" meaning the module will attempt to light the burner three times before entering a safety lockout mode if no flame is sensed

or if you are verifying the gas manifold pressure and find irregular heat output

High BTU Capacity: Rated for up to 70

While primarily used in Carrier and Bryant units

Direct Technical Fit: Standard electrical connections and port sizing allow for efficient installation during service calls

Siemens Building Technology 333-071 Diaphragm 322027-701 " meaning the module willThe Siemens Building Technology 333 071 Diaphragm is a critical replacement component designed specifically for No. 4 pneumatic damper actuators with sheet metal cylinder housings. Engineered for high temperature pneumatic systems, this EPDM based diaphragm ensures consistent seal integrity and terminal equipment control in demanding HVAC environments. This specific 5 pack kit is compatible with Siemens 331 series actuators featuring part numbers 331