ICE AIR CHW Operating Manual - page 9

OPERATING & MAINTENANCE MANUAL

 – 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.