Product Manual

ISSUE DATE 10-09-03 REV. DATE 2-26-09 REV. LEVEL: 14 ECO 1-6073 OIPM P/N 8329 PG 10 OF 17
This fixture is equipped with 4 high-temperature
silicone lead wires to accommodate either single
phase or three phase electrical service. They are
shipped wire-tied together. Remove the wire-
tie
before making electrical connections.
Wiring connections should always be made through
one of the knockouts in the top wire channel. Consult
the factory, or a qualified electrician for details on
staging.
Supply wires must be copper and rated for at least 90º
C. Wire connectors should also have a minimum
rating of 90º C.
For use in TOTALLY EXPOSED OUTDOOR
APPLICATIONS refer to page 9.
WIRING FOR UNITS WITH (2) LAMPS
LAMP 2
LAMP 1
L1
L2
Connect both wires from one end of heater to L1 and the
remaining wires from the other end to L2 in the control
panel.
SINGLE-STAGE WIRING
Two-stage operation allows one or both lamps in the
heater(s) to be energized, depending on the signal from
an appropriate two-stage control device (e.g. two-
stage
thermostat). This will allow the heater(s) to operate at
50% on, 100% on, or 100% off; instead of limiting the
operation to 100% on or 100% off.
Two circuits are required for two-stage wiring.
For two-
stage operation connect L1 & L2 of circuit #1 to lamp
#1 and connect L1 & L2 of circuit #2 to lamp #2 as illustrated
below.
TWO-STAGE WIRING
LAMP NO. 2
LAMP NO. 1
L1
L2
L1
L2
Circuit #1
Circuit #2
ELECTRICAL SHOCK HAZARD
• Serious injury or death may
occur.
• Disconnect from electrical
supply before installing or
servicing this heater.
• This appliance must be
connected to a properly
bonded (grounded) electrical
source.
Common component layout for controlling
Fostoria Mul-T-Mount heaters
(2 Stage wiring shown)
This is NOT a wiring schematic