™
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
™
The world’s
best-selling
electric floor heating brand
NAMSRK INSTALLATION INSTRUCTIONS
FOR PIPE FREEZE PROTECTION
GENERAL
GFI CIRCUIT PROTECTION
- To minimize danger from possible sustained electrical arcing due to damaged or improperly
installed heating cable, and to comply with agency certifications and the National Electric Code (Article 427) - Ground Fault
Equipment Protection must be used on each heating cable branch circuit. Arcing may not be stopped by conventional circuit
protection. Contact a qualified electrician for installation if GFI is not available.
WARNING:
ELECTRIC SHOCK AND/OR FIRE HAZARD
. If cable is damaged, remove from service. Do not attempt to repair. There are no user
serviceable parts. Replace damaged cable with new assembly.
KEEP INSTRUCTIONS FOR FUTURE REFERENCE.
IMPORTANT NOTES ON CABLE SELECTION
•
For any “non-Standard” installations please contact Warmup at (888) 927-6333 (US) or (888) 592-7687 (Canada).
•
We assume a minimum ambient temperature of 0°F and a thermal insulation of thick fiberglass wrap or equivalent.
For protection to -20°F minimum ambient use 1” thick fiberglass wrap or equivalent.
•
Add 1 foot of heating cable for every valve or spigot in the pipeline - make sure to apply this extra cable at each valve/
spigot when installing.
•
If your selected cable length is longer than your pipe length, spiral the cable evenly along the length of pipe.
•
NAMSRK has a 5W/lin ft output. Ensure all metal pipes get 5W/lin ft.
•
For 2” pipes and each 2” in diameter, double the output.
•
Por plastic pipes, consider 25% more heat required.
Code
Length in ft
Voltage
Power output on pipe at 40°F
(5°C) in W
Power output on pipe at 50°F
(10°C) in W
Power output in ice & snow at 32°F
(0°C) in W
NAMSRK-6FT
6
110-120
36
30
60
NAMSRK-12FT
12
110-120
72
60
120
NAMSRK-18FT
18
110-120
108
90
180
NAMSRK-24FT
24
110-120
144
120
240
NAMSRK-50FT
50
110-120
300
250
500
NAMSRK-75FT
75
110-120
450
375
750
NAMSRK-100FT
100
110-120
600
500
1000
SPECIFICATIONS
Service voltage
110-120V
Normal cable width (in/mm)
0.42 (10.6)
Normal cable thickness (in/mm)
0.23 (5.8)
Cable bus wire gauge (AWG)
16
Cold lead length (in/mm)
30 (762)
Min. Circuit breaker size (Amps)
15
Max. Exposure Temperature
185
°F
(85
°C
)
Electrical classification
Nonhazardous
Nominal Power Output Chart
