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nVent.com/RAYCHEM RAYCHEM-OM-EU2032-NGCUIT3EX-EN-2203
Setpoint + 2.22°C 0%
Setpoint + 1.11°C 50%
Setpoint 100%
On
On
Set Point + 2.22°C 0 1000 Set Point + 1.06°C 525 475
Set Point + 2.17°C 25 975 Set Point + 1.00°C 550 450
Set Point + 2.11°C 50 950 Set Point + 0.94°C 575 425
Set Point + 2.06°C 75 925 Set Point + 0.89°C 600 400
Set Point + 2.00°C 100 900 Set Point + 0.83°C 625 375
Set Point + 1.94°C 125 875 Set Point + 0.78°C 650 350
Set Point + 1.89°C 150 850 Set Point + 0.72°C 675 325
Set Point + 1.83°C 175 825 Set Point + 0.67°C 700 300
Set Point + 1.78°C 200 800 Set Point + 0.61°C 725 275
Set Point + 1.72°C 225 775 Set Point + 0.56°C 750 250
Set Point + 1.67°C 250 750 Set Point + 0.50°C 775 225
Set Point + 1.61°C 275 725 Set Point + 0.44°C 800 200
Set Point + 1.56°C 300 700 Set Point + 0.39°C 825 175
Set Point + 1.50°C 325 675 Set Point + 0.33°C 850 150
Set Point + 1.44°C 350 650 Set Point + 0.28°C 875 125
Set Point + 1.39°C 375 625 Set Point + 0.22°C 900 100
Set Point + 1.33°C 400 600 Set Point + 0.17°C 925 75
Set Point + 1.28°C 425 575 Set Point + 0.11°C 950 50
Set Point + 1.22°C 450 550 Set Point + 0.06°C 975 25
Set Point + 1.17°C 475 525 Set Point + 0.00°C 1000 0
Set Point + 1.11°C 500 500
The power to the heat tracing is proportioned based upon on the ambient temperature. If the ambient temperature is at or below
the “minimum design ambient –16.1°C (3°F)” the heaters will be on 100%. If the measured ambient is at or above the “maintain
temperature –19.4°C (–3°F)” the heaters will be on 0%.
For any measured ambient between “minimum design ambient” and “maintain temperature,” the heaters will be on a percentage of
the time equal to (maintain temperature – measured ambient) / (maintain temperature – minimum design temperature).
Ambient temperature
Duty cycle
0% 100%
Minimum
ambient
temperature
Pipe
maintain
temperature
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