Test Run And Final Check; Wiring Error Check - Daikin 4AMX80E7V3B Installation Manual

T
EST RUN AND FINAL CHECK
Before starting the test run, measure the voltage at the primary
side of the safety breaker. Check that it is 230 V.
Check that all liquid and gas stop valves are fully open.
Check that piping and wiring all match. The wiring error check
can be conveniently used for underground wiring and other
wiring that cannot be directly checked.
NOTE Remark that during the first running period of the unit,
required power input may be higher than stated on the
nameplate of the unit. This phenomenon originates
from the compressor that needs elapse of a 50 hours
run in period before reaching smooth operation and
stable power consumption.

Wiring error check

This product is capable of automatic correction of wiring errors.
Press the wiring error check switch SW3 on the outdoor unit
service PCB. Approximately 15–20 minutes after the switch is
pressed, the errors in the connection wiring will be corrected.
However, the wiring error check switch will not function the first
3 minutes after the safety breaker was turned on, or depending
on the outside air condition (See Note 2).
S102
S2
A
1
2
1
3
4
1
The service monitor LEDs indicate whether or not correction is
possible, as shown in the table below. For details about how to read
the LED display, refer to the service manual.
If self-correction is not possible, check the indoor unit wiring and
piping in the usual manner.
LED 1 2 3
All flashing
Flashing one after
another
Status
One or more of
LEDs 1 to 4 are ON
4AMX80E7V3B
R410A Split series
4PW38479-1A
Wiring error check switch SW3
4 Message
Automatic correction is impossible
Automatic correction is completed
Abnormal stop (See Note 4)
Example of correction of wiring error
A
B
C
D
Piping connection between outdoor unit and indoor unit (from
port A, B, ... on the outdoor unit to indoor unit A, B, ...)
Wiring connection from the outdoor unit terminal board to the
indoor units.
In case that the wiring error check was not interrupted, the LED
lighting sequence after the automatic wiring correction in this
example is 2→1→3→4.
NOTE 1 For 2 rooms, LED 3 and 4 do not light up, and for
3 rooms, LED 4 does not light up.
If the outside air temperature is ≤5°C, the wiring
2
error check function will not operate.
3 After wiring error check operation is completed,
LED indication will continue until ordinary
operation starts. This is normal.
4 Follow procedures as mentioned on the service
sticker on the rear side of the service cover.
Test run and final check
To test cooling, set for the lowest temperature. To test heating,
set for the highest temperature. (Depending on the room
temperature, only heating or cooling (but not both) may be
possible.)
After the unit is stopped, it will not start again (heating or
cooling) for approximately 3 minutes.
During the test run, first check the operation of each unit
individually. Then also check the simultaneous operation of all
indoor units.
Check both heating and cooling operation.
After running the unit for approximately 20 minutes, measure the
temperatures at the indoor unit inlet and outlet. If the
measurements are above the values shown in the table below,
then they are normal.
Temperature difference between
inlet and outlet
During cooling operation, frost may form on the gas stop valve or
other parts. This is normal.
Operate the indoor units in accordance with the included
operation manual. Check that they operate normally.
A
B
C
D
Cooling Heating
±8°C ±20°C
Installation manual
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