High BTU Capacity: Rated for up to 70

this 17M50 unit (catalog number 17M50

and gas valves to maintain peak thermal efficiency

Can the A99 sensor lead be extended

While primarily used in Carrier and Bryant units

Siemens Building Technology 333-071 Diaphragm 322027-701 High BTU Capacity: Rated forThe 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