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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.

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    Results 151-200 of 859.
    HONEYWELL M7284A1079

    HONEYWELL

    M7284A1079

    DISCONTINUED BY MANUFACTURER, ACTUATOR, MODUTROL IV MOTOR, NON-SPRING RETURN, FOOT MOUNTED, 2-10 VDC MODULATING CONTROL SIGNAL, 160 DEGREE STROKE, 30-60 SECONDS TIMING, 17 NM / 150 LB-IN TOR ...
    ✓ IN STOCK!
    $1,674.00 Buy Surplus As Low As $1,273.00
    $1,273.00
    Repair Yours $897.00
    KMC CONTROLS KMD-7001

    KMC CONTROLS

    KMD-7001

    DISCONTINUED BY MANUFACTURER, SINNGLE-DUCT DIRECT DIGITAL VAV, TERMINAL UNIT CONTROLLER, 3 UNIVERSAL INPUTS/OUTPUTS, DISCONTINUED 4/14/2017, 24 VOLT, 50/60 HERTZ, DIRECT MOUNT, 95 DEGREE ROT ...
    ✓ IN STOCK!
    Buy Surplus As Low As $324.66
    $324.66
    Repair Yours $300.00
    HONEYWELL RM7890A1056

    HONEYWELL

    RM7890A1056

    RELAY MODULE, ON-OFF PRIMARY CONTROL, FOR USE WITH AUTOMATICALLY FIRED GAS, OIL, COAL OR COMBINATION FUEL SINGLE BURNER APPLICATIONS, 120VAC, INTERMITTENT PILOT, 4 OR 10 SEC PILOT FLAME ESTA ...
    ✓ IN STOCK!
    $1,073.04 Buy Surplus As Low As $643.82
    $643.82
    Repair Yours $523.75
    EMERSON SFD-13-S6-VV

    EMERSON

    ALCO CONTROLS

    SFD-13-S6-VV

    FILTER, DRYER SUCTION LINE, 3/4INCH IN/OUT ODF, 400 PSIG, 13 CU INCH
    ✓ IN STOCK!
    $181.00 Buy Surplus As Low As $124.20
    $124.20
    NEXEN GROUP 855300

    NEXEN GROUP

    HORTON MANUFACTURING

    855300

    A/C HOSE, 08.25 LONG
    ✓ IN STOCK!
    $37.00 Buy Surplus As Low As $21.94
    $21.94
    HONEYWELL XF524-A

    HONEYWELL

    XF524-A

    DISCONTINUED BY MANUFACTURER, OUTPUT MODULE, 6 POINT DIGITAL, 4 AMP, 240 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $41.28
    $41.28
    Repair Yours $300.00
    EMERSON D48

    EMERSON

    ALCO CONTROLS

    D48

    DISCONTINUED BY MANUFACTURER, FILTER-DRIER BLOCK, STANDARD CAPACITY, 5-1/2INCH
    ✓ IN STOCK!
    Buy Surplus As Low As $63.46
    $63.46
    HONEYWELL RM7895C1012

    HONEYWELL

    RM7895C1012

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, PREPURGE, INTERRUPTED PILOT, 10 SECOND MAIN FLAME ESTABLISHING PERIOD, 4 OR 10 SECOND PILOT FLAME ESTABLISHING PERIOD, DELAYED MAIN VALVE, SEL ...
    ✓ IN STOCK!
    $1,445.00 Buy Surplus As Low As $867.00
    $867.00
    Repair Yours $650.00
    HONEYWELL RM7895B1013

    HONEYWELL

    RM7895B1013

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, DUST COVER, INTERMITTENT PILOT TYPE, DYNAMIC AIRFLOW CHECK, SELECTABLE INTERLOCKS, INTERMITTENT MAIN FLAME ESTABLISHING PERIOD, 4 TO 10 SECOND ...
    ✓ IN STOCK!
    $1,327.69 Buy Surplus As Low As $796.61
    $796.61
    Repair Yours $562.00
    HONEYWELL RM7850A1019

    HONEYWELL

    RM7850A1019

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, PROGRAMMING CONTROL, INTERRUPTED PILOT TYPE, INTERMITTENT SECOND STAGE PILOT VALVE, USER SELECTABLE AIRFLOW CHECK, 15 SECOND POST PURGE, PRE-I ...
    ✓ IN STOCK!
    $3,740.39 Buy Surplus As Low As $2,244.23
    $2,244.23
    Repair Yours $1,350.00
    HONEYWELL M9185A1018

    HONEYWELL

    M9185A1018

    AC MOTOR, MODUTROL IV, PROPORTIONAL CONTROL, 24 VAC, 50/60 HZ, 135 OHM CONTROL, 60 LB-IN, SPRING RETURN, 30-60 SEC NOMINAL, QUICK CONNECT, 90-160 DEG STROKE, FOOT MOUNT, CW ROTATION, NEMA 3
    ✓ IN STOCK!
    $2,128.57 Buy Surplus As Low As $1,277.14
    $1,277.14
    Repair Yours $790.00
    HONEYWELL R7044B1016-3

    HONEYWELL

    R7044B1016-3

    DISCONTINUED BY MANUFACTURER, CONTROLLER MODULE, DELTANET, EXCEL PLUS, HVAC, 24 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,046.23
    $1,046.23
    Repair Yours $860.54
    HONEYWELL M4185B1009

    HONEYWELL

    M4185B1009

    HVAC ACTUATOR, MODUTROL IV MOTOR, SERIES 41, LINE VOLTAGE, 2 POSITION CONTROL, 120 VAC, 60 LB-IN, NORMALLY CLOSED, SPRING RETURN, DUAL-ENDED SHAFT, 1 AUX SWITCH
    ✓ IN STOCK!
    $1,634.00 Buy Surplus As Low As $1,100.17
    $1,100.17
    Repair Yours $946.00
    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 TP974A-2000-3

    HONEYWELL

    TP974A-2000-3

    DISCONTINUED BY MANUFACTURER, PNEUMATIC SPACE TEMPERATURE SENSOR, DIRECT ACTING, 50-100DEGREES FARENHEIT
    ✓ IN STOCK!
    Buy Surplus As Low As $96.00
    $96.00
    Repair Yours $300.00
    EATON CORPORATION CP01037

    EATON CORPORATION

    CUTLER HAMMER

    CP01037

    FAN UNIT SV9000
    ✓ IN STOCK!
    $2,104.47 Buy Surplus As Low As $842.40
    $842.40
    Repair Yours $622.65
    JOHNSON CONTROLS AS-UNT-111-1

    JOHNSON CONTROLS

    METASYS

    AS-UNT-111-1

    DISCONTINUED BY MANUFACTURER, CONTROLLER, UNITARY, LOW AMBIENT TEMPERATURE, 32-140 DEGREES F, 2 AMP, 24 VAC, 6 BINARY OUTPUT, 2 ANALOG OUTPUT, SPADE QUICK CONNECTOR
    ✓ IN STOCK!
    Buy Surplus As Low As $797.18
    $797.18
    Repair Yours $480.00
    SIEMENS 6ES59810FA41

    SIEMENS

    6ES59810FA41

    SIMATIC S5 DUST FILTER HOLDER
    ✓ IN STOCK!
    Buy Surplus As Low As $635.00
    $635.00
    SMC AMG-EL650

    SMC

    AMG-EL650

    WATER SEPARATOR, AMBIENT DRYER, REMOVES WATER VAPOR FROM AIR FLOW
    ✓ IN STOCK!
    $140.00 Buy Surplus As Low As $99.99
    $99.99
    SMC AMP420-N04B

    SMC

    AMP420-N04B

    EXHAUST CLEANER, AMP SERIES, 1/2 STANDARD BODY SIZE, 2-STAGE, NPT THREAD TYPE, 1/2 PORT SIZE, WITH BRACKET, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $431.00 Buy Surplus As Low As $301.98
    $301.98
    Repair Yours $300.00
    SMC AMP320-N03

    SMC

    AMP320-N03

    EXHAUST CLEANER, AMP SERIES, 3/8 STANDARD BODY SIZE, 2-STAGE, NPT THREAD TYPE, 3/8 PORT SIZE, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $260.00 Buy Surplus As Low As $159.25
    $159.25
    Repair Yours $300.00
    SMC AMP220-N02B

    SMC

    AMP220-N02B

    EXHAUST CLEANER, AMP SERIES, 1/4 STANDARD BODY SIZE, 2-STAGE, NPT THREAD TYPE, 1/4 PORT SIZE, WITH BRACKET, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $252.00 Buy Surplus As Low As $136.80
    $136.80
    Repair Yours $300.00
    SMC AMC610-N10

    SMC

    AMC610-N10

    AMC EXHAUST CLEANER, EFFECTIVE AREA MM2 165, MAX. AIR FLOWL/MIN 3, 5-80C, O.1MPA
    ✓ IN STOCK!
    $100.00 Buy Surplus As Low As $64.50
    $64.50
    Repair Yours $300.00
    SMC AMC320-03BD

    SMC

    AMC320-03BD

    AMC EXHAUST CLEANER, 3/8IN STANDARD PT, EXHAUST CLEANER 3/8 PT, MUFFLER
    ✓ IN STOCK!
    $50.00 Buy Surplus As Low As $18.56
    $18.56
    Repair Yours $300.00
    RITTAL 3175000

    RITTAL

    3175000

    FILTER HOLDER AND MAT FOR 3148 RAL 7035, FILTER HOLDER AND MAT FOR ROOF VENT
    ✓ IN STOCK!
    $155.00 Buy New $155.00
    $106.03
    UNITED TECHNOLOGIES LA-21RA-425

    UNITED TECHNOLOGIES

    CARRIER

    LA-21RA-425

    4 13/64"DIA 2 29/32W CW 1/4"
    ✓ IN STOCK!
    $63.00 Buy New $63.00
    $48.00
    Repair Yours $300.00
    JOHNSON CONTROLS AP-VMA1420-0

    JOHNSON CONTROLS

    METASYS

    AP-VMA1420-0

    DISCONTINUED BY MANUFACTURER, VARIABLE AIR VOLUME MODULAR ASSEMBLY, 1400 SERIES, VAV CONTROLLER, PRESSURE SENSOR, 24 VAC, CLASS 2, PROPORTIONAL, 30 SEC, 90 DEG ROTATION, (SUGGESTED REPLACEME ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,190.00
    $1,190.00
    Repair Yours $790.00
    RANCO V26-100

    RANCO

    V26-100

    DISCONTINUED BY MANUFACTURER, REVERSING VALVE, 4 WAY, 1/2IN TUBE SIZE, 0-690 PSIG
    ✓ IN STOCK!
    Buy Surplus As Low As $44.00
    $44.00
    JOHNSON CONTROLS P66AAB-1C

    JOHNSON CONTROLS

    PENN BASO

    P66AAB-1C

    CONDENSER FAN SPEED CONTROL, 190 - 250 PSI, 208/480VAC, 60HZ, 1PHASE, 60 INCH CAPILLARY , P66AAB-1C
    ✓ IN STOCK!
    $1,371.00 Buy Surplus As Low As $830.20
    $830.20
    JOHNSON CONTROLS V47AA-3C

    JOHNSON CONTROLS

    PENN BASO

    V47AA-3C

    PB IN. TEMP ACT MODULATING VALVE. TEMP WATER REG VALVE. 3/8IN. 75/135F CROSS AMBIENT IN.
    ✓ IN STOCK!
    $723.00 Buy Surplus As Low As $550.00
    $550.00
    HONEYWELL RP920B-1023

    HONEYWELL

    RP920B-1023

    PNEUMATIC CONTROLLER, DIRECT ACTING, DUAL SENSOR,18 PSI, 3-13 PSI OUTPUT PRESSURE RANGE, AIR CONNECTIONS: 5/32"X1/4" BARB, 3-15 PSI INPUT SIGNAL
    ✓ IN STOCK!
    $1,288.70 Buy Surplus As Low As $773.22
    $773.22
    Repair Yours $449.51
    HONEYWELL LP914A-1029

    HONEYWELL

    LP914A-1029

    WELL MOUNT, ROD AND TUBE PNUEMATIC, 15IN. TEMPERAUTRE SENSOR, RANGE 40-240F (5-115C)
    ✓ IN STOCK!
    $682.00 Buy Surplus As Low As $104.44
    $104.44
    GRAINGER 2E379

    GRAINGER

    DAYTON

    2E379

    PLASTIC UNIVERSAL THERMOSTAT GUARD, CLEAR
    ✓ IN STOCK!
    $38.22 Buy Surplus As Low As $15.06
    $15.06
    CORE COMPONENTS CVR21A1C-H

    CORE COMPONENTS

    CVR21A1C-H

    RELAY COIL CONTROL ISOLATED OUT 10-30VAC/DC/120VAC
    ✓ IN STOCK!
    $178.18 Buy Surplus As Low As $79.82
    $79.82
    Repair Yours $300.00
    CONTROL CONCEPTS I-202

    CONTROL CONCEPTS

    I-202

    FILTER 2 1/2AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $67.87
    $67.87
    Repair Yours $300.00
    SIEMENS 6RY1241-0BA00

    SIEMENS

    6RY1241-0BA00

    DISCONTINUED BY MANUFACTURER, DISCONTINUED BY MANFACTURER, FAN UNIT, BLOWER MODULE, REPLACMENT FOR 6QX5376
    ✓ IN STOCK!
    Buy Surplus As Low As $3,000.00
    $3,000.00
    Repair Yours $2,490.00
    SIEMENS 3RW3936-8A

    SIEMENS

    FURNAS ELECTRIC CO

    3RW3936-8A

    DISCONTINUED BY MANUFACTURER, FAN, FOR SIRIUS 2008 SERIES SOFT STARTER, TYPE 3RW30 3/3RW30.4, 24 VDC, 33 MA, 0.8 W
    ✓ IN STOCK!
    Buy Surplus As Low As $59.99
    $59.99
    SMC AMV3-10

    SMC

    AMV3-10

    OTHER SERIES, OTHER NO SIZE RATING, VACUUM EXHAUST CLEANER
    ✓ IN STOCK!
    $176.00 Buy Surplus As Low As $146.08
    $146.08
    Repair Yours $300.00
    SMC NAN203-N02

    SMC

    NAN203-N02

    DISCONTINUED BY MANUFACTURER, SILENCER, AN SERIES, WHITE, REPLACED BY AN15-N02
    ✓ IN STOCK!
    Buy Surplus As Low As $2.63
    $2.63
    SMC IDG1-N02-P

    SMC

    IDG1-N02-P

    MEMBRANE AIR DRYER, SERIES IDG, SIZE 1, 10 L/MIN FLOW RATE, -20 DEGREES C DEW POINT, 1/4 NPT PORT SIZE THREAD, WITH FITTING FOR PURGE AIR DISCHARGE
    ✓ IN STOCK!
    $279.00 Buy Surplus As Low As $177.16
    $177.16
    SMC NAMC520-N06

    SMC

    NAMC520-N06

    DISCONTINUED BY MANUFACTURER, EXHAUST CLEANER, 3/4" NPT, *LQA, W/ VIEW CAP, GREEN, REPLACED BY AMC520-N06
    ✓ IN STOCK!
    Buy Surplus As Low As $92.00
    $92.00
    SMC AMP320-N04

    SMC

    AMP320-N04

    EXHAUST CLEANER, AMP SERIES, 3/8 STANDARD BODY SIZE, 2-STAGE, NPT THREAD TYPE, 1/2 PORT SIZE, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $260.00 Buy Surplus As Low As $180.97
    $180.97
    Repair Yours $300.00
    SMC AMP320-N03B-T

    SMC

    AMP320-N03B-T

    EXHAUST CLEANER, AMP SERIES, 3/8 STANDARD BODY SIZE, 2 STAGE, 3/8 PORT SIZE, WITH BRACKET, WITH ELEMENT SERVICE INDICATOR, CLEAN ROOM APPLICATION
    ✓ IN STOCK!
    $330.00 Buy Surplus As Low As $185.50
    $185.50
    Repair Yours $300.00
    ALERTON MS-1010H-BT

    ALERTON

    MS-1010H-BT

    ONE-SPEED BACTALK MICROSET WALL SENSOR, WITH RH SENSOR, 10 KOHM AT 77 DEG-F, 1822 AWG, SHIELDED, TWO-CONDUCTOR
    ✓ IN STOCK!
    Buy Surplus As Low As $557.92
    $557.92
    DANFOSS 175Z0825

    DANFOSS

    175Z0825

    DISCONTINUED BY MANUFACTURER, VLT LC-FILTER, 200/400/500V, 7.8/7.2/6.3A
    ✓ IN STOCK!
    Buy Surplus As Low As $291.89
    $291.89
    Repair Yours $300.00
    HONEYWELL W7751H-2009

    HONEYWELL

    W7751H-2009

    DISCONTINUED BY MANUFACTURER, SMART VAV ACTUATOR, EXCEL 10, VARIABLE AIR VOLUME, 20-30 VAC, 6 VA, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $537.06
    $537.06
    Repair Yours $490.00
    LENNOX 58H66

    LENNOX

    58H66

    POTENTIAL RELAY
    ✓ IN STOCK!
    $82.67 Buy Surplus As Low As $49.60
    $49.60
    HONEYWELL W7752G-2000

    HONEYWELL

    W7752G-2000

    DISCONTINUED BY MANUFACTURER, FAN COIL UNIT CONTROLLER, POWER 96-126VAC, 30VA MAX, 50/60HZ, 3 HEAT/3 COOL, 2 PIPE/4 PIPE,
    ✓ IN STOCK!
    Buy Surplus As Low As $540.00
    $540.00
    Repair Yours $448.20
    UNITED TECHNOLOGIES CEAS420771-01

    UNITED TECHNOLOGIES

    CARRIER

    CEAS420771-01

    DISCONTINUED BY MANUFACTURER, CONTROL BOARD, 4 INPUT, 4 OUTPUT
    ✓ IN STOCK!
    Buy Surplus As Low As $450.61
    $450.61
    Repair Yours $370.30
    UNITED TECHNOLOGIES 32GB501074

    UNITED TECHNOLOGIES

    CARRIER

    32GB501074

    PROCESSOR BOARD, HVAC BOARD, RESISTIVE NETWORK, 30 GT CHILLER
    ✓ IN STOCK!
    $5,723.00 Buy New $5,723.00
    $3,019.90
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