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Summary of Contents for Vivax ACP-24CH70AEB
- Page 1 Service manual ACP-24CH70AEB RoHS...
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Page 3: Table Of Contents
Balance refrigerant of the 2-way, 3-way valves................ 19 Evacuation ..........................20 Gas charging ........................... 21 Pressure table ......................22 MSE-21CRN2 .......................... 22 MSE-21HRN2 .......................... 22 MSE-24CRN2 .......................... 23 ACP-24CH70AEB.......................... 23 MSE-28CRN2 .......................... 24 MSE-28HRN2 .......................... 24 Capacity table ......................25 10.1 MSE-21CRN2 .......................... 25 10.2... - Page 4 Content 11.1 Proper symbols and their meaning ..................28 11.2 Function ........................... 28 11.3 Protection..........................28 11.4 Fan-only mode......................... 29 11.5 Cooling mode........................... 29 11.6 Dehumidifying mode ........................ 30 11.7 Heating mode .......................... 30 11.8 Defrosting mode(available for heating mode) ................32 11.9 Auto mode ..........................
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Page 6: 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 Installation Moisture may condense and wet or damage furniture. - Page 7 Service manual failure. Operational When the product is soaked (flooded or submerged), contact an Authorized service center. Do not expose the skin directly to cool air for long There is risk of fire or electric shock. periods of time. (Do not sit in the draft). Be caution that water could not enter the product.
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Page 8: 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 9 Service manual 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 10: Dimension
Service manual 3. Dimension 3.1 Indoor unit Dimension Mode 1080 1080 1080... -
Page 11: Outdoor Unit
Service manual 3.2 Outdoor unit Dimension Mode... -
Page 12: Specification
Service manual 4. Specification Model MSE-21CRN2 MSE-21HRN2 MSE-24CRN2 Power supply Ph-V-Hz 220-240V~,50Hz 220-240V~,50Hz 220-240V~,50HZ Capacity Btu/h 20000 20000 23000 Input 2200 2200 2680 Cooling Rated current 10.2 10.1 12.4 Btu/w.h Capacity Btu/h 22000 Input 2300 Heating Rated current 10.5 Max. input consumption 2650 2900 3200... - Page 13 Service manual Model MSE-28CRN2 MSE-28HRN2 ACP-24CH70AEB Power supply Ph-V-Hz 1, 220-240V~, 50Hz 220-240V~,50HZ 220-240V~,50HZ Capacity Btu/h 23000 26000 26000 Input 2680 3050 3050 Cooling Rated current 12.4 13.9 13.9 Btu/w.h Capacity Btu/h 28000 31000 Input 2930 3200 Heating Rated current 13.2...
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Page 14: Refrigerant Cycle Diagram
Service manual 5. Refrigerant cycle diagram Cooling only Heat pump mode... -
Page 15: Operation Limits
Service manual 6. Operation limits 6.1 Cooling operation Outdoor unit air temp.℃ DB Indoor air temp. ℃ DB 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. -
Page 16: Schematic Diagram And Wiring Diagram
Service manual 7. Schematic diagram and Wiring diagram 7.1. Schematic diagram Indoor unit of MSE-21/24/28C/HR ACP-24CH70AEB IN4007*8 IC3 7805 Vout C3 104 5VAC2 IC224C04 5VAC1 FUSE1 3.15A/250V 1000uF/25V 470uF/16V 12VAC2 14D681K 0.1uF/275VAC +12V TRANS_IN POWER PTC1 TRANS_OUT R7 12K 12VAC1... - Page 17 Service manual Outdoor unit of MSE-21/24/28C/HR ACP-24CH70AEB IN4007*8 +12V 7805 4148 Vout FUSE1 +12V 5VAC1 3.15A/250V AC_L COMP 9014 5VAC2 COMP COMP 14D681K 0.1uF/275VAC TRANS_IN 1000uF/25V 470uF/16V TRANS_OUT PTC1 AC_N 82RM VALVE 51/1W 4148 C4 333 VALVE 9014 VALVE CN10...
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Page 18: Wiring Diagram
Service manual 7.2. Wiring diagram MSE-21CRN2, MSE-24CRN2, MSE-28CRN2... - Page 19 Service manual MSE-21HRN2, ACP-24CH70AEB, MSE-28HRN2...
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Page 20: Installation Details
Service manual 8. 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 21: 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 22: Pumping Down (Re-Installation)
Service manual 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 23: Re-Air Purging (Re-Installation)
Service manual 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 24: Balance Refrigerant Of The 2-Way, 3-Way Valves
Service manual 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 25: Evacuation
Service manual 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 26: 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. 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 27: Pressure Table
Service manual 9. Pressure table Note: The pressure data is from 3 way valve, the pressure data are pressure above atmosphere. D: Dry bulb temp. W: Wet bulb temp. 9.1 MSE-21CRN2 cooling mode outdoor temperature(Dry bulb temp) indoor 25℃ pressure 30℃... -
Page 28: Mse-24Crn2
15℃ W pressure 24℃ D (kg/cm2) 17℃ W pressure 27℃ D (kg/cm2) 19℃ W pressure 32℃ D (kg/cm2) 23℃ W 9.4 ACP-24CH70AEB cooling mode outdoor temperature(Dry bulb temp) indoor 25℃ pressure 30℃ 35℃ 40℃ 45℃ 50℃ conditions pressure 21℃ D (kg/cm2) 15℃... -
Page 29: Mse-28Crn2
Service manual 9.5 MSE-28CRN2 cooling mode outdoor temperature(Dry bulb temp) indoor 25℃ pressure 30℃ 35℃ 40℃ 45℃ 50℃ conditions pressure 21℃ D (kg/cm2) 15℃ W pressure 24℃ D (kg/cm2) 17℃ W pressure 27℃ D (kg/cm2) 19℃ W pressure 32℃ D (kg/cm2) 23℃... -
Page 30: Capacity Table
Service manual 10. Capacity table 10.1 MSE-21CRN2 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 5.44 5.16 4.81 4.42 4.06 3.79 21ºC D Sensitive capacity kW 3.80 3.69 3.53 3.34 3.18 3.04 15ºC W Input kW. -
Page 31: Mse-24Crn2
Sensitive capacity kW 5.24 5.09 5.04 4.96 4.90 4.82 23ºC W Input kW. 2.41 2.59 2.87 3.15 3.42 3.70 10.4 ACP-24CH70AEB SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 6.57 6.25 5.81 5.34 4.90 4.57... -
Page 32: Mse-28Crn2
Service manual 10.5 MSE-28CRN2 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 7.77 7.45 7.01 6.54 6.10 5.77 21ºC D Sensitive capacity kW 5.81 5.67 5.48 5.26 5.05 4.89 15ºC W Input kW. 2.70 2.90 3.11... -
Page 33: Electronic Function
Service manual 11. Electronic function 11.1 Proper symbols and their meaning T1: Indoor ambient temperature T2: Indoor evaporator temperature T3: Outdoor condenser temperature TS: Setting temperature through the remote controller : Self-protection amp of compressor, continue three seconds until turns off the compressor. 3sec : Self-protection amp of compressor, continue five minutes until turns off the compressor. -
Page 34: Fan-Only Mode
Service manual 11.3.4 The current protection of the compressor Current down I 3sec Compressor turn off (after 3 second later) I 5min Current up Compressor turn off (after 5 minute later) I fan The outdoor fan turn off (heating) I restore The outdoor fan turn Indoor fan: On low speed (cooling) -
Page 35: Dehumidifying Mode
Service manual 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 4 mins) Condenser high temperature protection (cooling only type don’t have the protection): This protection only runs in cooling mode, cooling in auto mode and turbo mode The condition of this protection: Comp act... - Page 36 Service manual 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 11.7.2 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 11.7.3 Action of compressor and outdoor fan motor at heating mode: compressor must run for minutes after starting and then judge temperature.
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Page 37: Defrosting Mode(Available For Heating Mode)
Service manual Low fan Room temp. down Room temp. up Med fan T-Ts 11.7.6 Indoor evaporator high-temperature protection at heating mode Comp off Out fan off Compressor, Out fan low out fan off TE15 Compressor on Out fan on (high) Compressor, Out fan on 11.7.7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time... -
Page 38: Auto Mode
Service manual Defrost 10 minutes Compressor 4-way valve Outdoor fan Indoor fan 11.9 Auto mode 11.9.1 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). -
Page 39: Auto Restart Function
Service manual the fan speed is kept at low speed. The total time is 7 hours, after 7 hours the unit stops 11.11.3 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). -
Page 40: Model And Parameters
Service manual 12. Model and Parameters Model MSE-21 MSE-21 MSE-24 MSE-28 MSE-28 ACP-24 CRN2 HRN2 CRN2 CRN2 HRN2 CH70AEB I3SEC I5MIN IFAN IRESTORE IDEFROST 25℃ 25℃ 25℃ 32℃ 32℃ 32℃ 30℃ 30℃ 30℃ 20℃ 20℃ 20℃ 2℃ 2℃ 2℃ 2℃ 2℃... -
Page 41: Troubleshooting
Service manual 13. Troubleshooting Display board 13.1 Signal receptor AU TO indicator Thi s indicator illuminates whe n the air conditioner i s in AUTO operation. DE FROST indicator (F or Cooling & H eating mo dels only) Thi s indicator illuminates whe n the air conditioner starts defrostin g automati cally or when the warm air control fea ture is activated in he ating oper ation. -
Page 42: Detailed Malfunction Analyse
Service manual Detailed malfunction analyse 13.3 Cur r ent protectio n (LED indi cates) Check t he indoor air filt er. Check the out door condenser. Che ck t he positio n If wro ng, t he unit w ill and wiring of tem p result in current sen sor (all of the m). - Page 43 Service manual T he unit does not o per ate Ye s Does the power LED C hec k t he elect rical Per f orm Do th e LED lamps light af ter turning so urce. the related indicat es ERR? the switch on? inst ruct io ns.
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Page 44: Malfunction Stat
Service manual Malfunction Stat. 13.4 PROBLEM CAUSE REMEDY Power failure Check the power cord. Wiring failure Check the wiring. Replace the terminates or wires if failure. Not operating Check the input and the output on transformer. Replace if Transformer failure failure. - Page 45 Service manual PROBLEM CAUSE REMEDY Temperature sensor Open or short Replace after checked failure. circuit of outdoor failure Connector failure or loose Repair or replace the sensor. temperature Outdoor PCB failure Replace after checked failure. sensor Temperature sensor Room temp or Replace after checked failure.
- Page 46 Service manual PROBLEM CAUSE REMEDY LED failure Replace the display if checked failure. No display on Remote control shut the indoor unit. Push the button to turn the display on. display No power Check the voltage. Call an electrician if not within the limit. Wiring Check the terminals.
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Page 47: Characteristic Of Temperature Sensor
Service manual 14. 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...