Heating cable installation (continued) – King Electric SR self-reg, cut to length User Manual

Page 6

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STEP 4: INSTALL ACCESSORIES KITS

1. Install heating cable end seals, splices, tees, and
power connection prior to energizing cable.

2. Use only the SR00 power connection kit, SRK10
splice and tee kit, SRK08 GFEP power connection kit
and SRK 12 end seal kit.

STEP 5: CHECK FOR PROPER INSTALLATION

1

. 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.
2. Visually inspect all power connections, end seals,
splices and tee connections.

STEP 6: INSTALL THE THERMAL INSULATION

1. The heat trace system requires weatherproofed

thermal insulation installed as shown in Figure 32.
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. Install the insulation on the piping as soon as
possible to minimize the potential for mechanical
damage after installation.
.

Figure 2: SR Cable installation for Pipe Freeze Protection

Heating Cable Installation (continued)

STEP 7: FASTEN LABELS

1. Place caution labels so they are visible on the
outside of the thermal insulation at 10 ft intervals on
alternating sides of the pipe to indicate the presence
of the electric heating cable system. Additional labels
and fiberglass tape are available in SRK03 kit.

STEP 8: STARTING THE HEATING CABLE SYSTEM
1. Test per the “cable testing and maintenance”
section.
2. Check the circuit breaker to verify there is power to
the cable.
3. Check standing water in the pipe after one hour, it
should feel warm.

STEP 9: 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 with a
new cable or repair with the proper SRK accessory kit.

WARNING

Fire and shock hazard. Damaged heating cable can
cause electrical shock, arcing, and fire. Do not
energize a damaged heating cable. Immediately
replace the cable or repair it with the proper SRK
accessory kit.

Rev 11.04.12

www.king-electric.com

6

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