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  1. 31-07-2011, 10:56 AM #1
    croc1774's Avatar
    croc1774
    croc1774 is offline regular poster
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    Daikin VRV 111 2 Pipe replacement Technology



    The guys on site have installed a Daikin vrv 2 pipe replacement technology system.
    Went to pressure test the weekend and wasn't getting a reading back on suction side!
    Checked gauges ,lines and valves.
    Checked flare nuts on fcu along system to see if nitrogen was present(ALL OK)
    I am wondering if the indoor units have solinoid valves in fcu and if power was applied to indoor unit or units they would close ?
    Any help would be appreciated.
    Regards


  2. 31-07-2011, 01:00 PM #2
    install monkey's Avatar
    install monkey
    install monkey is offline VIP Poster I am starting to push the Mods: of RE
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    Re: Daikin VRV 111 2 Pipe replacement Technology

    only if it was powered up prior to pressure testing,u can drive the valves open on the outdoor unit in the setting mode
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