Section 7
120
Checking high air flow pressure switch • Terminal 2 is neutral • Terminal 10A is hot when switch is proven above .3”w.c.
vac
SW-1
vdc
ohm
OL's
ST-1
L1
460/230/208 3ph 3 wire supply w/ transformer
MT- 1
L2
L3
*FU-2
*FU-2
ST1-2
no
no
53
54
AMU Starter Aux. Contact
*TR-1
FU-3
1
R 1
2
120VAC
SW-5
SUM WIN OFF
3
R 3
SW-2
12 12 R
11 11 R
SW-6
ST1-1
P-1A
P-1
10A
no
no
10
4
DM-1
H N
*LTS-1
OL's
ST-1
c
no
95
96
5
6
7
7 8
TL-1
*T-1
P-3
*P-2
14A
13
14
15
6
2
1
A
S2
3
TR-2
19
S1
4
V-1
FS-1
5
V-2
Standard AMU 120 VAC control circuit
*V-3
18
V-4
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