Heavy gage g60 construction with hinged access cover.
Electric duct heater scr control.
Scr pictured solid state relays are used to provide continuous modulation.
An electronic step controller provides electronic sequencing control of an electric duct heater up to 12 steps.
Since the scr is solid state it.
Power and control terminal boards.
These controls proportionally turn on a percentage of each power line half cycle.
Useful for electric reheat and supplemental electric duct heaters.
This gives smooth infinitely variable application of power to the heaters.
A silicon controlled rectifier scr is a solid state switching device which can provide fast infinitely variable proportional control of electric power.
This duct heater features.
Thermolec electric duct heaters are designed for use in all forced air commercial and industrial hvac systems.
Viconics r820 scr power controller has been designed for safe and reliable control of electric heat loads.
Automatic reset thermal safety switch for primary over temperature protection.
A transformer with any overcurrent protection required by ul or the nec to supply the internal control circuit of 120 volts per heater with a step controller for vernier control and 24 volts for all other heaters with scr control.
Standalone coils supplied as duct heaters are certified in compliance with ul 1996.
Electric reheat coils are an available accessory for use with price single duct and fan powered terminal units.
Scr power controllers are designed for an accurate and cost effective way to modulate electric heat.
Manual reset thermal safety switch for secondary over temperature protection.
Not only does this give maximum control of your heat process but it can extend heater life many times over other control methods.
Indeeco s attention to detail and rigorous testing give worldwide customers premium products that they receive quickly and at a fair price.
The scr control can deliver electrical power to heaters in several ways.
Phase angle fired zero voltage switched and on off control.
Capacity and stages are dependent on voltage phase and heater dimensions.
Price electric coils are factory mounted etl listed to meet electrical safety standards and comply with dual designation csa 236 ul 1995.
When interruption of power occurs all stages cycle off.
Upon restoration of power the step sequence resumes.
Their applications vary from a partial or auxiliary nature to being the major or principal heat source in a building.
