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TK 55711-19-OP-EN
Air Conditioning System
Pretrip
500
Hrs
Annual
2,000
Hrs
Check condition of or service the following:
•
•
Check refrigerant level.
•
•
Check refrigerant lines for rubbing or damage.
•
•
Inspect, clean and (if necessary) replace evaporator air filter. It may be
necessary to check or replace it more often if conditions require.
•
•
Inspect evaporator drain valves (kazoos) to ensure that they are in
place, in good condition and are sealing.
•
Steam clean condenser and APU pre-cooler coil. Do not bend coil fins.
•
Blow out evaporator coil and evaporator water drains with air. Do not
bend coil fins.
Heater
Montly
Annually
Check condition of or service the following:
•
•
Start and run for at least 20 minutes each month.
•
•
Inspect combustion air intake tube and exhaust pipe for restrictions or
blockage.
•
•
Inspect ducting, air intake screen, and air outlet for restrictions or blockage.
•
Remove glow pin and inspect for carbon build up. Clean as needed.
•
Remove glow pin screen and inspect for carbon build up. Replace.
•
Change fuel pump screen.
