Issue Date: 7-21-03 Rev. Date: 9-15-03 Rev. Level: 03 ECN: GP-5005 OIPM P/N: 3420367
Page 5 of 7
Wiring Diagram
CH-46 and CH-57 -
Direct Wire Models
L1
L2
Grd
WIRING
FIELD HARD-WIRING CONVERSION
Some OCH models are factory-equipped with a cordset
for portability. You may decide to remove the cordset
and wire the heater into a permanent location. Follow the
steps below to complete this conversion.
1. Remove junction box cover and keep all screws
and gaskets.
2. Remove wire nuts from black and white leads of
cordset.
3. Remove ground screw that secures the ground
lead from the cordset.
4. Loosen strain relief fitting, remove cordset and
strain relief fittings from inside and outside the
box.
5. Use ½ inch conduit fittings and conduit for
permanent installation.
6. Fasten field ground wire to the ground screw and
assure tight connection.
7. Terminate L1 and L2 field wires to the power
wires of the heater with the wire nuts.
8. Replace box cover assuring that the gasket is in
place.
The gasket must be replaced to maintain
the outdoor rating of the heater.
L1, L2 and GRD from supplied cordset or
direct-wired from power supply.
Hi-temp. wires
INTERNAL WIRING DIAGRAM
OCH heaters are equipped with two 12 gauge hi-
temperature silicone lead wires and a ground
termination. For field wiring, use 12 ga. 90º C rated
wire and connect to the two lead wires in the junction
box with wire nuts. Make sure ground wire is properly
connected to the fixture’s ground terminal located in the
junction box.
Make certain the power source conforms to
specifications on the heater label.
Do not depend on a thermostat or other switch
as the sole means of disconnecting power when
installing or servicing heater. Always unplug
the cordset or open the safety switch and lock it
open.
All wiring must be performed by a licensed
electrician.
The cordsets supplied with these heaters are
equipped with provisions for proper grounding.
Always mate the cordset plug with the proper
grounded receptacle in accordance with the
National Electric Code and all governing local
codes and ordinances.
Use only copper wire to power these heaters.
Do not use an extension cord to provide power
to these heaters.
Never connect the green or green-yellow wire to
a live or “hot” conductor.
ELECTRICAL SHOCK
HAZARD
•
Serious injury or death
may occur.
•
Disconnect from electrical
supply before installing or
servicing this heater.
•
Read and follow all safety
information in box below.
