These controls communicate directly with an electronic fan timer (ST9160 Electronic Fan Timer for single stage applications

ST9162 Electronic Fan Timer for two-stage applications) in typical forced warm air furnace applications

It can directly interface with the appropriate power supplies and a system thermostat for additional appliance applications

When controlled directly by a thermostat, these controls do not provide a postpurge function, because power to the control is removed when the thermostat call for heat ends

Ignition Sequence Includes Timed Trial for Ignition

Continuous Retry Trials for Ignition to Lockout

Provides Current Status of Burner Sequence, Timing Information, Hold Information and Lockout Information, As Well as Selectable or Preemptive Messages

Application Flexibility

First-Out Annunciation and System Diagnostics Provided by 2 Row by 20 Column Vacuum Fluorescent Display (VFD)

S7800A1001 Offers Call Service (Business Card) Programmable Message Displayed When System Lockout Occurs

S7800A1001 Series 5 and Greater has Selectable Modbus Feature

Local or Remote Annunciation of Operation and Fault Information

First Out Expanded Annunciation with 24 Limit and Interlock LEDs Enhances Keyboard Display Module Information

Remote Reset