The technician responsible for installing the gas supply must
follow local and national codes.
21) Using the regulator manufacturer's instructions supplied with the regulator, make
external gas connections.
The technician responsible for installing the power supply
must follow local and national codes.
22) Using the wiring instructions shown in Figure 3-52
and the manufacturer's
instructions enclosed with heater, make external connections.
Figure 3-52 Electrical Pre-heater Wiring Instructions
3.26 ENC82S Optional Catalytic Heater Installation
These instructions are only applicable to the small
environmental enclosure (ENC82S).
Verify the heater and fittings are approved for the classification
rating of the area of installation.
If the optional catalytic heater is configured for the small environmental enclosure,
external gas connections, electrical pre-heater wiring, and installation of the filter
drain kit are all that are required.
3.26.1 Materials
• Teflon
®
tape
• ¼” Male pipe connection from external gas source to catalytic heater. Materials
for gas source are not provided by Totalflow. Quantities and materials to be
determined by the technician based on installation and local codes.
• DC power source wiring. Materials for external power source for electrical
preheat wiring are not provided by Totalflow. Quantities and materials to be
determined by the technician based on installation and local codes.
ELECTRICAL PREHEAT CONDUIT BOX
POWER SOURCE
POSITIVE
NEGATIVE
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