AAON CB-060 - Manual (Page 23)

23
Correct an overcharged system by reducing
the amount of refrigerant in the system to
lower the sub-cooling.
The system is undercharged if the superheat
is too high and the sub-cooling is too low
Correct an undercharged system by adding
refrigerant to the system to reduce superheat
and raise sub-cooling.
If the sub-cooling is correct and the
superheat is too high, the TXV may need
adjustment to correct the superheat.
Air Flow
Table 4 - Performance Testing Air Flow Setpoints
Model Cooling Stage 2
(cfm)
Cooling Stage 1
(cfm)
Heating Stage 2
(cfm)
Heating Stage 1
(cfm)
CB-B-024-*-*-1 885 663.75 885 796.5
CB-B-036-*-*-1 1250 937.5 1250 1125
CB-B-048-*-*-1 1500 1125 1500 1350
CB-B-060-*-*-1 1545 1158.75 1545 1390.5
DO NOT OVERCHARGE!
Refrigerant overcharging leads to
excess refrigerant in the condenser
coils resulting in elevated compressor
discharge pressure.
CAUTION
Before completing startup and
leaving the unit a complete operating
cycle should be observed to verify
that all components are functioning
properly.
CAUTION