Service Mode Operation - Daikin CMSQ200A7W1B Installationsanleitung

Correcting after abnormal completion of the test operation
The test operation is only completed if there is no malfunction code
displayed on the remote controller. In case of a displayed malfunction
code, perform the following actions to correct the abnormality:
Confirm the malfunction code on the remote controller
Installation error Error code
The stop valve of an
E3
outdoor unit is left
E4
closed.
F3
UF
The phases of the
U1
power to the outdoor
units are reversed.
No power is supplied
U1
to an outdoor or
U4
indoor unit (including
phase interruption).
Incorrect
UF
interconnections
between units
Refrigerant
E3
overcharge
F6
UF
The wiring is
U7
connected to the
UF
Q1/Q2 (Out Multi)
Insufficient refrigerant
E4
F3
After correcting the abnormality, press the
and reset the malfunction code.
Carry out the test operation again and confirm that the
abnormality is properly corrected.
CMSQ200+250A7W1B
Air conditioning system
4PW47543-1
Remedial action
Check referring to the table in
"11.5. Additional refrigerant
charge" on page 16
Exchange two of the three phases
(L1, L2, L3) to make a positive
phase connection.
Check if the power wiring for the
outdoor 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.)
Check if the refrigerant line piping
and the unit wiring are consistent
with each other.
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.
Remove the wiring from the Q1/Q2
(Out Multi).
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.
button
BS3 RETURN
13. S
ERVICE MODE OPERATION
Vacuuming method
At the first installation, this vacuuming is not required. It is required
only for repair purposes.
1 When the unit is at standstill and under the setting mode 2, set
the required function B (refrigerant recovery operation/
vacuuming operation) to
ON
- After this is set, do not reset the setting mode 2 until the
vacuuming is finished.
- The H1P LED is on and the remote controller indicates
(test operation) and
operation will be prohibited.
2 Evacuate the system with a vacuum pump.
3 Press the button and reset the setting mode 2.
BS1 MODE
Refrigerant recovery operation method
by a refrigerant reclaimer
1 When the unit is at standstill and under the setting mode 2, set
the required function B (refrigerant recovery operation/
vacuuming operation) to
ON
- The indoor unit and the outdoor unit expansion valves will
fully open and some solenoid valves will be turned on.
- The H1P LED is on and the remote controller indicates
(test operation) and
operation will be prohibited.
2 Cut off the power supply to the indoor units and the outdoor unit
with the circuit breaker. After the power supply to one side is cut
off, cut off the power supply to the other side within 10 minutes.
Otherwise, the communication between the indoor and outdoor
unit may become abnormal and the expansion valves will be
completely closed again.
3 Recover the refrigerant by a refrigerant reclaimer. For details,
see the operation manual delivered with the refrigerant
reclaimer.
(ON).
(external control) and the
(ON).
(external control) and the
Installation manual
21