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TABLE 14
APPROACH TEMPERATURE - Fin/Tube - TXV
Unit
Liquid Temp. Minus Ambient Temp.
1st Stage 2nd Stage
092S + +
102S + +
120S + +
150S + +
V- SYSTEMS SERVICE CHECKS
A-Cooling System Service Checks
periodically using the approach method. The approach
method compares actual liquid temperature with the
NOTE - When unit is properly charged, discharge line
pressures should approximate those in TABLE 6 through
TABLE 13.
VI-MAINTENANCE
service technician.
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at disconnect
switch(es). Unit may have multiple power
supplies.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
A-Filters
should be checked and replaced when necessary with
NOTE - Filters must be U.L.C. certied or equivalent for
use in Canada.
PULL TO
REMOVE
FILTERS
FIGURE 16
B-Lubrication
lubrication is required.
C-Evaporator Coil
Clean using mild detergent or commercial coil cleaner.
D-Condenser Coil
Clean condenser coil annually with water and inspect
monthly during the cooling season.
prevent damage.
E-Supply Air Blower Wheel
access panel or to clean blower wheel.
F-Electrical
blower motor.
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