Manual 2100-408C
Page
22
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 the
Table 6.
The suction line temperatures in Table 6 are based upon
80ºF dry bulb / 67 degrees F 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 grilles – one on
each side of unit – and remove grilles.
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.
"A"
AIRFLOW
MIS-1724
TABLE 7
SUCTION LINE TEMPERATURES
l
e
d
o
M
d
e
t
a
R
w
o
l
f
r
i
A
D
O
F
°
5
9
e
r
u
t
a
r
e
p
m
e
T
D
O
F
°
2
8
e
r
u
t
a
r
e
p
m
e
T
D
1
6
2
H
S
D
1
1
3
H
S
0
0
8
0
0
8
9
6
-
7
6
8
6
-
6
6
6
6
-
4
6
6
6
-
4
6
TABLE 8
INDOOR BLOWER PERFORMANCE
CFM @ 230V
.
P
.
S
.
E
H
n
I
2
O
D
1
1
3
H
S
,
D
1
6
2
H
S
d
e
e
p
S
w
o
L
d
e
e
p
S
h
g
i
H
y
r
D
li
o
C
t
e
W
li
o
C
y
r
D
li
o
C
t
e
W
li
o
C
0
.
1
.
2
.
3
.
0
5
9
0
4
8
0
5
7
-
-
-
0
0
9
0
0
8
0
5
6
-
-
-
0
5
0
1
0
0
9
0
5
7
0
0
6
0
0
0
1
0
5
8
0
0
7
0
5
5
TABLE 9
RECOMMENDED OPERATING RANGES
*
Rated CFM and ESP on high speed tap.
l
e
d
o
M
d
e
t
a
R
*
M
F
C
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
D
1
6
2
H
S
D
1
1
3
H
S
0
0
8
0
0
8
0
1
.
0
1
.
0
0
9
-
0
0
6
0
0
9
-
0
0
6
NOTE: SH261D and SH311D are shipped with
the indoor blower on high speed for
ducted applications. Move to low speed
for free blow applications.
FIGURE 12
FAN BLADE SETTING
FAN BLADE SETTING DIMENSIONS
Shown in the drawing in Figure 12 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.
TABLE 6
FAN BLADE DIMENSIONS
l
e
d
o
M
A
n
o
i
s
n
e
m
i
D
D
1
6
2
H
S
D
1
1
3
H
S
5
2
.
1
