GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

Flare Fitting 90 Degree Elbow

user-6504396 | Posted in GBA Pro Help on

We have installed a Mitsubishi multi-position air handler MVZ-A18 as part of our ducted HVAC system.  The fittings that protrude from the front of the unit that are attached to the coil – one gas 1/2″, one liquid 1/4″, have a male flared fitting.  The fittings are welded in place and come straight out the front of the unit.  The multi-position is very compact except for these fittings which protrude 3″ from the front face.  By the time one makes the 90 degree flared fitting with copper and bends the tubing, one is 6-7 inches out from the front.  That makes it hard to locate the unit in a closet because the gas lines stick out so far.  The total depth of the unit without fittings is only 21″.

Is there any fitting available that would allow us to make the 90 degree turn with a brass fitting of some type and then make the copper flared tubing connection in 1/2″ an 1/4″.  My HVAC installer says he has searched everywhere for one and hasn’t been able to find a solution.

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Replies

  1. Expert Member
    BILL WICHERS | | #1

    You could try these guys:
    http://muellerrefrigeration.com/products/flare-fittings-flanges/45-flare-fittings/connectors/

    Another option would be McMaster Carr, which a quick look DOES seem to show some fittings which might work for you:

    https://www.mcmaster.com/tube-fittings/for-use-with~refrigerant/45-flared-fittings-for-copper-and-brass-tubing-9/

    McMaster Carr is happy to sell in small quantities too. They are an excellent source for oddball stuff when you only need a few of something. I have ordered from them often.

    Bill

  2. tommay | | #2

    I looked at the unit here

    https://www.gemaire.com/mitsubishi-mvz-a18aa4-m-series-multi-position-air-handling-unit-18k-btu-for-mxz-multi-zone-heat-pump-system-mvza18aa4

    and it looks like it came with the 90 deg fitting. If yours is missing then just flare the copper and cut it, slip on the flare nut, then solder on a copper 90 onto the stub and subsequent tubing.

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |