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Old 01-26-10, 12:17 AM   #133
Xringer
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I'm not sure, because the Sanyo 3 room unit uses 6 valves, that look like the 2 valves used on my lineset.

Your outdoor unit must have a pair of 3-way splitters that are fed from the Gas & Liquid valves. It's like a pair of 3-way manifolds under the sheet metal.

Those endcaps things are there to keep air, dirt & etc out of the manifolds.

The two valves are operated by removing the large brass caps and using an Allen wrench to release the R-410A into the manifolds (and the attached indoor units).

So, my guess is to install, you would wire all the electrical lines and then:

1. Hook up all the line-sets and pressure test them (if you have the nitrogen)

2. Vacuum the system down under 20 microns..
(Using the service port under the small cap on the Gas valve. It looks like a tire fill pin-valve).

3. Insert the allen wrench into the gas valve, open it for 5 seconds,
close it, and check for leaks.

4. No leaks? Then open both valves with the allen wrench, all the way.

Edit:
Okay! It's back! Welcome aboard. It looks like you are going to have some fun.
I don't know the specs of your system, but if your line sets are long, you may
have to add some R-410A to the system.. Not an easy DIY job.. May need a pro.
Start your thread and post some URLs pointing to the manuals, so we can all read
up and see if we can help you with your LG ASHP project..

Last edited by Xringer; 01-26-10 at 12:40 AM..
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