If the unit continues to be shut down by one of its safety con- trols, service should be called to determine the cause of the 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.Every compressor is internally protected against over current, excessive temperature and primary single phasing.
This protection is provided by a line break motor protector 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 condenser fan motors and the secondary of every trans- former is grounded.
5.Every unit is protected by both a high and a low pressure control, and these controls are
MAINTENANCE
CLEANING CONDENSER SURFACE
Dirt should not be allowed to accumulate on the condenser coils or other parts in the condenser air circuit. Clean as of- ten as necessary with a brush, vacuum cleaner attachment 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.
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