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Installation and Commissioning Guide
Hercules Package Unit
Installation and Commissioning Guide - Hercules Package Unit
Doc. No.0525-021
Ver. 21 221110
26. Maintenance Frequency Checklist
Electrical
Parts
Service Frequency
Detail of Service Check
Service Methods
1
Mth
3
Mth
6
Mth
1
Yr
2
Yrs
3
Yrs
4
Yrs
5
Yrs
Printed Circuit
Boards
Visual Inspection
Tighten Terminals as necessary on
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.
Indoor Unit
Parts
Service Frequency
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 and 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.
Check motors are working
within designed voltages/
currents
Check all voltages/current with a multi
meter to ensure they are within design
specs.
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 and
free flow of water
Clean to eliminate obstructions/ sludge
and check condition of pan. Pour water to
ensure flow
Filter
Check for clogging
by dust.
Clean Filter
Temperature
Readings
Measure air on
and air off
Place temperature probe in return and
supply air of unit.
Damper Moors
(if fitted)
Visual inspection of motors
open/closing. Ensure no
obstructions
Drive motors opened and closed. Ensure
correct operation.
Air pressure
tubing
Visual inspection of plastic
tubing and PTH sensor
Inspect plastic tubing and PTH sensors in
evaporator for kinks or leaks
NOTES
• The above service periods are provided as guide only.
• Some sites may require more frequent servicing.
