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35. FAN BLADE SETTING DIMENSIONS
Shown in Figure 19 is the correct fan blade setting
dimension for proper air delivery across the outdoor
coil.
FIGURE 19
FAN BLADE
36. LOW-NOx BURNER ASSEMBLY "N"
SUFFIX MODELS ONLY – U.S.
INSTALLATIONS ONLY
NATURAL GAS MODELS ONLY
Model numbers designated with an "N" are designed
for low NOx emissions which comply with all
California Air Quality Management District
regulations for nitrogen oxide emission levels. Refer
to Figure 20 for NOx insert information.
A
FIGURE 20
LOW NOx INSERT
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.
TABLE 15
FAN BLADE DIMENSION
M
o
d
l e
W
G
4
2
1
W
G
4
8
1
W
G
6
0
1
* *
IMPORTANT
For propane (LP) conversions the NOx
reduction screen inserts shown below must be
removed. This is accomplished by removing
the burner box assembly and removing the
NOx screens. Reassemble unit properly before
firing. Failure to remove the NOx screens can
result in improper operation and malfunction of
the burner system.
i D
m
e
n
s
o i
n
A
1
1
1
* *
MIS-1481
Manual 2100-365
Page 37
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