diagram Ø Cooling only Ø Heat pump mode... -
Page 11: Operation Limits
Service manual 5.Operation limits 5.1 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. 5.2 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 12: Wiring Diagram
Service manual 6.Wiring diagram Indoorÿ 42KCL018R33 42QCL018R33... - Page 13 Service manual Outdoor: 38KCL018R33 38QCL018R33...
-
Page 14: Installation Details
Service manual 7.Installation details Wrench torque sheet for installation Outside diameter Torque inch Kg.m Æ6.35 Æ12.7 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit Pipe length and the elevation Max. -
Page 15: Air Purging Of The Piping And Indoor Unit
Service manual 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 16: Pumping Down (Re-Installation)
Service manual Pumping down (Re-installation) Procedure 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. Operate the unit for 10 to 15 minutes. -
Page 17: Re-Air Purging (Re-Installation)
Service manual Re-air purging (Re-installation) Procedure: Confirm that both the 2-way and 3-way valves are set to the closed position. 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. Air purging. -
Page 18: Balance Refrigerant Of The 2-Way, 3-Way Valves
Service manual Balance refrigerant of the 2-way, 3-way valves Procedure: Confirm that both the 2-way and 3-way valves are set to the open position. 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 19: Evacuation
Service manual Evacuation Procedure: Connect the vacuum pump to the charge set’s centre hose. Evacuation for approximately one hour. Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 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 20: Gas Charging
Service manual 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. §... -
Page 21: Electronic Function
Service manual 8.Electronic function Proper symbols and their meaning TA: Indoor ambient temperature TE: Indoor evaporator temperature TS: Setting temperature through the remote controller I3sec: Self-protection amp of compressor, continue three seconds until turns off the compressor. I5MIN: Self-protection amp of compressor, continue five minutes until turns off the compressor. IFAN: Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind. -
Page 22: Fan-Only Mode
Service manual If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor On, the unit stops and LED displays failure information and can’t returns to normal operation automatically. Fan-only mode Fan speed is high/mid/low/ Auto Cooling mode The 4-way valve is closed at cooling mode. -
Page 23: Dehumidifying Mode
Service manual Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. ) Dehumidifying mode The 4-way valve is off in dehumidifying mode Compressor and Indoor Fan actions in dehumidifying mode Indoor Block Compressor and Outdoor Fan ON 6minutes BREEZE OFF 4minutes ON 5minutes BREEZE OFF 5minutes... -
Page 24: Heating Mode
Service manual 8.7 Heating mode 8.7.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. 4-way valve must delay 2 minutes compared with compressor if the compressor changed into non-heating mode or turned off. 4-way valve doesn't delay in dehumidifying mode 8.7.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except for... -
Page 25: Defrosting Mode (Available For Heating Mode)
Service manual Low fan Room temp. down Room temp. up Med fan T-Ts 8.7.6 Indoor evaporator high-temperature protection at heating mode (T=indoor exchanger temp.) 8.7.7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time 8.8 Defrosting mode (available for heating mode) Defrosting condition: Defrosting starts when either of the following $` &$a : 8.8.1... -
Page 26: Auto Mode
Service manual 8.8.3 Ending condition of defrosting If one of following conditions is satisfied, end the defrost and turn into heating mode: A. The defrost time has reached to 7.5 or 10 minutes. B. The compressor current has reached to I or above, I differs in different models DEFROST... -
Page 27: Sleep Mode
Service manual 8.11 Sleep mode 8.11.1 The sleep function is available at cooling, heating or auto mode 8.11.2 Cooling: The set temperature rise 1! per hour. Two hours later, the set temperature will maintain as a constant and the fan speed is kept at low speed. -
Page 28: Model And Parameters
Service manual 9.Model and Parameters Model 38KCL018R33 38QCL018R33 I3SEC I5MIN IFAN IRESTORE IDEFROST 7.5A ANGLCOOL 67° ANGLHEAT 93° ANGLOFF 0° THDEFROST TMDEFROST TLDEFROST... -
Page 29: Troubleshooting
Service manual 10.Troubleshooting Display board 10.1 § 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 30: Diagnostic Chart
Service manual Diagnostic chart 10.3 After energizing, no indicator is lighted and the air conditioner can’t be operated. -
Page 31: Resetting Phenomenon Often Occurs During Operation
Service manual Resetting phenomenon often occurs during operation. 10.4 (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: Resetting phenomenon often occurs during operation. -
Page 32: Operation Lamp Off And Timer Lamp Flashes
Service manual Operation lamp off and Timer lamp flashes 10.7 Operation lamp on and Timer lamp flashes 10.8 EEROM error, indoor PCB is defective. Operation lamp flashes, Timer lamp flashes . 10.9 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 33: Characteristic Of Temperature Sensor
Service manual 11.Characteristic of temperature sensor Temp.! Resistance K Temp.! Resistance K Temp.! Resistance K 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... - Page 34 Cover Service Manual AIR CONDITIONER Hi-Wall Type 42/38KCL024R33 42/38KCL030R33 42/38QCL024R33 42/38QCL030R33...
- Page 35 Content Content Precaution 1.1 Safety Precaution 2 1.2 Warning 2 Function Dimension 3.1 Indoor unit 3.2 Outdoor unit 5 Refrigerant cycle diagram 6 Operation limits 7 5.1 Cooling operation 7 5.2 Heating operation 7 Wiring diagram Installation details 7.1 Wrench torque sheet for installation 7.2 Connecting the cables 12 7.3 Pipe length and the elevation 7.4 Air purging of the piping and indoor unit...
-
Page 36: Precaution
Service manual 1. Precaution 1.1 Safety Precaution l To prevent injury to the user or other people and property damage, the following instructions must be followed. l Incorrect operation due to ignoring instruction will cause harm or damage. l Before service unit, be sure to read this service manual at first. 1.2 Warning Ø... - Page 37 Service manual the unit is so equipped.) Ø Operational There is risk of physical injury, electric shock, or product failure. l Do not expose the skin directly to cool air for long l When the product is soaked (flooded or periods of time.
-
Page 38: Function
Service manual 2. 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 Starting temperature control Indoor fan is delayed for 5 sec at the starting. Time Delay Safety control Restarting is for approx. -
Page 39: Outdoor Unit
Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. 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. 4 way valve control It is only operated in the heating operation mode except defrosting operation. - Page 40 Service manual 3. Dimension 3.1 Indoor unit Model 1080 1250 3.2 Outdoor unit Dimension Mode...
-
Page 41: Refrigerant Cycle Diagram
Service manual 4. Refrigerant cycle diagram Ø Cooling only Ø Heat pump mode... -
Page 42: Operation Limits
Service manual 5. Operation limits 5.1 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. 5.2 Heating operation Indoor air temp. -
Page 43: Wiring Diagram
Service manual 6. Wiring diagram Indoorÿ 42KCL024R33 42QCL024R33... - Page 44 Service manual 42KCL030R33 42QCL030R33...
- Page 45 Service manual Outdoorÿ 38KCL024R33 38KCL030R33...
- Page 46 Service manual 38QCL024R33 38QCL0307R33...
-
Page 47: Installation Details
Service manual 7. Installation details Wrench torque sheet for installation Outside diameter Torque inch Kg.m Æ9.52 Æ12.7 Æ15.88 Æ19 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit Unit Pipe length and the elevation Max. -
Page 48: Air Purging Of The Piping And Indoor Unit
Service manual 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 49: Pumping Down (Re-Installation)
Service manual Pumping down (Re-installation) Procedure 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. Operate the unit for 10 to 15 minutes. -
Page 50: Re-Air Purging (Re-Installation)
Service manual Re-air purging (Re-installation) Procedure: Confirm that both the 2-way and 3-way valves are set to the closed position. 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. Air purging. -
Page 51: Balance Refrigerant Of The 2-Way, 3-Way Valves
Service manual Balance refrigerant of the 2-way, 3-way valves Procedure: Confirm that both the 2-way and 3-way valves are set to the open position. 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 52: Evacuation
Service manual Evacuation Procedure: Connect the vacuum pump to the charge set’s centre hose. Evacuation for approximately one hour. Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 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 53: Gas Charging
Service manual 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. §... -
Page 54: Electronic Function
Service manual 8. Electronic function 8.1 Electronic control working environment Input voltage: 175~253V Input power frequency: 60Hz Ambient temperature: -7°C~45°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 55 Service manual 8.4 Protection 8.4.1 3 minutes delay at restart for compressor. 8.4.2 Sensor protection at open circuit and breaking disconnection 8.4.3 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High Fan+300RPM)or too low(lower than 400RPM), the unit stops and LED displays failure information and can’t returns to normal operation automatically.
- Page 56 Service manual Auto fan at cooling mode: Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. ) Condenser high temperature protection (only for heat pump) 8.7 Dehumidifying mode Indoor fan speed at low speed. Protection is same as cooling mode. 8.8 Heating mode 8.8.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode.
- Page 57 Service manual defrosting mode or the end of defrost. 8.8.3 Action of compressor and outdoor fan motor at heating mode: compressor must run for 7 minutes after starting and then judge temperature. Meanwhile other protections are still valid. * This parameter can be changed from 0 to 3 8.8.4 Indoor Fan actions at heating mode Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails.
- Page 58 Service manual The louver opens to Standard Angle ANGLHEAT when power is on for the first time 8.9 Defrosting mode(available for heating mode) 8.9.1 Defrosting condition: Defrost starts when either of the following: The compressor works under the condition that T3 lower than 0’C add up to more than 40 minutes, and under the condition that T3 is lower than -3’C consecutively reaches 3 minutes.
- Page 59 Service manual 8.10.2 The indoor fan blows automatically in corresponding selected modeÿ 8.10.3 The motion of indoor fan’s blade should accord with the selected operation modeÿ 8.10.4 One mode should be carried out for at least 15 minutes once selected. If the compressor cannot start for 15 minutes, reselect the operation mode according to the room temp.
- Page 60 Service manual 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). 8.12.4 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 61: Model And Parameters
Service manual 9. Model and Parameters Model 38KCL024R33 38QCL024R33 38KCL030R33 38QCL030R33 I3SEC 27.6A I5MIN 25.2A IFAN 17.8A 2 5 ! 3 2 ! 3 0 ! 2 0 ! 1 2 ! 6 3 ! 5 4 ! 5 0 ! ANGLCOOL ANGLHEAT ANGLOFF... -
Page 62: Troubleshooting
Service manual 10. Troubleshooting Display board 10.1 § 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. -
Page 63: Diagnostic Chart
Service manual NOTE: For cool only model, the defrosting lamp is replaced with fan lamp, but malfunction display remains. Diagnostic chart 10.3 After energizing, no indicator is lighted and the air conditioner can’t be operated. -
Page 64: Resetting Phenomenon Often Occurs During Operation
Service manual Resetting phenomenon often occurs during operation. 10.4 (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: Resetting phenomenon often occurs during operation. -
Page 65: Temperature Sensor Error
Service manual 10.6 Temperature sensor error. Including the indoor room, indoor evaporator and outdoor condenser temperature sensor. 10.7 Outdoor unit protects Check if the power supply is good Power supply failure Change outdoor PCB and check if the error is still exit Outdoor PCB failure mpressor failure... -
Page 66: Characteristic Of Temperature Sensor
Service manual 11. Characteristic of temperature sensor Temp.! Resistance K Temp.! Resistance K Temp.! Resistance K 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...