Product Search

    SEARCH NOW FOR ALL YOUR RADWELL SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    HVAC / HVAC Control System Board

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

    Filter Results
    Results 1-50 of 911.
    JOHNSON CONTROLS S1-LC-ZCU400-0

    JOHNSON CONTROLS

    YORK

    S1-LC-ZCU400-0

    CCS VAV ZONE COORDINATOR (ZC), IP20 / CLASS 2, COLOR TOUCHSCREEN, USER INTERFACE, ETHERNET PORT / FOR WEB BROWSER ACCESS, 24 VAC MAX, WITH LCD DISPLAY, PLASTIC HOUSING / ABS+POLYCARBONATE UL ...
    ✓ IN STOCK!
    $2,931.84 Buy Surplus As Low As $2,228.20
    $2,228.20
    Repair Yours $1,460.06
    HONEYWELL XL2026B2A

    HONEYWELL

    XL2026B2A

    DISCONTINUED BY MANUFACTURER, BACNET HVAC CONTROLLER, W/HMI, 24VAC, 20PERCENT, 11VA/20-30VDC, 6W SUPPLY
    ✓ IN STOCK!
    Buy Surplus As Low As $1,520.00
    $1,520.00
    Repair Yours $996.00
    SIEMENS 544-120

    SIEMENS

    LANDIS & GYR

    544-120

    DISCONTINUED BY MANUFACTURER, I/O CARD, ANALOG, FOR POWERS SYSTEM 600 CONTROLLER
    ✓ IN STOCK!
    Buy Surplus As Low As $576.00
    $576.00
    Repair Yours $478.08
    HONEYWELL XD-505A

    HONEYWELL

    XD-505A

    DISCONTINUED BY MANUFACTURER, SUB-MODULE RETROFIT KIT, C-BUS INTERFACE, HVAC COMMUNICATION, 10KBIT, 9600 BAUD, FOR EXCEL 5000 CONTROLLER
    ✓ IN STOCK!
    Buy Surplus As Low As $1,570.75 $1,245.00
    $1,570.75 $1,245.00
    Repair Yours $1,303.72
    HONEYWELL XC-5010-B

    HONEYWELL

    XC-5010-B

    DISCONTINUED BY MANUFACTURER, COMPUTER MODULES, CARD DESIGN, INPUT POWER: 24 VAC, 47-63HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $750.00
    $750.00
    Repair Yours $520.00
    SOURCE 1 031-01267-001A

    SOURCE 1

    031-01267-001A

    DISCONTINUED BY MANUFACTURER, PC BOARD , CONTROL BOARD HVAC, YORK COLEMAN P031-01267-001 FURNACE CONTROL CIRCUIT BOARD SOURCE1 031-01267-001A =031-01267-001, DISCONTINUED JUL 09, 2021
    ✓ IN STOCK!
    Buy Surplus As Low As $237.00
    $237.00
    Repair Yours $200.00
    SIEMENS PTM6.2Q250-M

    SIEMENS

    LANDIS & GYR

    PTM6.2Q250-M

    DISCONTINUED BY MANUFACTURER, POINT TERMINATION MODULE, 2 POINT, DIGITAL, CONTACT CLOSURE, 240 VAC, 4A, LED INDICATION (ON/OFF), SUPERVISED HAND-OFF-AUTO SWITCH
    ✓ IN STOCK!
    Buy Surplus As Low As $243.00
    $243.00
    Repair Yours $200.00
    HONEYWELL 51198831-100

    HONEYWELL

    MEASUREX

    51198831-100

    DISCONTINUED BY MANUFACTURER, COMMUNICATION MODULE, TDC2000, PWA HIGHWAY
    ✓ IN STOCK!
    Buy Surplus As Low As $26,176.00
    $26,176.00
    Repair Yours $11,000.00
    JOHNSON CONTROLS XT-9100-8304

    JOHNSON CONTROLS

    METASYS

    XT-9100-8304

    DISCONTINUED BY MANUFACTURER, EXTENSION MODULE, MODEL XT9100, I/O 0-10 V, LED STATUS INDICATOR, 24 VAC SUPPLY, CONNECTS XP TO DX MODULE
    ✓ IN STOCK!
    Buy Surplus As Low As $200.00
    $200.00
    Repair Yours $200.00
    ASEA BROWN BOVERI ACQ580-01-017A-2

    ASEA BROWN BOVERI

    ACQ580-01-017A-2

    HVAC DRIVES, ACH580 SERIES, 50/60 HZ, 220-240 V
    ✓ IN STOCK!
    $2,451.21 Buy Surplus As Low As $1,470.73
    $1,470.73
    HONEYWELL 445100

    HONEYWELL

    LEEDS & NORTHRUP

    445100

    DISCONTINUED BY MANUFACTURER, OUTPUT BOARD
    ✓ IN STOCK!
    Buy Surplus As Low As $163.20
    $163.20
    Repair Yours $200.00
    ALERTON LSI-ARCNET

    ALERTON

    LSI-ARCNET

    ARCNET CARD
    ✓ IN STOCK!
    Buy Surplus As Low As $1,094.40
    $1,094.40
    Repair Yours $800.00
    JOHNSON CONTROLS YKHPC102-0

    JOHNSON CONTROLS

    YKHPC102-0

    CONTROLLER TRIATHLON HEAT PUMP OEM YORK
    ✓ IN STOCK!
    Buy Surplus As Low As $820.80
    $820.80
    Repair Yours $600.00
    JOHNSON CONTROLS AS-UNT110-1

    JOHNSON CONTROLS

    METASYS

    AS-UNT110-1

    DISCONTINUED BY MANUFACTURER, UNITARY CONTROLLER, CLASS 2, INPUT / 2 AMP / 24 VAC, OUTPUT / 0.54 AMP / 24 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,061.00
    $1,061.00
    Repair Yours $872.00
    JOHNSON CONTROLS AS-AHU-102-0

    JOHNSON CONTROLS

    METASYS

    AS-AHU-102-0

    DISCONTINUED BY MANUFACTURER, CONTROLLER BOARD, AIR HANDLING, 24 VDC, WITHOUT CASE
    ✓ IN STOCK!
    Buy Surplus As Low As $963.00
    $963.00
    Repair Yours $580.00
    HONEYWELL W973B1016

    HONEYWELL

    W973B1016

    DISCONTINUED BY MANUFACTURER, SOLID STATE LOGIC PANEL, 24 VOLTS, 50/60 HZ, 3 HEAT / 3 COOL, 8 VA, -40 TO 150 DEGREE F
    ✓ IN STOCK!
    Buy Surplus As Low As $1,394.00
    $1,394.00
    Repair Yours $600.00
    ALERTON TX-SA

    ALERTON

    TX-SA

    DISCONTINUED BY MANUFACTURER, CONTROLLER MICROPROCESSOR, FOR HEAT PUMP AC OR FAN
    ✓ IN STOCK!
    Buy Surplus As Low As $282.00
    $282.00
    Repair Yours $280.00
    ALERTON TUX-784ST

    ALERTON

    TUX-784ST

    DISCONTINUED BY MANUFACTURER, HVAC CONTROLLER BOARD
    ✓ IN STOCK!
    Buy Surplus As Low As $401.00
    $401.00
    Repair Yours $330.00
    SIEMENS 587-160

    SIEMENS

    STAEFA CONTROL SYS

    587-160

    WIRING BASE FOR PREDATOR
    ✓ IN STOCK!
    $37.60 Buy Surplus As Low As $22.56
    $22.56
    Repair Yours Contact Us
    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 $270.68 $169.80
    $270.68 $169.80
    Repair Yours $280.00
    WEIL MCLAIN 382-200-448

    WEIL MCLAIN

    382-200-448

    INTEGRATED BOILER CONTROL KIT, GOLD CONTROL MODULE CONVERSION KIT INCLUDES: MODULE, CIRCULATOR HARNESS, TEMPERATURE SENSOR JUMPER, REPLACES S9301A1001 & S9301A1027
    $534.00 Buy Surplus As Low As $321.00
    $321.00
    JOHNSON CONTROLS AS-VAV-110-1

    JOHNSON CONTROLS

    METASYS

    AS-VAV-110-1

    DISCONTINUED BY MANUFACTURER, CONTROLLER, VARIABLE AIR, VOLUME 8K, WITHOUT ENCLOSURE, CLASS 2, 24 VAC, 5 AMPS, REPLACED BY AS-VAV110-701
    ✓ IN STOCK!
    Buy Surplus As Low As $454.00
    $454.00
    Repair Yours $349.00
    JOHNSON CONTROLS AS-UNT140-1

    JOHNSON CONTROLS

    METASYS

    AS-UNT140-1

    DISCONTINUED BY MANUFACTURER, UNITARY CONTROL ASSEMBLY, POWER INPUT 24 VAC / 2 AMPS / CLASS 2, BINARY OUTPUT 24 VAC / 0.5 AMP / CLASS 2
    ✓ IN STOCK!
    Buy Surplus As Low As $444.72
    $444.72
    Repair Yours $369.12
    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 $495.00
    $495.00
    Repair Yours $379.00
    SIEMENS 544-110

    SIEMENS

    LANDIS & GYR

    544-110

    DISCONTINUED BY MANUFACTURER, PROCESSOR CARD, FOR UNITARY CONTROLLER
    ✓ IN STOCK!
    Buy Surplus As Low As $691.20
    $691.20
    Repair Yours $573.70
    JOHNSON CONTROLS FPC-101-601

    JOHNSON CONTROLS

    FPC-101-601

    CONTROLLER FIELD PROCESSING
    ✓ IN STOCK!
    Buy Surplus As Low As $536.26
    $536.26
    Repair Yours $351.39
    SCHNEIDER ELECTRIC 330735-02C

    SCHNEIDER ELECTRIC

    CSI CONTROL SYSTEM INC

    330735-02C

    DISCONTINUED BY MANUFACTURER, MICRO REGULATOR CONTROL MR55-C
    ✓ IN STOCK!
    Buy Surplus As Low As $460.80
    $460.80
    Repair Yours $382.46
    SIEMENS 544-381

    SIEMENS

    LANDIS & GYR

    544-381

    BACKPLANE BOARD FOR UNITARY CONTROLLER
    ✓ IN STOCK!
    Buy Surplus As Low As $1,001.00
    $1,001.00
    Repair Yours $840.00
    DELTA CONTROLS DEB100-1

    DELTA CONTROLS

    DEB100-1

    DISCONTINUED BY MANUFACTURER, DCU INPUT OUTPUT EXPANSION BOARD
    ✓ IN STOCK!
    Buy Surplus As Low As $291.00
    $291.00
    Repair Yours $240.00
    KMC CONTROLS KMD-5100

    KMC CONTROLS

    KMD-5100

    LAN CONTROLLER CARD MULTINET
    ✓ IN STOCK!
    Buy Surplus As Low As $13,975.20
    $13,975.20
    Repair Yours $11,599.42
    JOHNSON CONTROLS TE-7830-0

    JOHNSON CONTROLS

    TE-7830-0

    WIRELESS RECEIVER, FOR ONE-TO-ONE WIRELESS ROOM TEMPERATURE SENSING SYSTEMS, FIELD ADJUSTABLE FOR UP TO 510 UNIQUE ADDRESSES
    ✓ IN STOCK!
    $426.00 Buy Surplus As Low As $256.00
    $256.00
    Repair Yours $213.00
    UNITED TECHNOLOGIES CEPL130203-01

    UNITED TECHNOLOGIES

    CARRIER

    CEPL130203-01

    DISCONTINUED BY MANUFACTURER, HVAC CONTROLLER, 24VAC/60HZ, 60VA, 24VDC, 80MA, CLASS2
    ✓ IN STOCK!
    Buy Surplus As Low As $2,427.00
    $2,427.00
    Repair Yours $1,995.00
    SIEMENS 091-60230-44

    SIEMENS

    STAEFA CONTROL SYS

    091-60230-44

    DISCONTINUED BY MANUFACTURER, PC BOARD, CONTROLLER, SMART 2 PLUS DDC, 24 VDC, 50-60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $1,455.00
    $1,455.00
    Repair Yours $1,200.00
    HONEYWELL JACE-403

    HONEYWELL

    TRIDIUM INC

    JACE-403

    DISCONTINUED BY MANUFACTURER, INTERNAL MODEM BOARD,120 VAC, 50/60 HZ, 11 WIDE X 14 HIGH X 2.5 DEEP
    ✓ IN STOCK!
    Buy Surplus As Low As $2,008.45
    $2,008.45
    Repair Yours $1,574.68
    JOHNSON CONTROLS LP-FX10B33-002C

    JOHNSON CONTROLS

    LP-FX10B33-002C

    DISCONTINUED BY MANUFACTURER, PROGRAMMABLE ELECTRONIC CONTROLLER, FX10 "ADVANCED", HVAC/REFRIGERATION, 9 LOW POWER RELAYS, WAGO CONNECTORS, APPLICATION-LESS, 24 VAC/DC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $900.00
    $900.00
    Repair Yours $747.00
    INVENSYS MNL-5RS3

    INVENSYS

    BARBER COLMAN

    MNL-5RS3

    DISCONTINUED BY MANUFACTURER, CONTROLLER, MICRONET, I/A SERIES, 24VAC, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $546.00 $270.00
    $546.00 $270.00
    Repair Yours $449.00
    ACI ADVANCED CONTROLS INC PXP2.3G

    ACI ADVANCED CONTROLS INC

    PXP2.3G

    ANALOG INPUT (0-5VDC), PRESSURE OUTPUT (0-15PSI), DUAL VALVE, MAINTAINS BRANCH PRESSURE, GAUGE, (0-10V 0-15V 0-20MA SELECTABLE)
    ✓ IN STOCK!
    $246.00 Buy Surplus As Low As $148.00
    $148.00
    UNITED TECHNOLOGIES CEFA121498-02

    UNITED TECHNOLOGIES

    CARRIER

    CEFA121498-02

    COMMUNICATION MODULE AUTO GATEWAY III 8088
    ✓ IN STOCK!
    Buy Surplus As Low As $1,242.00
    $1,242.00
    Repair Yours $1,150.00
    HONEYWELL PUL6438

    HONEYWELL

    PUL6438

    DISCONTINUED BY MANUFACTURER, PROGRAMMABLE CONTROLLER UNITARY, 20-30VAC, 50/60HZ, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $428.00
    $428.00
    Repair Yours $352.00
    HONEYWELL XL50

    HONEYWELL

    XL50

    DISCONTINUED BY MANUFACTURER, CONTROLLER PROGRAMMABLE, 24 VOLT AC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $667.00
    $667.00
    Repair Yours $560.00
    JOHNSON CONTROLS XT-9100-8204

    JOHNSON CONTROLS

    METASYS

    XT-9100-8204

    DISCONTINUED BY MANUFACTURER, EXTENSION MODULE, 24 VAC, 50/60 HZ, LED INDICATING
    ✓ IN STOCK!
    Buy Surplus As Low As $163.73
    $163.73
    Repair Yours $200.00
    UNITED TECHNOLOGIES CEPL130201-01

    UNITED TECHNOLOGIES

    CARRIER

    CEPL130201-01

    DISCONTINUED BY MANUFACTURER, CONTROLLER, COMFORT 6400, CLASS 2, INPUT 60VA / 24VAC / 60HZ, DIGITAL OUTPUT 80MA / 24VDC, ANALOG 4-20MA / 0-10VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,031.00
    $1,031.00
    Repair Yours $847.00
    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 $758.00
    $758.00
    Repair Yours $640.00
    UNITED TECHNOLOGIES CEAS420983-01

    UNITED TECHNOLOGIES

    CARRIER

    CEAS420983-01

    DISCONTINUED BY MANUFACTURER, CONTROL BOARD, 8 ANALOG OUTPUT
    ✓ IN STOCK!
    $681.28 Buy Surplus As Low As $408.77
    $408.77
    Repair Yours $339.28
    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 $1,715.00
    $1,715.00
    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 $2,440.00
    $2,440.00
    Repair Yours $1,900.00
    SCHNEIDER ELECTRIC MSC-P-752

    SCHNEIDER ELECTRIC

    SIEBE

    MSC-P-752

    DISCONTINUED BY MANUFACTURER, TEMPERATURE CONTROLLER UNIT, ENVIRONMENTAL CONTROLS, INPUT: 101 VA MAX / 50/60 HZ, DIGITAL OUTPUT: 12 VA MAX / 24 VAC, 4-20 MA DC, 800 OHM MAX LOAD, CONNECT TO ...
    ✓ IN STOCK!
    Buy Surplus As Low As $52.22
    $52.22
    Repair Yours Contact Us
    INVENSYS MSC-P-100

    INVENSYS

    ROBERTSHAW

    MSC-P-100

    DISCONTINUED BY MANUFACTURER, TEMPERATURE UNIT CONTROLLER, LOW INPUT / OUTPUT, ANALOG INPUT, 16 LOOP MAX, 48 POINT, 24 VAC, 50/60 HZ
    ✓ IN STOCK!
    $275.40 Buy Surplus As Low As $165.24
    $165.24
    Repair Yours $200.00
    INVENSYS MSC-MPC001

    INVENSYS

    SIEBE

    MSC-MPC001

    DISCONTINUED BY MANUFACTURER, MULTIPURPOSE CONTROLLER, SMOKE CONTROL SYSTEM, ENERGY MANAGEMENT, 8 UNIVERSAL ANALOG INPUTS, FULL CLOCK FEATURES, 4 EXPANSION SLOTS, 28 VA, 24 VAC, 50/6HZ, OUTP ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,001.00 $585.00
    $1,001.00 $585.00
    Repair Yours $500.00
    INVENSYS DMS-ECH-001

    INVENSYS

    SIEBE

    DMS-ECH-001

    DISCONTINUED BY MANUFACTURER, ENVIRONMENTAL CONTROL SYSTEM, DMS-3500 ECHELON NIM XF 1250, INPUT / 600 MA / 5 VDC, DERIVED FROM DMS-3500 SERIES CONTROLLER, LOGIC LEVEL OUTPUT / CN3
    ✓ IN STOCK!
    Buy Surplus As Low As $2,809.08
    $2,809.08
    Repair Yours $2,331.54
    Next
    1 2 3 4 5 6 7 8 9 10 11