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the heat relay sequencer is likely the culprit
As an OEM replacement flame sensor
this Watts T&P relief valve serves as a direct drop-in replacement for residential and light commercial boilder and heater safety setups
Features a durable 1/4" barbed vacuum port to secure standard induction tubing without leaks
High Voltage Versatility: Dual-rated for 370V and 440V applications
Antunes Controls 8024204089 Pressure Switch Els PW 17895 the heat relay sequencer isThe Antunes Controls 8024204089 is a high precision air differential pressure switch engineered for critical monitoring in commercial HVAC and industrial process ventilation. This SPDT pressure switch operates within an adjustable range of . 17 6"wc, making it a reliable solution for detecting air flow, duct pressure, and filter status. Featuring 1 8" Female NPT connections, this unit integrates seamlessly into standard pneumatic lines. As the direct
US$ 59.98
US$ 119.99