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3. Connect the charging gauge to the service port of the 3-way
valve.
4. Start the vacuum pump. Using a micron gauge, evacuate
the system for a minimum of 250 microns and wait for 5
minutes to ensure the readings will not change. The evacu-
ation time varies with different vacuum pump capacity.
Confirm that the charging gauge needle has moved towards
-760mmHg.
See Caution at right is the needle does not
move towards -70mmHg.
5. If no leak is detected, close the valve of the charging gauge and stop the vacuum pump.
Indicator Lights
Fault Diagnosis
If an abnormal condition is detected, the controller will
blink the error code.
NOTE: The unit will not detect sensor missing when the
compressor is ON. Call your dealer immediately when
this error happens.
Checklist
Make sure:
1. The unit is mounted solidly and is rigid in position.
2. Piping and connections are leak proof after charging.
3. Proper wiring has been done.
4. Drainage check: Pour water into left side of drain pan; the water should drain from the right side of the unit.
TEST RUN:
1. Conduct a test run of the unit after the water drainage test and gas leakage test have been completed.
2. Confirm the following:
a. Is the electrical plug firmly inserted into the socket?
b. Are there any abnormal sounds coming from the unit?
c. Is there a smooth drainage of water?
d. Is the condenser fan running, with warm air blowing off the condensing unit?
e. Is the evaporator blower running and discharging cool air?
f. Is the remote control incorporating a 3-minute delay in the circuit?
It requires approximately 3-minutes before the outdoor condensing unit can start.
POSSIBLE REFRIGERANT LEAK
If the gauge needle does not move to -760mmHg, use a
refrigerant detector at the flare type connection of the indoor and
outdoor unit to check for a refrigerant leak. If a leak is detected,
repair the leak.
CAUTION
Error Code
Diagnosis
E1
Room Sensor is open or there is a short
E2
Indoor Coil Sensor is open
E4
Compressor overload; Indoor coil sensor short
Summary of Contents for RR20AVAK9
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Page 25: ...25 APPENDIX LONG LINE SET APPLICATION R 410A ...
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Page 49: ...13 ا ً د عم فارغة ُركت ت الصفحة هذه ...
Page 59: ...23 والصيانة الخدمة ...
Page 61: ...410A R التكييف ألجهزة الطويلة الوصالت مجموعة استعمال الملحق 25 ...