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Forum: Geothermal & Heat Pumps

11-01-14, 04:09 AM

Replies: 82

First Heatpump project

Views: 70,833

Posted By takyka

In general it's possible to use VFD to drive...

In general it's possible to use VFD to drive permanent magnet brushless motor. However it is not ideal and not designed for. You should be very careful with settings. I sucesfully run a BLDC fan...

Forum: Geothermal & Heat Pumps

07-31-14, 09:13 PM

Replies: 82

First Heatpump project

Views: 70,833

Posted By jeff5may

Looking at your diagrams and readings, I can tell...

Looking at your diagrams and readings, I can tell your system is doing well. Since it is in heating mode, we can only get pressure readings from the high pressure side of the system. The valves you...

Forum: Geothermal & Heat Pumps

07-31-14, 07:56 PM

Replies: 82

First Heatpump project

Views: 70,833

Posted By jeff5may

OMG loook here... a capillary tube. What a...

OMG loook here... a capillary tube. What a problem! OH NO!!!!!

Not.

These mini-split units don't need a metering device outside the box. You aren't going to kill your unit running in reverse....

Forum: Geothermal & Heat Pumps

07-31-14, 02:19 PM

Replies: 82

First Heatpump project

Views: 70,833

Posted By takyka

You should connect your blue gauge to the...

You should connect your blue gauge to the compressor suction line (where you indicated 25° on your drawing). For superheat calculation you need the pressure from there. The pressure at the current...

Forum: Geothermal & Heat Pumps

07-16-14, 02:37 PM

Replies: 82

First Heatpump project

Views: 70,833

Posted By AC_Hacker

I think you're good to go. You should charge...

I think you're good to go.

You should charge it up now...

-AC

Forum: Geothermal & Heat Pumps

06-28-14, 08:28 PM

Replies: 82

First Heatpump project

Views: 70,833

Posted By jeff5may

The above being said, I believe the mini split...

The above being said, I believe the mini split outdoor unit is decent. As long as you don't try to run it like the knock-off manufacturers did, it will do a good job and last a long time. The units...

Showing results 1 to 6 of 6

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