Fireye MEP230 Module 318973-401 The HS3 designations are specifically

The HS3 designations are specifically matched to the armature diameter and stroke length of GC Valves' standard S3 frames

25" x 3" x 4" and a 3-hole configuration

Using it on other brands may result in incorrect mounting or improper defrost timing due to different bimetal switch points

and PTAC systems where a 120V control circuit is utilized to switch high-voltage power

Fireye MEP230 Module 318973-401 The HS3 designations are specificallyThe Fireye MEP230 is a microprocessor based programmable module designed for the Fireye MicroM flame safeguard system. Engineered for professional grade burner management, this module provides critical sequencing and timing functions for commercial and industrial heating applications. The MEP230 features specialized selectable settings via onboard DIP switches, allowing technicians to field configure purge timing (7, 30, 60, or 90 seconds), pilot