Specifications

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