15
COOLING CHARGING CHARTS
How To Use Cooling Charging Charts:
Take the outdoor ambient temperature and read the
suction pressure gauge. Refer to chart 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 charge is adjusted.
SIZE DESIGNATION
NOMINAL TONS
REFERENCE
A04 3
A05 4
A06 5
A07 6
D08 7.5
D09 8.5
D12 10
D14 12.5
EXAMPLE:
Model 50TCQ*D14
Outdoor Temperature 85F (29C)..................
Suction Pressure 140 psig (965 kPa).................
Suction Temperature 55 F (13C)..................
Refer to Fig. 19 through Fig. 26 for Cooling Charging
Charts.
Compressors
Lubrication:
Compressors are charged with the correct amount of oil at
the factory.
UNIT DAMAGE HAZARD
Failure to follow this caution can result in damage to
components.
The compressor is in a Puron (R−410A) refrigerant
system and uses a polyolester (POE) oil. This oil is
extremely hygroscopic, meaning it absorbs water
readily. POE oils can absorb 15 times as much water
as other oils designed for HCFC and CFC refrigerants.
Avoid exposure of POE oil to the atmosphere. This
exposure to the atmosphere can cause contaminants
that are harmful to R−410A components to form.
Keep POE oil containers closed until ready for use.
CAUTION
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