Troubleshooting – Bard WA491 User Manual
Page 18
Manual 2100-398
Page 16
REMOVAL OF FAN SHROUD
1. Disconnect all power to the unit.
2. Remove the screws holding both grilles, one on each
side of unit, and remove grilles.
3. Remove screws holding fan shroud to condenser
and bottom. Nine (9) screws.
FIGURE 9
FAN BLADE SETTING
TROUBLESHOOTING
4. Unwire condenser fan motor.
5. Slide complete motor, fan blade, and shroud
assembly out the left side of the unit.
6. Service motor/fan as needed.
7. Reverse steps to reinstall.
REFRIGERANT CHARGE
The correct system R-22 charge is shown on the unit
rating plate. Optimum unit performance will occur with
a refrigerant charge resulting in a suction line
temperature (6” from compressor) as shown in Table 6.
Table 7A on Page 18 for models WA381 and WA491
TABLE 5
FAN BLADE DIMENSION
l
e
d
o
M
n
o
i
s
n
e
m
i
D
A
1
8
3
A
W
3
2
4
A
W
4
8
4
A
W
1
9
4
A
W
2
0
6
A
W
5
7
.
1
The suction line temperatures in table above are based
upon 80° F dry bulb / 67° F wet bulb (50% R.H.)
temperature and rated airflow across the evaporator
during cooling cycle.
TABLE 6
REFRIGERANT CHARGE
l
e
d
o
M
d
e
t
a
R
w
o
l
f
r
i
A
D
O
5
9
e
r
u
t
a
r
e
p
m
e
T
D
O
2
8
e
r
u
t
a
r
e
p
m
e
T
1
8
3
A
W
0
0
1
1
8
4
-
0
5
6
4
-
8
4
3
2
4
A
W
0
0
4
1
4
5
-
2
5
6
6
-
4
6
4
8
4
A
W
0
5
5
1
6
5
-
4
5
7
6
-
5
6
1
9
4
A
W
0
5
2
1
6
4
-
8
4
5
4
-
7
4
2
0
6
A
W
0
0
7
1
5
5
-
3
5
2
6
-
0
6
TABLE 7
INDOOR BLOWER PERFORMANCE
CFM
@
230V
.
P
.
S
.
E
H
n
I
2
0
4
8
4
A
W
,
3
2
4
A
W
2
0
6
A
W
V
0
3
2
w
o
L
V
0
3
2
h
g
i
H
V
0
3
2
w
o
L
V
0
3
2
h
g
i
H
li
o
C
y
r
D
t
e
W
li
o
C
li
o
C
y
r
D
t
e
W
li
o
C
li
o
C
y
r
D
t
e
W
li
o
C
li
o
C
y
r
D
t
e
W
li
o
C
0
.
1
.
2
.
3
.
4
.
5
.
0
5
6
1
0
5
5
1
0
5
4
1
0
5
3
1
0
0
3
1
-
-
-
0
0
6
1
0
0
5
1
0
0
4
1
0
0
3
1
5
7
1
1
-
-
-
5
8
8
1
0
7
7
1
5
3
6
1
0
0
5
1
0
7
3
1
0
5
2
1
0
0
8
1
5
6
6
1
0
4
5
1
0
0
4
1
5
8
2
1
0
5
1
1
0
0
6
1
5
2
5
1
-
-
-
-
-
-
-
-
-
-
-
-
0
5
4
1
5
7
3
1
-
-
-
-
-
-
-
-
-
-
-
-
0
0
2
2
0
0
1
2
0
0
0
2
5
7
8
1
5
7
7
1
0
5
6
1
0
0
0
2
0
0
9
1
0
0
8
1
0
0
7
1
0
0
6
1
5
7
4
1
FAN BLADE SETTING DIMENSIONS
Shown in Figure 10 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
dimensions below be checked and blade adjusted in or
out on the motor shaft accordingly.