90" WC vacuum with a manometer is the first step

Its design makes it ideal for controlling hot or chilled water in air handling units

from -40°C to 65°C

this is a horizontal-specific drain pan

Fenwal 35-605606-223 Control Els PW 17895 90" WC vacuum with aThe Fenwal 35 605606 223 Control is a microprocessor based Direct Spark Ignition (DSI) module engineered for precise timing and safety in gas fired heating systems. Designed for 24VAC 50 60Hz applications, this DSI ignition board monitors burner operation using advanced remote flame sensing technology to ensure stable performance and rapid response to flame failure. This specific model features a 30 second pre purge cycle to clear the combustion