Servicing And Maintenance - McQuay MWSC 010 Series Manual

Servicing And Maintenance

Disconnect from the main supply before servicing the air conditioner unit.
SERVICE PARTS
Indoor air fi lter
Indoor unit
Condense
drainpan & pipe
Indoor fan
Indoor / outdoor coil
Power supply
Compressor
Compressor oil
Fan motor oil
Pre Start Up Maintenance
After Extended Shutdown
ó Inspect thoroughly and clean indoor and outdoor units.
ó Clean or replace air fi lter.
ó Clean condense drain line.
ó Clean clogged indoor and outdoor coils.
ó Check fan imbalance before operation and panels.
ó Tighten all wiring connections and panels.
ó Check for refrigerant leakage.
MAINTENANCE PROCEDURES
1.Remove any dust adhered on the fi lter by using a vacuum
cleaner or wash in lukewarm water (below 40 °C) with
neutral cleaning detergent.
2. Rinse well and dry the fi lter before placing it back onto
the unit.
3.Do not use gasoline, volatile substances or chemical to
clean the fi lter.
1.Clean any dirt or dust on the grille or panel by wiping it
using soft cloth soaked in lukewarm water (below 40 °C)
with neutral detergent solution.
2.Do not sue gasoline, volatile substances or chemical to
clean the indoor unit.
1.Check its cleanliness and clean it if necessary.
1.Check for any abnormal noise.
1.Check and remove any dirt clogged between the fi ns.
2.Check and remove any obstacles that hinder air fl owing
into and out of the indoor / outdoor unit.
1.Check the voltage and current of the indoor and outdoor
unit.
2.Check the electrical wiring for any faulty contacts caused
by loose connections, foreign matters etc. Tighten the
wires onto the terminal block if necessary.
1.No maintenance needed if the refrigerant circuit remain
sealed. However, check for any refrigerant leaks at all
joints and fi tting.
1.The compressor oil is factory-precharged. It is not
necessary to add any oil if the circuit remains sealed.
1.All motor pre-lubricated and sealed at factory.
Warning
Page 48
PERIOD
At least once every 2
weeks.
More frequently if
necessary.
At least once every 2
weeks.
More frequently if
necessary.
Every 3 months.
When necessary.
Every month.
Every month.
Every 2 months.
Every 2 months.
Every 6 months.
No maintenance required.
No maintenance required.