OPERATING & MAINTENANCE MANUAL
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CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)
9
OPERATING & MAINTENANCE MANUAL
-
CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)
EVAPORATOR MOTOR AND BLOWER ASSEMBLY
If there is evidence of dirt or dust build-up in the
evaporator motor or blowers, they should be cleaned
either by vacuum cleaning (if working in an apartment)
or by removing the unit to a workshop location and
cleaning with compressed air. Always obey safety
guidelines for using compressed air in this latter case.
Your
ICE AIR CHW
has permanently lubricated motor
bearings that do not require additional lubrication.
Blowers and motor are factory assembled for quiet
performance – if there is any excessive noise and
vibration from this assembly, it should be serviced by
a qualified technician.
COMPRESSOR
Annual check should be performed to detect potential
problems.
•
Amperage draw should not exceed normal
full load amps (FLA) (consult nameplate for
information.)
HEAT EXCHANGER
Water coil maintenance is not required. If the unit installation
is located in a system with water problem history it is best to
establish a periodic maintenance program. It is the building’s
responsibility to maintain a water system that should provide
your unit with treated and filtered water to keep water flowing
freely through your equipment.
Generally if the water flow exceeds 3 gpm per tonthe water
elocities should keep your coil free of scaling and debris that
could lead to coil erosion and fouling.
HEATING COIL
There is a hydronic heating coil (water) placed next to the
evaporator coil. When the thermostat calls for Heat, the water i
s redirected from the coaxial coil into the refrigeration circuit to
the hydronic coil.
VALVES
There are two valves: (1) Normally Closed control valve that
controls water to the coaxial coil in Cooling Model and (1)
Normally Open control valve that controls water to the hydronic
heating coil in Heating Mode. This is controlled by the logic of
the PC board.
GENERAL UNIT INSPECTION:
Visually inspect unit at least
once a month. Pay special attention to hose assemblies and con-
nections. Repair any leaks and replace deteriorated hose
immediately to avoid potential costly damage to your property
due to component failure.
