Plaza notes
Hard ruleDescription
The 755-50 is typically used as the upper control in a two-element system or as the primary control in a single-element series circuit where a full power disconnect is required
If your specific furnace or boiler assembly requires longer runs
it restores power to the burner once the water level returns to a safe operating range
The barbed fitting connectors are designed to securely grip 1/8" through 1/4" ID flexible plastic tubing
Common Questions: How do I reset the control after a trip
York S1-031-09179-000 Board Els PW 17895 The 755-50 is typically usedThe York S1 031 09179 000 24V Relay Lock In Board is a critical control component designed for precise sequence management in commercial and residential HVAC systems. This genuine OEM part serves as the direct replacement for S1 031 09155 000, addressing common communication failures and relay chatter issues found in older board revisions. Operating on a standard 24V AC control circuit, this board functions as a lockout relay, preventing short cycling
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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