Installation Instructions - Prime PHC42W06 Installation & Operating Instructions Manual

Example:
• 1 12 means you need one PHC84W12
• 2 6 means you need two PHC42W06
• 1 12 + 1 6 means you need one PHC84W12 + one PHC42W06
• This design guide is based on the generally accepted maintenance temperature of 40°F/4°C for freeze protection.
• This design guide is also based on ½in fiberglass insulation. Closed-cell flexible foam insulation may also be used as long as it is
rated to withstand temperatures up to 175°F/79.4°C.
• The pipe heating cables should be installed beginning with the end opposite the plug. When using 2 pipe heating cables, place on
opposite sides of the pipe and do not allow them to cross over or touch. These pipe heating cables do not join together and cannot
be changed.
Table 2
Catalog No.
6 PHC42W06
12 PHC84W12
18 PHC126W18
24 PHC168W24
30 PHC210W30

Installation Instructions

Pre-Installation Check
• For Commercial Applications, we recommend performing a megohmmeter test with a 500 Vdc megohmmeter to find the electrical
insulation resistance. Perform the test between the heating cable bus wires and the grounding path (heating cable metallic braid).
Minimum resistance should be 20 megohms. Readings below 20 megohms may mean the electrical insulation has been damaged.
Replace the heating cable if readings are below 20 megohms. Once installation is completed, perform this test again to ensure no
damage was sustained during installation.
• Double check the circuit intended to be used for the heating cable. Make sure the voltage ratings and amperage ratings are high
enough to support the heating cable selected.
• Walk the pipe system and plan the routing of the heating cable on the pipe. Remove any burrs, rough surfaces, or sharp edges at
the same time. Remove dirt, rust and scale with a wire brush or file. Remove oil and grease film with a suitable solvent leaving
nothing flammable behind.
Laying out the Heating Cable
Standard lengths: to protect a pipe with
standard length of cable, attach as shown
in Fig. 1.
Apply the cable straight along the bottom
of horizontal pipe or the "weather side"
of vertical pipe.
Cable Length (Feet)
6
12
8
24
30
Fig. 1
Power Output (Watts)
42
84
126
168
210
Amperage (at 120V)
0.35
0.70
1.05
1.40
1.75
Not to scale
5