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54
The charts reference a liquid pressure (psig) and temperature at a
point between the condenser coil and the subcooling/reheat
dehumidification coil. A tap is provided on the unit to measure
liquid pressure entering the subcooling/reheat dehumidification
coil.
IMPORTANT: The subcooling mode charging charts (Fig.
64--67) are to be used ONLY with units having the
Humidi--MiZer adaptive dehumidification system. DO NOT use
standard charge (Fig. 60--63) for units with Humidi--MiZer
system, and DO NOT use Fig. 64 --67 for standard units.
C06145
Fig. 66 --- Cooling Charging Chart, 48HJ005 with
Optional Humidi--MiZer Adaptive Dehumidification System
C06146
Fig. 67 --- Cooling Charging Chart, 48HJ007 with
Optional Humidi--MiZer Adaptive Dehumidification System
TO USE COOLING CHARGING CHART, ST
ANDARD
UNIT
Take the outdoor ambient temperature and read the suction
pressure gauge. Refer to charts to determine what suction
temperature should be. If suction temperature is high, add
refrigerant. If suction temperature is low, carefully recover some
of the charge. Recheck the suction pressure as char ge is adjusted.
Example (Fig. 59):
Outdoor Temperature 75F.........................
Suction Pressure 70 psig...........................
Suction Temperature should be 48F..................
(Suction temperature may vary 5F.)
If a charging device is used, temperature and pressure readings
must be accomplished using the charging charts.
48HE,HJ