This constant differential cold control features a 42-inch capillary tube

and AVPTC series

Rotating the adjustment stem allows technicians to fine-tune the superheat setting based on real-time suction line temperature and pressure readings

utilizing two independently adjustable SPDT snap-acting switches mounted on a common foot bracket

Reznor 100528 Retro Kit Els PW 29614 This constant differential cold controlThe Reznor 100528 Spark Kit is a specialized ignition conversion solution designed for high performance gas fired heating units. Engineered as a direct Reznor OEM replacement part, this retrofit kit is specifically tailored for B25 165 AH3 and F B 200 250 series units using natural gas. By replacing obsolete standing pilot systems with a modern electronic spark ignition, this kit significantly improves the DSI control sequence and ensures reliable