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    Ashcroft B424BXFM-15 Pressure Switch 0-15# Nema 4x

    Ashcroft

    MSRP: $496.47
    Now: $383.63
    Ashcroft B424BXFM-15 Pressure Switch 0-15 PSI SPDT 1/4" NPT General Purpose Pressure Switch with Buna N Seal Watertight Nema 4X Enclosure with FM Approval FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $496.47
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    Ashcroft B429B-15 Pressure Switch w/ Buna Seal 0-15#

    Ashcroft

    MSRP: $665.94
    Now: $514.59
    Ashcroft B429B-15 Pressure Switch w/ Buna Seal 0-15 PSI SPDT 1/4" NPT Manual Reset on Decrease Pressure Switch with Buna N Seal Watertight Nema 4X Enclosure FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $665.94
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    Ashcroft B424V-30 Pressure Switch 30#

    Ashcroft

    MSRP: $472.23
    Now: $364.90
    Ashcroft B424V-30 Pressure Switch 0-30 PSI SPDT 1/4" NPT General Purpose Pressure Switch with Viton Seal and Watertight Nema 4X Enclosure FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $472.23
    Now: $364.90
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    Bosch HVAC 7738006383 Water Minimum Pressure Switch

    Bosch HVAC

    MSRP: $695.76
    Now: $537.63
    Bosch HVAC 7738006383 Water Minimum 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: $695.76
    Now: $537.63
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    Nortec Humidity 2598427 Air Proving Switch SP Duct Mtd

    Nortec Humidity

    MSRP: $245.54
    Now: $189.73
    Nortec Humidity 2598427 Air Proving Switch SP Duct Mtd 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: $245.54
    Now: $189.73
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    Aaon P62380 S-1 Switch

    Aaon

    MSRP: $37.16
    Now: $28.71
    Aaon P62380 S-1 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: $37.16
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    Warren Technology L300F-60FXX04 Limit Switch 300F

    WARREN TECHNOLOGY

    MSRP: $35.52
    Now: $27.45
    Warren Technology L300F-60FXX04 Limit Switch 300F 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: $35.52
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    Trane KIT9449 Air Pressure Switch w/ Tubing

    Trane

    MSRP: $412.48
    Now: $318.74
    Trane KIT9449 Air Pressure Switch w/ Tubing 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: $412.48
    Now: $318.74
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    ABB OT63FT3 Disconnect Switch 3 pole

    ABB

    MSRP: $162.16
    Now: $125.31
    ABB OT63FT3 Disconnect Switch 3 pole 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: $162.16
    Now: $125.31
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    Reznor 234301 Limit Switch L150-40F

    Reznor

    MSRP: $164.14
    Now: $126.84
    Reznor 234301 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: $164.14
    Now: $126.84
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    Cleveland Controls RFS-4001-037 Pressure Switch

    Cleveland Controls

    MSRP: $255.25
    Now: $197.24
    Cleveland Controls RFS-4001-037 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: $255.25
    Now: $197.24
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    Cleveland Controls DFS-221-222 Air Flow Switch SwitchSet@.05"WC,BarbedFitting

    Cleveland Controls

    MSRP: $171.14
    Now: $132.24
    Cleveland Controls DFS-221-222 Air Flow Switch SPDT Fixed to Operate on Pressure Rise at .05" 120-277Vac 1/4" Barbed Connections 1/2 Psi Maximum Pressure Air or Combustion By Products that will not Degrade Silicone FurnacePartSource.com...
    MSRP: $171.14
    Now: $132.24
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    Veris Industries H-739 Solid Core Switch, Adj.

    Veris Industries

    MSRP: $161.39
    Now: $124.71
    Veris Industries H-739 Solid Core Switch, Adj. 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: $161.39
    Now: $124.71
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    Carrier P282-X98220 Auxiliary Switch

    Carrier

    MSRP: $49.98
    Now: $38.62
    Carrier P282-X98220 Auxiliary 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: $49.98
    Now: $38.62
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    Lochinvar & A.O. Smith 100288429 Air Pressure Switch

    Lochinvar & A.O. Smith

    MSRP: $187.69
    Now: $145.03
    Lochinvar & A.O. Smith 100288429 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 above
    MSRP: $187.69
    Now: $145.03
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    International Comfort Products R02R008 Control High Limit 205-30F

    International Comfort Products

    MSRP: $36.83
    Now: $28.46
    International Comfort Products R02R008 Control High Limit 205-30F 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...
    MSRP: $36.83
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    Peerless Boiler 50210 Aquastat Limit

    Peerless Boiler

    MSRP: $317.20
    Now: $245.11
    Peerless Boiler 50210 Aquastat Limit 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: $317.20
    Now: $245.11
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    Carrier HH18HA545 Limit Switch L145-20F

    Carrier

    MSRP: $39.96
    Now: $30.88
    Carrier HH18HA545 Limit Switch L145-20F 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: $39.96
    Now: $30.88
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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.