
ISSUE DATE 3-23-06 REV. DATE: 6-5-08 REV. NO.: 07 ECN: N/A OIPM P/N 3420318 Page
4
f
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To install the VHC-32:
1. Care ully remove controller cover and mount the
enclosure. View mounting options and hole patterns
on next page.
2. Feed all power supply and heater wires to enclosure.
3. Attach the (3) wires rom the controller to the triac
located in the upper le t hand corner o enclosure.
NOTE: The wires must be terminated on the triac as
shown per wiring diagram below or label located in
the enclosure. Failure to do so will result in
premature ailure o the controller.
4. Wire to power source and heater as shown in wiring
diagram using (4) wire nuts provided. Note that
wires marked “L1” or “L2” can be attached to either
incoming power lead. Also, the wire marked “H1”
and the red wire coming rom the heat sink can be
wired to either lead going out to the heater.
5. Attach bonding (ground) wires to green ground lead
in back o box.
6. Using the (4) screws provided, attach the cover to
the enclosure. Be careful not to damage the
controller or internal wiring when ositioning the
cover.
ELECTRICAL SHOCK HAZARD
• Serious injury or death may
occur.
• Disconnect from electrical
su ly before installing or
servicing this roduct.
• Make certain the ower
source conforms to
s ecifications on heater label.
• Always
wire from heater to bonding
(ground) wire from electrical
su ly, not to a live or “hot”
conductor.
• Use 12 AWG, 90° C rated
co er wire only. Maximum
50 ft. run.
• Follow state, local and
national electric codes (NEC).
For field wiring, refer to the Installation manual
included with your heater.
All wiring must be erformed by a licensed
electrician.
RED
ORANGE
BLUE
RED
PURPLE
CONTROLLER
ROCKER
SWITCH
208/240V
SOURCE
GND.
L1 L2
HEATER
H1
TRIAC
LOCATED ON COVER
LOCATED
ON COVER
LOCATED IN
ENCLOSURE
LOCATED IN
ENCLOSURE
BLACK
FROM CAPACITOR
The triac must be wired as
shown in the wiring diagram.
Failure to do so will result in
controller.