PRELIMINARY DATA ONLY Ver. 5.01 210406
THIS LABEL TO BE REMOVED ON SIGN-OFF
56
Installation and Commissioning Guide- Package Ducted Variable Capacity Commercial
Doc. Part No. 0525-067 Ver. 5 210414
Installation and Commissioning Guide
Variable Capacity Commercial
Outdoor 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
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 insulation tester.
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.
Condensate
Drain Line
(if available)
Check for obstructions and
free flow of water.
Clean to eliminate obstructions /
sludge and check condition of drain
line. Pour water to ensure free flow.
Compressor
Ω
Check for high / low
pressure. Measure
insulation resistance. Check
compressor for abnormal
noise/vibrations.
Measure insulation resistance.
Should be more than 1MΩ.
Refrigeration
Operational
Readings
Make note of operational
reading in test cool/heat.
Check operating pressures, record
superheat and subcooling values.
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.
Outdoor Fan
Speed Capacitor
Check for any bulge on the
capacitors & capacitance.
Make it electrically safe prior to
measure the capacitor capacitance.
Measured capacitance should be
with in the printed tolerances on
the capacitor.
