Issue Date: 08/09/19 Rev. Date:
Rev. Level: - ECO 1-7553
OIPM P/N: 8213 Page 8 of 9
ELECTRICAL SHOCK
HAZARD
•
Serious injury or death may
occur.
•
Disconnect from electrical
supply before installing or
servicing any heater.
•
This appliance must be
connected to a properly
*bonded (grounded electrical
source.
•
Read and follow all safety
information in box below.
WIRING INSTRUCTIONS
JUNCTION BOX and CONDUIT
Required conduit size: ½”
All conduit, fittings and junction boxes are supplied by
the customer.
Conduit connections can be made at either of
two locations.
The end of the heater or the back of
heater. A water tight hole plug is provided for sealing
the unused hole.
Water tight hole plug installation: The provided hole
plug is for water tight applications and can be difficult
to install because of the tight fit. Start the plug into the
hole being sealed. Using a blunt rounded object (ie,
screwdriver handle) firmly press the center of the hole
plug inward untill the plug snaps into place.
TOTALLY EXPOSED OUTDOOR APPLICATIONS
For totally exposed outdoor applications (not ceiling
protected) all conduit, fittings and junction boxes must
be NEMA Type 4 or equal. The provided water tight
hole plug MUST be used to seal unused hole. (See
above for proper plug installation).
INTERNAL WIRING DIAGRAM
OCH2 heaters are equipped with hi-temperature
silicone lead wires and one (1) bonding* (ground)
lead wire. Supply wires must be copper and rated
for at least 90ºC. Also supplied in the hardware
pack are High Temp
Fiberglass Sleeving that
MUST
be installed on your
supply wiring and extend from the point of entry into
the heater junction box to the wire connection.
1.
Terminate field bonding wire to the bonding
(ground) wire of the heater with wire nuts (customer
supplied).
2.
Slide Fiberglass Sleeving (provided in hardware
pack) over supply wiring covering the entire wire to
the entry point into the heater junction box (conduit
connector). Terminate L1 and L2(N) field wires to
the power wires of the heater with approved wire
nuts (customer supplied)
(See Figure 6 Page 7)
(See Wiring Diagrams Page 7)
*Bonding is the term that describes the completion of
the electrical circuit back to its source, which allows a
breaker or fuse to clear if a short occurs in the line.
►
Use proper conduit fittings to prevent
wires from touching the housing’s metal
edges.
►
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 open the safety switch and lock it
open.
►
All wiring must be performed by a licensed
electrician.
►
Never connect the green or green-yellow
wire to a live or “hot” conductor.
