DX COil Sizing
Greetings to all, I am new to this field and need your kind advise how to select the DX coil. CMH=18,000 SST=6'C On Coil=32'C DB,25'C WB Off Coil=12'C
View ArticleWestinghouse fridge model bj4535v-r needing wiring diagram fridge freezing up
Hi all just need help with my old fridge its freezing up checked defrost heater and defrost sensor thermistor there fine, think it maybe the control board just like check out the wiring and thermostat...
View ArticleHELP!! KW duty formula
Some one has asked me this. I dont have a clue ive hardly worked on chillers. But am learning them now. Can some one please help me Chiller duty.*Kw= Flow (l/s) x temp diff (k) x 4.186 (s.g water). To...
View Articletemp-press for 410a in residential system
This is my first post in here, and I did search for similar questions, but it may be something that is too basic. Here is the situation. I have a 410a residential system with a small persistent leak...
View ArticleR 407f
Hi guys.. it s hard to find enough info about R 407F..Anybody can help me to find ph diagram and other properties of R 407F.. thanks in advance
View ArticleSamsung rs21ncsv
I have an American style fridge. As soon as I plug it I'm and turn it on it trips the 30a breaker in the distribution board. Iv checked the fuse in the fridge and it's fine. Can anyone help me with...
View ArticleCopeland Scroll Compressor for HVAC
Hi all, please some one tell me Replacement compressor for Copeland Scroll ZR19M3-TW7-522, LRA-239,380-3-60. R-22 Because the same compressor is not avalable in my area. Thanks
View ArticleManitowoc QY0214A trouble
Hey guys I am new at this forum so please forgive me if I am posting this in the wrong area. I have had my QY0214A under counter ice machine for about 5 years now. I bought it used. For the first few...
View ArticleFrick tdsh 233xl
G'day, Does anyone know the minimum allowable RPM for a frick tdsh 233xl? Can anyone email me a manual for one too please?
View ArticleTextbook Condensor Install
Bendy ladder on a van, condensor on shoulder. Sit back and chuckle! Skip to 6:04. http://www.youtube.com/watch?v=NIIf5XWvTvo
View ArticleHussmann Protocols
Does anyone out there know where I can buy controllers and boards for Protocol rack systems. I've been on the phone with Hussmann for the past week and they cannot help me at all. I'm looking for the...
View ArticleSensible Heat ratio
Hi Gents, I am quite new in this field and would like to request your kind advise. I am in the Marine & Offshore HVAC field I am now calculating one project by the following methods, Please correct...
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Reference ISO standards For Marine & Offshore HVAC
Please send meail to me lh.ahn84@gmail.com to get iso 8860,8861,8862,8863,8864,9943,7547,15138 to desgin marine and offshore projects. Attached Files ISO 8863..pdf (77.4 KB)
View ArticleAshrae duct fitting database version 5.0
ANybody need that? http://www.mediafire.com/download/px...c7jp/setup.rar
View ArticleQUE Compressors
Has anyone fitted a QUE compressor as a replacement for a Seltec TM15 on any make of fridge unit with 404a gas? how did it perform? has it given any problems? I only ask as the last time I deviated...
View ArticleMitsubishi system not cooling
Hi guys i am back to site , Monday with the replacement G50-A control . I've seen the guy from the office where it's to be fitted. He's just told be that half the 3rd floor is not cooling now . With no...
View ArticleCalculating condensing unit heat of rejection
Hi everyone, We are putting a Lab together to do our DOE testing. Other t han the typical loads, lights, appliances, ect. when sizing the cooling unit how do i calculate the heat of rejection of the...
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Water Sweating from HRW unit
Hi friends... Recently we had installed the HRW ( Heat Recovery Wheel ) for OT.mine problem is that, outside the unit water is sweating, for this i have attached the pics also.i was unable to find the...
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three terminal start relay
Ok, my brain is melting on this one. I swapped a compressor (aea3425yxa, 1/5hp) for a new compressor. Same techumseh model number, but they were out. However, they did some searching and I got the same...
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