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30-08-2023, 10:16 AM

l2embo started a thread Ammonia pump pressure drops in NH3

Dear frineds We are dealing with commissioning aa ammonia refrigeration system. There are two stages with piston gea compressors. The problem is...

4 replies | 870 view(s)

11-09-2023, 09:15 PM

Ant27 started a thread Multi Split Question in Air Conditioning

Could one indoor unit be removed from this multi split set up? Is it a case if pumping down, cutting the line to be removed and blanking off the...

2 replies | 1057 view(s)

25-08-2023, 04:24 AM

CPerry started a thread Removing Daikin PCB - RZP125DV1 in Fundamentals

Hi I am trying to remove PCB PC0104H-1 from Daikin RZP125DV1 Have disconnected plugs and wiring and the two screws Board only moves a few...

6 replies | 430 view(s)

31-08-2023, 02:45 PM

najdo started a thread Principles of Refrigeration- Roy J Dossat 31.08.2023 in Refrigeration Books

Hello, can someone who has the SI edition from Principles of Refrigeration- Roy J Dossat, share some pictures from the book (the cover and from the...

5 replies | 519 view(s)

27-08-2023, 04:44 PM

monkey spanners started a thread What Van do you have? in Chit Chat & Service Stories

As the title says, what van do you use for work? Currently I have a Mercedes Vito 119 elwb, with a nominal payload of 1200kg and a 3.1m load...

4 replies | 455 view(s)

14-09-2023, 08:16 PM

altera started a thread Pulsor 400 mt in Transport

Hi guys, anybody have a wiring diagram for a Pulsor 400 mt?

0 replies | 977 view(s)

05-09-2023, 01:14 PM

l2embo started a thread ammonia separator level in NH3

Dear friends is there any standard pointing out the suggested liquid level of ammonia in separators? we have -10 and -40 ammonia separator whit...

2 replies | 420 view(s)

22-08-2023, 08:43 PM

Ben93 started a thread Mitsubishi electric city multi issues in Trouble Shooting

I’ve been asked to go look at something for a friend who has had a couple of people look at the system and had no joy in working out the fault and...

4 replies | 203 view(s)

08-09-2023, 04:23 PM

moviehouse started a thread MitsubishiP5 in Air Conditioning

Hello, i recentley took advice on here on how to deal with a P5 error code on a mitsubishi air con unit. I have emptied both bung plugs of the water...

1 replies | 507 view(s)

19-09-2023, 05:57 PM

samabraham started a thread hot gas high temperature in NH3

Dear All, I am facing a problem with ammonia chiller always trip in high temperature hot gas. our Mycom i160LL when it run 100...

3 replies | 103 view(s)

13-09-2023, 08:34 PM

Stan-R134 started a thread Mastercool 69000 connecting rod and piston in Technical Speculations

Hello, I am new to this forum so please accept my apologies if this post is in the wrong section. At the time of writing this article, I am...

2 replies | 387 view(s)

04-09-2023, 07:15 AM

hongyunref started a thread have some questions ( sorry im new and bad in english) in Industrial

1) When Room 1 door opened,the temperature of the freezer room which is (-20c) will dropped by how many? The temperature of the Ante room (+5c). ...

1 replies | 427 view(s)

09-09-2023, 05:18 PM

samabraham started a thread Green box water chiller. in Commercial

Anyone has experience with green box chiller. special in welding in evaporator side with copper and stainless steel. what gas welding rod and flux in...

1 replies | 381 view(s)

04-09-2023, 03:43 PM

samabraham started a thread water chiller in Commercial

i have Green -box water chiller with scroll compressor model ZP485KCE - TWD -522. This scroll compressor have high vibration and breaker trip. what...

0 replies | 426 view(s)

28-08-2023, 12:31 PM

davidk started a thread LG external unit eeprom failure in Air Conditioning

Hi, I have a LG FM19AH (A3UW186FA0) multi split external unit with a faulty/corrupted eeprom. I found the faulty chip is 24C08. I can buy a new one...

0 replies | 361 view(s)

18-09-2023, 11:20 PM

Tycho started a thread Tycho has a new toy! in Industrial Compressors

so happy I could cry

1 replies | 96 view(s)