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16-08-2022, 07:41 PM

knighty replied to a thread IOT on HVAC-R in Computers & the Internet

ok... I know this is a spam thread.... but if anyone is interested in this stuff just ask some questions, I'm running an esp32 board (same family...

1 replies | 422 view(s)

16-08-2022, 05:15 PM

knighty started a thread parallel scroll compressors - oil level? in Commercial

looking to swap out a dead compressor a scroll would be quieter which would be better two 7hp Copeland Scroll 7 ZB50KCE-TFD-551 would be a good...

0 replies | 31 view(s)

16-08-2022, 12:40 PM

Tycho replied to a thread Pulling a vacuum in Fundamentals

false adding text to get over the minimum text requirement :)

1 replies | 51 view(s)

16-08-2022, 10:47 AM

peristaltx started a thread Peristaltic pump driving me nuts in Air Conditioning

We have a two year old Daikin multi system that we've been generally very happy with - the external unit is a 3MXM52N and we have two internal units...

0 replies | 51 view(s)

16-08-2022, 10:15 AM

DBCracker started a thread Pulling a vacuum in Fundamentals

On a big refrigeration system, when pulling a vacuum on the system, if you dont use a micron vacuum gauge you really dont have a clue if the system...

1 replies | 51 view(s)

16-08-2022, 09:55 AM

DBCracker started a thread Superheat Technical Details in Technical Discussions

If the superheat is set to 10 deg F while the box temp is at 15 deg F, will the superheat increase or decrease or stay the same if the box setpoint...

0 replies | 44 view(s)

14-08-2022, 12:16 PM

RANGER1 replied to a thread Superheat reference in Fundamentals

To me it’s normal, just have to have oil temperature well above saturated conditions if screw or reciprocating type. Copeland suggest standard 5...

4 replies | 155 view(s)

14-08-2022, 04:57 AM

lana replied to a thread Superheat reference in Fundamentals

Thanks for the replies. I don't have a problem in keeping the superheat in a normal range. For some refrigerants like R290 we need at least 20K...

4 replies | 155 view(s)

14-08-2022, 03:03 AM

RANGER1 replied to a thread system monotoring - what to monitor? in Controls

I would say faults, temperature alarms & dial out if temperature to high for “X” amount of time. Blast freezer fans can cook the meat if left on as...

1 replies | 72 view(s)

13-08-2022, 08:17 PM

knighty started a thread system monotoring - what to monitor? in Controls

had a couple of freezer problems lately and lost a lot of stock I've set up a tiny esp32 computer with wifi (it's about the size of a thumb) and a...

1 replies | 72 view(s)

13-08-2022, 02:58 PM

seanf replied to a thread Superheat reference in Fundamentals

What about using the compressor manufactures technical info for the particular compressor being used?

4 replies | 155 view(s)