Allied Air Enterprises 4AC18LT - Manual (Page 21)

506469-01 Issue 1008
MAINTENANCE
Maintenance and service must be performed by a qualified
installer or service agency.
At the beginning of each cooling season, the system should
be checked as follows:
1. Clean and inspect condenser coil. Coil may be flushed
witha a water hose. Be sure the power is off before usig
water to clean the coil.
2. Outdoor fan motor is pre-lubricated and sealed. No further
lubrication is needed.
3. Visually inspect connecting lines and coils for evidence
of oil leaks.
4. Check wiring for loose connections.
5. Check for correct voltage at unit (with unit operating).
6. Check amp-draw outdoor fan motor.
Unit nameplate ____________ Actual __________
NOTE: If owner complains of insufficient cooling, the
unit should be gauged and refrigerant charge checked. Refer
to the Refrigerant Charging section on page 12.
Indoor Coil
1. Clean coil, if necessary.
2. Check connecting lines and coils for evidence of oil leaks.
3. Check condensate pan line and clean, if necessary.
Indoor Unit
1. Clean or change filters.
2. Adjust blower speed for cooling. Measure the pressure
drop over the coil to determine the correct blower CFM.
3. Belt drive blowers: Check belt for wear and proper
tension.
4. Check all wiring for loose connections.
5. Check for correct voltage at unit (with unit operating).
6. Check amp-draw on belower motor.
Unit nameplate_____________ Actual _________
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Before performing maintenance operations on system,
turn the electric power to unit OFF at disconnect
switch(es). Unit may have multiple power supplies.
Electrical shock could cause personal injury or death.
WARNING