Honeywell Sensor and Switch Solutions for HVAC

Overview

This document details various Honeywell product lines that can be used to support HVAC applications. The focus is on how sensors and switches contribute to efficient ventilation, improved air quality, and reduced HVAC running costs.

Product Applications in HVAC

Honeywell offers a range of sensors and switches for diverse HVAC applications:

• Demand Control Ventilation: Utilizes gas sensors (CO2, CO) and various switches for optimizing ventilation rates based on air quality.
• Variable Air Volume (VAV) Control: Employs airflow sensors and pressure sensors to monitor and control air volume within ducting, ensuring proper air distribution and preventing temperature imbalances.
• Air Purification/Filter Monitoring: Uses pressure sensors to detect clogged filters, improving air quality and reducing power consumption.
• Air Conditioning: Incorporates pressure sensors to monitor compressor output and input pressure for enhanced system efficiency and thermal sensors for temperature control.
• Heating Systems (Residential & Commercial): Features pressure sensors for monitoring water/steam pressure and flow, CO sensors for detecting incomplete combustion, and thermal sensors for temperature control and thermostat integration. Limit switches are used for damper/valve position monitoring.
• Refrigeration: Utilizes pressure sensors for compressor monitoring, thermal sensors for temperature control, and switches for presence detection and function monitoring, especially in hazardous locations.

Key Honeywell Product Categories

Pressure Sensors and Transducers

• Board Mount Pressure Sensors (Basic ABP/ABP2 Series): Offer a wide pressure range, high accuracy, and broad media compatibility. Available in analog and digital outputs.
• Board Mount Pressure Sensors (TruStability™ RSC, HSC, and SSC Series): Provide high accuracy, excellent EMI/EMC performance, and stability. Available in analog and digital outputs.
• Heavy Duty Pressure Transducers (MIP Series): Feature a wide pressure range, high accuracy, rugged stainless steel construction, and compatibility with various fluids and gases.

Hall-Effect and Magnetoresistive Sensor ICs

• Linear Hall-Effect Sensor ICs (SS490 Series): Small, low-power sensors with a single linear output, offering sensitivity and temperature compensation.
• Magnetoresistive Sensor ICs (Nanopower and Standard Power Series): Available in SOT-23 and TO-92 packages, these omnipolar sensors activate with either pole of a magnet.
• High Sensitivity Latching Hall Sensors (SS360ST/NT/PT and SS460S): Offer fast response times and high sensitivity, suitable for applications like BLDC commutation.

Temperature Sensors

• Thermistors (192/194 Series): High-quality, low-cost, resistance-matched interchangeable units with epoxy coating for enhanced stability and life.

Gas Sensors

• Carbon Dioxide Gas Sensor (CRIR-M1 Series): A small, maintenance-free NDIR sensor with high accuracy and long-term stability for CO2 detection.
• Carbon Monoxide Gas Sensor (ECOSURE X): A cost-effective electrochemical cell for CO detection in domestic, industrial, and ventilation control applications, featuring an active filter to prevent false alarms.

Airflow Sensors

• AWM3300 Series: Compact sensors with amplified signal conditioning, analog output, and a wide operating temperature range.

Micro Switch Basic Switches

• Large Basic Switches (IBZ and WA Series; DT Series): World-accepted standard switches with low operating force, long mechanical life, and various actuation options.
• Subminiature Switches (ZM/ZW/ZX Series): Small, lightweight, low-cost switches suitable for lower-cost-of-failure applications, with options for low energy or power-duty ratings.

Micro Switch Miniature Switches

• V-Basic Miniature Switches (V19 Series): RoHS/REACH compliant with global agency certifications, offering flexible electrical ratings in a standard package.
• V-Basic Miniature Switches (V15 Series): Designed for a range of mechanical operations with world-wide package size acceptance and various current ratings.
• Explosion-Proof Basic Switches (V15W2 Series): Approved for hazardous locations (Zone 2), IP67 equivalent, with ATEX and IEC Ex approvals.

Micro Switch Toggle Switches

• Toggle Switches (NT Series): ISA 12.12.01 certified, designed for use with flammable refrigerants, sealed to NEMA standards, and suitable for a wide operating temperature range.

Micro Switch Pushbutton Switches

• Operator Interface Switches and Indicators (AML Series): Includes pushbuttons, paddles, rockers, and indicators for coordinated panel appearance, with various position and action options.

Pressure Switches

• Extended Duty Pressure Switches (5000 Series): Designed for extended duty applications, factory set but field adjustable, with direct action blade contacts and high burst pressure ratings.

Warranty and Remedy

Honeywell warrants its manufactured goods to be free from defective materials and faulty workmanship. The standard product warranty applies unless otherwise agreed in writing. Honeywell will repair or replace defective items at its option. This is the buyer's sole remedy and is in lieu of all other warranties. Honeywell is not liable for consequential, special, or indirect damages. Buyers are responsible for determining the suitability of Honeywell products for their specific requirements. Specifications are subject to change without notice.

For More Information

Contact Honeywell Sensing Solutions through their worldwide network of sales offices and distributors. For application assistance, current specifications, pricing, or to find an Authorized Distributor, visit automation.honeywell.com/hss or contact them via phone:

Honeywell Sensing Solutions
830 East Arapaho Road
Richardson, TX 75081
www.honeywell.com