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Showing 135 items within 16 product groups See all items from other sellers
  • Two-Way Pressure-Actuated Valves

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    Two-Way Pressure-Actuated Valves Are Used For Fan Coil Units, Unit Heaters, And Single-Stage Packaged Heating/Cooling Equipment.

    Two-Way Pressure-Actuated Valves for High-Pressure Refrigerants regulate water flow to control refrigerant head pressure in systems with water-cooled condensers. Internal parts are corrosion-resistant with no close-fitting or sliding parts in water passages. Accessible range spring. Take-apart build with pressure-balanced structure. Maximum allowable water pressure is 150 psi. Available models are direct acting and come in a variety of different valve connection sizes.

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  • Honeywell Fresh Air Ventilation Control System

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    Honeywell Fresh Air Ventilation Control Systems Optimize Air Delivery Efficiency.

    Fresh Air Ventilation Control operates a fresh air intake damper and, when necessary, activates the main HVAC blower to efficiently meet ASHRAE ventilation rates. Optimizes the air delivery schedule to make efficient use of normal HVAC run times. Easy-to-use input dials allow customized ventilation. Test mode provides immediate feedback to confirm that air delivery requirements of selected ventilation standards are being met. Economical supply-only ventilation works with forced air system. Fresh Air Ventilation System includes the Fresh Air Ventilation Control, EARD6 normally closed 6 inch damper, AT120B 120V AC/24V AC 20V amp transformer, mounting hardware for control and homeowner information label.

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  • Pneumatic Piston Damper Actuators

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    Pneumatic Piston Damper Actuators Are Used For Air Flow Control Dampers, Interior Settings Or Confined Areas.

    Pneumatic Piston Damper Actuators are multipurpose positioning devices used to positioning and operating dampers on Variable Air Volume (VAV), terminal units and small ventilating dampers in response to output signals of a pneumatic controller or electro-pneumatic transducer. Actuators feature high power to size ratio for locations in confined spaces, telescoping linkage and front or rear mounting options for flexible installation and mounting configurations, and a lightweight aluminum housing. Available in a variety of models and spring ranges.

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  • Pneumatic Transducers

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    Pneumatic Transducers Output Pneumatic Control Signals In Response To Electronic Control Signals.

    Electro-Pneumatic Transducers convert a voltage or current signal from an electronic controller into a pneumatic output pressure signal. An increase or decrease in the input signal proportionally increases or decreases (respectively) the output pressure signal from the EP-8000. The 0-10 VDC or 4-20 mA Input Range provides interface with a wide range of controllers or retrofit installations, hypodermic needle test point enables fast and easy output pressure signal measurement, factory set adjustable zero and span facilitates field calibrations, and high accuracy with low hysteresis provides long lasting durability. Easy installation on a variety of mounting surfaces, including direct mounting on pneumatic valve actuators. Available in 3 different output ranges.

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  • Sump Pump Switches

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    Sump Pump Switches Are Used For On/Off Control Of Sump Pumps.

    Sump Pump Switches start an electric motor on liquid level rise and stop the motor on liquid level drop. The control cuts in when upper weight is submerged approximately halfway, and cuts out when lower weight is approximately half-exposed. Each switch includes 36 in. cable and (2) two weights. Equipped with a power cord and a piggyback style plug for ease of use. Available in several models with Clamp or Bracket mount type.

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  • Liquid Level Float Switch

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    Liquid Level Float Switches Are Used For Liquid Level Control For Open And Closed Tanks And Sumps.

    Liquid Level Float Switches are made of a rugged steel enclosure for long lasting durability. Can be wired to close one circuit and open another circuit when liquid level rises above or falls below the required level. The F63AC-1 provides NEMA1 general purpose enclosure. F63BF-1 provides NEMA 3R rain tight enclosure. Not for use with hazardous fluids or in hazardous atmosphere. Max fluid pressure is 100 psig (690 kPa). Max fluid temperature is 250°F (121°C).

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  • TRUERH™ Duct Probe Humidity Devices

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    TRUERH™ Duct Probe Humidity Devices Are Used For Humidity And Temperature Readings In Wall Or Duct-Mount.

    TRUERH™ Duct Probe Humidity Element with Temperature Sensors are made of all-polymer for improved resistance to chemical corrosion. Humidity sensor patented sensing element provides accurate and reliable humidity sensing. Circuitry and calibration techniques are patent pending. One-unit humidity and temperature sensors reduce installation costs. User-selectable output voltage range allows choice of standard voltage outputs for use with systems in service or new systems. HE Series Devices are available in Duct or Wall Mount styles. HL Series Devices provide several humidity control applications, including high-limit or proportional override, stand-alone proportional or stand-alone two position. Duct Humidistats function as an operating control that automatically shuts off a humidifier when setpoint is reached, and turns it on when humidity falls 5% below the setpoint.

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  • Damper Actuators

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    Damper Actuators Provide Control For A Variety of HVAC Applications.

    Damper Actuators improve reliability by eliminating damper linkages, and the single screw coupling provides three-point shaft gripping for ease of use. For zone damper and ball valve actuator applications, the small size provided access to tight-fitting locations. The synchronous drive provides constant rotation time independent of load, and the magnetic clutch provides torque protection for the actuator and damper. Available in a variety of Damper, Non-Spring Return Actuators, and Electric Spring Return Actuator in a variety of styles and torques.

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  • Argo Switching Relays

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    Argo Switching Relays Are Robust Enough To Handle Up To 15 Zones.

    Argo Switching Relays have a sturdy construction for long lasting durability and strength. Available in a variety of styles to fit a wide array of applications. Choose from Single Zone, 2 Zone, 3 Zone, 4 Zone and 6 Zone models. The relay diagnostic light is easily viewable through the window for quick and easy reading. Features Plug-In Replaceable Relays, a 5-Second Time Delay for boiler shut-off and a Priority Safety Timer that prevents freeze-ups and ensures that other zones get heat every 30 minutes. Dimensions vary from model to model.

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  • Argo Hydro-Air Zoning Controls

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    Argo 1-Zone Expansion Module ARH-1

    Plug In Connectors For Easy Expansion Up To 20 Zones / Multiple Terminals For 2-Speed Air Handlers / Built-In Air Handler Freeze Protection / Switchable Priority For Domestic Hot Water Applications / LED Diagnostic Lights For Easy Troubleshooting / Includes Strap On Bi-Metal Aquastat To Prevent Cold Air Circulatin In Heating Mode

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  • Argo Zone Valve Controls

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    Argo Zone Valve Controls Are Clearly Marked For Easy And Accurate Installation.
    Argo Zone Valve Controls have a sturdy construction for long lasting durability. They are compatible with all types of thermostats and have a front window with clearly visible LED, diagnostic lights for easy troubleshooting. Expandable up to 10 zones with priority utilizing two Az controls. Choose from 3 Zone, 4 Zone, 5 Zone and 6 Zone models. Comes in a sleek, black color for an attractive look. Dimensions and horsepowers vary.

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  • Zone Control Panels

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    Zone Control Panels Allow Individual Temperature Adjustments For Varied Zones In Offices, Schools, Health Care Facilities And Other Industrial Venues.

    Zone Control Panels provide temperature control over several individual zones in a building. Panels are available with 2 Zone or 3 Zone controls.

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  • Total Zone System Kits

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    Honeywell TrueZone® System Kits Provide The Benefit Of Even Temperature Control With The Ease Of Application And Maximum Flexibility.

    All kits include a zone panel, transformer and discharge air temperature sensor. Works with virtually any brand equipment for zone control of conventional, heat pump or dual fuel systems. Push-in terminal blocks wire in half the time as compared to screw terminals. 8" wide panels can be mounted on the return duct, studs or wall next to the system. Wires can be run on the side, top, bottom or backside of the panel. LEDs indicate which zones are calling, if it's for heating or cooling and when the emergency heat is on. Reduces blower speed in cooling when one zone is calling. Downstages equipment when discharge air temperature is near the limit or shuts down. YHZ kits include everything you need for a two zone wireless zoning system except dampers.

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  • Zoning Panels

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    Honeywell Zoning Products Are Used For Conventional And Hydronic Heating Systems To Deliver Even Temperature Control And Cost Savings.

    Honeywell AQ series of AQUATROL Programmable Relay Boiler Controls provide simplified, energy-efficient control of single-temperature, residential hydronic heating systems. Easily converts a single zone heating system into a room-by-room comfort control system, or upgrades a basic, relay-logic zoning system to intelligent Zone of Greatest Demand control for increased energy efficiency with reduced boiler cycling. Boiler controls can ensure an ample supply of hot water for both space heating and priority generation of domestic hot water for bathing, dishes and laundry. Choose from the full-featured HZ432, the flexible HZ322, or the economical HZ311 and HZ221 systems for conventional, heat pump or dual fuel applications. Conventional and hydronic thermostats, accessories, replacement parts and kits are also available.

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  • Zoning Static Pressure Control

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    Static Pressure Control - Used W/ Mard For Bypass Control Are Used For A Variety Of Air Quality Applications.

    Static Pressure Control - Used W/ Mard For Bypass Control is constructed with high quality materials for long lasting durability. Replacement part with 24 AC voltage and connection screw terminals. Provides C, NC and NO terminal designation. Motorized bypass application. Quantity is 1.

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  • Pneumatic Actuator

    See all 1 items in product family
    The V-3000 Pneumatic Actuator can position steam or water valve-modulating plugs in response to a pneumatic signal from a controller.

    Features:
    • molded synthetic rubber diaphragm design provides a constant effective area throughout the valve stem stroke
    • die cast aluminum housing coated with corrosion-resistant finish
    • remove or reposition actuator by loosening a single set screw
    • easily field mounted to the valve bonnet with a single set screw. Refer to Linkage Kits for Field Coupling Johnson Controls Actuators to Johnson Controls Valves.
    • can be mounted to any of the V-3000, V-4000, or VT Series Valves (except V-3854)
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37 Results 24 72per pg

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37 Results 24 72per pg