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    Rheem-Ruud 47-22861-02K Limit Switch 300F M/R

    Rheem-Ruud

    MSRP: $9.07
    Now: $7.01
    Rheem-Ruud 47-22861-02K 300F M/R LIMIT SWITCH FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
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    Rheem-Ruud 47-102473-01K SPST NC AR LIMIT; 150OP 130CL

    Rheem-Ruud

    MSRP: $48.87
    Now: $37.77
    Rheem-Ruud 47-102473-01K SPST NC AR LIMIT; 150OP 130CL FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $48.87
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    Peerless Boiler 50535 Aquastat Limit w/ 3/4" Well

    Peerless Boiler

    MSRP: $462.89
    Now: $357.69
    Peerless Boiler 50535 Aquastat Limit w/ 3/4" Well FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $462.89
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    Bosch HVAC 8733955613 Pressure Switch

    Bosch HVAC

    MSRP: $18.07
    Now: $13.96
    Bosch HVAC 8733955613 Pressure Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $18.07
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    Lennox 59W45 Limit Switch L150-40F

    Lennox

    MSRP: $21.58
    Now: $16.68
    Lennox 59W45 Limit Switch L150-40F FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $21.58
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    Rheem-Ruud 42-24195-03K .40"WC PRESS SW, DRAIN

    Rheem-Ruud

    MSRP: $105.02
    Now: $81.15
    Rheem-Ruud 42-24195-03K .40"WC PRESS SW, DRAIN FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $105.02
    Now: $81.15
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    Trane SWT04603 Switch 3pole 250a 600v Switch

    Trane

    MSRP: $8,641.45
    Now: $6,677.48
    Trane SWT04603 Switch 3pole 250a 600v FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $8,641.45
    Now: $6,677.48
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    Schneider Electric (Square D) 9037HW30 Float Switch NEMA IV Close/Rise

    Schneider Electric (Square D)

    MSRP: $1,176.94
    Now: $909.46
    Schneider Electric (Square D) 9037HW30 Float Switch NEMA IV Close/Rise FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless...
    MSRP: $1,176.94
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    Daikin-McQuay 113110902 Gas Heat Hi Limit Switch 7"

    Daikin-McQuay

    MSRP: $113.64
    Now: $87.81
    Daikin-McQuay 113110902 Gas Heat Hi Limit Switch 7" FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $113.64
    Now: $87.81
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    Nidec-Embraco 2324069-ESP Overload

    Nidec-Embraco

    MSRP: $27.08
    Now: $20.92
    Nidec-Embraco 2324069-ESP Overload FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $27.08
    Now: $20.92
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    International Comfort Products 1171303 Hi Pressure Switch op426 cl320#

    International Comfort Products

    MSRP: $58.48
    Now: $45.19
    International Comfort Products 1171303 Hi Pressure Switch op426 cl320# FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless...
    MSRP: $58.48
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    Trane SWT3541 Pressure Switch Open-2.15wc Close-2.4"

    Trane

    MSRP: $68.49
    Now: $52.93
    Trane SWT3541 Pressure Switch Open-2.15wc Close-2.4" FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $68.49
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    York 025-36312-000 Limit Switch 140F-30F

    York

    MSRP: $226.21
    Now: $174.80
    York 025-36312-000 Limit Switch 140F-30F FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $226.21
    Now: $174.80
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    Dwyer Instruments 1638-10 Pressure Switch Large Diaphragm 3"w.c. to 12"w.c

    Dwyer Instruments

    MSRP: $784.15
    Now: $605.93
    Dwyer Instruments 1638-10 Pressure Switch Large Diaphragm 3"w.c. to 12"w.c. 0.11-0.30 Approximate Deadband Air and Non Combustible Gases SPDT Switch 1/8" Female NPT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock...
    MSRP: $784.15
    Now: $605.93
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    Schneider Electric (Square D) 9036DG2C Float Switch

    Schneider Electric (Square D)

    MSRP: $162.06
    Now: $125.23
    Schneider Electric (Square D) 9036DG2C Float Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $162.06
    Now: $125.23
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    York 325-40393-000 High Pressure Cutout Switch

    York

    MSRP: $961.90
    Now: $743.29
    York 325-40393-000 High Pressure Cutout Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $961.90
    Now: $743.29
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    Lochinvar & A.O. Smith 100208387 Pressure Switch 1.15"wc SPST

    Lochinvar & A.O. Smith

    MSRP: $72.07
    Now: $55.69
    Lochinvar & A.O. Smith 100208387 Pressure Switch 1.15"wc SPST FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $72.07
    Now: $55.69
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    Cleveland Controls NS2-1183-00 Switch .016ORF 1.15+/-.05"WC

    Cleveland Controls

    MSRP: $78.99
    Now: $61.03
    Cleveland Controls NS2-1183-00 Switch .016ORF 1.15+/-.05"WC FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $78.99
    Now: $61.03
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    Schneider Electric (Square D) 9038AG1S6 Float Switch 575V

    Schneider Electric (Square D)

    MSRP: $707.59
    Now: $546.77
    Schneider Electric (Square D) 9038AG1S6 Float Switch 575V FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $707.59
    Now: $546.77
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    Schneider Electric (Square D) 9036FG30 Pedestal Mount Float Switch 600V 10A

    Schneider Electric (Square D)

    MSRP: $60.41
    Now: $46.68
    Schneider Electric (Square D) 9036FG30 Pedestal Mount Float Switch 600V 10A Item is Non-Cancelable / Non-Returnable FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by...
    MSRP: $60.41
    Now: $46.68
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HVAC Replacement Switches

Without switches, your furnace or air conditioner would simply run non-stop without any method of controlling it. Furnace switches provide a useful service by regulating pressure and power to different modules, which in turn allow your equipment to work in the way that you expect.

Though it can be somewhat of a challenge to find the appropriate switch for any given use case, it can help to locate the brand name and re-order or part number if applicable. While dimensions are provided for each switch in question, the catalog numbers are more than sufficient for finding the correct component in the vast majority of situations.

Pressure Switches

Pressure levels aren’t something to fool around with, considering that excessive pressure measurements could potentially cause a line rupture or other malady. Simply installing a new York Controls limit switch might be enough to slash the possibility of this happening. Take a few moments to check your entire HVAC installation and locate any places where you might be better off with having added a few additional switches like this.

Though you might think that such a simple component is more or less static, nothing could be further from the truth. Updated Lochinvar & A.O. Smith switches are an excellent representation of what new switch technologies are doing to revitalize the industry.

Engineering teams are constantly working on new solutions in this space. While it might not always be obvious and most innovations are incremental at this point, newer switches often boast better build quality and a greater degree of safety as a result of over-engineered points.

Depending on the type of application you’re installing this equipment on, you might find that these designs are considerably more durable than anything you previously used. That’s excellent news for commercial and retail operators in particular since mission-critical operations are quite common in those spaces.

Roll Out Switches

Usually, roll-out switches are found on gas furnaces and they’re used as a safety device. If a gas flame suddenly goes out, then the roll-out switch turns the gas off so that you can’t have a sudden ignition later on. They’re extremely important for this reason, and many jurisdictions require their installation for safety reasons.

Fortunately, there are options from brands like Utica-Dunkirk that can help to dramatically reduce the risk of any accident caused by a flame suddenly going out. All of these roll-out switches are designed to meet or exceed the specifications provided by manufacturers for any piece of equipment that could potentially mount one. As a result, the installation of one could potentially prove to be an upgrade.

Match The Right Switches To Your HVAC System With Furnace Part Source

Traditionally, it can be difficult to match the exact switches needed for a project because of the wide variety. That’s why our team here at Furnace Part Source has put together such a comprehensive collection of switches. They should serve the needs of the greatest number of clients.

Those who run into a snag finding the right safety feature can always use our online contact form. Furnace Part Source will supply HVAC technicians with the necessary components for air conditioning or furnace repair.