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    Industrial HVAC Components & Controls

    Enhance climate control efficiency with quality air handlers, actuators, and boiler controls, tailored for reliable HVAC performance in commercial and industrial settings.

    Optimize your HVAC systems with our comprehensive range of high-quality components and controls. Our HVAC selection features air conditioners, air handlers, boiler controls, flame/spark rods, and HVAC actuators to meet your industrial and commercial heating, ventilation, and air conditioning needs. Whether you're maintaining commercial buildings, optimizing industrial HVAC systems, or upgrading climate control in manufacturing facilities, our comprehensive range of HVAC components ensures peak performance and efficiency in your heating, ventilation, and air conditioning applications. Shop now for top-quality HVAC components and systems to optimize your industrial climate control.

    Rockwell Disclaimer: The product is used surplus. Radwell is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Radwell is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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    Results 201-250 of 849.
    SIEMENS PTM6.2Q250

    SIEMENS

    LANDIS & GYR

    PTM6.2Q250

    DISCONTINUED BY MANUFACTURER, DIGITAL OUTPUT MODULE, POINT TERMINATION MODULE, 2 POINT DIGITAL
    ✓ IN STOCK!
    Buy Surplus As Low As $55.73
    $55.73
    QUINCY AIR COMPRESSOR 23458-1

    QUINCY AIR COMPRESSOR

    23458-1

    OEM REPLACEMENT FILTER
    ✓ IN STOCK!
    $161.00 Buy Surplus As Low As $86.67
    $86.67
    SIEMENS 091-60230-82

    SIEMENS

    STAEFA CONTROL SYS

    091-60230-82

    STAEFA CONTROL SYS, SIEMENS, 091-60230-82, PC BOARD SMART2PLUS FAN COIL
    ✓ IN STOCK!
    Buy Surplus As Low As $795.60
    $795.60
    Repair Yours $660.35
    JOHNSON CONTROLS D-9502-9

    JOHNSON CONTROLS

    D-9502-9

    POSITIONER ,FOR D-3153 2-STAGE
    ✓ IN STOCK!
    $688.00 Buy Surplus As Low As $352.43
    $352.43
    Repair Yours $343.00
    HEATCRAFT 23100201

    HEATCRAFT

    23100201

    FAN BLADE 8INCH 37DEGREE 4BLADE
    $34.00 Buy Surplus As Low As $23.00
    $23.00
    JOHNSON CONTROLS TE-6001-1

    JOHNSON CONTROLS

    TE-6001-1

    DUCT TEMPERATURE, ELEMENT HOLDER, W/ HANDI BOX, SENSOR MOUNTING ASSEMBLY
    ✓ IN STOCK!
    $50.00 Buy Surplus As Low As $30.00
    $30.00
    HONEYWELL Q473B-2005

    HONEYWELL

    Q473B-2005

    DISCONTINUED BY MANUFACTURER, SWITCHING SUB-BASE, AUTO OFF, FOR T451A2XXX THERMOSTAT
    ✓ IN STOCK!
    Buy Surplus As Low As $11.85
    $11.85
    HONEYWELL XF522-A

    HONEYWELL

    XF522-A

    DISCONTINUED BY MANUFACTURER, ANALOG OUTPUT MODULE, 11VDC, 1MA
    ✓ IN STOCK!
    Buy Surplus As Low As $3,120.90
    $3,120.90
    Repair Yours $2,500.00
    HONEYWELL XF521-A

    HONEYWELL

    XF521-A

    DISCONTINUED BY MANUFACTURER, INPUT MODULE, ANALOG, 20 AMP MAX, 10 VDC, 8 POINT
    ✓ IN STOCK!
    Buy Surplus As Low As $227.51
    $227.51
    Repair Yours $300.00
    HONEYWELL M6184D-1035

    HONEYWELL

    M6184D-1035

    DAMPER ACTUATOR, M61 SERIES, FLOATING CONTROL SIGNAL, 24 VAC SUPPLY, 50/60HZ, 90-160 DEGREE ROTATIONAL STROKE, 3/8 INCH SHAFT SIZE
    ✓ IN STOCK!
    $1,341.00 Buy Surplus As Low As $751.91
    $751.91
    Repair Yours $550.00
    HONEYWELL XL100CU

    HONEYWELL

    XL100CU

    DISCONTINUED BY MANUFACTURER, HVAC CONTROLLER, EXCEL 100C, C-BUS COMMUNICATION, UP TO 30 DEVICES, MODEM / ISDN / GSM, 12 UNIVERSAL INPUTS, 12 DIGITAL INPUTS, 12 UNIVERSAL OUTPUTS, LED INDICA ...
    ✓ IN STOCK!
    Buy Surplus As Low As $3,014.81
    $3,014.81
    Repair Yours $2,400.00
    JOHNSON CONTROLS V47AC-8

    JOHNSON CONTROLS

    V47AC-8

    VALVE, V47 SERIES, 3/4" NPT, 75 TO 135 DEGREES F HEATING POINT RANGE, CAST BRASS DIRECT ACTING TEMPERATURE ACTUATED WATER REGULATING VALVE WITH 6' CAPILLARY
    ✓ IN STOCK!
    $755.72 Buy Surplus As Low As $453.43
    $453.43
    Repair Yours $374.00
    ALLEN BRADLEY 837-N16

    ALLEN BRADLEY

    837-N16

    TYPE 316 STAINLESS STEEL, DIRECT IMMERSION, 3-1/2 IN. (89MM) THERMOSTAT WELL
    ✓ IN STOCK!
    Buy Surplus As Low As $381.60
    $381.60
    Repair Yours $300.00
    3M 960

    3M

    960

    AIR IONIZER; IONIZER TYPE:BENCHTOP; SUPPLY VOLTAGE VAC:24V; PRODUCT RANGE:-; DEPTH:5.1CM; EXTERNAL DEPTH:2; EXTERNAL HEIGHT:4.5; EXTERNAL WIDTH:3.3; HEIGHT:11.5CM; SUPPLY VOLTAGE:24V; WIDTH: ...
    ✓ IN STOCK!
    $704.00 Buy Surplus As Low As $423.00
    $423.00
    JOHNSON CONTROLS XP-9102-8304

    JOHNSON CONTROLS

    METASYS

    XP-9102-8304

    DISCONTINUED BY MANUFACTURER, EXPANSION MODULE, 6 ANALOG INPUTS, 2 ANALOG OUTPUTS, 24 VAC, 50/60 HZ, 3 VA, P/N: XP 9102
    ✓ IN STOCK!
    Buy Surplus As Low As $584.60
    $584.60
    Repair Yours $560.00
    JOHNSON CONTROLS W43A-14

    JOHNSON CONTROLS

    PENN BASO

    W43A-14

    HUMIDISTAT, 0/70% RH SPDT, LOW LINE VOLTAGE, HORIZONTAL OR VERTICAL MTG
    ✓ IN STOCK!
    $308.78 Buy Surplus As Low As $234.68
    $234.68
    JOHNSON CONTROLS DX-9100-8454

    JOHNSON CONTROLS

    METASYS

    DX-9100-8454

    DISCONTINUED BY MANUFACTURER, CONTROLLER MODULE, PLANT, EXTENDED, DIGITAL, 24 VAC, 14 OUTPUT
    ✓ IN STOCK!
    Buy Surplus As Low As $1,118.99
    $1,118.99
    Repair Yours $790.00
    HONEYWELL RM7888A1027

    HONEYWELL

    RM7888A1027

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, SELECTABLE PILOT TYPE, 15 SECOND MAIN FLAME ESTABLISHING PERIOD, 10 SECOND PILOT FLAME ESTABLISHING PERIOD, 120 VAC, 50/60 HZ
    ✓ IN STOCK!
    $3,951.57 Buy Surplus As Low As $2,370.94
    $2,370.94
    Repair Yours $1,095.00
    ALLEN BRADLEY 20A-RF-08-A1

    ALLEN BRADLEY

    20A-RF-08-A1

    DISCONTINUED BY MANUFACTURER 05/31/2012, EMC LINE FILTER, FILTER KIT, EMC, EXTERNAL, FOR POWERFLEX 70, 200-240 VAC, 8 AMP, SINGLE PHASE DRIVE, 1 OHM, MOUNTABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $169.00
    $169.00
    HONEYWELL LP914A-1052

    HONEYWELL

    LP914A-1052

    TEMPERATURE SENSOR, 6-1/2 INCH LONG, 40-240DEG F
    ✓ IN STOCK!
    $1,077.00 Buy Surplus As Low As $560.84
    $560.84
    HONEYWELL 14506344-001

    HONEYWELL

    14506344-001

    DISCONTINUED BY MANUFACTURER, PC BOARD, RS485 INTERFACE BOARD, INTELLIGENT DISPLAY, DNFS
    ✓ IN STOCK!
    Buy Surplus As Low As $969.65
    $969.65
    Repair Yours $960.00
    HONEYWELL XF529

    HONEYWELL

    XF529

    DISCONTINUED BY MANUFACTURER, DIGITAL OUTPUT MODULE, WITHOUT OVERRIDE SWITCHES, NO REPLACEMENT
    ✓ IN STOCK!
    Buy Surplus As Low As $379.16
    $379.16
    Repair Yours $314.70
    HONEYWELL XF523-A

    HONEYWELL

    XF523-A

    DISCONTINUED BY MANUFACTURER, INPUT MODULE, XL600, DIGITAL, 12 INPUT, 24 VAC/DC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,853.55
    $1,853.55
    GRAINGER 2C222

    GRAINGER

    DAYTON

    2C222

    FAN, 10-INCH, 115 V, 1/100 HP, 0.72 AMP, 1550 RPM
    ✓ IN STOCK!
    Buy Surplus As Low As $97.08
    $97.08
    Repair Yours $300.00
    HONEYWELL 51401286-100

    HONEYWELL

    MEASUREX

    51401286-100

    DISCONTINUED BY MANUFACTURER, PC BOARD, ENHANCED PERIPHERAL DISPLAY GENERATOR, FOR UNIVERSAL STATION NODES, SCSI CONTROL
    ✓ IN STOCK!
    Buy Surplus As Low As $2,800.88
    $2,800.88
    Repair Yours $1,490.00
    SIEMENS 75D70646E

    SIEMENS

    75D70646E

    COIL W/SCREW TERM. CL 42 550/600V HZ
    ✓ IN STOCK!
    $52.68 Buy Surplus As Low As $40.04
    $40.04
    SMC AMP420-06B

    SMC

    AMP420-06B

    EXHAUST CLEANER, AMP SERIES, 1/2 STANDARD BODY SIZE, 2-STAGE, RC THREAD TYPE, 3/4 PORT SIZE, WITH BRACKET, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $431.00 Buy Surplus As Low As $328.00
    $328.00
    Repair Yours $300.00
    SMC AMP320-04B

    SMC

    AMP320-04B

    EXHAUST CLEANER, AMP SERIES, 3/8 STANDARD BODY SIZE, 2-STAGE, RC THREAD TYPE, 1/2 PORT SIZE, WITH BRACKET, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $287.00 Buy Surplus As Low As $190.00
    $190.00
    Repair Yours $300.00
    SMC AMP220-N02B-T

    SMC

    AMP220-N02B-T

    EXHAUST CLEANER, AMP SERIES, 1/4 STANDARD BODY SIZE, 2-STAGE, NPT THREAD TYPE, 1/4 PORT SIZE, WITH BRACKET, WITH ELEMENT SERVICE INDICATOR, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $296.00 Buy Surplus As Low As $225.00
    $225.00
    Repair Yours $300.00
    SMC AMC910-20D

    SMC

    AMC910-20D

    AMC EXHAUST CLEANER, 2 INCH STANDARD (PT), HEX HEAD, THREADED PORT
    ✓ IN STOCK!
    $250.00 Buy Surplus As Low As $190.00
    $190.00
    Repair Yours $300.00
    RITTAL 3286510

    RITTAL

    3286510

    METAL FILTER, WASHABLE, ALUMINUM, FITS 3273/3382/3383/3384/3385/3359/3318.600/3318.610/3319.600/3319.610/3334.660
    ✓ IN STOCK!
    $397.00 Buy New $397.00
    $232.29
    RITTAL 3286410

    RITTAL

    3286410

    METAL FILTER, 344(13.5) X 268(10.6) X 10(0.4), WASHABLE
    ✓ IN STOCK!
    $324.00 Buy New $324.00
    $247.00
    RITTAL 3127100

    RITTAL

    3127100

    A-A HEX 30 W-C 230V 50-60HZ TYPE 12, SIDEMTG, RAL 7035, STEEL
    ✓ IN STOCK!
    $2,697.00 Buy New $2,697.00
    $1,781.00
    ASEA BROWN BOVERI QT-20

    ASEA BROWN BOVERI

    QT-20

    FLEX DUCT 20MMX20MM
    ✓ IN STOCK!
    $15.00 Buy Surplus As Low As $8.90
    $8.90
    HONEYWELL H49B-1017

    HONEYWELL

    H49B-1017

    HUMIDIFIER CONTROLLER SAIL SWITCH,120/240VAC, 2.2/15AMP, RANGE 15-50 PERCENT
    ✓ IN STOCK!
    $163.62 Buy Surplus As Low As $69.27
    $69.27
    UNITED TECHNOLOGIES CESO121319-01

    UNITED TECHNOLOGIES

    CARRIER

    CESO121319-01

    DISCONTINUED BY MANUFACTURER, STARTER MANAGEMENT MODULE, CLASS 2, 22-30 VAC, 50/60HZ, 20VA
    ✓ IN STOCK!
    Buy Surplus As Low As $2,472.28
    $2,472.28
    Repair Yours $2,100.00
    HONEYWELL W8150A1001

    HONEYWELL

    RESIDEO

    W8150A1001

    FRESH AIR VENTILATION CONTROL, 20-30 VAC, 60 HZ, 10 MA, 4-3/16 X 5-3/4 INCH
    ✓ IN STOCK!
    $175.00 Buy Surplus As Low As $119.70
    $119.70
    UNITED TECHNOLOGIES LA660002

    UNITED TECHNOLOGIES

    CARRIER

    LA660002

    FACTORY AUTHORIZED PARTS™ - LA660002 INDUCER FAN KIT
    ✓ IN STOCK!
    $44.00 Buy Surplus As Low As $34.00
    $34.00
    JOHNSON CONTROLS VA-7010-8001

    JOHNSON CONTROLS

    VA-7010-8001

    VALVE ACTUATOR, 10 SEC, 2 POSITION, 24 VAC
    ✓ IN STOCK!
    $113.20 Buy Surplus As Low As $86.03
    $86.03
    Repair Yours $300.00
    LENNOX 18G89

    LENNOX

    18G89

    FLAME SENSOR
    ✓ IN STOCK!
    $21.00 Buy Surplus As Low As $14.00
    $14.00
    UNITED TECHNOLOGIES CESO11006301

    UNITED TECHNOLOGIES

    CARRIER

    CESO11006301

    HEAT PUMP DEFROST TIMER PC BOARD 18-30VAC 50/60HZ
    ✓ IN STOCK!
    $115.20 Buy Surplus As Low As $28.57
    $28.57
    Repair Yours $300.00
    HONEYWELL ML7475A1004

    HONEYWELL

    ML7475A1004

    DISCONTINUED BY MANUFACTURER, ROTARY ACTUATOR, SPRING RETURN, 105 LB-IN TORQUE, DIRECT COUPLED
    ✓ IN STOCK!
    Buy Surplus As Low As $321.32
    $321.32
    Repair Yours $300.00
    HONEYWELL ML7474A-1007

    HONEYWELL

    ML7474A-1007

    DISCONTINUED BY MANUFACTURER, ACTUATOR, DIRECT COUPLED, 132 IN LB TORQUE
    ✓ IN STOCK!
    Buy Surplus As Low As $71.58
    $71.58
    Repair Yours $300.00
    STEVECO 90-295

    STEVECO

    90-295

    RELAY, 208/240 VAC, 50/60 HZ, 8FLA, FOR HVAC FAN
    ✓ IN STOCK!
    $13.22 Buy Surplus As Low As $11.02
    $11.02
    SMC AMC310-N03

    SMC

    AMC310-N03

    AMC EXHAUST CLEANER, AMC 3/8INCH STANDARD (NPT), EXHAUST CLEANER 3/8 NPT, MUFFLER
    ✓ IN STOCK!
    $60.00 Buy Surplus As Low As $46.00
    $46.00
    Repair Yours $300.00
    HONEYWELL Q7750A1005

    HONEYWELL

    Q7750A1005

    DISCONTINUED BY MANUFACTURER, ZONE MANAGER, EXCEL 10, 24 VAC, 50/60 HZ, TWISTED PAIR TOPOLOGY (TPT) E-BUS TRANSCEIVER
    ✓ IN STOCK!
    Buy Surplus As Low As $1,567.50
    $1,567.50
    Repair Yours $1,350.00
    HONEYWELL 14507330-004

    HONEYWELL

    14507330-004

    DISCONTINUED BY MANUFACTURER, 16 INCH RIBBON BUS CONNECTOR CABLE FOR XL500 CONTROLLER BASES
    ✓ IN STOCK!
    Buy Surplus As Low As $36.75
    $36.75
    SIEMENS 549-407

    SIEMENS

    STAEFA CONTROL SYS

    549-407

    POWER MODULAR EQUIPMENT CONTROLLER
    ✓ IN STOCK!
    Buy Surplus As Low As $3,798.21
    $3,798.21
    Repair Yours $3,726.38
    JOHNSON CONTROLS AS-UNT121-1

    JOHNSON CONTROLS

    METASYS

    AS-UNT121-1

    DISCONTINUED BY MANUFACTURER, UNT111 CONTROLLER, WITH HEATER, UNITARY, 0-10 VDC, 2 KOHM, -40/140 DEG F
    ✓ IN STOCK!
    Buy Surplus As Low As $607.70
    $607.70
    Repair Yours $490.00
    RITTAL 9969937

    RITTAL

    9969937

    SPLIT REAR DOOR FAN, 210 CFM FOR 24 INCH WIDE CABINET, 600-1000 WIDE RACKS, 115 VOLTS, SAND TEXTURE BLACK, 10 FT NEMA 5-15 POWER CORD
    ✓ IN STOCK!
    $282.00 Buy New $282.00
    $215.00
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