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    Lennox 73K21 145-175F AUTO Limit Switch

    Lennox

    MSRP: $53.18
    Now: $40.29
    Lennox 73K21 145-175F AUTO 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
    MSRP: $53.18
    Now: $40.29
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    Lennox 73W19 155-30V LIMIT SWITCH

    G.E. APPLIANCES

    MSRP: $63.57
    Now: $48.16
    Lennox 73W19 155-30V 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
    MSRP: $63.57
    Now: $48.16
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    International Comfort Products 1192932 SWITCH PRESSURE

    International Comfort Products

    MSRP: $29.11
    Now: $22.05
    International Comfort Products 1192932 SWITCH PRESSURE 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: $29.11
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    Heatco HMESA2088-0306 Dual Pressure Switch

    Heatco

    MSRP: $98.75
    Now: $74.81
    Heatco HMESA2088-0306 Dual 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: $98.75
    Now: $74.81
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    Armstrong Furnace R110070005 L145-40F Limit Switch

    Armstrong Furnace

    MSRP: $33.79
    Now: $25.60
    Armstrong Furnace R110070005 L145-40F 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
    MSRP: $33.79
    Now: $25.60
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    Armstrong Furnace R101082-01 L145-40F Limit Switch

    Armstrong Furnace

    MSRP: $17.87
    Now: $13.54
    Armstrong Furnace R101082-01 L145-40F 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
    MSRP: $17.87
    Now: $13.54
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    Burnham Boiler 105005-01 Cond Float Swtich Repl Kit

    Burnham Boiler

    MSRP: $84.28
    Now: $63.85
    Burnham Boiler 105005-01 Cond Float Swtich Repl Kit 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: $84.28
    Now: $63.85
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    Burnham Boiler 108893-01 REPAIR KIT 3.0"WC PRESS SWITCH

    Burnham Boiler

    MSRP: $59.63
    Now: $45.18
    Burnham Boiler 108893-01 REPAIR KIT 3.0"WC PRESS 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: $59.63
    Now: $45.18
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    Rheem-Ruud 42-102056-04 Pressure Switch

    Rheem-Ruud

    MSRP: $63.62
    Now: $48.20
    Rheem-Ruud 42-102056-04 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: $63.62
    Now: $48.20
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    Dwyer Instruments DA-7034-153-3A DA/DS BOURDON TUBE PRSS SWTCH

    MSRP: $1,636.44
    Now: $1,239.73
     Dwyer Instruments DA-7034-153-3A DA/DS BOURDON TUBE PRSS SWTCH 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: $1,636.44
    Now: $1,239.73
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    A.J. Antunes 801111317 .1-4"wc SPDT 1/8" NPT Switch with Hirschmann DIN Plug

    A.J. Antunes

    MSRP: $152.00
    Now: $115.15
    A.J. Antunes 801111317 .1-4"wc SPDT 1/8" NPT Switch with Hirschmann DIN Plug 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: $152.00
    Now: $115.15
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    Armstrong Furnace R40154B004 Auto Limit Switch 140-170F

    Armstrong Furnace

    MSRP: $78.34
    Now: $59.35
    Armstrong Furnace R40154B004 Auto Limit Switch 140-170F 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: $78.34
    Now: $59.35
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    Bard HVAC 1804-0462BX High Pressure Switch 650#/520#

    Bard HVAC

    MSRP: $193.53
    Now: $146.61
    Bard HVAC 1804-0462BX High Pressure Switch 650#/520# 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: $193.53
    Now: $146.61
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    Lochinvar & A.O. Smith 100111732 (Updated Version of 9007122015) .75" AIR PRESSURE SWITCH

    Lochinvar & A.O. Smith

    MSRP: $93.72
    Now: $71.00
    Lochinvar & A.O. Smith 100111732 (Updated Version of 9007122015) .75" AIR PRESSURE SWITCH This is the Updated Version for 9007122015 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day...
    MSRP: $93.72
    Now: $71.00
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    Supco SRL260 Bimetal Rollout Limit Switch 1/2"

    Supco

    MSRP: $12.23
    Now: $9.26
    Supco SRL260 Bimetal Rollout Limit Switch  1/2 " Controls Temperature 260 degrees F Fixed Cut-out Temperature Open on Rise Switch Action Manual Reset FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $12.23
    Now: $9.26
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    MSRP: $12.23
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    International Comfort Products 1192717 Dual Air Pressure Switch

    International Comfort Products

    MSRP: $49.35
    Now: $37.39
    International Comfort Products 1192717 Dual Air 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...
    MSRP: $49.35
    Now: $37.39
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    Copeland Comfort Control (White Rodgers) 3L09-11 Board Mounted 1/2" Bimetal Disc Limit Switch

    Copeland Comfort Control (White Rodgers)

    MSRP: $23.73
    Now: $17.98
    Copeland Comfort Control (White Rodgers) 3L09-11 Board Mounted 1/2" Bimetal Disc Limit Switch Controls Temperature 210 degrees F Fixed Open Temperature 170 degrees F Fixed Close Temperature Open on Rise Switch Action Auto Reset 3.12" Insertion...
    MSRP: $23.73
    Now: $17.98
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    Lennox 14A54 Pressure Switch .45/.75"

    Lennox

    MSRP: $99.87
    Now: $75.66
    Lennox 14A54 Pressure Switch .45/.75"  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: $99.87
    Now: $75.66
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    Amana-Goodman 0130F00772SP Switch High Limit Uln

    Amana-Goodman

    MSRP: $9.22
    Now: $6.99
    Amana-Goodman 0130F00772SP Switch High Limit Uln  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: $9.22
    Now: $6.99
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    MSRP: $9.22
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    Trane SWT0839 Negative Pressure Switch

    Trane

    MSRP: $103.60
    Now: $78.49
    Trane SWT0839 Negative Pressure Switch open at 1.25 / close at 1.45 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: $103.60
    Now: $78.49
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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.

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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.

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