McQuay MCC 010C/CR, Manual, Page: 61 / 78

60
Servicing and Maintenance Servicing and Maintenance
Warning
Disconnect from Main Supply before Servicing the air conditioner
The unit is designed to give a long life operation with minimum maintenance required. However, it should be
regularly checked and the following items should be given due attention.
Components Maintenance Procedure Recommended Schedule
Air Filters 1. Clean with a vacuum cleaner, or by tapping
lightly and then washing in lukewarm water
(below 40°C) With neutral soap.
2. Rinse well to dry before re-installing.
3. Note : Never use petrol, thinner, benzene or
any other chemicals.
Every 2 weeks.
More frequently if required.
Indoor Unit 1. Clean away dirt or dust on grille or panel by
wiping with a soft cloth soaked in lukewarm
(or cold) water or neutral detergent solution.
2. Note: Never use petrol, thinner, benzene or
any other volatile chemicals, which may
cause plastic surface to deform.
Every 2 weeks.
More frequently if required.
Condensate Drain
Pan & Pipe
1. Check and clean. Every 3 months.
Indoor Fan 1. Check for unusual noise. As necessary.
Indoor/Outdoor Coil 1. Check and remove dirt which are clogged
between fins.
2. Check and remove obstacles which hinder air
flow in and out of indoor/outdoor unit.
Every month.
Every month.
Electrical 1. Check voltage, current and wiring.
2. Check faulty contacts caused by loose
connections, foreign matters, etc.
Every 2 months.
Every 2 months.
Compressor 1. No maintenance needed if refrigerant circuit
remains sealed. However, check for
refrigerant leak at joints & fittings.
Every 6 months.
Compressor
Lubrication 1. Oil is factory charged. Not necessary to add oil
if circuit remains sealed.
No maintenance required.
Fan Motors
Lubrication 1. All motors pre-lubricated and sealed at factory. No maintenance required.
PRE-START UP MAINTENANCE (AFTER EXTENDED SHUTDOWN)
- Inspect thoroughly and clean indoor and outdoor units.
- Clean or replace air filters.
-
Clean condensate drain line.
-
Clean clogged indoor and outdoor coils.
- Check fan imbalance before operation.
- Tighten all wiring connections and panels.
-
Check for refrigerant leakage.