Daikin 4MXS-R Series Service Manual page 242

Trial Operation
1. Press
2. Press
3. Press
Test Items
Indoor and outdoor units are installed securely.
Is the outdoor unit fully installed?
No refrigerant gas leaks.
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Draining line is properly installed.
Does the power supply voltage correspond to that
shown on the name plate?
Only specified wires are used for all wiring, and all
wires are connected correctly.
System is properly grounded.
Is wiring size according to specifications?
Is something blocking the air outlet or inlet of either
the indoor or outdoor units?
Are refrigerant piping length and additional
refrigerant charge noted down?
Pipes and wires are connected to the
corresponding connection ports/terminal blocks for
the connected unit.
Stop valves are opened.
Check that the connector of the lead wires of the
decoration panel is connected securely.
Indoor unit properly receives wireless remote
control commands.
229
With Wireless Remote Controller (BRC082A43, BRC082A41W, BRC082A42W(S))
button and select the COOL or HEAT operation.
button twice. "TEST" is displayed.
button within 10 seconds, and the test operation starts.
Monitor the operation of the indoor unit for a minimum of 10 minutes. During test operation, the
indoor unit will continue to cool/heat regardless of the temperature setpoint and room
temperature.
In the case of above-mentioned procedures (1) and (2) in reverse order, test operation can
start as well.
Test operation will stop automatically after 15 ~ 30 minutes. To stop the operation, press
button.
Some of the functions cannot be used in the test operation mode.
Test items Symptom
Fall, vibration, noise
No operation or burn damage
Incomplete cooling/heating function
Water leakage
Water leakage
No operation or burn damage
No operation or burn damage
Electrical leakage
No operation or burn damage
Incomplete cooling/heating function
The refrigerant charge in the system is not clear
No cooling/heating
Incomplete cooling/heating function
Louvers do not move
No operation
Trial Operation and Field Settings
SiUS121736EA