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Professionals in the field know that a cold start is the fastest way to kill a compressor
Common Questions Is the 86H31 interchangeable with the 86H3101
Optimized for UL555S fire and smoke applications to meet stringent life safety building codes
What are the signs of a failing defrost control board
Fenwal 35-665721-101 Control Els PW 29614 Professionals in the field knowThe Fenwal 35 665721 101 is a microprocessor based 24V Hot Surface Ignition (HSI) control designed for precise burner sequencing in gas fired equipment. This MiniIgnition control features a 4 second Trial for Ignition (TFI) and a 15 second pre purge cycle to exhaust residual gases from the combustion chamber, ensuring a safe start up. Built with a single trial ignition logic (1TRY), the 35 665721 101 provides reliable flame monitoring and utilizes
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