Daikin RWEYQ26PY1 [114/342] Check operation is not possible in other modes such as collection mode

Daikin RWEYQ30PY1 [114/342] Check operation is not possible in other modes such as collection mode
Si30-813 Test Operation
Test Operation 103
<Cautions for check operation>
z
If operated within about 12 minutes after power supply has been applied to the indoor unit
and outside unit, H2P will turn ON but the compressor does not start running. Before start
operation, make sure that the LED display is correct referring to the table (6) of1.1.3 Check
operation”.
z
The system may require up to 10 minutes until it can start the compressor after an operation
start. This is a normal operation to equalize the refrigerant distribution.
z
The check operation does not provide any means of checking the indoor units individually.
For that purpose, perform normal operation using the remote controller after the check
operation.
z
Check operation is not possible in other modes such as collection mode.
z
If the setting of indoor remote controller is changed before the check operation, it may not be
performed correctly and malfunction code “UF” may be displayed.
Remote controller displays malfunction code
Malfunction
code
Installation error Remedial action
E3
E4
F3
F6
UF
U2
The shutoff valve of an outside unit is left
closed.
Open the shutoff valve.
U1
The phases of the power to the outside
units are reversed.
Exchange two of the three phases (L1, L2,
L3) to make a positive phase connection.
U3 The check operation is not completed. Complete the check operation.
U1
U2
U4
No power is supplied to an outdoor or
indoor unit (including phase interruption).
Check if the power wiring for the outside
units are connected correctly.
(If the power wire is not connected to L2
phase, no malfunction display will appear
and the compressor will not work.)
UF Incorrect transmission between units
Check if the refrigerant piping line and the
unit transmission wiring are consistent with
each other.
E3
F6
UF
U2
Refrigerant overcharge
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.
E4
F3
Insufficient refrigerant
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.
U7
UF
If an outdoor multi terminal is connected
when there is one outside unit installed
Remove the line from the outdoor multi
terminals (Q1 and Q2).
UF
E4
The operation mode on the remote
controller was changed before the check
operation.
Set the operation mode on all indoor unit
remote controllers to “cooling.”
HJ The heat source water is not circulating. Make sure that the water pump is running.
figure 27
Electrical box
Cover of electrical box
Cover for servicing
Inspection cover
Points to be noted when providing services

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