Greenheck 386418 Pressure Switch
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Greenheck 386418 Pressure Switch

Greenheck 386418 Pressure Switch

The Greenheck 386418 Pressure Switch is a critical safety and monitoring component designed for precise differential pressure sensing in commercial HVAC systems. This dual air pressure switch operates by monitoring the pressure drop across filters, coils, or fan inlets to ensure proper airflow and system integrity. Engineered for high-cycle reliability, the 386418 features a single-pole double-throw (SPDT) contact configuration, allowing for seamless integration into BAS (Building Automation Systems) or local control loops. The adjustable setpoint range ensures field versatility, while the rugged housing maintains calibration stability in demanding rooftop or mechanical room environments. For technicians performing Greenheck fan troubleshooting or routine maintenance, this switch provides the necessary airflow validation to prevent equipment damage or ASHRAE compliance issues. Whether you are replacing a failed OEM pressure switch or upgrading a variable volume system, the Greenheck 386418 delivers the accuracy required for high-performance air handling applications.

Product Specifications and Benefits:
  • Universal Compatibility: Direct replacement for various Greenheck centrifugal and axial fan assemblies.
  • Dual Sensing Port: High and low-pressure ports allow for accurate differential pressure measurement.
  • Industrial Build: Durable diaphragm and housing resist vibration and temperature fluctuations common in ventilation systems.
  • Seamless Integration: Standard electrical knockouts and mounting holes for fast field installation.
Common Technician Questions:

What is the typical application for this dual pressure switch?
This switch is primarily used to monitor fan proving and filter status. It detects the pressure differential to ensure the fan is moving air before enabling heating or cooling stages.

Can the setpoint be adjusted in the field?
Yes, this unit allows for field calibration to match specific static pressure requirements, though it is often pre-set for standard Greenheck configurations.

How does this switch improve system safety?
By providing positive airflow proof, it prevents the system from running "blind," which protects electrical heaters from overheating and ensures proper indoor air ventilation levels.

This item is not eligible for free shipping.

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.

$62.45

Original: $178.42

-65%
Greenheck 386418 Pressure Switch

$178.42

$62.45

Greenheck 386418 Pressure Switch

The Greenheck 386418 Pressure Switch is a critical safety and monitoring component designed for precise differential pressure sensing in commercial HVAC systems. This dual air pressure switch operates by monitoring the pressure drop across filters, coils, or fan inlets to ensure proper airflow and system integrity. Engineered for high-cycle reliability, the 386418 features a single-pole double-throw (SPDT) contact configuration, allowing for seamless integration into BAS (Building Automation Systems) or local control loops. The adjustable setpoint range ensures field versatility, while the rugged housing maintains calibration stability in demanding rooftop or mechanical room environments. For technicians performing Greenheck fan troubleshooting or routine maintenance, this switch provides the necessary airflow validation to prevent equipment damage or ASHRAE compliance issues. Whether you are replacing a failed OEM pressure switch or upgrading a variable volume system, the Greenheck 386418 delivers the accuracy required for high-performance air handling applications.

Product Specifications and Benefits:
  • Universal Compatibility: Direct replacement for various Greenheck centrifugal and axial fan assemblies.
  • Dual Sensing Port: High and low-pressure ports allow for accurate differential pressure measurement.
  • Industrial Build: Durable diaphragm and housing resist vibration and temperature fluctuations common in ventilation systems.
  • Seamless Integration: Standard electrical knockouts and mounting holes for fast field installation.
Common Technician Questions:

What is the typical application for this dual pressure switch?
This switch is primarily used to monitor fan proving and filter status. It detects the pressure differential to ensure the fan is moving air before enabling heating or cooling stages.

Can the setpoint be adjusted in the field?
Yes, this unit allows for field calibration to match specific static pressure requirements, though it is often pre-set for standard Greenheck configurations.

How does this switch improve system safety?
By providing positive airflow proof, it prevents the system from running "blind," which protects electrical heaters from overheating and ensures proper indoor air ventilation levels.

This item is not eligible for free shipping.

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.

Product Information

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Description

The Greenheck 386418 Pressure Switch is a critical safety and monitoring component designed for precise differential pressure sensing in commercial HVAC systems. This dual air pressure switch operates by monitoring the pressure drop across filters, coils, or fan inlets to ensure proper airflow and system integrity. Engineered for high-cycle reliability, the 386418 features a single-pole double-throw (SPDT) contact configuration, allowing for seamless integration into BAS (Building Automation Systems) or local control loops. The adjustable setpoint range ensures field versatility, while the rugged housing maintains calibration stability in demanding rooftop or mechanical room environments. For technicians performing Greenheck fan troubleshooting or routine maintenance, this switch provides the necessary airflow validation to prevent equipment damage or ASHRAE compliance issues. Whether you are replacing a failed OEM pressure switch or upgrading a variable volume system, the Greenheck 386418 delivers the accuracy required for high-performance air handling applications.

Product Specifications and Benefits:
  • Universal Compatibility: Direct replacement for various Greenheck centrifugal and axial fan assemblies.
  • Dual Sensing Port: High and low-pressure ports allow for accurate differential pressure measurement.
  • Industrial Build: Durable diaphragm and housing resist vibration and temperature fluctuations common in ventilation systems.
  • Seamless Integration: Standard electrical knockouts and mounting holes for fast field installation.
Common Technician Questions:

What is the typical application for this dual pressure switch?
This switch is primarily used to monitor fan proving and filter status. It detects the pressure differential to ensure the fan is moving air before enabling heating or cooling stages.

Can the setpoint be adjusted in the field?
Yes, this unit allows for field calibration to match specific static pressure requirements, though it is often pre-set for standard Greenheck configurations.

How does this switch improve system safety?
By providing positive airflow proof, it prevents the system from running "blind," which protects electrical heaters from overheating and ensures proper indoor air ventilation levels.

This item is not eligible for free shipping.

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.

Greenheck 386418 Pressure Switch | GSIstore