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SERVICE HINTS
1. Caution homeowner to maintain clean air filters at all
times. Also, not to needlessly close off supply and
return air registers. This reduces air flow through the
system, which shortens equipment service life, as well
as, increasing operating costs.
2. Check all power fuses or circuit breakers to be sure that
they are the correct rating.
3. Periodic cleaning of the outdoor coil to permit full and
unrestricted air flow circulation is essential.
FAN BLADE SETTING DIMENSIONS
Shown in Figure 10 are the correct fan blade setting
dimensions 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 dimensions below be
checked and blade adjusted in or out on the motor shaft
accordingly.
FIGURE 10
FAN BLADE
C
A
TABLE 12
FAN BLADE SETTING
M
o
d
l e
i D
m
e
n
s
o i
n
A
H
A
C
1
8
1
H
A
C
2
4
1
" 5
H
A
C
3
0
1
H
A
C
3
6
1
H
A
C
4
2
1
H
A
C
4
8
1
- 4
/ 3
" 4
H
A
C
6
0
1
SERVICE
B
7960-337
F
a
n
H
u
b
L
o
c
t a
o i
n
s
B
C
Manual 2100-346
Page
17
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