CMH Connect
Installation Instructions
CMH-CON
Page
3
of
6
HD140401-1 Rev 2
Part No. DREX0074
5.
Cut and remove the wrapped insulation, down to the tape and close to the end of the sheath, taking care not to
damage the insulation on the bus wires. Discard the outer insulating layers and cut the heater element close to
the tape.
Note
: It is critical to ensure the heater element is cut cleanly and no strands can make contact with the sheath
when installing the boot.
6.
Place the supplied heat shrink over any exposed bus wire that might be present such as where the node was
located.
Ensure the heater element is trimmed back close to the
tape isolating the heater element from the
sheath
or bus wire. This kills the next 10” (25.4 cm) zone of heating cable under the sheath and serves as a 10”
(25.4 cm) cold lead.
7.
Slide the cable connector, washer and grommet onto the cable sheath.
8.
Position the boot over the bus wires close to the sheath. Apply silicone sealant inside the boot and around the
cable sheath, ½” (13 mm) from the end of the sheath.
Important:
after installing the boot megger the cable between the sheath and conductors to ensure the heater
element is isolated from the sheath. The insulation resistance reading should be 5 MOhm or higher
.
9.
Thread the cable connector (strain relief) into the junction box and tighten. Tighten the middle nut to engage the
strain relief onto the cable sheath. Position the washer inside and grommet inside the chamber. Tighten down the
nut compressing the grommet ensuring an environmental seal.
Note:
If the washer is not positioned properly the grommet might be difficult to compress inside the chamber.
Ensure all threads bottom out after tightening.
10.
Make the electrical connection as required.
