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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 101-150 of 853.
    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!
    $2,326.26 Buy Surplus As Low As $1,395.76
    $1,395.76
    Repair Yours $790.00
    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!
    $1,408.00 Buy Surplus As Low As $831.61
    $831.61
    Repair Yours $550.00
    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!
    $1,981.63 Buy Surplus As Low As $1,557.01
    $1,557.01
    Repair Yours $946.00
    HONEYWELL Q5001D1000

    HONEYWELL

    Q5001D1000

    VALVE BRACKET AND LINKAGE, 80/160 LBS SELECTABLE STEM FORCE, 3/ 4INCH LIFT, FOR USE W/ MODUTROL MOTORS, USE IF MOTOR TORQUE LESS THAN 50 LB, REPLACES Q618A1032
    ✓ IN STOCK!
    $1,496.64 Buy Surplus As Low As $1,194.31
    $1,194.31
    HONEYWELL ML7984A-3001

    HONEYWELL

    ML7984A-3001

    DISCONTINUED BY MANUFACTURER, VALVE ACTUATORD COUPLED, DIR/REV ACTING STROKE, 24VAC/28VDC, 0-55C, 19MM/3/4IN
    ✓ IN STOCK!
    Buy Surplus As Low As $774.67
    $774.67
    Repair Yours $648.00
    JOHNSON CONTROLS T-5800-3

    JOHNSON CONTROLS

    T-5800-3

    PNEUMATIC RECEIVER CONTROLLER, DUAL INPUT, PROPORTIONAL, DIRECT OR REVERSE ACTING WITH DIRECT OR REVERSE READJUSTMENT ( FIELD SELECTABLE ), GAIN: ADJUSTABLE FROM 0.5:1 TO 15:1 ( FACTORY SET ...
    ✓ IN STOCK!
    $2,562.00 Buy New $2,562.00
    $1,322.94
    Repair Yours $1,318.00
    HONEYWELL RP920B-1031

    HONEYWELL

    RP920B-1031

    PROPORTIONAL PNEUMATIC CONTROLLER, 17-30 PSI OPERATING PRESSURE, 3-15 PSI DUAL INPUT SIGNAL, 40-130 F TEMPERATURE RATING
    ✓ IN STOCK!
    $1,055.71 Buy Surplus As Low As $633.43
    $633.43
    Repair Yours $300.00
    HONEYWELL RM7895D1011

    HONEYWELL

    RM7895D1011

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, INTERRUPTED PILOT TYPE, DELAYED MAIN VALVE, DYNAMIC AIRFLOW CHECK, SELECTABLE INTERLOCKS, 10 SECOND MAIN FLAME ESTABLISHING PERIOD, 4 OR 10 SE ...
    ✓ IN STOCK!
    $1,486.09 Buy Surplus As Low As $891.65
    $891.65
    Repair Yours $654.61
    HONEYWELL RM7895C1020

    HONEYWELL

    RM7895C1020

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, INTERRUPTED PILOT TYPE, DELAYED MAIN VALVE, SPECIAL SEQUENCE EARLY SPARK TERMINATION, SELECTABLE INTERLOCKS, 10 SECOND MAIN FLAME ESTABLISHING ...
    ✓ IN STOCK!
    $1,897.28 Buy Surplus As Low As $1,138.37
    $1,138.37
    Repair Yours $690.00
    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!
    $1,598.51 Buy Surplus As Low As $959.10
    $959.10
    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 RM7885A1015

    HONEYWELL

    RM7885A1015

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, DUST COVER, MANUAL START INDUSTRIAL PRIMARY CONTROL, INTERMITTENT PILOT TYPE, INTERMITTENT MAIN FLAME ESTABLISHING PERIOD, 15 MINUTE PILOT FLA ...
    ✓ IN STOCK!
    $1,089.24 Buy Surplus As Low As $594.13
    $594.13
    Repair Yours $390.00
    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
    SMC HAW7-06D

    SMC

    HAW7-06D

    AFTER COOLER , HAW7-06D
    ✓ IN STOCK!
    $1,250.00 Buy Surplus As Low As $661.00
    $661.00
    UNITED TECHNOLOGIES 33CSZC-01

    UNITED TECHNOLOGIES

    CARRIER

    33CSZC-01

    DISCONTINUED BY MANUFACTURER, VVT ZONE CONTROLLER, W / O TIMECLOCK
    ✓ IN STOCK!
    Buy Surplus As Low As $788.55
    $788.55
    Repair Yours $640.00
    SIEMENS LFL1.335-110V

    SIEMENS

    LANDIS & GYR

    LFL1.335-110V

    GAS BURNER CONTROL, 5 AMP, 120 VAC, 50/60 HZ, PRE PURGE TIME: 31 SECONDS, FLAME FAILURE RESPONSE TIME: 1 SECOND
    ✓ IN STOCK!
    $2,121.00 Buy Surplus As Low As $1,086.00
    $1,086.00
    Repair Yours $902.00
    AUTOMATED LOGIC SE6104

    AUTOMATED LOGIC

    SE6104

    DISCONTINUED BY MANUFACTURER, CONTROL MODULE, 24 VAC, CONTROLS UP TO 20 POINTS
    ✓ IN STOCK!
    Buy Surplus As Low As $1,784.11
    $1,784.11
    Repair Yours $1,050.00
    AUTOMATED LOGIC M8102

    AUTOMATED LOGIC

    M8102

    DISCONTINUED BY MANUFACTURER, CONTROL MODULE 10INPUT 10OUTPUT
    ✓ IN STOCK!
    Buy Surplus As Low As $2,215.95
    $2,215.95
    Repair Yours $1,900.00
    HONEYWELL M7284A1004

    HONEYWELL

    M7284A1004

    ACTUATOR, MODUTROL IV MOTOR, NON-SPRING RETURN, FOOT MOUNTED, 4-20 MA MODULATING CONTROL SIGNAL, 90 DEGREE STROKE, 30-60 SECONDS TIMING, 17 NM / 150 LB-IN TORQUE RATING, 15 VA, 120 VAC, 50/6 ...
    ✓ IN STOCK!
    $1,999.20 Buy Surplus As Low As $946.63
    $946.63
    Repair Yours $344.71
    HONEYWELL RM7890B1014

    HONEYWELL

    RM7890B1014

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, INTERMITTENT PILOT TYPE, INTERMITTENT MAIN FLAME ESTABLISHING PERIOD, 4 OR 10 SECOND PILOT FLAME ESTABLISHING PERIOD, 120 VAC, 50/60 HZ
    ✓ IN STOCK!
    $1,185.45 Buy Surplus As Low As $711.27
    $711.27
    Repair Yours $300.00
    HONEYWELL RM7890A1015

    HONEYWELL

    RM7890A1015

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, DUST COVER, INTERMITTENT PILOT, INTERMITTENT MAIN FLAME ESTABLISHING PERIOD, 4 OR 10 SECOND PILOT FLAME ESTABLISHING PERIOD, NONVOLATILE MEMOR ...
    ✓ IN STOCK!
    $1,433.12 Buy Surplus As Low As $818.93
    $818.93
    Repair Yours $431.00
    HONEYWELL RM7850A1001

    HONEYWELL

    RM7850A1001

    BURNER CONTROL MODULE, 7800 SERIES, RELAY MODULE, PROGRAMMING CONTROL MEETING EUROPEAN COMMUNITY TIMINGS, INTERRUPTED PILOT TYPE, LOCKOUT INTERLOCKS, USER SELECTABLE AIRFLOW CHECK, INTERMITT ...
    ✓ IN STOCK!
    $4,086.05 Buy Surplus As Low As $2,451.63
    $2,451.63
    Repair Yours $990.00
    HONEYWELL RM7840L1018

    HONEYWELL

    RM7840L1018

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, WITH VALVE PROVING, DUST COVER, 5 SECOND EARLY SPARK TERMINATION, 120 VAC, 50/60 HZ, REPLACES RM7840L1042
    ✓ IN STOCK!
    $5,800.81 Buy Surplus As Low As $4,143.44
    $4,143.44
    Repair Yours $990.00
    HONEYWELL RM7800G1018

    HONEYWELL

    RM7800G1018

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, KEYBOARD DISPLAY MODULE, PRE-IGNITION, RUNNING, LOW FIRE, 120 VAC, 50/60 HZ, 10 W
    ✓ IN STOCK!
    $6,950.05 Buy Surplus As Low As $4,170.03
    $4,170.03
    Repair Yours $1,650.00
    RITTAL 3383.110

    RITTAL

    3383.110

    DISCONTINUED BY MANUFACTURER, AIR CONDITIONING UNIT, 4460 BTU, 115 VAC, 50/60 HZ, TYPE 12 STEEL, ROOF MOUNT, BASIC CONTROL, RAL7035, NANOCOATED CONDENSOR
    ✓ IN STOCK!
    Buy Surplus As Low As $2,549.84
    $2,549.84
    RITTAL 3366140

    RITTAL

    3366140

    DISCONTINUED BY MANUFACTURER, COOLING UNIT, WITH BASIC CONTROLLER, 400VAC (3PH/50HZ), 460VAC (3PH/60HZ), SHEET STEEL CASE, 910/860M3/H (EXTERNAL/INTERNAL) AIR FLOW, NANOCOATED CONDENSER, R13 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $6,034.00
    $6,034.00
    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 3342500

    RITTAL

    3342500

    105MM FAN DEPTH 19IN RACKMOUNT FAN TRAY 3 FANS 24VDC 105MM FAN DEPTH
    ✓ IN STOCK!
    $2,716.00 Buy New $2,716.00
    $1,468.00
    RITTAL 3341024

    RITTAL

    3341024

    19" FAN TRAY, RACKMOUNT, 3 FANS, 24VDC, 0.74 AMP, PRE-FUSE T6A, 51 DB NOISE LEVEL
    ✓ IN STOCK!
    $2,455.00 Buy New $2,455.00
    $1,866.00
    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
    $3,264.33
    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 3149810

    RITTAL

    3149810

    PAGODA FAN 470CFM 115V STEEL RAL 7035 ROOFMTG, 50/60HZ
    ✓ IN STOCK!
    $864.00 Buy New $864.00
    $657.00
    Repair Yours $431.00
    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 7968035

    RITTAL

    7968035

    FILTER FAN PANEL 85CFM 220V FOR TS 600W X 800D RAL7035
    ✓ IN STOCK!
    $809.00 Buy New $809.00
    $534.00
    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!
    $11,718.00 Buy New $11,718.00
    $7,734.00
    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 $513.45
    $513.45
    Repair Yours $490.00
    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 $567.00
    $567.00
    Repair Yours $448.20
    HONEYWELL W7751B-2002

    HONEYWELL

    W7751B-2002

    DISCONTINUED BY MANUFACTURER, CONTROLLER BOARD, VAV II
    ✓ IN STOCK!
    Buy Surplus As Low As $607.81
    $607.81
    Repair Yours $600.00
    HONEYWELL M7284Q1082

    HONEYWELL

    M7284Q1082

    ACTUATOR, MODUTROL IV MOTOR, NON-SPRING RETURN, FOOT MOUNTED, 4-20 MA MODULATING CONTROL SIGNAL, 90 DEGREE STROKE, 30 SECONDS NOMINAL TIMING, 17 NM / 150 LB-IN TORQUE RATING, 15 VA, 24 / 120 ...
    ✓ IN STOCK!
    $835.80 Buy Surplus As Low As $529.44
    $529.44
    Repair Yours $404.00
    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!
    Buy Surplus As Low As $1,336.65
    $1,336.65
    Repair Yours $897.00
    AUTOMATED LOGIC ZN341V+

    AUTOMATED LOGIC

    ZN341V+

    DISCONTINUED BY MANUFACTURER, ZONE CONTROLLER, 0-10 VDC, HIGH SPEED 16-BIT MICROPROCESSOR WITH 1 MBYTE FLASH MEMORY AND 512 KBYTE OF RAM, BACNET SUPPORT
    ✓ IN STOCK!
    Buy Surplus As Low As $1,070.88
    $1,070.88
    Repair Yours $880.00
    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
    HONEYWELL W7100A1038

    HONEYWELL

    W7100A1038

    DISCONTINUED BY MANUFACTURER, CONTROLLER, MICROPROCESSOR BASED, DISCHARGE AIR CONTROL, 6 STAGE, 24 VAC, 40-90 DEGREES F
    ✓ IN STOCK!
    Buy Surplus As Low As $1,305.43
    $1,305.43
    Repair Yours $690.00
    HONEYWELL RA890F-1361

    HONEYWELL

    RA890F-1361

    DISCONTINUED BY MANUFACTURER, PROTECTORELAY, FLAME SAFETY , 240 VAC, FLAME CONTROL, 30 SECOND / 3 SECOND
    ✓ IN STOCK!
    $1,162.97 Buy Surplus As Low As $814.09
    $814.09
    Repair Yours $746.42
    HONEYWELL RA890F-1353

    HONEYWELL

    RA890F-1353

    DISCONTINUED BY MANUFACTURER, PROTECTOR RELAY, 240 V, 50/60 HZ, 30 SECONDS SAFETY SWITCH, 0.8 SECONDS FLAME RESPONSE
    ✓ IN STOCK!
    Buy Surplus As Low As $762.31
    $762.31
    Repair Yours $666.02
    HONEYWELL XL100B

    HONEYWELL

    XL100B

    DISCONTINUED BY MANUFACTURER, PROGRAMMABLE CONTROLLER, 24VAC, 40/60HZ, 18W
    ✓ IN STOCK!
    Buy Surplus As Low As $550.00
    $550.00
    Repair Yours $456.50
    HONEYWELL M9484F1031

    HONEYWELL

    M9484F1031

    PROPORTIONAL MOTOR, 24VAC, 135OHM INPUT SIGNAL, 150LB-IN TORQUE, 2 AUXILIARY SWITCHES, 30 SECOND TIMING FOR 90 DEGREE STROKE, 60 SECOND TIMING FOR 160 DEGREE STROKE, DOUBLE ENDED 3/8IN SHAFT ...
    ✓ IN STOCK!
    $1,977.26 Buy Surplus As Low As $1,186.36
    $1,186.36
    Repair Yours $890.00
    HONEYWELL RM7800M1011

    HONEYWELL

    RM7800M1011

    BURNER CONTROL UNIT, 7800 SERIES, RELAY MODULE, KEYBOARD DISPLAY MODULE, PRE-IGNITION, RUNNING, LOW FIRE, 120 VAC, 50/60 HZ, 10 W
    ✓ IN STOCK!
    $5,625.39 Buy Surplus As Low As $3,375.23
    $3,375.23
    Repair Yours $1,940.00
    HONEYWELL 14506344-001

    HONEYWELL

    14506344-001

    DISCONTINUED BY MANUFACTURER, PC BOARD, RS485 INTERFACE BOARD, INTELLIGENT DISPLAY, DNFS
    ✓ IN STOCK!
    Buy Surplus As Low As $576.00
    $576.00
    Repair Yours $600.00
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