ISSUE DATE 10-09-03 REV. DATE 12/17 REV. LEVEL: 17 ECO 1-7383 OIPM P/N 8329
WIRING FOR UNITS WITH (3) LAMPS
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.
SINGLE PHASE, SINGLE STAGE WIRING
Connect all three wires from one end of heater to L1
and the remaining three wires from the other end to
L2; refer to diagram below.
This fixture is equipped with 6 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. Refer to Figure A on page 9.
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.
THREE PHASE, SINGLE STAGE WIRING
Balance each leg throughout the three elements in
each heater, as shown below.
12
Control Panel
TYPICAL SINGLE PHASE WIRING
Wire markers on lead wires indicate lamp number
LAMP NO. 1
LAMP NO. 2
LAMP NO. 3
L1
L2
LAMP NO. 1
LAMP NO. 2
LAMP NO. 3
L3
L2
L1
Control Panel
TYPICAL THREE PHASE WIRING
Wire markers on lead wires indicate lamp number
