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  1. #1
    Join Date
    Jun 2011
    Location
    Lower Mainland, British Columbia
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    13

    Large size schrader core

    Does anyone recognize this style of access fitting? The brass hex is threaded into the round brass body. The shredder core inside is larger than the industry standard schrader core so can not remove core with standard tool like normal cores. A standard 1/4 service hose fits the 1/4 flare and also depresses the core ~~~ you just can not remove or tighten the larger core. This is on a 2 ton McQuay WSHP. Have also seen on Carrier RTU 5 years ago. Anybody know the brand name or any other info. Thanks.
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  2. #2
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
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    3,718
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  3. #3
    Join Date
    Jun 2011
    Location
    Lower Mainland, British Columbia
    Posts
    13
    Thanks for the internet link. This is what I have on the McQuay. It has been difficult to get McQuay tech support to call me back. Now I know precisely what I am working with and can go about sourcing a schrader removal tool. When I first seen this on a Carrier, I thought it was probably something that was beneficial to the manufacturer's evacuate and charge process. Now I know~five years later. lol.

  4. #4
    Join Date
    Oct 2003
    Location
    las vegas
    Posts
    1,505
    save yourself some cash & just install a sweat on piercing valve.
    i have several of the factory tools for the fastaccess valves &
    they are pretty pricey.

  5. #5
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
    Posts
    3,718
    Quote Originally Posted by marvin View Post
    save yourself some cash & just install a sweat on piercing valve.
    i have several of the factory tools for the fastaccess valves &
    they are pretty pricey.
    The core removal tool is expensive you are right about that but the high flow schrader does serve a purpose as to help speed up the servicing process of the machine. If the core needs to be changed out on a small system like that recovering the charge and using a small cresson wrench will do the job.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  6. #6
    Join Date
    Mar 2007
    Location
    wedged in freezer shelf
    Posts
    6,727
    Thankfully the ones I've seen in also have service valves at the compressor and receiver tank.

    So with the tool they show does it remove the core or just push it farther in?
    “If You Can Dodge A Wrench You Can Dodge A Ball”

  7. #7
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
    Posts
    3,718
    Quote Originally Posted by itsiceman View Post
    Thankfully the ones I've seen in also have service valves at the compressor and receiver tank.

    So with the tool they show does it remove the core or just push it farther in?
    No the tool is about the size of a 3/4" ball valve.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

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