https://ignition-control-module.info Thu, 23 Jul 2026 05:17:39 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://ignition-control-module.info/2026/07/780-845-hvac-ignition-control-module-for-robertshaw-sp745-sp845-24vac/ https://ignition-control-module.info/2026/07/780-845-hvac-ignition-control-module-for-robertshaw-sp745-sp845-24vac/#comments Thu, 02 Jul 2026 04:35:43 +0000 https://ignition-control-module.info/2026/07/780-845-hvac-ignition-control-module-for-robertshaw-sp745-sp845-24vac/








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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