Connecting Start Circuit Wires; Connecting Smart A/C Module (Sacm); Control Of Air Conditioner Load - Generac Power Systems RTG24SHA1 Owner's Manual

Conductor sizes must be adequate to handle the
maximum current to which they will be subjected, based
on the 75°C column of tables, charts, etc. used to size
conductors. The installation must comply fully with all
applicable codes, standards and regulations.
All power cables can enter the enclosure through the
provided knockouts. Additional knockouts into the
enclosure can be made in the field as needed.
NOTE: Cover and protect the transfer switch and
breakers while removing knockout slugs. Avoid dropping
slugs or metal chips into the enclosure.
Conduit entry shall maintain the proper wire bending
spaces required by Tables 312.6 (A) and (B) in the NEC.
Conduits should be arranged to provide separation
between the Utility and Generator supply conductors
inside the enclosure.
NOTE: If aluminum conductors are used, apply corrosion
inhibitor to conductors. After tightening terminal lugs,
carefully wipe away any excess corrosion inhibitor.
Tighten terminal lugs to the torque values as noted on the
decal located on the inside of the door. After tightening
terminal lugs, carefully wipe away any excess corrosion
inhibitor.
CAUTION
Equipment damage. Verify all conductors are
tightened to the factory specified torque value.
Failure to do so could result in damage
to the switch base.

Connecting Start Circuit Wires

Control system interconnections may consist of N1, N2,
and T1, and leads 23 and 194. The generator control
wiring is a Class 1 signaling circuit. Reference instruction
manual of specific engine generator for wiring connection
details. Recommended wire gauge sizes for this wiring
depends on the length of the wire, as recommended in
the following chart:
Maximum Wire Length
1–115 ft (1–35 m)
116–185 ft (36–56 m)
186–295 ft (57–89 m)
296–460 ft (90–140 m)
Exception: Conductors of AC and DC circuits, rated
1000 volts nominal, or less, shall be permitted to occupy
the same equipment, cable, or conduit. All conductors
shall have an insulation rating equal to at least the
maximum circuit voltage applied to any conductor within
the equipment, cable, or conduit. See NEC 300.3(C)(1).
Automatic Transfer Switch Owner's Manual
(000120)
Recommended Wire Size
No. 18 AWG
No. 16 AWG
No. 14 AWG
No. 12 AWG
Connecting Smart A/C Module
(SACM)
See Figure 3-4. The Smart A/C Module (SACM) can
control an air conditioner (24 VAC) directly.

Control of Air Conditioner Load

1. Route the thermostat cable (from the furnace/
thermostat to the outdoor air conditioner unit) to the
transfer switch.
2. Connect the wire to the terminal strip terminals (A/C
1) on the SACM as shown in
normally closed contacts which open upon load shed
conditions. Route thermostat wire away from high
voltage wires.
3. If required, connect additional air conditioners to
the terminal strip terminals (A/C 2-4).
Contact Ratings
A/C 1-4
NOTE: These instructions are for a typical air conditioner
installation. Control of certain heat pumps and 2-stage air
conditioners may require special connections or the use
of SMMs to control the loads.
Installation
Figure 3-4. These are
24 VAC, 1.0 Amp Max
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