Daikin CTXU25G2V1B Service Manual page 60

SiBE12-908
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
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.
Indoor and outdoor units are installed properly on solid bases.
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 earthed.
The specified wires are used for inter-unit wiring connections.
Indoor or outdoor unit's air intake or exhaust has clear path of air.
Stop valves are opened.
Indoor unit properly receives remote controller commands.
No strange noise from the humidifying hose.
* 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
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.
Installation / Operation Manual
" button and select " " (TEST mode).
Test items
" button and select "D" (DRYING mode).
Installation Manual
Symptom
(diagnostic display on RC)
Fall, vibration, noise
Incomplete cooling/heating function
Water leakage
Water leakage
Electrical leakage
Inoperative or burn damage
Incomplete cooling/heating function
Inoperative
Bubble sound*
Check
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3P232706-1B
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