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You would hope so. Although I have seen plenty of crazy designs from engineers to know that there are good ones... And not so good ones.
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I've never heard that before. Not that I dont trust you, but has anyone else hears this as well? How does it prevent the arcing?

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w...t...f...?

Are you talking about a CCH that runs parallel across a contactor, and is completed through a leg of the compressor that is not broken by a contactor?

If you look at the resistance across the...

I didn't realize the bleed resistor reduced arcing across the contacts of a start relay. I figured that since the start winding was still pulling all those amps, it's still going to arc like a mofo....

My daddy taught me many a lesson. One day he said "Son, mechanical systems are like having sex. If you have to force it, something is wrong."

This doesn't happen to be at a place in richmond, bc does it?

The honeywell jade economizers can incorporate co2 sensors as well as enthalpy. The enthalpy sensors can actually pull in mechanical cooling to control SA humidity. They are pretty easy to set up...

Like I said, send info at multistack.com an email. They will send you the service manual. I'm pretty sure ALL of multistacks model numbers start with MS.

Honestly though, most manufactures don't...

Dude, wear a mask. Legionnaires is not something you want to risk. It isn't worth risking your life over.

How much slop do you have in the blower and motor bearings? How tight do you run the belt? The official value is 1/64th" deflection for every inch of span. Practically, I find that so long as the...

What information are you looking for? What in particular are you trying to find out about the sensors and processor? Is it tied in to DDC or does it operate in stand alone.

EDIT:
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What kind of refrigerant are you running? If it is R-22 your condenser coil is still dirty or you aren't getting enough CFM's of air across it.

Running R-22. If ambient is ~65F, running a...

Perfect, thanks :) I figured it had something to do with the lack of valves.

Show up on time, don't lolligag (walk at a good speed, don't just amble along), don't check your personal phone every 15 seconds. If your journeymen looks like he is trying to work something out,...

cool. What kind of flow rates are you talking about going through one of those misters? Like 1gph or some small number like that? Depending on how much it runs, it might be expensive...especially if...

A lot of screw compressors have a sliding plate that opens and closes a slot along the screws, which increases or decreases capacity. Sounds like this one might have a series of ports controlled by...

ORI-ORD? Open on Rise of...?

Can anyone explain WHY pumping capacity of a centrifugal compressor decreases so rapidly with relatively small increases in compression ratio?

Thanks!

Very cool. Those are some sexy pipe and conduit jobs. Got a buddy in Alberta, goes to SAIT as well.

Yup, it keeps running...right up until the thing melts into a hot pile of slag :P

If you are going to insert a shameless sales pitch, at least learn how to spell.


As for the problem, what kind of pressures is the new compressor looking at? What kind of metering device does...

A lot of window shakers have condensate splashers built onto the condenser fan motor .

Thanks :)

I'm looking for service manuals/articles involving the transcritical CO2 refrigeration cycle. Does anyone have links or pdf's that explain the differences in system design etc?