This usually indicates an open high-limit circuit

Fail-Safe Design: Mechanical spring return open damper functionality ensures airflow is maintained if 24V power is interrupted

Durable Construction: High-strength internal core maintains structural integrity even under high-velocity suction gas conditions

Manual Reset Feature: Ensures the system remains offline after a low-pressure event until a technician verifies gas line safety

The VM2211 features an equal percentage flow characteristic

Fenwal 35-605904-001 Control Freon This usually indicates an openThe Fenwal 35 605904 001 Control is a microprocessor based 24 VAC Direct Spark Ignition (DSI) module specifically engineered for high performance gas fired appliances, including special Heat N Glow fireplace systems. This ignition control module utilizes proprietary DETECT A FLAME technology to ensure precise flame sensing and rapid response to flame failure, typically within 0. 8 seconds. Designed to manage the complete operating sequence, the Fenwal