Troubleshooting – Bard WA721 User Manual
Page 19
Manual 2100-425
Page 17
TROUBLESHOOTING
FIGURE 10
FAN BLADE SETTING
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 inches from compressor) as shown in
Table 8:
The suction line temperatures in Table 8 are based
upon 80ºF dry bulb / 67ºF wet bulb (50 percent R.H.)
temperature and rated airflow across the evaporator
during cooling cycle.
FAN BLADE SETTING DIMENSIONS
Shown in the drawing below 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.
REMOVAL OF FAN SHROUD
1. Disconnect all power to unit.
2. Remove the screws holding both grills – one on
each side of unit – and remove grills.
3. Remove screws holding fan shroud to condenser
and bottom – (9) screws.
4. Unwire condenser fan motor.
5. Slide complete motor, fan blade, and shroud
assembly out the left side of the unit.
TABLE 7
FAN BLADE DIMENSIONS
l
e
d
o
M
A
n
o
i
s
n
e
m
i
D
1
1
6
A
W
0
7
A
W
5
2
.
1
1
2
7
A
W
5
7
.
TABLE 8
SUCTION LINE TEMPERATURES
s
l
e
d
o
M
d
e
t
a
R
w
o
l
f
r
i
A
F
°
5
9
.
p
m
e
T
D
O
F
°
2
8
.
p
m
e
T
D
O
1
1
6
A
W
0
5
3
,
1
4
5
-
2
5
0
6
-
7
5
0
7
A
W
0
0
8
,
1
0
6
-
8
5
8
5
-
6
5
1
2
7
A
W
0
0
8
,
1
1
6
-
9
5
9
5
-
7
5
Q
Rated CFM and ESP on high speed tap.
TABLE 9
CFM and ESP
d
e
t
a
R
l
e
d
o
M
1
d
e
t
a
R
M
F
C
1
d
e
t
a
R
P
S
E
d
e
d
n
e
m
m
o
c
e
R
w
o
l
F
r
i
A
e
g
n
a
R
1
1
6
A
W
0
5
3
,
1
0
2
.
0
0
1
,
1
-
-
5
7
4
,
1
0
7
A
W
0
0
8
,
1
0
2
.
5
7
3
,
1
-
-
0
0
0
,
2
1
2
7
A
W
0
0
8
,
1
0
2
.
5
7
4
,
1
-
-
0
0
0
,
2
TABLE 10
INDOOR BLOWER PERFORMANCE – CFM AT 230 VOLTS
j
This model has 3-speed motor, but low speed cannot be used.
.
P
.
S
.
E
H
n
I
2
O
1
1
6
A
W
0
7
A
W
1
2
7
A
W
d
e
e
p
S
h
g
i
H
d
e
e
p
S
m
u
i
d
e
M
1
d
e
e
p
S
h
g
i
H
d
e
e
p
S
w
o
L
li
o
C
y
r
D
li
o
C
t
e
W
li
o
C
y
r
D
li
o
C
t
e
W
li
o
C
y
r
D
li
o
C
t
e
W
li
o
C
y
r
D
li
o
C
t
e
W
0
.
0
0
7
,
1
5
7
5
,
1
5
2
4
,
1
5
7
3
,
1
0
0
2
,
2
0
0
0
,
2
0
0
6
,
1
0
5
4
,
1
1
.
0
5
5
,
1
5
7
4
,
1
5
7
3
,
1
0
5
2
,
1
0
0
1
,
2
0
0
9
,
1
5
2
5
,
1
5
7
3
,
1
2
.
0
0
4
,
1
0
5
3
,
1
0
5
2
,
1
0
0
1
,
1
0
0
0
,
2
0
0
8
,
1
-
-
-
-
-
-
3
.
0
5
2
,
1
0
5
1
,
1
0
0
1
,
1
-
-
-
5
7
8
,
1
0
0
7
,
1
-
-
-
-
-
-
4
.
-
-
-
-
-
-
-
-
-
-
-
-
5
7
7
,
1
0
0
6
,
1
-
-
-
-
-
-
5
.
-
-
-
-
-
-
-
-
-
-
-
-
0
5
6
,
1
5
7
4
,
1
-
-
-
-
-
-