Commercial Air Conditioning, Heating and Refrigeration

Spring AC Check Up

1. Inspect electrical connections including contactor points and capacitor ratings.
2. Water wash condenser coil.
3. Visual inspect evaporator coil.
4. Spray evaporator coil with no rinse cleaner.
5. Add pan tabs to help prevent algae buildup.
6. Flush condensate drain line.
7. Inspect blower motor and wheel.
8. Check amps on blower motor, condenser fan motor and compressor.
9. Check refrigerant pressures, temperatures, superheat and subcooling.
10. Check Temperature drop across the evaporator coil.
11. Visual inspect duct system, looking for leaky, torn or worn ductwork.
12. Change customer supplied filters when necessary.
13. Check thermostat for temperature accuracy.

Fall Heating Check Up

1. Gas furnace visual inspect heat exchanger for cracks or rust holes.
2. Check flue pipe for proper pitch and termination.
3. Test induced draft motor pressure switch for proper operation.
4. Check incoming gas pressure.
5. Check burner manifold gas pressure.
6. Check for proper gas sediment trap.
7. Check for proper hard gas line piping out of furnace cabinet.
8. Electric heat kits…check all wiring connections.
9. Check each heating element for any defects or breakage.
10. Check High limit Switches.
11. Check operation of heat sequencers and proper staging of heating elements.
12. Inspect blower motor and assemble.
13. Test blower motor run capacitor.
14. Inspect electrical connections.
15. Check and test all safety roll out switches and high limit switch for proper operation.
16. Run test and check temperature rise on system and confirm it is within range per MFG. specifications.
17. Check thermostat for temperature accuracy.