Honeywell S437A1009/U S437 Sail Switch. S437 Sail Switches respond to the air velocity in heating or warm air ducts, such as used in farm crop dryers. The switch completes a 24V or line voltage burner control circuit only when the blower or fan has produced a preset air velocity.
Manufacturer: | Honeywell |
Style: | Parts |
Switch | |
Mpn # | S437A1009 |
Weight | 7.10 lbs. |