Daikin SkyAir RZQ-P Series Service Manual page 52

Test Operation
1.1.3 Check Operation
* During check operation, mount front panel to avoid the misjudging.
* Check operation is mandatory for normal unit operation.
(When the check operation is not executed, alarm code "
Press and hold the TEST
button (BS4) on outdoor unit
PCB for 5 seconds.
Check on operation
On completion of test operation, LED on outdoor unit PCB displays the following.
H3P ON: Normal completion
H2P and H3P ON: Abnormal completion  Check the indoor unit remote controller for
(For normal completion)
(For abnormal completion)
Error code
In case of an error code displayed on remote controller:
Error code Nonconformity during installation
The stop valve of outdoor unit is left closed. Open the gas-side stop valve and the liquid-side stop valve.
E3
Refrigerant overcharge.
The stop valve of outdoor unit is left closed. Open the gas-side stop valve and the liquid-side stop valve.
E4
Insufficient refrigerant.
Refrigerant overcharge.
The stop valve of outdoor unit is left closed. Open the gas-side stop valve and the liquid-side stop valve.
F3
Insufficient refrigerant.
F6
Refrigerant overcharge
U2
Insufficient supply voltage
If a check operation has not been
U3
performed.
U4
No power is supplied to outdoor unit.
The stop valve of outdoor unit is left closed. Open the gas-side stop valve and the liquid-side stop valve.
UF
If the right indoor unit piping and wiring are
not properly connected to the outdoor unit.
If the interunit wiring has not be connected
UH
or it has shorted.
44
⎧  The test operation is started automatically.
⎪
The following judgements are conducted within 15 minutes (about 30
minutes at the maximum).
⎪
• "Check for wrong wiring"
⎪
• "Check stop valve for not open"
⎪
• "Check for refrigerant charge"
⎪
• "Pipe length automatic judgement"
⎪
The following indications are conducted while in test operation.
⎪
• LED lamp on outdoor unit PCB
⎪
• Remote controller
⎪
⎩
H1PH2PH3PH4PH5PH6PH7P
h h k h
h k k h
Recalculate the required amount of refrigerant from the piping
length and correct the refrigerant charge level by recovering any
excessive refrigerant with a refrigerant recovery machine.
Check if the additional refrigerant charge has been finished
correctly.
Recalculate the required amount of refrigerant from the piping
length and add an adequate amount of refrigerant.
Recalculate the required amount of refrigerant from the piping
length and correct the refrigerant charge level by recovering any
excessive refrigerant with a refrigerant recovery machine.
Check if the additional refrigerant charge has been finished
correctly.
Recalculate the required amount of refrigerant from the piping
length and add an adequate amount of refrigerant.
Recalculate the required amount of refrigerant from the piping
length and correct the refrigerant charge level by recovering any
excessive refrigerant with a refrigerant recovery machine.
Check to see if the supply voltage is supplied properly.
Perform a check operation.
Turn the power on for the outdoor unit.
Make sure that the right indoor unit piping and wiring are properly
connected to the outdoor unit.
Make sure the interunit wiring is correctly attached to terminals
(X2M) F1/F2 (TO IN/D UNIT) on the outdoor unit PCB.
U3
" will be displayed.)
H2P blinks (test operation)
Indicates "Under Centralized Control" on upper
right.
Indicates "Test Operation" on lower left
abnormal display and correct it.
h h h
h h h
Remedial action
SiUS28-902_B
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Test Operation