MEP-PCA-HW Electrical Connection Kit
Installation, Operation & Maintenance Instructions
Tools Required
- Crimping Tool
- Flat Head Screwdriver
- Wire Cutter
- Diagonal Cutting Pliers
- Utility Knife or Razor Blade
- Measuring Tape
Kit Description
The electrical connection kit is used for making electrical connections for the CRG Families of self-regulating parallel heating cables. The kit contains components needed to make one power input connection.
Kit Contents
| QTY | DESCRIPTION |
|---|---|
| 1 | Connector Body |
| 1 | Connector Cap |
| 1 | Connector Gland Washer |
| 1 | Grommet |
| 1 | Strain Relief Grip |
| 1 | Standoff Bracket |
| 2 | Rolls of Self-Fusing Tape |
| 2 | 16-14AWG Insulated Butt Connectors |
| 2 | 14AWG Cold Lead Wires |
| 1 | Roll of Fiberglass Tape |
| 1 | Pipe Strap (for 2" to 6" O.D. pipes) |
| 1 | Ring Tongue Terminal |
| 1 | Instruction Sheet |
Additional Items Required But Not Supplied
- Wire Connectors (for power supply to 14 AWG cold lead connections)
- Weather Tight Junction Box (3/4” NPT Hubs)* Sealing Fitting (Division 1)*
- Pipe Strap (for pipe sizes other than 2" to 6" O.D.)
- Additional Fiberglass Tape
General Installation Precautions
- Ground metal structures used for support or on which the cable is installed in accordance with NEC or CES Code part 1, Section 10.
- After installation of thermal insulation is complete, the electrical resistance of the entire branch circuit should not be less than 10 Mohms.
- Install cable at -30° C or above.
- Do not install heater closer than 13mm to any exposed combustible surface unless the cable has a metal shield or sheath and is provided with a positive temperature control which will limit the surface temperature to a value not exceeding 72° C.
- Minimum bending radius for the heater is 6mm.
Input Power Connection
A. Connecting Heater to Cold Leads
Step 1-4
Insert the heater through the connector cap, gland washer, and grommet. Pull about 250 mm (10") of heater through the grommet.
Diagram Description: Illustrates the heater cable components being threaded through the connector cap, gland washer, and grommet.
Score and remove 20 cm (8") of the outer jacket to expose the braid.
Unravel 20 cm (8") of braid and twist it into a pigtail.
Cut off 13 cm (5") of the exposed heater. This should leave 8 cm (3") of non-braided heater.
Step 5
Remove 5 cm (2") of the insulation (inner jacket) from the end of the heater, exposing the black core. Cut out a strip of core material about 3 mm (1/8") wide by 5 cm (2") long from the center of the heater. Remove 8 mm (5/16") of core material from each conductor, being careful not to cut the conductor strands.
Diagram Description: Shows a cross-section of the heater cable, detailing the outer jacket, braid, core material, and conductor insulation. It indicates specific lengths for stripping insulation and removing core material from the conductors.
Step 6
Strip 5/16" of insulation from each cold lead wire and connect a cold lead wire to each of the heater conductors using the insulated butt connectors. Wrap each connection and heater conductor with the silicone self-fusing tape, making sure to completely cover all exposed black core material and to overlap the heater insulation. Wrap over the self-fusing tape with fiberglass tape.
Diagram Description: Depicts the process of stripping insulation from cold lead wires, connecting them to heater conductors with butt connectors, and then wrapping the connections with self-fusing tape followed by fiberglass tape.
Step 7 (Implied from Diagram 4)
Attach the rounded portion of the strain relief grip to the connector cap so that the heater is aligned with the flat surface of the grip. Attach the grip to the heater.
Diagram Description: Shows the strain relief grip being attached to the connector cap and the heater cable.
B. Connecting Heater to Electrical Power
Step 1
Slide the grommet up to the outer jacket cutback.
Step 2
Insert the connector body through the standoff bracket and thread a junction box onto the connector body (customer supplied).
Diagram Description: Illustrates the connector body being passed through the standoff bracket, with a junction box being attached. It also shows the standoff bracket secured to a pipe using a pipe strap.
Step 3
Guide the cold leads, braid, and heater through the connector body into the box. Insert the grommet in the connector body and tighten the connector cap. This should position the heating portion of the heater in the connector and the heater to cold lead connections about 2" out of the connector so that the heating portion will not enter the connection box.
Step 4 (Implied from Diagram 4)
Attach the standoff bracket to the pipe using the pipe strap.
Step 5
Connect the cold lead wires to power supply wires using approved wire connectors. Attach the braid pigtail to ground using the ring tongue terminal provided. Install the box cover.
