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COOLING UNIT MAINTENANCE
PERIODIC CLEANING
Periodically wash all external surfaces of Cooling Unit, rinse with clean water, then wipe dry with a clean soft
cloth. DO NOT USE ABRASIVE TYPE CLEANERS.
CLEANING CONDENSER COIL
Cooling Unit Equipped With Condenser Coil and Air Filter.
(see Figure 5)
CAUTION: Air filter on back of Cooling Unit must be removed and cleaned every 30 days.
Excessive accumulation of dust, lint, and grease on air filter will restrict air flow through
the Unit and cause refrigeration system to overheat
Condenser coil air intake filter on back of Cooling Unit may either be removed and washed out with detergent
solution or may be vacuumed in place on Unit.
Remote Condenser Coil and Fan Assembly (If applicable).
see Figure 6
CAUTION: The Remote Condenser Coil and Fan Assembly condenser coil must be cleaned
every 30 days. Circulating air, required to cool the coil, is drawn in at bottom and is
exhausted out through top of unit. Failure to clean condenser coil will cause refrigeration
system to overheat.
1. Disconnect electrical power to Cooling Unit at disconnect switch.
2. Clean bottom side of condenser coil using vacuum cleaner, whisk broom, or soft-bristle brush to remove
any debris from coil.
3. Check and make sure fan blade moves freely and are not touching any surfaces, are not bent, or out of
balance. Check and make sure wire guard is properly installed and securely fastened.
4. Check and make sure roof area immediately surrounding unit is free and clear of any debris that may have
collected such as leaves, paper, trash, etc.
5. Restore electrical power to Cooling Unit at disconnect switch.
CHECKING ICE WATER BATH
(see applicable Figure 5 or 6)
A gurgle heard from Cooling Unit indicates water level in water tank is low. This indicates the water tank water
level float control is not operating properly and must be repaired or replaced. If a continuous trickle of water is
coming out of the water tank overflow tube, this indicates the water level float control is not shutting off properly
and must be repaired or replaced. Ice water bath and ice bank should be checked for cleanliness and water
tank coils and the water level float control should be checked for excessive mineral deposit build-up as follows: