Instruction Manual

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RAYCHEM-IM-H59486-FrostGuard120V-EN-2106
nVent.com/RAYCHEM
North America
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Heating cable testing and maintenance
Make sure that gutter and downspouts are free of leaves and other
debris prior to the winter season.
Using a 2500-Vdc megohmmeter (2500 Vdc minimum), unplug the
FrostGuard and test the unit by checking the insulation resistance
between the flat blade and the ground pin in the plug. Minimum
reading should be 1000 megohms regardless of FrostGuard length.
Record the original values for each circuit. Take additional readings
during regularly scheduled maintenance and compare to the original
value. If the readings fall below 1000 megohms, inspect heating
cables and insulation for signs of damage.
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. Remove it at
once and replace with a new length.
Product specifications
FG1-6P FG1-12P FG1-18P FG1-24P FG1-36P FG1-50P FG1-75P FG1-100P
Cable length (ft/m) 6 (1.8) 12 (3.7) 18 (5.5) 24 (7.3) 36 (11) 50 (15) 75 (23) 100 (30)
Min. power output at 40°F (4°C) on pipe (watts) 36 72 108 144 216 300 450 600
Nominal power output in ice and snow (watts) 48 96 144 192 288 400 600 800
General specifications for all FG1 products
Maximum cable width (inch/mm) 0.45 (11.4)
Maximum cable thickness (inch/mm) 0.24 (6.1)
Heating cable bus wire gauge (AWG) 16
Voltage rating (Vac) 110–120
Plug rating (amps) 15
Circuit breaker sizing minimum (amps) 15 A max.
Cold lead length (ft/m) 6 (1.83)
Maximum exposure temperature 150°F (65°C)
Minimum installation temperature 5°F (–15°C)
Minimum bend radius (inch/mm) 5/8 (16)
Electrical classification Nonhazardous areas only
Exposure to chemicals None
PN P000002072