SiBE12-908
Installation Manual
Installation / Operation Manual
66
a
Trial Operation and Testing
1. Trial operation and testing.
1-1 Measure the supply voltage and make sure that it falls in the specified range.
1-2 Trial operation should be carried out in either cooling or heating mode.
• In cooling mode, select the lowest programmable temperature; in heating mode, select the highest
programmable temperature.
1) Trial operation may be disabled in either mode depending on the room temperature.
Use the remote controller for trial operation as described below.
2) After trial operation is complete, set the temperature to a normal level (26°C to 28°C in cooling mode, 20°C
to 24°C in heating mode).
3) For protection, the system disables restart operation for 3 minutes after it is turned off.
1-3 To perform a test run for HUMID HEAT operation, activate test run mode from the remote controller following
the instructions below and select the HUMID HEAT operation.
1-4 Carry out the test operation in accordance with the operation manual to ensure that all functions and parts,
such as louver movement, are working properly.
• The air conditioner requires 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.
Trial operation from remote controller
1) Press “ON/OFF” button to turn on the system.
2) Press “TEMP” button (2 locations) and “MODE” button at the same time.
3) Press “TEMP
” button and select “
T
” (TEST mode).
4) Press “MODE” button.
5) Trial run mode terminates in approx. 30 minutes and switches into normal mode. To quit a trial operation,
press “ON/OFF” button.
2. Test items.
Test items
Symptom
(diagnostic display on RC)
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 earthed.
Electrical leakage
The specified wires are used for inter-unit wiring connections.
Inoperative or burn damage
Indoor or outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Indoor unit properly receives remote controller commands.
Inoperative
No strange noise from the humidifying hose.
Bubble sound*
* When the bubble sound is heard, water may be in the humidifying hose.
Do the HOSE DRY operation.
HOSE DRY operation for humidifying hose
1) Press “TEMP” button (2 locations) and “MODE” button at the same time.
2) Press “TEMP
” button and select “
” (DRYING mode).
3) Press “MODE” button to start the HOSE DRY operation.
HOSE DRY operation will work about 30 minutes.
(To cancel the HOSE DRY operation, hold “MODE” button for more than 5 seconds.)
4) Activate test run for HUMID HEAT operation again, check that the bubble sound is not heard from the humidifying hose.
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3P232706-1B
