ISSUE DATE 10-09-03 REV. DATE 12/17 REV. LEVEL: 17 ECO 1-7383 OIPM P/N 8329
WIRING FOR UNITS WITH (2) LAMPS
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.
Wires in wiring channel are identified with wire markers.
Markers indicate lamp number.
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 10.
SINGLE-STAGE WIRING
Connect both wires from
one end of heater to L1 and the remaining wires from
the other end to L2 in the control panel.
TWO-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.
Common component layout for controlling
Fostoria Mul-T-Mount heaters
(2 Stage wiring shown)
This is NOT a wiring schematic
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.
11
CIRCUIT #1
CIRCUIT #2
L1
L2
LAMP NO. 2
L1
L2
LAMP NO. 1
LAMP NO. 1
LAMP NO. 2
L1
L2
