™
The world’s
best-selling
electric floor heating brand
™
The world’s
best-selling
electric floor heating brand
WARMUP INC.
USA: [email protected]
Tel.: 1-888-927-6333
www.warmup.com
CANADA: [email protected]
Tel.: 1-888-592-7687
www.warmup.ca
NAMSRK INSTALLATION INSTRUCTIONS
FOR PIPE FREEZE PROTECTION
INSTALLATION
Note:
1. Before insulating, check to be sure heating cable is free from mechanical or thermal damage (cuts or nicks in cable
insulation from utility knife, use of metal clamps, solder or over-heating).
2. Use Megohmmeter to test each circuit prior to, and after installing thermal insulation. See Megohmmeter test procedure
below.
3. Ensure use of proper insulation thickness and type - fire resistant fiberglass or equivalent for protection to 0 deg F, 1”
fire resistant fiberglass or equivalent for protection to -20 deg F.
4. Ensure insulation is dry. Wet insulation will not protect pipe from freeze-up.
5. Ensure all valves, spigots and piping are fully insulated up to and including joints and wall penetrations.
6. Secure heating cable cord as shown above to provide proper strain relief.
7. Plug cable into 120 Vac ground fault circuit protected outlet.
8. Check circuit breaker to verify power to the cable.
9. Proper heat output of cable may be verified by observing warm standing water in pipe within one hour of energizing the
cable.
MEGOHMMETER TESTING PROCEDURE
Use only 2500VDC megohmmeter for this test.
•
Check insulation resistance between each lead of the heating cable and the round ground lug on the power cord plug.
Perform the test by placing one lead of the megohmmeter on the round ground lug and the other on one of the rectangular
power lugs. You should read 1000 megohms minimum.
•
Perform the test again by checking the opposite rectangular power lug. Again the reading should be 1000 meohms
minimum. If you read less than 1000 megohms on either lead the cable needs to be replaced. Do not attempt to repair
the unit. Replace with new product.
•
The installer should record these megohm readings on these installation instructions and record the date of the test.
•
End user of the system must keep instructions.
•
This Megohm test should be performed at least once per season, preferably before energizing the system each fall or
winter, or immediately after any work has taken place on the piping system.
Cable at 5 and 7 o’clock positions
if straight run.
