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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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  • C7027A1023 Honeywell Ultraviolet Flame Detector

    C7027A1023 Honeywell Ultraviolet Flame Detector

    Honeywell

    List Price: $203.26
    Price: $150.00
    Compact flame detector for use with flame safeguard controls with ultraviolet amplifiers. Features Use with Honeywell Flame Safeguard primary safety controls and burners requiring ultraviolet flame detection. C7027 mounts on a 1/2 in. sighting pipe...
    SKU:
    C7027A1023
    List Price: $203.26
    Price: $150.00
    Qty in Cart: 0
    Price:
    List Price: $203.26
    Price: $150.00
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  • SV9641M4510 Upgraded Replacement for Honeywell Furnace Smart Gas Valve

    SV9641M4510 Honeywell Smart Gas Valve

    Honeywell

    List Price: $428.65
    Price: $385.79
    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:
    SV9641M4510
    List Price: $428.65
    Price: $385.79
    Qty in Cart: 0
    Price:
    List Price: $428.65
    Price: $385.79
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  • R7284U1004 Honeywell Universal Digital Electronic Oil Primary R7284U1004 Honeywell Universal Digital Electronic Oil Primary

    R7284U1004 Honeywell Universal Digital Electronic Oil Primary

    Honeywell

    List Price: $91.73
    Price: $87.14
    Electronic Oil Primary with 15 seconds lock out timing and selectable valve and blower delays.The R7284 lets you keep track of system quality by accessing memory data that gives a clear picture of day-to-day performance. The error history capability...
    SKU:
    R7284U1004
    List Price: $91.73
    Price: $87.14
    Qty in Cart: 0
    Price:
    List Price: $91.73
    Price: $87.14
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  • S7800A1001 Honeywell Burner Control Keyboard Display

    S7800A1001 Honeywell Burner Control Keyboard Display

    Honeywell

    List Price: $545.00
    Price: $475.00
    Overview Provides current status of burner sequence, timing information, hold information and lockout information, as well as selectable or preemptive messages. Features   Application flexibility. First-out annunciation and system...
    SKU:
    S7800A1001
    List Price: $545.00
    Price: $475.00
    Qty in Cart: 0
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    List Price: $545.00
    Price: $475.00
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  • C7061A1046 Honeywell Dynamic Self-Check Ultraviolet Flame Detector

    C7061A1046 Honeywell Dynamic Self-Check Ultraviolet Flame Detector

    Honeywell

    List Price: $1,477.32
    Price: $1,329.59
    Note: This model comes with Mounting flange with 1 inch NPT internal threads for attaching to sight pipe.The C7061A,F are dynamic self-checking flame detectors for sensing the ultraviolet radiation generated by the combustion of gas, oil, or other fuels...
    SKU:
    C7061A1046
    List Price: $1,477.32
    Price: $1,329.59
    Qty in Cart: 0
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    List Price: $1,477.32
    Price: $1,329.59
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  • SV9501M2528 Honeywell Gas Valve

    SV9501M2528 Honeywell Smart Gas Valve

    Honeywell

    List Price: $357.62
    Price: $321.86
      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:
    SV9501M2528
    List Price: $357.62
    Price: $321.86
    Qty in Cart: 0
    Price:
    List Price: $357.62
    Price: $321.86
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  • C7061A1053 Honeywell Flame Sensor- Replacement for C7061A1012 C7061A1053 Honeywell Flame Sensor- Replacement for C7061A1012

    C7061A1053 Honeywell Flame Sensor- Replacement for C7061A1012

    Honeywell

    List Price: $1,541.67
    Price: $1,387.50
    Overview Dynamic self-checking flame detector use with R7861 Dynamic Self-check Amplifiers for sensing the ultraviolet radiation generated by the combustion of gas, oil, or other fuels. Features Oscillating shutter interrupts ultraviolet radiation...
    SKU:
    C7061A1053
    List Price: $1,541.67
    Price: $1,387.50
    Qty in Cart: 0
    Price:
    List Price: $1,541.67
    Price: $1,387.50
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  • RM7890A1015 Honeywell On-Off Primary Burner Control RM7890A1015 Honeywell On-Off Primary Burner Control

    RM7890A1015 Honeywell On-Off Primary Burner Control

    Honeywell

    List Price: $510.28
    Price: $440.25
    Honeywell RM7890A1015 On-Off Primary Control Microprocessor-based integrated primary burner control for automatically fired gas, oil or combination fuel single burner applications. Provides level of safety, functional capability and features beyond...
    SKU:
    RM7890A1015
    List Price: $510.28
    Price: $440.25
    Qty in Cart: 0
    Price:
    List Price: $510.28
    Price: $440.25
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  • R8184M1051 Honeywell Protectorelay Oil Burner Control with 45 seconds R8184M1051 Honeywell Protectorelay Oil Burner Control with 45 seconds

    R8184M1051 Honeywell Protectorelay Oil Burner Control with 45 seconds

    Honeywell

    List Price: $219.27
    Price: $197.10
    Provides automatic, nonrecycling control of an intermittent ignition oil burner system.Specifications Controls oil burner, oil valve (if desired) and the ignition transformer in response to a call for heat. Solid state flame sensing circuit. LED on...
    SKU:
    R8184M1051
    List Price: $219.27
    Price: $197.10
    Qty in Cart: 0
    Price:
    List Price: $219.27
    Price: $197.10
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  • RM7895A1014 Honeywell On-Off Primary Burner Control

    RM7895A1014 Honeywell On-Off Primary Burner Control

    Honeywell

    List Price: $738.28
    Price: $660.00
    The RM7895A,B,C,D are microprocessor-based integrated burner controls for automatically fired gas, oil, or combination fuel single burner applications. They are intended to replace the R4795 and R7795 Primary Controls. The RM7895A,B,C,D system...
    SKU:
    RM7895A1014
    List Price: $738.28
    Price: $660.00
    Qty in Cart: 0
    Price:
    List Price: $738.28
    Price: $660.00
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  • SV9502H2522 Honeywell Smart Gas Valve SV9502H2522 Honeywell Smart Gas Valve

    SV9502H2522 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:
    SV9502H2522
    List Price: $378.63
    Price: $340.77
    Qty in Cart: 0
    Price:
    List Price: $378.63
    Price: $340.77
    Subtotal:
  • M7284C1000 Honeywell 120V Non-Spring Return Foot Mounted Actuator

    M7284C1000 Honeywell 120V Non-Spring Return Foot Mounted Actuator

    Honeywell

    List Price: $1,478.95
    Price: $1,183.16
    Description – The Series 72 Modutrol IV Motors spring return and non-spring return motors are used to control dampers and valves. The motors accept a current or voltage signal from an electronic controller to position a damper or...
    SKU:
    M7284C1000
    List Price: $1,478.95
    Price: $1,183.16
    Qty in Cart: 0
    Price:
    List Price: $1,478.95
    Price: $1,183.16
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