Supervisory Control Wiring - Briggs & Stratton Dual 200 Amp Guide D'installation

13. Connect conductor from transfer switch neutral terminal (H1
or H2) to generator NEUTRAL terminal (L). Observe generator
control panel labeling for terminal identification.
14. Connect conductor from transfer switch "GND" terminal
(U1 or U2) to generator control panel "GROUND" terminal
(K).
Assure generator equipment grounding conductor (G) is
connected per applicable federal, state and local codes,
standards and regulations.
15. Using minimum #14 AWG conductors, connect the transfer
switch "UTILITY 240 VAC" terminals to generator's "240
VAC" terminals via two-pole connector supplied
with generator (P).
16. Using #18 AWG twisted pair conductors, no greater than
200 ft. in length, 300 volt minimum, and 75°C minimum,
connect "T/R" and "GND" terminals (B) on transfer switch
control board to the generator's control panel "TxRx" and
"TxRx GND" terminals via ten pin connector (A) supplied
with generator. Count down to the proper pin location on the
generator control board since visual alignment with its decal
can be misleading:
17. Tighten all wire connections/fasteners to proper torque.
A
8

Supervisory Control Wiring

An air conditioner can be used with the supervisory contacts
on either terminals A-A or B-B. Terminals A-A can only be
used with supervisory control. Large loads can only be used
with contactor control on terminals B-B. Examples of each
system are described below.
For installer convenience, there are two wireways provided to
help keep supervisory load wires organized.
B
1. The terminal strip on the transfer switch control board
has four connections for customer use. There are two
sets of "Normally Closed" contacts available. They will
be activated when generator power is required. These
can be used for supervisory control of large connected
loads on generator. Loads will be allowed to operate if
there is enough generator power available.
2. Terminals "A-A" on transfer switch control board
are rated for 24VAC. Connect these contacts in
series between air conditioner thermostat and air
conditioner contactor.
To air conditioner contactor
A
A
From air conditioner thermostat (yellow?)
3. Terminals "B-B" on transfer switch control board are
rated for 1 Amp 125 VAC. When connected with an
installer supplied contactor, it can be used to control
a large load, such as an electric hot water heater.
Contacts are connected in series with the contactor
control circuit.
B
B
24 VAC
Contactor
Neutral
120 VAC
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