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Controls

Controls

The HVAC control board is essentially the brains of the heating, ventilation and air conditioning system. Mounted inside the air handler or furnace unit, this electronic circuit board contains a variety of components like microprocessors, transistors, relays, and transformers that work together to regulate and direct all the operations of the HVAC system. The control board runs programming that can turn the system on or off, manage air flow speeds through the blower, start and stop the blower fan, trigger heating or cooling modes, monitor safety switches, control defrost cycles in heat pumps, and more. The board also contains diagnostic LED lights that can flash different error codes to assist HVAC technicians in quickly troubleshooting any issues.

HVAC control boards have evolved from using simple electromechanical technology to more advanced digital circuitry that offers higher precision, more efficiency, and added features. However, these boards are still prone to malfunction over time due to issues like electrical shorts, blown fuses, failed components, or general wear and tear. A faulty control board can lead to a variety of operation problems from no heating or cooling to inconsistent temperatures or a non-functioning unit. Only replacement with the exact OEM control board will properly restore system functioning. Upgrading to a newer control board model can also add improved capabilities to older HVAC equipment. Proper installation and wiring of the replacement board is critical for the system to operate safely and efficiently.

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    S8610U3009 Honeywell Intermittent Pilot Ignition Module S8610U3009 Honeywell Intermittent Pilot Ignition Module

    S8610U3009 Honeywell/Resideo Ignition Module

    Honeywell

    List Price: $142.61
    Price: $90.00
    Honeywell S8610U3009 Universal Intermittent Pilot Ignition Module replaces multiple field installed intermittent pilot modules supplied by Honeywell, Robertshaw, Johnson Controls and UTEC (HSC). Uses existing intermittent pilot burner. Includes...
    SKU:
    S8610U3009
    List Price: $142.61
    Price: $90.00
    Qty in Cart: 0
    Price:
    List Price: $142.61
    Price: $90.00
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    ST9120U1011 Honeywell Universal Electronic Fan Timer ST9120U1011 Honeywell Universal Electronic Fan Timer

    ST9120U1011 Honeywell/Resideo Universal Electronic Fan Timer

    Honeywell

    List Price: $177.36
    Price: $106.20
    Universal Electronic Fan Timer Module integrates control of all combustion blower and circulating fan operations in a gas warm air appliance. Replaces Honeywell ST9101, ST9120, ST9141 or ST9160 fan modules. Includes cross reference, instructions,...
    SKU:
    ST9120U1011
    List Price: $177.36
    Price: $106.20
    Qty in Cart: 0
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    List Price: $177.36
    Price: $106.20
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  • R85A-001

    R85A-001 3 speed fan board. 24V input, 120-277V, 11A fan control, UL Approved

    Vtronix

    Price: $45.00
    CONTROL BOARDS    The R85A-001 is an electronic fan control board that provides control of a three-speed line voltage fan motor. It can be connected to a thermostat that by itself does not have the current or voltage rating to...
    SKU:
    R85A-001
    Price: $45.00
    Qty in Cart: 0
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    Price: $45.00
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  • R200A Control Board for hot water/electric heat AHU

    R200A (Series 3) Control Board for hot water/electric heat AHU, UL Approved

    Vtronix

    Price: $75.00
    CONTROL BOARDS  The R200A Series3 AHU control board provides microprocessor control of a hot water or electric heat air handling unit. The board features a jumper select operation between an electric heat system or a hot water system. When...
    SKU:
    R200A
    Price: $75.00
    Qty in Cart: 0
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    Price: $75.00
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  • R60B-45/S2 Fan Delay Board (1s ON delay, 45s OFF delay)

    R60B-45/S2 Fan Delay Board (1s ON delay, 45s OFF delay)

    Honeywell

    Price: $25.00
    The 1 speed fan control board (R60B) is an electronic fan control board which provides, in one device, control of a line voltage fan motor. The primary purpose is to control the fan motor use in air-conditioning & heating systems. The control...
    SKU:
    R60B-45/S2
    Price: $25.00
    Qty in Cart: 0
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    Price: $25.00
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  • R7849A1023 Honeywell Flame Amplifier

    R7849A1023 Honeywell Flame Amplifier

    Honeywell

    List Price: $305.55
    Price: $194.00
    Overview Solid state plug-in amplifiers that respond to flame detector inputs to indicate the presence of flame when use with 7800 SERIES relay modules. Features   Flame failure response time of 0.8 or 3.0 seconds. Flame signal strength...
    SKU:
    R7849A1023
    List Price: $305.55
    Price: $194.00
    Qty in Cart: 0
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    List Price: $305.55
    Price: $194.00
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  • S7800A2142 Honeywell 4-Line Keyboard Display Module - Replacement for S7800A1001 S7800A2142 Honeywell 4-Line Keyboard Display Module - Replacement for S7800A1001

    S7800A2142 Honeywell 4-Line Keyboard Display Module - Replacement for S7800A1001

    Honeywell

    List Price: $594.86
    Price: $535.37
    The S7800A2142 Keyboard Display Module is the newest and most intuitive way to interact with any 7800 Series Flame Relay module. The new display is packed full of features and, best of all, it is compatible with ALL 7800 SERIES burner controls.The...
    SKU:
    S7800A2142
    List Price: $594.86
    Price: $535.37
    Qty in Cart: 0
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    List Price: $594.86
    Price: $535.37
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  • Y8610U6006 Honeywell Gas Valve Intermittent Pilot Retrofit Kit Y8610U6006 Honeywell Gas Valve Intermittent Pilot Retrofit Kit

    Y8610U6006 Honeywell Gas Valve Intermittent Pilot Retrofit Kit

    Honeywell

    List Price: $386.33
    Price: $367.01
    Gas Valve Intermittent Pilot Retrofit Kit, Honeywell conversion Gas Valve and Ignition Module & Pilot Assy.  FROM THE MANUFACTURER Honeywell Gas Valve Intermittent Pilot Retrofit Kit. 1/2"NPT inlet 3/4"NPT outlet straight through Pressure...
    SKU:
    Y8610U6006
    List Price: $386.33
    Price: $367.01
    Qty in Cart: 0
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    List Price: $386.33
    Price: $367.01
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  • VR8345M4302 Honeywell Universal 24 Vac with Standard Opening, Intermittent/Direct Ignition Gas Valve VR8345M4302 Honeywell Universal 24 Vac with Standard Opening, Intermittent/Direct Ignition Gas Valve

    VR8345M4302 Honeywell Universal 24 Vac with Standard Opening, Intermittent/Direct Ignition Gas Valve

    Honeywell

    List Price: $155.17
    Price: $139.65
    Description 1/2" NPT Smart Gas Valve - Slow Opening Opening Slow Body Pattern Straight-Through Voltage 24Vac; 50/60 Hz Ignition Trial Time 90 sec Prepurge 15 sec Inlet Size 1/2" Outlet...
    SKU:
    VR8345M4302
    List Price: $155.17
    Price: $139.65
    Qty in Cart: 0
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    List Price: $155.17
    Price: $139.65
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  • SV9520H8513 Upgraded Replacement for Honeywell Furnace Smart Gas Valve

    SV9520H8513 Honeywell Smart Gas Valve

    Honeywell

    List Price: $378.63
    Price: $340.77
    Description 1/2" NPT Smart Gas Valve - Slow Opening Opening Slow Body Pattern Straight-Through Voltage 24Vac; 50/60 Hz Ignition Trial Time 90 sec Prepurge 15 sec Inlet Size 1/2" Outlet...
    SKU:
    SV9520H8513
    List Price: $378.63
    Price: $340.77
    Qty in Cart: 0
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    List Price: $378.63
    Price: $340.77
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  • Q7800A1005 Honeywell Wiring Subbase

    Q7800A1005 Honeywell Wiring Subbase

    Honeywell

    List Price: $40.23
    Price: $36.21
    Honeywell Q7800A1005 Wiring Subbase  Plastic 7800 Series Subbase - for Panel Mounting For 7800 SERIES relay modules and S7830A Expanded Annunciator   Features Makes electrical connections for 7800 SERIES relay modules or S7830A Expanded...
    SKU:
    Q7800A1005
    List Price: $40.23
    Price: $36.21
    Qty in Cart: 0
    Price:
    List Price: $40.23
    Price: $36.21
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