Luckily for us our server room is on an exterior wall, opening the window is all we have been able to do. But we should probably be running a dehumidifier. There is a compressor heater we can buy, but the hvac guy didn't know where
On Wed, Aug 15, 2018, 11:38 AM Dave <[email protected]> wrote: > What about doing something to the outside ducts to allow outside air below > 40deg to be pulled to inside for cooling and > not use compressor at all. We have this setup for our data room and saves > tons on power consumption. > > > > On 08/15/2018 10:14 AM, [email protected] wrote: > > Ah, yes, that’s it, crankcase heater. I was close. > > *From:* Aeron Wireless > *Sent:* Wednesday, August 15, 2018 9:10 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] Low Temperature AC > > I've seen two different kits. One, more common in refrigeration, is a > crank case heater to keep the oil fluid. The other (more common in HVAC) > controls (reduces) the condenser's fan speed to prevent it from (literally) > freezing up. > > On Wed, Aug 15, 2018 at 11:07 AM <[email protected]> wrote: > >> I don't know what is different but I have been faced with the same thing. >> It seemed to me that it had something to do with the compressor starting >> when super cold. >> Perhaps different oil in it or something. >> >> -----Original Message----- >> From: Nate Burke >> Sent: Wednesday, August 15, 2018 8:56 AM >> To: Animal Farm >> Subject: [AFMUG] Low Temperature AC >> >> I'm looking to get a Mini Ductless Split system to put in a small server >> closet. Over the winter our outdoor temps get down to the -10 to -20F >> range but heat is still generated in the middle of the building. >> Looking at the Mitsubishi 'P' Series "Mr Slim" Lots of data sheets talk >> about the 'Ultra low ambient cooling option' Where the outdoor unit >> will work down to -40F. But I have not been able to find a single thing >> that says what the 'Ultra Low ambient cooling option' actually is, or >> any part numbers for it. >> >> The product catalog has a page dedicated to 'Low Ambient Cooling System' >> that operate to 0F and 'Ultra Low Ambient Cooling Systems' that operate >> down to -40F. But again, no part numbers are listed. >> http://www.mitsubishieng.ca/en/hvac/p-series/operation.html Lists a -40f >> Option. >> >> https://www.mitsubishipro.com/products/p-series/outdoor/single-zone-cooling-only >> Lists a -20F option. >> >> Has anyone had experience with these? It seems like it's more than just >> a wind baffle on the compressor, there are extra line heaters and >> filters that are needed? My Normal HVAC Guys are used to working >> residential/small business, so the need for cooling over the winter is >> hard for them to understand. Other HVAC guys that I've found that know >> about the P-Series only know that the spec sheet says cold weather >> operation, but nothing beyond that. >> >> Any Tips or different systems to look at? >> >> Nate >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> ------------------------------ > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > -- > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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