Page 19
V−MAINTENANCE
At the beginning of each cooling season, the system
should be checked as follows:
WARNING
Electric shock hazard. Can cause inju
ry or death. Before attempting to per
form any service or maintenance, turn
the electrical power to unit OFF at dis
connect switch(es). Unit may have
multiple power supplies.
Outdoor Unit
1 − Clean and inspect the condenser coil. You can flush
the coil with a water hose.
2 − The outdoor fan motor is prelubricated and sealed. No
further lubrication is necessary.
3 − Visually inspect connecting lines and coils for evi
dence of oil leaks.
4 − Check wiring for loose connections.
5 − Check for correct voltage at the unit while the unit is op
erating and while it is off.
6 − Check amp−draw of the outdoor fan motor.
Unit nameplate _________ Actual ____________ .
Check amp−draw of the compressor.
Unit nameplate _________ Actual ____________ .
NOTE − If the owner complains of insufficient cooling,
gauge the unit and check the refrigerant charge. Re
fer to section on refrigerant charging in this instruc
tion.
Indoor Coil
1 − If necessary, clean the coil.
2 − Check connecting lines and coils for evidence of oil
leaks.
3 − If necessary, check the condensate line and clean it.
Indoor Unit
1 − Clean or change filters.
2 − Adjust the blower speed for cooling. Measure the pres
sure drop over the coil to determine the correct blower
CFM. Refer to the unit information service manual for
pressure drop tables and procedure.
3 − On belt drive blowers, check the belt for wear and
proper tension.
4 − Check all wiring for loose connections.
5 − Check for correct voltage at the unit (blower operat
ing).
6 − Check amp−draw on blower motor.
Unit nameplate_________ Actual ____________.
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