King Electric SRP self-reg, preassembled User Manual

Page 3

CHECK FOR PROPER INSTALLATION

. Before installing the thermal insulation, inspect the

heating cable to verify damage did not incur during
installation including any thermal damage or other
disturbance which may have occurred if exposed to
a excessive heat.

INSTALL THE THERMAL INSULATION

1. The heat trace system requires weatherproofed
thermal insulation installed as shown in Figure 3.
2. A minimum of at least 1/2" of preformed foam or
equivalent thermal insulation must be used on all
piping, including valves, joints, and wall
penetrations.
3. For protection to -20° F (-29° C), use 1" thick
insulation.
4. Install the insulation on the piping as soon as
possible to minimize the potential for mechanical
damage after installation.
5. Place caution labels so they are visible on the
outside of the thermal insulation.

CREATE STRAIN RELIEF AND FASTEN LABELS.

1. Secure the power cord (cold lead) with a plastic
cable tie, glass cloth tape, or duct tape as shown in
Figure 4.
2. The SRP cable kit includes caution labels to
identify the presence of electric pipe heating
system. Attach the labels on the outer surface of
the pipe insulation at suitable intervals.

STARTING THE HEATING CABLE SYSTEM.

1. Test per the “cable testing and maintenance”
section.
2. Plug the heating cable into a 120 V ground-fault
protected outlet.
3. Check the circuit breaker to verify there is power to
the cable.
4. Check standing water in the pipe after one hour, it
should feel warm.

CABLE TESTING AND MAINTENANCE
1. Using a 2500-volts DC megohmmeter, check the
resistance between both of the power prongs on the
plug and the ground prong after installing the heating
cable. Minimum reading should be 1000 megohms.
2. Record the original values for each circuit, and
compare subsequent readings taken during regular
maintenance to the original values.
3. If the readings fall below 1000 megohms, replace
the cable with a new unit. Do not attempt to repair
the cable.

Heating Cable Installation (Cont.)

Figure 3

WARNING

Fire and shock hazard. Damaged heating cable can cause
electrical shock, arcing, and fire. Do not attempt to repair
or energize damaged heating cable.

If damaged,

immediately remove it and replace with a new cable

Figure 3: Thermal Insulation

Figure 4: Strain Relief

Rev 8.19.12