Install Manual

Installation
Automatic Transfer Switch Owner’s Manual 13
Figure 3-3. Typical SACM Connections
Smart A/C Module (SACM)
Up to four air conditioner loads can be managed by the
SACM. The SACM manages the loads by “shedding” the
connected loads in the event of a drop in generator
frequency (overload). Loads to be “shed” are in 4 priority
levels on the module.
See Figure 2-2. Priorities A/C 1-4 (A) have connections
for an air conditioner. To control an air conditioner, no
additional equipment is required. Internal normally closed
relays interrupt the 24 VAC thermostat control signal to
disable the air conditioner load.
Four LEDs, located on the SACM (B), illuminate when a
load is connected and powered.
See Figure 2-2. The SACM has a test button (C) used to
simulate an overload condition. This button operates
even when the transfer signal is inactive. The Generator
Control Wiring is connected to terminals (D).
A
Thermostat 1
B
Air Conditioner 1
C
Thermostat 2
D
Air Conditioner 2
E
Thermostat 3
F
Air Conditioner 3
G
Thermostat 4
H
Air Conditioner 4
T1 (fused)
Battery Charge
N1 (fused)
Utility Sense
N2 (fused)
Utility Sense
0 DC
Ground
194
+ 12 VDC
23
Transfer Control
J
240 VAC, 6.3A
Fuses
A
B
G
H
C
D
E
F
T1
1
1
1
1
2
2
2
2
T1N1N2
0 DC GROUND
194 +12 VDC
N1
N2
T1
23 TRANSFER
®
®
J
T1
N2
0
194
23
N1
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