Honeywell S637A1004/U S637 Sail Switch |
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SKU: 375964
$162.80/ea
Save 51% ·
Retail: $329.95
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About the Honeywell S637A1004Honeywell S637A1004/U S637 Sail Switch. S637 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. |
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