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Type: Posts; User: Sir-Fixalot

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  1. Replies
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    The vacuum pump pulls down to 30 microns in less...

    The vacuum pump pulls down to 30 microns in less than 2 minutes. Shut off the ball valve and it jumps by a couple of hundred microns immediately. Looks like the gauge.
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    686

    Micron gauge problems?

    I think I may be having problems with a leaking micron gauge (JB DV-22N) because I can’t seem to hold a vacuum after valving off the vacuum pump. I use a T to mount the micon gauge. One side is...
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    Tony ... The variable speed capability of...

    Tony ... The variable speed capability of inverter technology is why I think a mini-split is applicable in this case. I would like to know what acturally controls the speed; is it temperature, line...
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    jb-eng: That unit looks like it might work. I've...

    jb-eng: That unit looks like it might work. I've heard that the city-multis are pricy. I'll check on that.

    hotrodrob: I looked at the duct units, but they are 35 to 43" wide and will not fit.
    ...
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    I purchased the G5 from someone who advertised on...

    I purchased the G5 from someone who advertised on Craig's list. It was nearly new and probably less than the price of the single. I like the machine, however, have nothing to compare it against. A...
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    failing motor

    Last winter I had a blower motor problem where the motor appeared to run at correct current. However, after about 15-20 minutes it slowly lost speed. Capacitor measured fine. I changed the motor. I...
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    The room to be conditioned is a great room with a...

    The room to be conditioned is a great room with a cathedral ceiling ... no attic. The only exterior wall has a fireplace and a pair of windows ... no space for an indoor unit. The other 3 walls are...
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    While this does not give a specific temperature,...

    While this does not give a specific temperature, it is interesting.

    http://www.motorsanddrives.com/cowern/motorterms4.html
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    mini-split indoor units

    Greetings.

    One of my customers would like to install air conditioning. They have hydronic heat and the house is relatively small. I thought that a mini-split would be ideal. The problem is that...
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    Introduction

    Greetings ...
    I've had an interest in refrigeration and AC for many years so when I saw a course in AC at the local trade school, I took it. With the basics, I've been able to repair many problems....
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