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Compatible with Robertshaw 780-845 HVAC Ignition Control Module, Replacement for SP745 & SP845, 780-002 Lockout Kit, 24VAC Direct Spark Ignition Controller with Diagnostic LED, for ROBERTSHAW Systems. Direct Replacement: Designed as a direct replacement for SP745 in fit, form, and function for most applications. Compatible with 780-002 lockout kits and Robertshaw ICU systems. Upgrades your old ignition control with microprocessor technology and diagnostic LED. Lockout & Retry: Provides 90 seconds of spark, then a 6minute purge delay between ignition attempts. After 3 unsuccessful trials (no pilot flame sensed), the module enters a 1hour lockout period. After lockout, if heat demand remains, it automatically retries 3 more cycles. Manual reset also available at thermostat. Diagnostic LED: Built in green diagnostic LED: continuously ON = normal operation; OFF = internal lockout; flashing = external problem e. Helps HVAC technicians quickly identify issues without extra tools. Electrical Specs: Input voltage: 24 VAC 50/60 Hz (requires 20 VA transformer). Flame sense current: 0.7 A DC at 25C / 24 VAC. Flame failure reignition time 2 seconds. Ambient temperature range: -40F to 175F (-40C to 80C). Easy Wiring: Clearly labeled terminals: MV (Main Valve), PV (Pilot Valve), TH (24V Thermostat), TR (Transformer Ground), SENSE, SPARK, etc. Includes flying lead wire for local flame sensing and a REMOTE SENSE terminal for remote sensor installations. Compatible with both local and remote flame sensing setups. Item Weight:? 8 ounces. Included Components:? 780-845 HVAC Ignition Module. And we will work with you to resolve it to your satisfaction.

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Robertshaw 780-845 Ignition Module Intermittent Pilot 24V SP845. Series Application: 780-845, 24V Intermittent Pilot Ignition. Spark Rate: 4 to 15 per Second. Maximum Total Current Load: 1.5 Amps. Flame Failure Re-Ignition Time: 2 Seconds. Safety Lockout Timing: 90 Seconds. Weight : 1.25 LBR Model : SP845 UPC-EAN : 662013644727. The Robertshaw 780 Series Pilot Controls feature flame rectification with solid-state logic and flame sensing to provide automatic sequencing that will ensure proper operation of an intermittent pilot ignition device. When the thermostat calls for heat, the 780 series control simultaneously initiates ignition sparking and opens the pilot valve portion of the gas valve. Pilot flame recognition stops ignition sparking and opens the main valve portion of the gas valve. Pilot burner flame is continuously monitored at a synchronous frequency for the duration of the heating cycle. Should the pilot flame fail during the heating cycle, the control will shut off the main valve until the pilot flame is established. The Robertshaw 780-845 lockout ignition control provides 90 seconds of spark, followed by a six minute time delay (purge) between ignition attempts. If the pilot flame is not sensed after three tries, the control goes into a one-hour lockout period. At the end of the lockout period, if the demand for heat is still present, the unit will repeat the three tries for ignition. Easy-to-install with complete in-depth installation instructions. Pilot and main valves draw 1 Amp at 0.5 power factor. Combined load at 1.5 Amps at 0.4 power factor. 95% relative humidity noncondensing at 104F.

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