Trial Operation and Testing
1.
Trial operation and testing
• Trial operation should be carried out in either COOL or HEAT operation.
1-1. Measure the supply voltage and make sure that it is within the specified 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 louvers, 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).
• When operating the air conditioner in COOL operation in winter, or HEAT operation in summer, set it to the trial operation
mode using the following method.
1) Press
to turn on the system.
2) Press both of
3) Press
, select "
• Trial operation will stop automatically after about 30 minutes.
To stop the operation, press
• Some of the functions cannot be used in the trial operation mode.
• 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
Indoor and outdoor units are installed securely.
No refrigerant gas leaks.
Refrigerant gas and liquid pipes and indoor drain hose extension are
thermally insulated.
Draining line is properly installed.
System is properly grounded.
Only specified wires are used for all wiring, and all wires are connected
correctly.
Indoor or outdoor unit's air inlet or air outlet are unobstructed.
Stop valves are opened.
Indoor unit properly receives remote controller commands.
will be displayed when the MODE button is pressed.*
Pipes and wires are connected to the corresponding terminal blocks/
connection ports for the connected unit.
* Check that the jumper (J8) has not been cut. If it has
been cut, contact the service shop.
■
English
and
at the same time.
", and press
for confirmation.
.
Test items
Symptom
Fall, vibration, noise
Incomplete cooling/heating
function
Water leakage
Water leakage
Electrical leakage
No operation or burn damage
Incomplete cooling/heating
function
Incomplete cooling/heating
function
No operation
No heating
No cooling/heating
Jumper (J8)
Check
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