Installation and Commissioning Guide
Hercules Package Unit
69
Installation and Commissioning Guide - Hercules Package Unit
Doc. No.0525-021
Ver. 21 221110
Outdoor 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
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.
Condensate
Drain Line
Check for obstructions and
free flow of water
Clean to eliminate obstructions/ sludge
and check condition of drain line. Pour
water to ensure flow
Compressor
Ω
Check for high / low
pressure. Measure
insulation resistance.
Check compressor for
abnormal noise/vibrations
Measure insulation resistance to earth
with Megger. Insulation resistance should
be more than 1MΩ. Ensure to isolate first
the VSD from the compressor before
measuring insulation resistance. Also
ensure sump heater is operating correctly.
Compressor
Drive
For variable drive
compressor check
full operation of drive
from minimum hertz
to maximum, check air
filters on drive, check fan
operation of drive
Check compressor amperage and RPM
feedback from compressor on drive. Clean
air filters on drive.
Check ventilation holes on top and bottom
of drive cover are free of any obstructions.
Refrigeration
Operational
Readings
Make note of operational
reading in test cool/heat
Check operating pressures, record super
heat and sub-cool values
Refrigeration
Metering
Device
Check metering device
operation
Ensure metering device is operating
correctly and any solenoids are within
good working order.
Refrigeration
Leaks
Visual Leak Check
Check for signs of visual leaks or any oil
signs
Safety
Devices
Check calibration of safety
devices such as HP and LP
controls, sensors, etc
Check resistance of sensors, pressure cut
in / cut out of pressure controls
Faults
Check for any previous
fault history on unit.
Investigate any causes for previous faults,
reset fault history.
