September 1,
1997
P/N 401789
5 - 15
H
U
S
S
M
A
N
N
C
O
R
P
O
R
A
T
IO
N
•
B
R
ID
G
E
T
O
N
, M
O
6
3
0
4
4
-2
4
8
3
•
P
rin
te
d
in
U
S
A
25
26
27
29
30
28
25
28
26
29
27
30
PC-5
25
28
26
29
27
30
22
23
24
19
20
21
19
22
20
23
21
24
PC-4
19
22
20
23
21
24
13
14
15
16
17
18
13
16
14
17
15
18
PC-3
13
16
14
17
15
18
7
8
9
10
11
12
7
10
8
11
9
12
7
10
8
11
9
12
PC-2
1
2
3
5
4
6
1
4
2
5
3
6
1
4
2
5
3
6
PC-1
1
2
3
Line Voltage Pressure Control and Gravity Dampers for All Fans
1
Terminal Block - Heavy Duty
Fuse Holder
Terminal Block - Medium Duty
Pressure Control
Motor (Inherently Protected)
Replacement Parts
Figure A-10
Control B Line Voltage Pressure Control
and Gravity Dampers for All Fans
Control Settings
Number of Fans
Single Double
Pressure Switch Cut-In Settings – psig
PC-1
222
185
230
222
185
230
222
185
230
222
185
230
222
185
230
PC-2
–
–
–
264
217
273
242
201
250
260
193
268
235
191
244
PC-3
–
–
–
–
–
–
64
217
240
249
205
258
242
199
250
PC-4
–
–
–
–
–
–
–
–
–
236
217
244
225
207
233
PC-5
–
–
–
–
–
–
–
–
–
–
–
–
260
217
270
1
2
3
4
5
Refrigerant
R-404A
R-22
R-507
R-404A
R-22
R-507
R-404A
R-22
R-507
R-404A
R-22
R-507
R-404A
R-22
R-507
N/A
2x4
2x3
2x4
2x5
Individual Motor FLA
HP
3/4
1
208/3/60
3.5
4.4
230/3/60
3.2
4.0
460/3/60
1.6
2.0
Total FLA Nunber of Motors = Applicable Motor FLA
Set Cut-Out 25 psig Below Cut-In
Header
End
Fuses and
Fuse Blocks
Supplied When
Required
Note:
Solid lines represent wiring
for 2, 3, 4 and 5 Fan Units
Dashed lines represent additional
wiring for 4, 6, 8 and 10 Fan Units
Figure 5-11 —Control B
Line Voltage Pressure Control and
Gravity Dampers for All Fans
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