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Iftheunitcontinuestobeshutdownbyone ofitssafetycon
-
trols,service shouldbecalled todetermine thecause ofthe
problem. Repeatedly resetting the lockout circuit may
damage the unit.
The following accessories are available to provide low am
-
bient operation to 0°F.
SAFETY FEATURES
1. All condenser fan motors have inherent protection with
automatic reset.
2. Everycompressor isinternallyprotected againstovercurrent,
excessive temperature and primary single phasing.
Thisprotection isprovided byaline breakmotorprotector that
is mounted inside the compressor housing and is connected
between each winding and the common terminal.
3. Every compressor (except HCE150 scrolls)is protected by
crankcase heaters to prevent refrigerant from accumulat
-
ing in the crankcases of the compressor during an “OFF”
cycle.
4. All condenserfan motorsand thesecondary ofevery trans
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former is grounded.
5. Every unit is protected by both a high and a low pressure
control, and these controls are self-contained. Since they
are mounted directly on the access connections and wired
back to the control panel, there are no capillary lines to be
damaged.
MAINTENANCE
CLEANING CONDENSER SURFACE
Dirt shouldnot be allowedto accumulate onthe condenser
coils orother parts in thecondenser air circuit. Cleanas of
-
tenas necessarywith abrush,vacuum cleanerattachment
or other suitable means.
LUBRICATION
The fan motors for these condensing units are equipped
with factory lubricated and sealed ball bearings. They do
not require any maintenance.
COMPRESSOR REPLACEMENT
Contact the local UPG Distribution Center for compressor
or parts.
035-15407-002-B-0404
Unitary Products Group 15