Operation; Troubleshooting - Acson AMSD-A Series Manual

ELECTRICAL CONNECTIONS
Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL ELECTRICAL CODES
for field wiring rules. Be sure that installation comply with such rules and regulations.
GENERAL PRECAUTIONS
Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper wiring according to the
wiring diagram.
Provide a power outlet to be used exclusively for each unit. A power supply disconnect and a circuit breaker for over
current protection should be provided in the exclusive line.
All wiring must be firmly connected.
All wiring must not touch the refrigerant piping, compressor or any moving parts of fan motors.
OPERATIONAL CHECK
After all wiring is completed and the system is charged with refrigerant, make sure that unit is operating properly. Check
that :
• Condenser fan is running, with warm air blowing off the condensing unit.
• Evaporator blowers are running and discharging cool air.
• The micro-computer system incorporate a 3-minute delay in the circuitry. Thus, it requires about 3 minutes upon cut off
before the outdoor condensing unit can start up.
• To check if there is any miswiring, turn on one unit at a time.
• After running for 10-15 minutes. Check if the suction (low side) pressure is within normal operating range.
When any air conditioner malfunction is noted, immediately switch off the power supply to the unit and contact the local
dealer, if necessary. Some simple troubleshooting tips are given below :
TROUBLE
1. Fan does not work
2. Fan works, but compressor does
not work
3. Both fan and compressor does
not work
4. Air-Conditioner works but cooling
not satisfactory

12. OPERATION

13. TROUBLESHOOTING

PROBABLE CAUSE
1. No power supply
2. Fan capacitor faulty
3. Fan motor faulty
4. Switch faulty
1 . Thermostat setting too high
2. Compressor capacitor faulty
3. Compressor faulty
4. Compressor contactor faulty
1. Power failure
2. Starter trip
3. Fuse blown in power switch or
operating unit
1. Thermostat setting too high
2. Door and/or windows not closed
3. Condenser coil dirty
4. Some objects blocking the inlet
and/or outlet of the unit
5. Refrigerant charge too low
1.
2.
3.
4.
1 . Reset thermostat
2. Contact local dealer
3. Contact local dealer
4. Contact local dealer
1.
2.
3.
1.
2.
3.
4.
5.
72
SUGGESTED ACTION
Check power supply
Contact local dealer
Contact local dealer
Change switch
Operate when power supply
resume
Reset starter
Check and replace fuse
Reset thermostat
Close door and/or windows
Clean condenser coil
Remove the objects
Contact local dealer