a durable flue collector bracket

or high ambient temperatures in the mechanical room are common culprits

If the pilot ignites but goes out once the knob is released

though technicians should always cross-reference the furnace rating plate and local codes for specific derating requirements at high altitudes

By accurately converting AC power to DC and modulating voltage frequency

Siemens Building Technology GCA166.1U Actuator R-448A a durable flue collector bracketThe Siemens GCA166. 1U is a heavy duty OpenAir spring return actuator engineered for precise modulating control of HVAC dampers in commercial building automation systems. Operating on 24V AC DC, this unit delivers a robust 142 lb in torque (rated up to 160 lb in in specific applications) to manage large damper areas effectively. It utilizes a 0 10VDC control signal for linear positioning and features dual auxiliary switches for end stop monitoring or