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Vacuum Breaker Assembly
For draining solar system
Watts<br>Vacuum Breaker Assembly<br>For draining solar system
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Base Price:  $50.00
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    watts vacuum breaker assembly

    Watts Vacuum Breaker Assembly
    The Vacuum Breaker is used with solar pool heater collectors to break the vacuum, by letting air into the system, and allow the solar panels to drain when the pump is turned off.  

    Step 1. Seal all threads with Teflon tape (tape not included).
    Step 2. Screw the vacuum breaker into the 90º threaded adapter.
    Step 3. Screw the 90º threaded adapter into the 1-1/2" x 1/2" Adapter

     If using a 1-1/2" x 3/4 Adapter instead, you must first screw it into the 3/4" x 1/2" adapter before screwing into the 90º adapter.

    Step 4.  Insert the vacuum breaker assembly in place of the lower or upper end cap and tighten with hose clamp. 

    For proper drainage to occur, the feed line must run downhill to the 3-way valve.  The 3-way valve must be open or “non-positive seal.” A positive seal may be converted by removing the seal from the diverter or drilling a 3/16” hole in the center of the diverter inside the 3-way valve.  You may also leave the “positive seal” 3-way valve open slightly to achieve the same results.

    A typical solar panel roof kit should look like the diagram below when finished.  It may vary based on the actual layout.

    vacuum breaker diagram

    1 - Watts Vacuum Breaker
    2 - 90º Threaded Adapter
    3 - 3/4 x 1/2" Adapter [Needed only if using the 1-1/2 x 3/4" Adapter]
    4 - 1-1/2 x 1/2" or 1-1/2 x 3/4 Pipe to Vacuum Breaker Adapter

    When needing to isolate the solar, and still run the pump, an isolation ball valve will need to be installed on the solar feed line to the solar to achieve total shutdown capabilities.  

    PRINT » Installation Instructions [PDF Format]    


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    Processing and Delivery Information: Please allow Processing Time as stated above for your order, plus standard transportation delivery time. Orders placed after 2PM EST may not begin processing until the next business day. Please call for Rush Processing and/or Rush Shipping options.

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