Daikin VRV III REYQ10PY1B, Service Manual

Page: 189 / 472

Test Operation SiBE37-701
178 Test Operation
[Remote controller malfunction code display]
Remote controller heating mode malfunction codes
Remote controller cooling mode malfunction codes
[Checks after adding refrigerant]
„
Are the stop valves for both liquid and gas open?
„
Is the amount of refrigerant, that has been added, recorded?
Error code
P8
recharge
operation
Close valve A immediately and press the TEST OPERATION button once.
The operation will restart from the charging mode judgement onwards.
P2
charge hold
Close valve A immediately. Check following items:
- Check if the gas side stop valve is opened correctly
- Check if the valve of the refrigerant cylinder is opened
- Check if the air inlet and outlet of the indoor unit are not
obstructed
After correcting the
abnormality, restart the
automatic charging procedure
again.
Error code
PA
,
PH
,
PC
replace
cylinder
Close valve A and replace the empty cylinder. When renewed, open valve A (the outdoor unit will
not stop operating).
The code on the display shows the unit where a cylinder is to be renewed:
PA
= master unit,
PH
= slave unit 1,
PC
= slave unit 2, flashing
PA
,
PH
and
PC
= all units
After recplacing the cylinder, open valve A again and continue the work.
In case of an outdoor multi system, replacing the refrigerant tank of the outdoor unit during
the refrigerant charging operation when the display on the remote controller is not
showing
PA
,
PH
or
PC
, may cause an abnormal stop of the refrigerant charging operation.
P8
recharge
operation
Close valve A immediately.
Restart the automatic charging procedure again.
P2
charge hold
Close valve A immediately. Check following items:
- Check if the high pressure/low pressure gas pipe, suction
gas pipe, liquid pipes and equalizer pipe stop valves are
opened correctly
- Check if the valve of the refrigerant cylinder is opened
- Check if the air inlet and outlet of the indoor unit are not
obstructed
- Check if the indoor temperature is not lower than 10°C DB
After correcting the abnormality,
restart the automatic charging
procedure again.
*
abnormal
stop
Close valve A immediately. Confirm the malfunction code by
the remote controller and correct the abnormality by following
the "Correcting after abnormal completion of the test operation"
on page 25.
Make sure to open the stop valves after charging the refrigerant.
Operating with the stop valves closed will damage the compressor.