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TROUBLESHOOTING
FAN BLADE SETTING DIMENSIONS
Shown in Figure 7 is the correct fan blade setting
dimension for proper air delivery across the outdoor coil.
Any service work requiring removal or adjustment in
the fan and/or motor area will require that the dimension
below be checked and blade adjusted in or out on the
motor shaft accordingly.
FIGURE 7
FAN BLADE SETTING DIMENSION
R-410A
REFRIGERANT CHARGE
This unit was charged at the factory with the quantity of
refrigerant listed on the serial plate. AHRI capacity and
efficiency ratings were determined by testing with this
refrigerant charge quantity.
The following pressure tables show nominal pressures for
the units. Since many installation specific situations can
affect the pressure readings, this information should only
be used by certified technicians as a guide for evaluating
proper system performance. They shall not be used to
adjust charge. If charge is in doubt, reclaim, evacuate
and recharge the unit to the serial plate charge.
Manual 2100-509E
Page
16 of 17
TABLE 3
FAN BLADE DIMENSION
Model
Dimension A
W12Aà
1/2"
TABLE 4
INDOOR BLOWER
PERFORMANCE
CFM @ 230V / 115V
E.S.P.
in
Dry / Wet
H
O
2
High
.0
530 / 500
.1
485 / 460
.2
440 / 425
.3
390 / 375
.4
325 / 300
TABLE 5
RATED CFM AND ESP
RECOMMENDED AIRFLOW RANGE
°
°
Model
Rated
Rated
CFM
ESP
W12Aà
400
.10
Rated CFM and ESP on low speed tap.
°
TABLE 6
MAXIMUM ESP OF OPERATION
ELECTRIC HEAT ONLY
Model
W12A2-A00
A03
A05
W12A1-K00
K02
Values shown are for units equipped with STD
1" throwaway filters. Derate ESP by .15 for 2"
pleated filters.
W12Aà
230V / 115V
Dry / Wet
Low
465 / 425
415 / 400
365 / 350
315 / 300
270 / 265
Recommended
Airflow Range
500 - 300
ESP
.35
.35
.35
.35
.35
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