Bard WA302 用户手册
Manual
2100-404D
Page
17 of 19
TROUBLESHOOTING
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.
80ºF dry bulb/67ºF wet bulb (50 percent R.H.)
temperature and rated airflow across the evaporator
during cooling cycle.
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.
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.
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.
"A"
AIRFLOW
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
2
0
3
A
W
0
0
0
,
1
9
5
–
6
5
6
6
–
4
6
2
7
3
A
W
0
0
1
,
1
9
5
–
7
5
4
6
–
2
6
TABLE 9
INDOOR BLOWER PERFORMANCE
CFM AT 230 VOLTS
.
P
.
S
.
E
H
n
I
2
O
2
7
3
A
W
,
2
0
3
A
W
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
0
.
5
9
3
,
1
5
1
3
,
1
0
5
9
5
3
9
1
.
0
4
3
,
1
0
7
2
,
1
0
3
9
5
1
9
2
.
5
8
2
,
1
0
9
1
,
1
0
1
9
5
8
8
3
.
5
0
2
,
1
0
0
1
,
1
5
5
8
0
3
8
4
.
0
1
1
,
1
0
0
0
,
1
0
0
8
5
5
7
5
.
5
0
0
,
1
0
7
8
-
-
-
-
-
-
TABLE 11
MAXIMUM ESP OF OPERATION
ELECTRIC HEAT ONLY
l
e
d
o
M
t
e
l
t
u
O
t
n
o
r
F
t
e
l
t
u
O
p
o
T
d
e
e
p
S
w
o
L
d
e
e
p
S
h
g
i
H
d
e
e
p
S
w
o
L
d
e
e
p
S
h
g
i
H
d
e
e
p
S
W
K
Z
0
A
5
0
A
8
0
A
0
1
A
5
1
A
0
5
.
0
5
.
0
5
.
5
4
.
5
3
.
0
5
.
0
5
.
0
5
.
0
5
.
0
4
.
0
5
.
5
4
.
-
-
-
5
3
.
-
-
-
0
5
.
0
5
.
-
-
-
0
5
.
-
-
-
Z
0
B
6
0
B
9
0
B
5
1
B
0
5
.
0
4
.
0
5
.
0
3
.
0
5
.
0
5
.
0
5
.
5
4
.
0
5
.
-
-
-
0
4
.
-
-
-
0
5
.
-
-
-
5
4
.
-
-
-
Z
0
C
6
0
C
9
0
C
5
1
C
0
5
.
0
5
.
0
4
.
5
3
.
0
5
.
0
5
.
0
5
.
5
4
.
0
5
.
-
-
-
0
4
.
-
-
-
0
5
.
-
-
-
5
4
.
-
-
-
TABLE 10
RATED CFM AND ESP
1
Rated CFM and ESP on high speed tap
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
e
g
n
a
R
w
o
l
f
r
i
A
2
0
3
A
W
0
0
0
,
1
0
4
.
0
0
3
,
1
–
0
3
9
1
7
3
A
W
0
0
1
,
1
0
3
.
0
5
3
,
1
–
0
3
9
MIS-1724
FIGURE 9
FAN BLADE SETTING
FAN BLADE SETTING DIMENSIONS
Shown in the drawing below are the correct fan blade
setting dimensions for proper air delivery across the
outdoor coil.
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.
fan and/or motor area will require that the dimensions
below be checked and blade adjusted in or out on the
motor shaft accordingly.
TABLE 7
FAN BLADE DIMENSION
l
e
d
o
M
A
n
o
i
s
n
e
m
i
D
2
0
3
A
W
2
7
3
A
W
5
2
.
1