Daikin SUPER MULTI NX CDXS18LVJU, Engineering Data

Page: 264 / 464

EDUS121131 Indoor Units
Installation Manual 259
2
Run Test and Final Check
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 (78˚F to 82˚F (26˚C to 28˚C) in cooling
mode, 68˚F to 75˚F (20˚C to 24˚C) in heating mode).
3) For protection, the unit disables restart operation for 3 minutes after it is turned off.
1-3 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 opened again.
Test items
Incomplete cooling/heating function No refrigerant gas leaks.
Drain line is properly installed.
Indoor and outdoor units are installed properly on
solid bases.
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Fall, vibration, noise
Water leakage
Water leakage
System is properly ground to earth. Electrical leakage
Indoor unit properly receives remote controller
commands.
Inoperative
Indoor or outdoor unit’s air intake or exhaust has
clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Symptom Check
2.
Test items.
Trial operation from remote controller.
1) Press the MODE button and select the trial operation mode.
2) Press ON/OFF button to turn on the system.
3) Simultaneously press MODE button and both of TEMP button.
4) Press MODE button twice.
(“ ” will appear on the display to indicate that Trial Operation mode is selected.)
5) Trial run mode terminates in approx. 30 minutes and switches into normal mode. To quit a trial
operation, press ON/OFF button.