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12■English
Trial Operation and
Testing
1. Trial operation and testing
• TrialoperationshouldbecarriedoutineitherCOOLorHEAToperation.
1-1. Measure the supply voltage and make sure that it is within the specied range.
1-2. In COOL operation, select the lowest programmable temperature;
in HEAT operation, select the highest programmable temperature.
1-3. Carry out the trial operation following the instructions in the operation manual to
ensure that all functions and parts, such as the movement of the ap, are working
properly.
• To protect the air conditioner, restart operation is disabled for 3 minutes after the system has been turned off.
1-4. After trial operation is complete, set the temperature to a normal level (78°F
to 82°F (26°C to 28°C) in COOL operation, 68°F to 75°F (20°C to 24°C) in HEAT
operation).
• WhenoperatingtheairconditionerinCOOLoperationinwinter,orHEAToperationinsummer,activatetrialoperation
mode by following the instructions in the installation manual for the indoor unit.
• The air conditioner draws a small amount of power in its standby mode. If the system is not to be used for some time after
installation, shut off the circuit breaker to eliminate unnecessary power consumption.
• If the circuit breaker trips to shut off the power to the air conditioner, the system will restore the original operation mode
when the circuit breaker is opened again.
2. Test items
Test items Symptom Check
Indoor and outdoor units are installed properly on solid bases. Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating
function
Refrigerant gas and liquid pipes and indoor drain hose extension are
thermally insulated.
Water leakage
Draining line is properly installed. Water leakage
System is properly grounded. Electricalleakage
Thespeciedwiresareusedforinter-unitwiring. No operation or burn damage
Indoor or outdoor unit’s air inlet or air outlet are unobstructed.
Incomplete cooling/heating
function
Stop valves are opened.
Incomplete cooling/heating
function
Indoor unit properly receives remote control commands. No operation
English
01_EN_3P379970-6B.indd 12 11/13/2015 15:48:30
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