9
TRIAL OPERATION AND TESTING
Trial Operation and Testing
(1) Measure the supply voltage and make sure that it falls in the specified range.
(2) Trial operation should be carried out in either cooling or heating mode.
For Heat pump
In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable
temperature.
●
Trial operation may be disabled in either mode depending on the room temperature.
●
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).
●
For protection, the system disables restart operation for 3 minutes after it is turned off.
For Cooling Only
Select the lowest programmable temperature.
●
Trial operation in cooling mode may be disabled depending on the room temperature.
Use the remote control for trial operation as described below.
●
After trial operation is complete, set the temperature to a normal level (26°C to 28°C).
●
For protection, the unit disables restart operation for 3 minutes after it is turned off.
(3) Carry out the test operation in accordance with the Operation Manual to ensure that all functions and parts 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 turned on again.
Test Items
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 interconnecting wire
connections.
Indoor or outdoor unit’s air intake or exhaust has clear
path of air.
Shut-off valves are opened.
Indoor unit properly receives remote control commands.
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
Check
Trial operation from Remote Controller
(1) Press ON/OFF button to turn on the system.
(2) Simultaneously press center of TEMP button and MODE button.
(3) Press MODE button twice.
(“ ” will appear on the display to indicate that Trial Operation mode is selected.)
(4) Trial run mode terminates in approx. 30 minutes and switches into normal mode. To quit a trial operation, press ON/
OFF button.
Summary of Contents for CDKS25BVMB
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