Resideo S688A1007 Sail Switch
The Resideo S688A1007 Sail Switch is a critical interlocking control designed to prove airflow before activating ancillary HVAC components like electronic air cleaners or humidifiers. Featuring SPDT switching, this duct-mounted airflow switch operates within a velocity range of 75 to 250 Fpm, ensuring reliable equipment activation only when the system blower is moving sufficient CFM. The unit utilizes a large 26.2 square inch sail (5" wide) with a 10" insertion length, providing enough surface area to detect low-velocity air movement in larger residential or light commercial ducts. Contractors should note that the S688A1007 is the direct cross-reference and is functionally identical to part number 100145. The polyester film sail can be trimmed to fit smaller duct dimensions, making it a versatile HVAC pressure switch alternative for systems where traditional differential pressure switches are difficult to calibrate. This Honeywell Home sail switch ensures the load only energizes during active fan cycles, preventing component burnout and stagnant moisture buildup.
Key Benefits for Technicians- Universal Compatibility: Operates as a reliable furnace sail switch for any equipment requiring proof of flow via SPDT contacts.
- Field-Adjustable: The large sail area can be modified to match specific duct velocity requirements and physical space constraints.
- Simplified Wiring: The SPDT configuration allows for normally open or normally closed wiring logic depending on the peripheral equipment requirements.
- Low-Velocity Sensitivity: Designed to trigger at as low as 75 Fpm, making it suitable for high-efficiency variable speed systems.
Can the S688A1007 be mounted in any orientation?
For optimal sensitivity, the switch should be mounted on a vertical duct with the sail pointing into the airstream. Horizontal mounting is possible but may require gravity compensation during calibration.
How do I handle high-velocity applications exceeding 250 Fpm?
If the duct airflow exceeds the maximum operating velocity, the sail can be trimmed to reduce drag and prevent damage to the microswitch mechanism.
Is the S688A1007 a direct replacement for the 100145 model?
Yes, the S688A1007 and the 100145 share identical technical specifications and footprints, allowing for a drop-in replacement without duct modifications.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Resideo S688A1007 Sail Switch
The Resideo S688A1007 Sail Switch is a critical interlocking control designed to prove airflow before activating ancillary HVAC components like electronic air cleaners or humidifiers. Featuring SPDT switching, this duct-mounted airflow switch operates within a velocity range of 75 to 250 Fpm, ensuring reliable equipment activation only when the system blower is moving sufficient CFM. The unit utilizes a large 26.2 square inch sail (5" wide) with a 10" insertion length, providing enough surface area to detect low-velocity air movement in larger residential or light commercial ducts. Contractors should note that the S688A1007 is the direct cross-reference and is functionally identical to part number 100145. The polyester film sail can be trimmed to fit smaller duct dimensions, making it a versatile HVAC pressure switch alternative for systems where traditional differential pressure switches are difficult to calibrate. This Honeywell Home sail switch ensures the load only energizes during active fan cycles, preventing component burnout and stagnant moisture buildup.
Key Benefits for Technicians- Universal Compatibility: Operates as a reliable furnace sail switch for any equipment requiring proof of flow via SPDT contacts.
- Field-Adjustable: The large sail area can be modified to match specific duct velocity requirements and physical space constraints.
- Simplified Wiring: The SPDT configuration allows for normally open or normally closed wiring logic depending on the peripheral equipment requirements.
- Low-Velocity Sensitivity: Designed to trigger at as low as 75 Fpm, making it suitable for high-efficiency variable speed systems.
Can the S688A1007 be mounted in any orientation?
For optimal sensitivity, the switch should be mounted on a vertical duct with the sail pointing into the airstream. Horizontal mounting is possible but may require gravity compensation during calibration.
How do I handle high-velocity applications exceeding 250 Fpm?
If the duct airflow exceeds the maximum operating velocity, the sail can be trimmed to reduce drag and prevent damage to the microswitch mechanism.
Is the S688A1007 a direct replacement for the 100145 model?
Yes, the S688A1007 and the 100145 share identical technical specifications and footprints, allowing for a drop-in replacement without duct modifications.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Resideo S688A1007 Sail Switch is a critical interlocking control designed to prove airflow before activating ancillary HVAC components like electronic air cleaners or humidifiers. Featuring SPDT switching, this duct-mounted airflow switch operates within a velocity range of 75 to 250 Fpm, ensuring reliable equipment activation only when the system blower is moving sufficient CFM. The unit utilizes a large 26.2 square inch sail (5" wide) with a 10" insertion length, providing enough surface area to detect low-velocity air movement in larger residential or light commercial ducts. Contractors should note that the S688A1007 is the direct cross-reference and is functionally identical to part number 100145. The polyester film sail can be trimmed to fit smaller duct dimensions, making it a versatile HVAC pressure switch alternative for systems where traditional differential pressure switches are difficult to calibrate. This Honeywell Home sail switch ensures the load only energizes during active fan cycles, preventing component burnout and stagnant moisture buildup.
Key Benefits for Technicians- Universal Compatibility: Operates as a reliable furnace sail switch for any equipment requiring proof of flow via SPDT contacts.
- Field-Adjustable: The large sail area can be modified to match specific duct velocity requirements and physical space constraints.
- Simplified Wiring: The SPDT configuration allows for normally open or normally closed wiring logic depending on the peripheral equipment requirements.
- Low-Velocity Sensitivity: Designed to trigger at as low as 75 Fpm, making it suitable for high-efficiency variable speed systems.
Can the S688A1007 be mounted in any orientation?
For optimal sensitivity, the switch should be mounted on a vertical duct with the sail pointing into the airstream. Horizontal mounting is possible but may require gravity compensation during calibration.
How do I handle high-velocity applications exceeding 250 Fpm?
If the duct airflow exceeds the maximum operating velocity, the sail can be trimmed to reduce drag and prevent damage to the microswitch mechanism.
Is the S688A1007 a direct replacement for the 100145 model?
Yes, the S688A1007 and the 100145 share identical technical specifications and footprints, allowing for a drop-in replacement without duct modifications.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
