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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 251-300 of 856.
    HONEYWELL ML6425B-3013

    HONEYWELL

    ML6425B-3013

    ACTUATOR, SPRING RETURN, 24 VAC, 135 LBF STEM FORCE, 3/4 INCH STROKE, SPDT, FLOATING, TWO POSITION, 12 SECOND SPRING RETURN TIMING, MANUAL OVERRIDE WINDING, 14-122 TEMP RANGE, 5-95% RH OPERA ...
    ✓ IN STOCK!
    $1,245.45 Buy Surplus As Low As $946.54
    $946.54
    Repair Yours $399.23
    HONEYWELL ML6421A1017

    HONEYWELL

    ML6421A1017

    24V VALVE MOTOR DIRECT MOUNT FLOATING/2POS, NSR. ACTUATOR CORELLA US VERS.1800N GSA GS-07F-9515S
    ✓ IN STOCK!
    $1,056.33 Buy Surplus As Low As $633.80
    $633.80
    Repair Yours $371.00
    HONEYWELL 221729A

    HONEYWELL

    221729A

    DUST COVER, 7800 SERIES, BURNER CONTROL, PROTECTIVE COVER FOR CONFIGURATION JUMPERS AND PLUG-IN PURGE TIMERS, FOR RM MODULES
    ✓ IN STOCK!
    $33.00 Buy Surplus As Low As $8.78
    $8.78
    HONEYWELL 205846

    HONEYWELL

    205846

    CRANK ARM, FOR USE WITH ACTUATORS AND DAMPERS, 300 IN-LB TORQUE
    ✓ IN STOCK!
    $13.00 Buy Surplus As Low As $7.56
    $7.56
    DELTECH KC13

    DELTECH

    KC13

    KC SERIES FILTER, FILTER ADSORPTION, FLOW AT 100 PSIG (SCFM): 50, REPLACEMENT CARTRIDGE: KC13E, CONNECTIONS (IN. NPT): INLET 1 INCH, OUTLET 1 INCH, DRAIN 1/4 INCH, MAX PRESSURE: 150 PSIG, MA ...
    ✓ IN STOCK!
    $500.07 Buy Surplus As Low As $222.42
    $222.42
    Repair Yours $300.00
    JOHNSON CONTROLS R-3030-1

    JOHNSON CONTROLS

    R-3030-1

    DISCONTINUED BY MANUFACTURER, REVERSING RELAY, 1:1 RATIO, 0-25 MAX PRESSURE, DIE CAST ZINC AND DURO PLASTIC MATERIAL
    ✓ IN STOCK!
    Buy Surplus As Low As $374.09
    $374.09
    JOHNSON CONTROLS H-4100-201

    JOHNSON CONTROLS

    H-4100-201

    DISCONTINUED BY MANUFACTURER, HUMIDSTAT, DIRECT ACTING
    ✓ IN STOCK!
    Buy Surplus As Low As $110.10
    $110.10
    Repair Yours $300.00
    ACI ADVANCE CONTROLS INC A/RH3-R

    ACI ADVANCE CONTROLS INC

    A/RH3-R

    HUMIDITY TRANSMITTER, +/-3PERCENT ACCURACY
    ✓ IN STOCK!
    $265.00 Buy Surplus As Low As $111.07
    $111.07
    Repair Yours $300.00
    WATSON MCDANIEL WAV2003-12-C

    WATSON MCDANIEL

    WAV2003-12-C

    AIR VENT 1/2INCH
    ✓ IN STOCK!
    $66.76 Buy Surplus As Low As $55.63
    $55.63
    Repair Yours $300.00
    ESSEX 90-295

    ESSEX

    90-295

    DISCONTINUED BY MANUFACTURER, RELAY ,5 BLABE ,125/250VAC, SPDT, 208/240VAC COIL,STEVECO 90-295 RELAY RBM 84 WHITE RODGERS 84-20306-301
    ✓ IN STOCK!
    Buy Surplus As Low As $53.85
    $53.85
    BOSCH R480061921

    BOSCH

    R480061921

    168-DA-080-0150-DSSWS0S
    ✓ IN STOCK!
    $499.00 Buy Surplus As Low As $330.00
    $330.00
    Repair Yours $300.00
    SIEMENS 192-505

    SIEMENS

    SIEMENS INDUSTRY

    192-505

    POWERS CONTROLS, THERMOSTAT ACCESS TUBING KIT, (10 PACK)
    ✓ IN STOCK!
    $197.50 Buy New $197.50
    $150.10
    RITTAL 3328500

    RITTAL

    3328500

    (SK 3328.500), COOLING UNIT, TOPTHERM BLUE E, 8735 BTU, 230 VAC, 50/60 HZ, UL TYPE 12, WALL MOUNTING, COMFORT CONTROLLER, RAL 7035, NANOCOATED CONDENSER
    ✓ IN STOCK!
    $5,709.00 Buy New $5,709.00
    $3,768.00
    RITTAL 3325.207

    RITTAL

    3325.207

    DISCONTINUED BY MANUFACTURER, OUTLET FILTER, FOR 3325XXX, RAL 7035, OUTLET FILTER INCLUDES MAT, 10.04"H X 10.04"W X 1.18"D
    ✓ IN STOCK!
    Buy Surplus As Low As $132.00
    $132.00
    RITTAL 3382500

    RITTAL

    3382500

    COOLING UNIT,AC 2115BTU, 230V, 50-60 HZ, TYPE12 STEEL ROOFMTG, COMFORT CONTROL, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
    ✓ IN STOCK!
    $4,398.00 Buy New $4,398.00
    $2,444.04
    RITTAL 3366100

    RITTAL

    3366100

    DISCONTINUED BY MANUFACTURER, COOLING UNIT, WITH BASIC CONTROLLER, 230VAC (50/60HZ), 7.1-7.3AMP, 20-55 C OPERATING TEMP RANGE, 30-55 C SETTING RANGE, 910M3/H EXTERNAL CIRCUIT AIR FLOW, 860M3 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $3,269.00
    $3,269.00
    RITTAL 3341024

    RITTAL

    3341024

    19" FAN TRAY, RACKMOUNT, 3 FANS, 24VDC, 0.74 AMP, PRE-FUSE T6A, 51 DB NOISE LEVEL
    ✓ IN STOCK!
    $1,641.34 Buy New $1,641.34
    $1,367.78
    HONEYWELL F76S1015

    HONEYWELL

    RESIDEO

    F76S1015

    WATER FILTER, 100 MICROMETERS SCREEN SIZE, 3/4 INCH PIP SIZE, 8.4CV CAPACITY, 230 PSI MAX PRESSURE, WITH GAUGE
    ✓ IN STOCK!
    $782.91 Buy Surplus As Low As $469.75
    $469.75
    HONEYWELL DM7600B1012

    HONEYWELL

    DM7600B1012

    8"ZONE DAMP,24V,W/ML6161,SPDT
    ✓ IN STOCK!
    $189.93 Buy Surplus As Low As $72.70
    $72.70
    HONEYWELL D690A1002

    HONEYWELL

    D690A1002

    DISCONTINUED BY MANUFACTURER, ZONE DAMPER, 6" ROUND, 90 DEGREE TRAVEL, 2500 FEET/MINUTE MAXIMUM APPROACH VELOCITY
    ✓ IN STOCK!
    Buy Surplus As Low As $88.65
    $88.65
    HONEYWELL 14004625-017

    HONEYWELL

    14004625-017

    DISC 200/337F V5011CG 100CV
    ✓ IN STOCK!
    $170.00 Buy Surplus As Low As $102.00
    $102.00
    HONEYWELL 14004401-002

    HONEYWELL

    14004401-002

    CONVERTASTAT WALL PLATE, BLACK
    ✓ IN STOCK!
    $32.63 Buy Surplus As Low As $21.54
    $21.54
    HONEYWELL 14004211-001

    HONEYWELL

    14004211-001

    FEEDBACK SPRING KIT, FOR 8" AND 13" MP953E SERIES PNEUMATIC VALVE ACTUATORS
    ✓ IN STOCK!
    $93.60 Buy Surplus As Low As $71.14
    $71.14
    HONEYWELL 14002040-002

    HONEYWELL

    14002040-002

    DIAPHRAGM 1X6 W/1.125 HOLE FOR MP953D ACT.RA REPLCS. 312204
    ✓ IN STOCK!
    $93.45 Buy Surplus As Low As $26.84
    $26.84
    HONEYWELL MS7520H2208

    HONEYWELL

    MS7520H2208

    DAMPER ACTUATOR, TWO POSITION, 24 VAC, 50/60 HZ, 175 LB-IN TORQUE, 16 VA DRIVING, SPST, 2 SPDT AUX SWITCH
    ✓ IN STOCK!
    $672.97 Buy Surplus As Low As $403.78
    $403.78
    Repair Yours $335.14
    HONEYWELL MS4120A1209

    HONEYWELL

    MS4120A1209

    HVAC ACTUATOR, DAMPER AND VALVE, SPRING RETURN, ON/OFF SIGNAL TYPE, 175 IN-LB TORQUE, 100-250 VAC, SPDT CONTACT, IP54, W/ 3 MM CRANK, MOUNTING BRACKET, SELF-CENTERING SHAFT ADAPTER
    ✓ IN STOCK!
    $846.00 Buy Surplus As Low As $425.00
    $425.00
    Repair Yours $353.00
    HONEYWELL MP909E-1463

    HONEYWELL

    MP909E-1463

    DAMPER ACTUATOR, MEDIUM FORCE,FOR VARIABLE VOLUME UNITS, 5-10PSI, # 4"STRK
    ✓ IN STOCK!
    $538.17 Buy Surplus As Low As $322.90
    $322.90
    Repair Yours $300.00
    HONEYWELL MP909D 1441

    HONEYWELL

    MP909D 1441

    LOW FORCE DAMPER ACTUATOR W/ SPRING RETURN ,FOR VARIABLE VOLUME TERMINAL UNITS ,(5 TO 10 PSI), ACTUATOR, 3" STROKE, 5-10#
    ✓ IN STOCK!
    $250.63 Buy Surplus As Low As $190.48
    $190.48
    Repair Yours $300.00
    HONEYWELL MN7234A2008

    HONEYWELL

    MN7234A2008

    DAMPER ACTUATOR, 34 NM / 300 LB-IN, 24 V AC/DC, 8 VA / 8 W, IP54, 50/60 HZ, 95 SECOND DRIVE TIME
    ✓ IN STOCK!
    $773.99 Buy Surplus As Low As $464.39
    $464.39
    Repair Yours $362.00
    HONEYWELL MN7220-A2007

    HONEYWELL

    MN7220-A2007

    DAMPER ACTUATOR, 24VAC/DC, 177LB-IN, NON-SPRING RETURN, 50/60HZ, IP54, 6W, 6VA, 20NM, 95SEC
    ✓ IN STOCK!
    $444.00 Buy Surplus As Low As $246.13
    $246.13
    Repair Yours $300.00
    HONEYWELL MN6105A1011

    HONEYWELL

    MN6105A1011

    ACTUATOR, 2-POSITION, FLOATING, NON-SPRING RETURN, TRI-STATE CONTROL, 5.0 VA, 24 VAC/DC, 50/60 HZ, ADD ON SWITCH NOT INDLUDED
    ✓ IN STOCK!
    $190.49 Buy Surplus As Low As $114.30
    $114.30
    Repair Yours $300.00
    HONEYWELL M7284C1083

    HONEYWELL

    M7284C1083

    ACTUATOR, MODUTROL IV MOTOR, NON-SPRING RETURN, FOOT MOUNTED, 4-20 MA MODULATING CONTROL SIGNAL, 90 DEGREE STROKE, 30 SECONDS TIMING, 17 NM / 150 LB-IN TORQUE RATING, 15 VA, 24 / 120 / 230 V ...
    ✓ IN STOCK!
    $2,086.00 Buy Surplus As Low As $1,130.85
    $1,130.85
    Repair Yours $894.00
    HONEYWELL 309292

    HONEYWELL

    309292

    5" NEOPRENE DIAPHRAGM FOR MP516 ALSO FOR 5" MP953 REPLACES 310673
    ✓ IN STOCK!
    $59.93 Buy Surplus As Low As $39.55
    $39.55
    GRAINGER 2E462

    GRAINGER

    DAYTON

    2E462

    SWITCH, AIR SENSING, MULTI PURPOSE, SPDT, 300 VA PILOT DUTY, -40-+180 DEG F, 1/4" OUTER DIAMETER TUBING NUTS
    ✓ IN STOCK!
    $88.74 Buy Surplus As Low As $43.36
    $43.36
    ALERTON VLC-651R

    ALERTON

    VLC-651R

    DISCONTINUED BY MANUFACTURER, FIELD CONTROLLER MODULE, 6 IN / 6 OUT, BACTALK BACNET
    ✓ IN STOCK!
    Buy Surplus As Low As $592.59
    $592.59
    Repair Yours $498.00
    GENERAL ELECTRIC 3ARR3FJ4EM2

    GENERAL ELECTRIC

    3ARR3FJ4EM2

    DISCONTINUED BY MANUFACTURER, RELAY, 35 AMP, SINGLE POLE / NORMALLY CLOSED, 60 HZ, SILVER CADMIUM OXIDE CONTACTS
    ✓ IN STOCK!
    Buy Surplus As Low As $55.47
    $55.47
    HONEYWELL W7751E-1007

    HONEYWELL

    W7751E-1007

    DISCONTINUED BY MANUFACTURER, CONTROLLER EXCEL 10
    ✓ IN STOCK!
    Buy Surplus As Low As $656.10
    $656.10
    Repair Yours $544.56
    DWYER A-251

    DWYER

    A-251

    PRESSURE SNUBBER,BRASS,14 MALEFEMALE BSPP ROHS COMPLIANT: NO , A-251
    ✓ IN STOCK!
    $33.00 Buy New $33.00
    $20.00
    STEVECO 90-295Q

    STEVECO

    90-295Q

    RELAY, 208/240VAC COIL 56/60HZ,, 250VAC
    ✓ IN STOCK!
    $30.60 Buy Surplus As Low As $11.86
    $11.86
    RITTAL 3385.540

    RITTAL

    3385.540

    COOLING UNIT, TOPTHERM BLUE E, ENERGY-EFFICIENT, ROOF-MOUNTED, WITH INTEGRAL E-COMFORT CONTROLLER, RINANO COATING ON CONDENSER, ELECTRIC CONDENSATE EVAPORATION AS STANDARD, SHEET STEEL, 400 ...
    ✓ IN STOCK!
    $8,260.00 Buy New $8,260.00
    $3,108.89
    RITTAL 3164230

    RITTAL

    3164230

    ROOF MOUNTED FAN, 0.3-0.35AMP, 230V, 50/60HZ, 1500 M³/H AIR FLOW, RADIAL, 511X227X511MM, WITHOUT ROOF PLATE
    ✓ IN STOCK!
    $2,580.00 Buy New $2,580.00
    $1,961.00
    Repair Yours $1,285.00
    RITTAL 9764012

    RITTAL

    9764012

    DISCONTINUED BY MANUFACTURER, HEAT EXCHANGER AIR/AIR, RATED VOLTAGE 40-56TEMP -33/+65, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $7,637.00
    $7,637.00
    RITTAL 3216480

    RITTAL

    3216480

    AIR-WATER HEAT EXCHANGER, WALL-MOUNTED, 15355/23885 BTU PER HOUR, 400-480 VAC, 50-60 HZ, TYPE12, STEEL, 143.5-145 PSI
    ✓ IN STOCK!
    $11,267.00 Buy New $11,267.00
    $7,437.00
    ALERTON TUX-784ST

    ALERTON

    TUX-784ST

    DISCONTINUED BY MANUFACTURER, HVAC CONTROLLER BOARD
    ✓ IN STOCK!
    Buy Surplus As Low As $404.65
    $404.65
    Repair Yours $330.00
    SIEMENS LGB22.330A27

    SIEMENS

    LGB22.330A27

    DISCONTINUED BY MANUFACTURER, GAS BURNER, CONTROL BOX, 220-240 VAC, 50/60 HZ, 3 VA
    ✓ IN STOCK!
    Buy Surplus As Low As $316.13
    $316.13
    KMC CONTROLS KMD-7302

    KMC CONTROLS

    KMD-7302

    DISCONTINUED BY MANUFACTURER, DIRECT DIGITAL CONTROLLER, I UNIVERSAL OUTPUT, 4 UNIVERSAL INPUTS, PROGRAMMABLE, CONNECTIVITY: MS/TP, ECONOMIZER CONTROL: YES, SUPPORTED PROTOCOLS: KMDIGITAL, 5 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $230.87
    $230.87
    Repair Yours $300.00
    JOHNSON CONTROLS TE-6001-2

    JOHNSON CONTROLS

    TE-6001-2

    HOUSING, FOR OUTSIDE AIR TEMP SENSING ELEMENT
    ✓ IN STOCK!
    $60.46 Buy Surplus As Low As $38.88
    $38.88
    SIEMENS 587-160

    SIEMENS

    STAEFA CONTROL SYS

    587-160

    WIRING BASE FOR PREDATOR
    ✓ IN STOCK!
    $37.60 Buy Surplus As Low As $13.32
    $13.32
    Repair Yours $300.00
    HONEYWELL 84-20303-301B

    HONEYWELL

    84-20303-301B

    RELAY HVAC COIL 240VAC 50/60HZ
    ✓ IN STOCK!
    $26.90 Buy Surplus As Low As $11.65
    $11.65
    RITTAL 3286.400

    RITTAL

    3286.400

    FOAM FILTER MAT, FOR WALL-MOUNTED COOLING UNIT 3304/05/28/29/32/66, 344MM (13.5IN) WIDTH, 268MM (10.6IN) HEIGHT, 10 MM (0.4 IN) DEPTH, TEMPERATURE RESISTANT FROM -40 TO +80 DEGREES C, (PRICE ...
    ✓ IN STOCK!
    $79.00 Buy New $79.00
    $61.00
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