Thermon RGS-CFK User Manual

RGS

TM

-CFK

INSTALLATION INSTRUCTIONS

RGS Self-Regulating Heating Cables

Power Connection and End Termination Kit

RGSTM-CFK Power Connection and End Termination Kit

Tools Required for Installation

Scissors, crimper/cutter, flat-blade screw­driver, and utility knife

Step 2: Cut overjacket back a distance of
5" (120 mm).

Kit Contents

User supplied junction box must be rated
Type 4X (water-tight) and approved for use
in ordinary locations.

Step 3: Separate braid strands at
overjacket and pull cable back through
opening in braid.

Power Connection

Step 1: Slide the junction box fitting cap,

strain relief disk, grommet, and then gland
fitting body onto the power end of cable.

Step 4: Cut insulating jacket of cable back

3.5" (90 mm). Wind braid into a pigtail.

Step 5: Skive outer matrix material from
conductors with a utility knife.

Step 6: Peel ex­posed wires back
from center ma­trix and cut cen­ter matrix away,
leaving bare conductors. Twist end of bus
wires before inserting into boot to avoid
contact with ground wire.

Step 7: Squeeze
RTV into the sili­cone rubber
boot and slide
over cable end.
Verify bus wires do not contact ground
wire.

INSTALLATION INSTRUCTIONS

Step 8: Tighten the gland fitting to the

cable such that the leading edge of the
fitting is 1" (25 mm) back from the braid
pigtail. Be careful to leave enough cable
to easily reach the junction box without
straining the cable.

Step 11: Secure the water-tight cover to
the junction box. Before the system is
energized, make sure it is connected to a
ground-fault-circuit-interrupting (GFCI or
ELCI) type of outlet or circuit breaker.

Step 9: Mount NEMA 4X junction box (not
supplied) to support structure. The junc­tion box should have one opening for in­coming power and a 1" (25 mm) opening
for the heating cable. For roof-and-gutter
installations, mount box underneath roof
eave if possible.

Install the completed cable connection
and gland fitting into the 1" (25 mm) open­ing. Tighten down grounding lock ring.
The cable should come up to the junction
box from underneath, or should have drip­loop of cable provided.

Step 12: The cable installation instructions
are provided separately.

Step 10: The incoming power cable
should also be provided with a drip-loop
before it enters the enclosure. Connect
the power conductors to the cable leads.
Connect the incoming supply ground wire
to the cable braid and to the green ground
wire. Crimp the ring terminal to the other
end of the green ground wire and then
connect it to the grounding screw on the
lock-ring.

End Termination

Step 13: Cut back overjacket 0.5" (12

mm).

Step 16: Slide the end cap on the end of
the cable until fully seated.

Step 14: Trim ALL of the braid strands
back to the overjacket with scissors

Step 17: Put a small amount of RTV into
the opening of the larger over-cap.

Step 15: Fill the smaller end cap with RTV.

Step 18: Slide

the over-cap
over the end cap
until fully seated.

Form PN 50204-1204 © Thermon Manufacturing Co. Printed in U.S.A.