Honeywell Sensor and Switch Solutions for HVAC

Product Lines for HVAC Applications

Honeywell provides various product lines suitable for different HVAC needs:

✓Primary sensor/switch used within application (key design consideration for OEM)

✓Secondary sensor/switch used within application (not a key design consideration)

Demand Control Ventilation

An efficient ventilation system responds to real-time data to optimize air recirculation, improving air quality and reducing HVAC running costs. Demand control ventilators meet the growing trend for environmentally friendly buildings with better indoor air quality.

• Measures differential pressure for static duct pressure and indoor air quality.
• Adjusts ventilation rates as the sensor is highly sensitive to carbon dioxide in the air.
• Senses CO₂ in demand control & energy recovery ventilation.

Air Purification/Filter Monitoring

Recent trends highlight the increasing importance of cleaner and healthier air, leading to a greater need for air purification and filter monitoring. Honeywell sensors assist in monitoring differential pressure for clogged filter detection, improving air quality and reducing power consumption.

• Used to monitor differential pressure for clogged filter detection to improve air quality and reduce power consumption.
• Used as airproving switching assemblies, along with mechanical switching for valve position detection.
• Used in HVAC temperature controllers and for thermostat control.
• Used to monitor mass airflow for VAV controllers and in-line transmitters.
• Provides motor and fan control, position sensing, and speed sensing for moving parts.

Air Conditioning

An air conditioning system may consist of a centralized cooling system distributing cold air throughout a building or a standalone unit providing air cooling and filtration within a contained space. Honeywell sensors monitor compressor output and input pressure to enhance system efficiency and reduce power consumption.

• Monitors the air con compressor output and input pressure to enhance system efficiency and reduce power consumption.
• Used to monitor differential pressure for clogged filter detection to improve air quality.
• Used in HVAC temperature controllers and for thermostat control.
• Enable efficient control of the electric motors that drive fans, blowers and pumps.

Heating System: Commercial

Commercial boilers heat water and air using combustion, distributing it through pipes or vents. Energy efficiency and safety are paramount. Honeywell sensors contribute to efficiency and detect faults and leaks.

• Monitors boiler water/steam output and input pressure to enhance system efficiency and reduce power consumption.
• Monitors the flow of warm air or water within the heating system to enhance system efficiency.
• Enable efficient control of the electric motors that drive fans, blowers and pumps.
• Used to measure CO levels, as incomplete combustion can produce carbon monoxide, a risk from gas-burning products.
• Placed on gas pilots to shut off the gas flow if the pilot goes out.
• Activates or deactivates an element or the entire ventilation system.
• Used to monitor steam pressure (overpressure or low pressure indication) in boilers to prevent potentially explosive situations.
• Acts as air-proving switching assemblies or as a float switch for indicating pipe flow backup.
• Limit Switch: Monitors the position of a damper or valve, and when fully open, starts the program sequence.

Heating System: Residential

Residential heating systems heat air or water for distribution throughout a building. Energy efficiency, reliability, and safety are key. Honeywell sensors improve efficiency and detect faults and leaks.

• Used to control the flow of warm air or water within the building and detect for leaks.
• Used to detect incomplete combustion. Carbon monoxide is an odorless, colorless gas formed by incomplete fuel combustion.
• Used in smart thermostats to efficiently manage the HVAC system while improving occupant comfort.
• Enable efficient control of the electric motors that drive fans, blowers and pumps.
• Activates or deactivates an element or the entire ventilation system.

Refrigeration

Refrigeration systems lower and/or maintain temperatures below ambient. New refrigerants improve system efficiency, requiring durable sensors and switches with stable temperatures and burst pressures. Honeywell sensors monitor compressor output and input pressure to enhance system efficiency and reduce power consumption.

• Monitors the refrigeration compressor output and input pressure to enhance system efficiency and reduce power consumption.
• Presence detection, on/off function, function monitoring, and end-of-travel in a Zone 2 hazardous location.
• Used in temperature controllers and for compressor temperature monitoring in refrigeration.
• Enable efficient control of the electric motors that drive fans, blowers and pumps.
• Activates or deactivates an element or the entire system.
• Used to monitor overpressure or low pressure indication to prevent potentially explosive situations.

Pressure Sensors and Transducers

Board Mount Pressure Sensors, Basic ABP/ABP2 Series

• Pressure range: 1 inH₂O to 175 psi
• High accuracy, TEB: 1.5% FSS
• Temperature compensated: -40°C to 110°C
• Temperature operating: -40°C to 110°C
• Extensive media compatibility
• Analog & digital (FC/SPI)
• Best for configurability & value

Board Mount Pressure Sensors, TruStability™ RSC, HSC and SSC Series

• Pressure range: 0.5 inH₂O to 150 psi
• High accuracy, TEB: 1.0% FSS
• Temperature compensated: -40°C to 85°C
• Temperature operating: -40°C to 85°C
• Outstanding EMI/EMC performance
• Analog & digital (FC/SPI)
• Best for accuracy, stability & performance

Heavy Duty Pressure Transducers, MIP Series

• Pressure range: 15 psi to 900 psi
• High accuracy, TEB: 0.75% FSS
• Temperature operating: -40°C to 125°C
• Compatible with a wide range of fluids and gases
• Rugged stainless steel 304L construction
• Outstanding EMI/EMC performance
• Best for accuracy, stability & performance

Hall-Effect and Magnetoresistive Sensor ICs

Linear Hall-Effect Sensor ICs, SS490 Series

• Small size with low power consumption
• Single current sinking or current sourcing linear output
• Built-in laser trimmed thin-film resistors allow sensitivity and temperature compensation
• Responds to either positive or negative gauss
• Quad Hall sensing element for stable output

Magnetoresistive Sensor ICs

• Nanopower Series (SM351LT/SM353LT); Standard Power Series (SM351RT/SM451R/SM353RT/SM453R)
• SOT-23 package (SM351LT/SM353LT/SM351RT/ SM353RT); flat TO-92-style (SM451R/SM453R)
• Sensitivity of 7 G typ., 11 G max. (SM351LT/ /SM351RT/SM451R); 14 G typ., 20 G max. (SM353LT/SM353RT/SM453R)
• Omnipolar sensing activates with either pole from a magnet

High Sensitivity Latching Hall Sensors (SS360ST/NT/PT and SS460S for BLDC commutation)

• Fastest response time in its class
• No chopper stabilization
• High sensitivity; operates from only 30 gauss typ.
• Bipolar latching magnetics
• Can be supplied on tape-and-reel

Temperature Sensors

Thermistors, 192/194 Series

• High quality, low-cost, resistance temperature-matched interchangeable units
• Dissipation constant in still air: 0.75 mW/°C
• Time constant in air: 15.0 s
• Maximum diameter: 2.413 mm (0.095 in)
• Resistance temperature curve, interchangeability, enhanced stability and life, epoxy coated

Gas Sensors

Carbon Dioxide Gas Sensor, CRIR-M1 Series

• Single channel, non-dispersive infrared (NDIR) sensor for detecting Carbon Dioxide
• Small size
• Maintenance free for normal indoor applications
• Enhanced long term stability
• Higher accuracy: ±40 ppm ±3% of reading
• Consistency and repeatability
• Auto baseline correction (ABC)

Carbon Monoxide Gas Sensor, ECOSURE X

• Cost-effective two-electrode electrochemical cell designed for the detection of carbon monoxide in domestic/residential CO detection, industrial fire detection, and ventilation control.
• Unique design for use in extreme environments.
• Suitable for use in BS, EN, UL, LPC, VDS and TÜV accredited products.
• Features an integrated active filter to eliminate false alarms caused by common household vapors.

Airflow Sensors

AWM3300 Series

• Small size
• Amplified signal conditioning
• 30 SCCM to 5 mBar
• Analog output
• 50 mW typ. power consumption
• -25°C to 85°C (-13°F to 185°F) range

MICRO SWITCH BASIC SWITCHES

MICRO SWITCH Basic Switches, IBZ and WA Series; DT Series

• Accepted world-wide standard "Large Basic" switch
• Low operating force and differential travel
• Long mechanical life up to 20,000,000 cycles at 95% survival
• Current rating ranges from 15 A to 25 A
• Choice of actuation, termination and operating characteristics
• Two independent single-pole double throw circuits in one housing and actuator (DT)

MICRO SWITCH V-Basic Miniature Switches, V19 Series

• RoHS/REACH/Cal Prop65 compliant
• UL/CSA, cUL, ENEC, CQC certifications enable global design acceptance and cost savings in agency approvals
• 5 A, 16 A: electrical ratings for design flexibility in one industry standard package
• >1M mechanical operations

MICRO SWITCH V-Basic Miniature Switches, V15 Series

• Designed from 10K to 50K operations at a full load or 5M for mechanical life
• World-wide package size acceptance
• Current rating ranges of 10 A and 26 A
• UL/CSA, cUL, UKCA, ENEC, and CQC approvals

MICRO SWITCH Explosion-Proof Basic Switches, V15W2 Series

• Approved for use in Zone 2 hazardous locations
• IP67 equivalent
• UL, cUL, UKCA, ENEC, CQC, ATEX, IEC Ex approvals
• 5 A electrical rating
• Longer service life: over one million mechanical operations

MICRO SWITCH Subminiature Switches, ZM/ZW/ZX Series

• Best suited for lower cost-of-failure applications
• Small, lightweight, low cost, enhanced life, ample electrical capability
• Choice of low energy or power-duty electrical ratings (gold-plated or silver contacts)
• Choice of ratings, actuation, termination and operating characteristics
• UL/CSA, cUL, ENEC, and CE approvals

MICRO SWITCH TOGGLE SWITCHES

MICRO SWITCH Toggle Switches, NT Series

• ISA 12.12.01 certified; designed for use near flammable hydrocarbon refrigerants
• Quick-connect spade terminals
• UL191 electrical rating
• Sealed to NEMA 3, 3R, 4, 13, and IP67
• Operating temperature range: -40°C to 71°C [-40°F to 160°F]

MICRO SWITCH PUSHBUTTON SWITCHES

Operator Interface Switches and Indicators, AML Series

• Pushbuttons, paddles, rockers, key-actuated, and indicators within AML Series for coordinated panel appearance
• Less than 1.75 inch panel depth
• Two or three positions and maintained or momentary action
• One-, two-, or four-poles with double throw available for most switches

PRESSURE SWITCHES

Extended Duty Pressure Switches, 5000 Series

• Specifically designed to stand up to extended duty applications
• Factory set but capable of field adjustment
• Direct action blade contact
• Burst pressure: 750 psi for 0.5 psi to 24 psi set point range; 1250 psi for 25 psi to 150 psi set point range

Warranty/Remedy

Honeywell warrants its manufactured goods to be free from defective materials and faulty workmanship. Honeywell's standard product warranty applies unless otherwise agreed in writing. Refer to your order acknowledgment or consult your local sales office for specific warranty details. If warranted goods are returned during the coverage period, Honeywell will repair or replace, at its option, defective items found by Honeywell. This is the buyer's sole remedy and is in lieu of all other warranties, expressed or implied, including merchantability and fitness for a particular purpose. Honeywell shall not be liable for consequential, special, or indirect damages.

While Honeywell may provide information or engineering support through its personnel, literature, and website, it is the buyer's sole responsibility to determine the suitability of Honeywell products for the buyer's requirements.

Specifications are subject to change without notice. The information supplied is believed to be accurate and reliable, but Honeywell assumes no responsibility for its use.

FOR MORE INFORMATION

Honeywell Sensing Solutions serves customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing, or the nearest Authorized Distributor, visit automation.honeywell.com/hss or call:

Honeywell Sensing Solutions

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

Document ID: 009636-3-EN | Revision: 3 | Date: 07/25

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