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27-01-2019, 07:41 AM

dolce started a thread Advise about pipe connection for air cooler in System Optimization

Hello my friends Please Advise about pipe connection for air cooler. when i checked R22 plant this problem Drew attention the air...

21 replies | 820 view(s)

24-01-2019, 11:26 PM

r.bartlett started a thread https://www.solxenergy.com in Technical Speculations

Has anyone looked at this ? Seems counter intuitive

13 replies | 620 view(s)

02-02-2019, 12:50 PM

Grizzly started a thread Replacement of an Danfoss ICM 25 Module. in Technical Speculations

Hi Guys! I have poured over various Danfoss PDF's online and cannot find the answer to my Query! I am looking to replace a suspect ICM 25 Module....

12 replies | 379 view(s)

20-01-2019, 09:32 PM

Th.Mihov started a thread Advice needed for mini-split in Air Conditioning

Hello everybody :) A year ago the uncle of my wife gave me a working 12 000BTU ,R410 inverter mini-split system which someone was going to throw...

9 replies | 779 view(s)

26-01-2019, 04:58 PM

Peter_1 started a thread Soldering K copper in CO2

anyone already pressurized 1/2" drawn copper with soldered elbows on1700 psi, 120 bar? Any comments?

8 replies | 389 view(s)

21-01-2019, 10:44 PM

r.bartlett started a thread Daikin twin not ramping up on heating in Air Conditioning

Chaps got a 4kw twin split 2012. both indoors run on cooling as normal. but on heating the unit will only ramp up to 240psig and hence no real...

5 replies | 593 view(s)

12-02-2019, 09:55 PM

Kathleen started a thread compound refrigerant gauge calibration best suggested method in Tools and Calculators

I would like comments on the subjet: We have an intern discussion at the office on the reliability of our compound gauges calibration between two...

8 replies | 222 view(s)

03-02-2019, 03:51 AM

manmohan started a thread Two condenser use in NH3

Hi... can we use two shell tube type condenser on single reciprocating compressor? Plz give me inlet and outlet hedders drawing

5 replies | 452 view(s)

25-01-2019, 10:33 AM

Brian_UK started a thread Automotive Service Valve Leak in Transport

I'm a little confused about the access fittings you have. Are they proper R134a clip-on fittings or car tyre valve type schraders?

2 replies | 507 view(s)

20-01-2019, 06:40 PM

seanf started a thread Diode in series with AC coil in Fundamentals

Not much knowledge of electrics or electronics. A contactor coil for the three phase supply to a large inverter drive for a compressors motor....

4 replies | 303 view(s)

07-02-2019, 07:43 AM

gozoboy started a thread Flare torque wrench in Tools and Calculators

Hi all, During the last 18 months I have had to change my Rothenberger torque wrench twice. It loses its calibration and goes 'soft', clicking too...

5 replies | 218 view(s)

07-02-2019, 04:29 PM

nanuuk started a thread Plant Decommissioning in Technical Discussions

We are about to under take shutting down a 170,000 sq. ft. refrigerated warehouse for demolition. This is new territory for me and was wondering if...

2 replies | 284 view(s)

02-02-2019, 07:03 PM

A.Mortezania started a thread Water regulator valve in Fundamentals

Hi Friends, Photo below shows water regulator valve that helps condenser pressure to be constant. Always we use it at inlet water of condenser...

2 replies | 314 view(s)

15-02-2019, 08:15 AM

Peter_1 started a thread Woodley Micromon with red segment display in Controls

I have replace the battery in this old (+/- 25 yerars) device and since then, it won't print weekly the graphs anymore Does someone have an old...

3 replies | 110 view(s)

28-01-2019, 05:59 PM

A.Mortezania started a thread Positive displacement in Fundamentals

Hi Friends, I have a question. I read that scroll compressors are positive displacement compressors. What does it mean ? It means also we may...

2 replies | 288 view(s)

12-02-2019, 05:57 PM

kengineering started a thread Commercial Display Case BTUH / ft and Evap Temp requirements. in Technical Discussions

All, Looking at major supermarket display case manufacturer's data sheets, often times a model is listed with multiple BTUH / ft and evaporator...

2 replies | 160 view(s)

14-02-2019, 12:01 PM

Miked1 started a thread Retrofitting York YCAS screw chillers from R22 to R407c in Trouble Shooting

It's been a while since I posted anything here. I am about to embark on changing some R22 YCAS chillers to R407c and was wondering if anyone out...

2 replies | 153 view(s)

10-02-2019, 09:41 AM

yanev22 started a thread Carel PCO - programming in Controls

Hello ! Is there someone who can programm Carel PCO 2 ? I have a Blue Box chiller which were vandalism and stealing the PCO and EEV Drivers ....

2 replies | 138 view(s)

14-02-2019, 10:04 PM

born2dive9702 started a thread Hot tropical enviroment Condenser Temps in Technical Discussions

In a hot (120'F) desert environment do you want the condenser temps to be hot or cool? Under a normal system for condensers they say it has been...

2 replies | 126 view(s)

23-01-2019, 11:12 AM

SON started a thread CLIMAVENETA Magnetic bearing Can operate on Chiled water In/Out 14/5'C ? in Air Conditioning

Dear Frends, Can water cooled Magnetic Bearing Oil Free chiller operate or selection on chiled water In/Outlet 14/5'C?

0 replies | 426 view(s)

04-02-2019, 04:49 AM

Ying Wah Ling started a thread Replace new Danfoss TT300 compressor in Refrigeration Books

Replace new Danfoss TT300 compressor but the compressor BMCC factory current setting only 45 Amps. and use OEM code cannot change it! Therefor use...

1 replies | 208 view(s)

27-01-2019, 09:24 PM

hsn157134 started a thread USA coil Software (problem ) in Tools and Calculators

Hi when rating a condenser in usa coil software, there is CFM for axial fan.( my axial fan has a label for example 4000 cfm). which one is correct...

1 replies | 205 view(s)

26-01-2019, 01:07 PM

BnTir started a thread TRS Eco-drive + Iceland (Carrier) in Transport

Hello All! I have a question. I have a problem with refrigeration unit TRS (this is brand of Carrier, now) which is mounted on truck. This is...

0 replies | 345 view(s)

28-01-2019, 04:56 PM

Jackryan started a thread Career advice. in Commercial

Good Morning, I Currently work as a Refrigeration Supervisor for a cold storage facility, I work exclusively with Ammonia, but have been thinking...

0 replies | 295 view(s)

25-01-2019, 03:56 AM

dukesos started a thread Automotive Service Valve Leak in Transport

After successful compressor replacement and refrigerant swap, from R134a replacement with (40%) proprietary R290/R600a blend, we have discovered that...

0 replies | 282 view(s)

07-02-2019, 08:08 PM

chillermac started a thread chiller spare parts in Air Conditioning

Hi all, Does anyone have a contact for a distributor in Europe that supplies chiller parts? Outside of the UK..

0 replies | 254 view(s)

09-02-2019, 07:57 PM

yanev22 started a thread LG VRF - outdoor unit in Air Conditioning

Hello all , I need someone who is working with LG VRF systems to find out how can i run outdoor units with model : ARUH1208T1 and ...

0 replies | 191 view(s)

04-02-2019, 04:47 PM

texanul started a thread R23 Recovery Unit in Tools and Calculators

I must buy a recovery unit , a unit can handle big pressure refrigerants like R23 and R508 . My problem is this: only one found somwhere in USA but...

0 replies | 148 view(s)

14-02-2019, 09:57 PM

born2dive9702 started a thread ASHRE table help needed forgotten. in Technical Discussions

I can not remember (it has been 25 years since I apprenticed in my teens, and I have since changed careers, so forgive me) With the Ashre tables...

0 replies | 99 view(s)