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All installations and services must be performed by qualified personnel.
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: DO NOT UNDER ANY CIRCUMSTANCES; HEAT THE REFRIGERANT CYLINDER
WITH A TORCH OR BY ANY OTHER MEANS OTHER THAN WARM WATER. EXCESSIVE
PRESSURES GENERATED IN THIS MANNER MAY WEAKEN THE REFRIGERANT CONTAINER
AND RESULT IN A CYLINDER EXPLOSION!
If a charge must be added to the system, connect to the suction service port of the service valve and add a
vapor charge only while the system is operating.
RECOMMENDATIONS FOR OPERATING AT LOWER OUTDOOR AMBIENT CONDITIONS
If you are going to be operating the system below 65°F, Thermo Products specifies you must add to the
system the items listed below to aid in its longevity and durability of the compressor.
1. There should be a crankcase heater installed on compressor.
2. A low ambient control (45° contact) added to the 24 volt control circuit.
3. Suction line accumulator.
4. Confirm compressor superheat.
These items will assist in preventing liquid floodback, flooded starts, and refrigerant migration during off
cycle. These situations are detrimental to the life of a compressor.
USER INFORMATION
The following maintenance points should be reviewed periodically to assure that the air conditioning
system will operate properly.
1.) Keep clean air filters in the path of the air flow. If excessively dirty air filters are not changed, this
will cause poor performance of the system, put unnecessary strain on the compressor and this may
cause the system to lock out. Never operate system without clean air filters in place.
2.) Keep the outside condenser coil clean by spraying with a garden hose from the inside of the coil
outward.
WARNING: TURN OFF OR DISCONNECT THE ELECTRICAL
POWER SOURCE BEFORE CLEANING THE CONDENSER COIL.
If the air conditioning system will not operate, check the following points before calling a qualified
serviceman.
1.) Is the sub-base of the thermostat switched to the “COOL” position?
2.) Is the temperature setting on the thermostat low enough to bring the air conditioner on?
3.) If the fan motor or compressor have locked out on thermal-overload, it may be necessary to wait
several hours before the unit will restart. If this happens with any regularity, call your local
serviceman.