72
Installation & Commissioning Guide PKY470-700 Tri-Capacity Package with CM100 Control
Doc. No.0525-032
Ver. 9 180921
MAINTENANCE FREQUENCY CHECKLIST
Indoor Section
Parts
Service Period
Detail of Service Check
Service Methods
1
Mth
3
Mth
6
Mth
1
Yr
2
Yrs
3
Yrs
4
Yrs
5
Yrs
Casing / Panels
and Frames
Visual check for
damage, rust and dust
accumulation.
For highly corrosive environment,
wash panels quarterly with water
& neutral detergent solution. Wax
panels. Repair / re-paint where
required.
Insulation
Visual check for
insulation conditions.
Repair / replace insulation material.
Fan
Visual check for run
out of balance and dust
attached
Clean off dust as necessary to
negate possibility of fan running out
of balance
Motor
Ω
Visual check on wiring.
Insulation resistance
check to be carried out
annually
Measure insulation resistance
to earth with Megger. Insulation
resistance should be more than
1MΩ.
"Heat
Exchanger"
Check for clogging by
dust. Check for leaks /
damage.
Clean air inlet side as necessary.
Straighten any bent fins using fins
comb.
Drain Pan/
Condensation
line
Check for obstructions &
free flow of water
Clean to eliminate obstructions/
sludge & check condition of pan.
Pour water to ensure flow
Filter
Check for clogging by
dust.
Clean Filter
Temperature
Readings
Measure air on & air off
Place temperature probe in return
& supply air of unit.
Damper Motors
(If fitted)
Visual inspection of
motors open/closing.
Ensure no obstructions
Drive motors opened & closed.
Ensure correct operation
Electrical
Parts
Service Period
Detail of Service Check
Service Methods
1
Mth
3
Mth
6
Mth
1
Yr
2
Yrs
3
Yrs
4
Yrs
5
Yrs
Isolators / Printed
Circuit Boards
Visual Inspection
Tighten Terminals as necessary on
isolators & printed circuit boards
Electrical
Connections
Check all electrical
terminals, mains,
communications, etc
Re-tighten if loose.
Magnetic
Contactor
Check for loose terminal
connections.
Tighten electrical terminals.
Remove any dust.
