Daikin REYQ72-432XAYCU, Service Manual

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Test Operation SiUS371901EB
263 Part 5 Field Settings and Test Operation
4. Test Operation
4.1 Checks before Test Operation
Before carrying out a test operation, proceed as follows:
4.2 Checkpoints
To carry out a test operation, check the following:
 Check that the temperature setting of the remote controller is at the lowest level in cooling mode
or use test mode.
 Go through the following checklist:
Step Action
1
Make sure the voltage at the primary side of the safety breaker is:
187 - 253 V (-XATJU(A))
or
416 - 508 V (-XAYDU(A))
or
518 - 632 V (-XAYCU(A))
2 Fully open the liquid and the gas stop valve.
Checkpoints Cautions or warnings
Are all units securely installed?  Dangerous for turning over during storm
 Possible damage to pipe connections
Is the ground wire installed according to the
applicable local standard?
Dangerous if electric leakage occurs
Are all air inlets and outlets of the indoor and
outdoor units unobstructed?
 Poor cooling
 Poor heating
Does the drain flow out smoothly? Water leakage
Is piping adequately heat-insulated? Water leakage
Have the connections been checked for gas
leakage?
 Poor cooling
 Poor heating
 Stop
Is the supply voltage conform to the
specifications on the name plate?
Incorrect operation
Are the cable sizes as specified and according
to local regulations?
Damage of cables
Are the remote controller signals received by
the unit?
No operation