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 is protected by crankcase heaters to
prevent refrigerant from accumulating 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 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.
035-15406-002-A-0504
Unitary Products Group
13
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 often as nec-
essary with a brush, vacuum cleaner attachment or other suit-
able means.
SECURE OWNER'S APPROVAL
: When the system is functioning properly, secure the owner's approval. Show him the
location of all disconnect switches and the thermostat. Teach him how to start and stop the unit and how to adjust temperature set-
tings within the limitations of the system.
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.
CAUTION:
DO NOT ATTEMPT TO START THE COMPRESSOR WITH-
OUT AT LEAST 8 HOURS OF CRANKCASE HEAT OR COM-
PRESSOR DAMAGE WILL OCCUR.
