Daikin GYEQ20AN Service Manual page 85

SiAUY361411EA
Refrigerant Misfilling Emergency Mode
Perform the following procedure using the switches located next to the hour meter on the outdoor
unit PCB.
Switch operation may not be possible for approximately 10 minutes after the unit is turned on or the
last operations. If operation is not possible, press "SW2 checker wiring change" once to enable
operation. (Do not hold down SW2 for 3 seconds or longer. Doing so can result in wiring change.)
(1) Press NEXT and then press
(2) Press NEXT and then press
(3) Press NEXT a n d t h e n p r e s s
(4) Press ENTER and the engine will start up, initiating
the Refrigerant Misfilling Emergency Mode.
(5) If LED5 (green) on the PCB flashes four times, open the
discharge gas side closing valve. After opening the stop
valve, press ENTER . The LED5 (green) flashes once
or twice. (If LED5 (green) still flashes four times, ENTER is probably
not recognized. In this case, press ENTER again.)
In case of normal completion, the engine stops and LED5 (green) on the
PCB flashes three times.
In the case of abnormal completion, the engine stops and LED5 (green) on
the PCB is continuously lit.
In the case of abnormal completion, press
state before setting to identify the failure on the hour meter. Then deal
with the failure. After correcting the error, reset the power supply *,
close the discharge gas side stop valve, and then perform the
Refrigerant Misfilling Emergency Mode again.
After the normal completion, open the stop valve on the discharge gas side. After that, reset the
power supply * and continue the test run procedure after confirming signal transmission for indoor
and outdoor units.
* Turn off the outdoor unit's breaker. After confirming that none of the LEDs on the PCB are lit, turn on the
breaker to complete the reset.
CAUTION: When starting after the power supply reset, the units operates in protection mode for approximately
10 minutes. The operation may be stopped automatically, but the unit will also switch back to normal
operation automatically.
Device Overview
to set the blinking hour meter display to "2".
UP
to set the blinking hour meter display to "11".
UP
UP
blinking hour meter display to "ON".
2 How to Perform a Test Run
t o s e t t h e
LED5
RUN
SW2
STOP
Checker
Wiring
change
BACK to return to the
– 7 –
Test Run Manual
SW3
UP
SW7
SW6 SW4
BACK NEXT
ENTER
CH DATA
SW5
DOWN
[h]
029133-00E
Type 850 stop valve
Discharge gas side Suction gas side Liquid side
029577-01EN00
Type 560 stop valve
Discharge gas side Suction gas side Liquid side
029578-01EN00
0FGHP-EN0841 DGJ002
74