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06. Maintenance Frequency Checklist
Regular servicing of equipment by a qualified technician is recommended every 12 months for residential applications and
every quarter for commercial applications. Regular servicing of your unit helps in maintaining its optimum performance
and reliability. The following checklist and service periods are provided as a guide only, as some sites may require
more frequent servicing. Filter cleaning can be carried out by the home/office owner.
ELECTRICAL
Parts
1
Mth
Printed Circuit
Boards
Electrical
Connections
INDOOR UNIT
Parts
1
Mth
Casing / Panels
and Frames
Insulation
Fan
Motor
Heat
Exchanger
Drain Pan/
Condensation
line
Filter*
Temperature
Readings
Zone Motors
Duct Works
* Service period for filter cleaning may vary depending on operating time and surrounding environment
8
Service Period
3
6
1
2
3
Mth
Mth
Yr
Yrs
Yrs
Yrs
Service Period
1
2
3
3
6
Mth
Mth
Yr
Yrs
Yrs
Yrs
Ω
Owner's Manual - R-32 Ducted Systems
Doc. No.9590-8000 Ver. 2 220616
R-32 Ducted Systems
4
5
Detail of Service Check
Yrs
Visual Inspection
Check all electrical terminals,
mains, communications, etc
4
5
Detail of Service Check
Yrs
Visual check for damage, rust
and dust accumulation.
Visual check for insulation
conditions.
Visual check for run out of
balance and dust attached
Visual check on wiring.
Insulation resistance check to
be carried out annually
Check for clogging by dust.
Check for leaks/damage.
Check for obstructions and
free flow of water
Check for clogging by dust.
Measure air on and air off
Visual inspection of motors
open/housing. Ensure no
obstructions
Inspect duct works for air gaps.
Service Methods
Tighten Terminals as necessary
on printed circuit boards
Re-tighten if loose.
Service Methods
For highly corrosive
environment, wash panels
quarterly with water and neutral
detergent solution. Wax panels.
Repair/re-paint where required.
Repair/replace insulation
material.
Clean off dust as necessary to
negate possibility of fan running
out of balance
Measure insulation resistance.
Should be more than 1MΩ
Clean air inlet side as necessary.
Straighten any bent fins using
fins comb.
Clean to eliminate obstructions/
sludge and check condition of
pan. Pour water to ensure free
flow.
Clean Filter
Place temperature probe in
return and supply air of unit.
Drive motors opened and
closed. Ensure correct
operation.
Re-tape any loose ducts.