refer to the ZoneFirst ZDM or RDM series actuators

it acts as a secondary failsafe

Shock Absorption: Dampens torsional vibrations and handles up to 0

The LED provides real-time fault codes

Field Serviceability: Features a removable coil and accessible cover for straightforward maintenance and inspection

Lochinvar & A.O. Smith 100093823 Valve R-407A refer to the ZoneFirst ZDMThe Lochinvar & A. O. Smith 100093823 Valve is a direct OEM replacement engineered for high performance gas regulation in specific residential and commercial heating units. This liquid propane (LP) gas valve is factory calibrated to a 10" water column (WC) manifold pressure, ensuring precise fuel delivery to the burner assembly. Featuring a standard 1 2" NPT inlet outlet, this mechanical component facilitates high reliability flow control and is a