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Robertshaw 780-910 HSI Module
Robertshaw 780-910 HSI Module
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Robertshaw 780-910 HSI Module
Our Price: $115.22

Availability:: Usually Ships in 1 to 2 Business Days
Product Code: 780-910


Robertshaw 780-910 HSI Module

The 780-910 Universal Hot Surface Ignition Module is designed for use on gas fired systems. It is equipped with a self diagnostic green LED for quick troubleshooting. The LED indicates if the system is in normal operation, has gone into lockout, has a weak flame signal, or has an internal error (a defective module). The 780-910 provides 100% lockout and complete gas shut off if main burner does not light after the selected trial for ignition sequence has been completed. An ignition sequence is initiated by a call for heat by a room thermostat or a switch which provides power to the Ignition Control Unit (ICU). After a 34 second pre-purge cycle the ICU will start the selected ignitor warm up time (17 or 34 seconds.) At the end of the ignitor warm up time, the gas valve is opened and will supply gas to the main burner for 4 or 7 seconds.It comes equipped with field selectable options; flame sense (local or remote), ignition trial times and ignitor warm up times. The flame sense option is determined by a factory installed black jumper wire. For local sense (sensing through the ignitor) the jumper must be connected to the "sense" terminal.

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