Keep in mind diversity,the original designers did heat load calcs and came up with the sizing but most engineers figure in diversity(not all units will be calling for 100% demand always/system rarely...
Type: Posts; User: bobby m
Keep in mind diversity,the original designers did heat load calcs and came up with the sizing but most engineers figure in diversity(not all units will be calling for 100% demand always/system rarely...
Have any of you guys used this system for upgrades and whats your opinion,we are being asked to quote a customer with the nx4100 with o2 trim.
Thanks
Is it on a freq. drive?,the reason i ask is lately i've noticed that couplers seem to not last as long on some pumps driven by a drive.(maybe someone here who knows more than me can elaborate on...
Insist that the controllers have built in hand / off / auto overide switches for the digital and analog outputs.
http://www.csimn.com/CSI_pages/AddMeIII-IP-LN.html
Never used them,but seem pretty cool.
I would look to see if mcquay is getting there readings from t-cores board/sensors beacause i've seen this too and derived that it's an issue with the "overlaying"of the operating controls.I would...
http://www.vacon.com
I belive these guys make the drives for cutler (not 100% sure) but i had same issue a while back and tracked it to vacon and looked at there site for recalls / product issues...
http://www.york-oylc.com.my/condair/home_files/IOM/YEAJ.pdf
Not exactly what you need but may be usefull.
Could there be a return fan or hepa filter bank somewhere you dont know about,or prhaps a sound attenuator that has become a filter over the years.Also take a close look at your txv bulbs and ext....
http://www.scadaengine.com/rdk/faq.htm
http://www.ccontrols.com/pdf/Essentials0110.pdf
Heres some info that may help you.(Fall asleep)
...
Thanks i'll find them,it was definitly causing issue because it had repeated failures over several days than i jumpered out the outputs and no failures for over a week,lucky it was stiffling hot out...
I have a york recip. ycrz that has issues with faulting at startup ,mostly motor current,the history stored doesn,t always jive with what i witness (shows 105% amps on a comp that was disabled...
Thanks guys have a safe 4th,turn all phones off.
:bsing: t Thanks amigo
My brain fart it's a ysda approx. 200 ton water cooled,with single comp. and oil separator.
Looking for a little advice,do you guys pull the charge to change oil or do you pump oil into tanks using recovery machine
Also i remember reading a post on here about a guy who discovered that if you slightly crack the drain valve on your vac. pump (while running it for water removal/dehydration) it will increase you...
A little off subject, but how tough is it to dehydrate glycol from a leak into a ref. circuit i've never seen or heard anyone having to do it.
Rev. is 1.0
Thanks, i'll check to see if i have latest rev.,if it isn't can it be flashed or do you have to buy a new one.
I have a job with alerton talking to 3 large carrier rtu's thru the ccn bacnet translator and i'm having intermitant falky faults etc.One thing i noticed is that all the rtu's are addressed as #1 on...
http://www.chipkin.com/files/pdf/Bacnet%20For%20Field%20Technicians.pdf
Maybe this wil help ya. After reading it i know why some people prefer lon,also look on there website they have some free...
2 pipe stands,6ft of 2" pipe and a chainfall = save 700$
I have a site with one that recently shows a station save failure in the output window,i'm concerned that if there is a power failure it won't re-boot,looking for opinions.
Also i think that...
I think you need to use a crossover cable for direct connect,also there were some shipped from jci with wrong i.p. from factory,search this site on subject.
http://www.youtube.com/watch?v=eOgh1Gaelzs&feature=related
f johnson
http://www.youtube.com/watch?v=nMmP04zmgfk
http://videos.apnicommunity.com/Video,Item,548315610.html
Heres a video of a guy talking how reliable they are.
http://www.synchrony.com/news/synchrony-receives-serial-production-order-for-integrated-drive-trains-from-mcquay.aspx
Looks like york likes wasting R+D money,mcquay beat them to it by using...
http://www.temcocontrols.com/?CategoryID=7
Can anyone shed some light on how the hi/low ports designations don't matter (can hook up either way) and if it's a hot wire type or pressure?,can they be zeroed or recalibrated.
Thanks
When the bearings needed recalibration and you plugged in the laptop was it mcquay or turbocor software.If it was turbocor how does one go about obtaining it.
Maybe since your in engineering school it might make good practice to find the information.
http://www.kele.com/templates/content.aspx?id=4946
Above is a link to an article that gives various circumstances present in variable primary systems(not the same as primary secondary)but is a...
Anyone have an issue with the keypads lcd's garbling up.
Have a jace connected to some mcquay self contained units that are working good but i get alot of bacnet transaction timed out errors , is this anything to be concerned abiut. (bacnet i.p.)
chucks of ice/snow causing problem.
water flow backwards
http://www.zonexsystems.com/gen2/gen2.htm
Not sure if there any good but there designed to replace carrier vvt.
http://www.automatedbuildings.com/news/jan09/articles/cctrls/081217014032cctrls.htm
http://www.chipkin.com/april-2009-newsletter
One of these articles may help you.
http://cgi.ebay.com/Echelon-Pyxos-FT-EVK-Evaluation-Kit_W0QQitemZ130371777086QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item1e5ac3723e
ACREQ Autocalibration Request BD 168
I found it nevermind.
Does anyone know the point type/# for Autocal Req as described above.
I would look into inverted starts,compressor taking back liquid,any type of tuning that may alter loading / unloading between comfort cooling and it's ice making pid's,and i would recommend...
http://hvac-talk.com/vbb/showthread.php?t=494152
Maybe the other people damage the drive by incorrectly megging it.
http://www.rbiwaterheaters.com/modules/lit_lib/download.asp?litFileID=1084
maybe this will help you
http://www.goesheatingsystems.com/index.php/water-heaters-boilers-commercial-pool-heaters
does this software require a donge key of some kind ?
I know on lochinvar (honneywell controls)they have a h-well board on each boiler that are factory programmed and bound to a field display that shows both boilers locally,i belive you are supposed to...
I recently worked on a job that was 2 pipe hot/chilled water system,i briefly
looked over one of the modules and couldnt find a relief valve.Given the fact that hot water could potentially be put...