L.B. White FA-MCS - Manual (Page 7)

■
All wiring must be done by a qualified electrician in
accordance with local, state, and national electrical
codes.
Initial Preparation
■
Unlatch the control box cover, and open the control
panel.
■
Select locations on either the side or the bottom where
a wiring access holes may be drilled. Do not drill holes
at the top of the control box.
■
Install the appropriate sized water tight connectors.
■
Use customer supplied minimum 18 gauge conductor
and the appropriate wiring terminals for connecting the
Smart Box
™ to the heater’s variable gas control valve,
to the room controller contacts, and the temperature
sensors.
■
Re fe r to s e c t i o n s A t h ro u g h E fo r c o n n e c t i o n
instructions. Refer to the white flag labeling on
SmartBox
™
leads for interconnections.
Connection
A. Connecting the Electrical Power Supply to the SmartBox
™
.
Connect to hot, neutral, and ground leads as shown in
Fig.6.
FIG. 6
B. Connecting Power to the Heaters
Connect leads in SmartBox
™
to heating Zones 1 and 2.
See Fig.7.
FIG. 7
C. Wiring from SmartBox ™ to the heater’s Smart Sense ™
variable rate gas control valve
a. Connect Smart Sense™ gas control valve wiring
for Zones 1 and 2 at SmartBox ™ leads as
shown in Fig.8.
FIG. 8
b. Route the wiring from these leads through the
gas inlet hole at the heater’s case. See Fig.9.
c. Attach 1/4 in. insulated female terminals to
these wires and connect to either terminal on
the valve. See Fig. 9.
FIG. 9
7
Interconnection
ROUTE WIRING
THROUGH HOLE
CONNECT WIRING TO TERMINALS
( NOT POLARITY SENSITIVE)
WARNING
Electrical Shock Hazard
■
Disconnect the electrical supply before installiation of
the SmartBox
™
.
■
Failure to follow this warning may result in personal
injury or death.