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29-11-2023, 04:18 PM

Jaeger replied to a thread Dehumidifier Plan for wet house Scuppered! in Chit Chat & Service Stories

Don't know Sean, I have no valves to connect to yet!

4 replies | 44 view(s)

29-11-2023, 04:17 PM

Jaeger replied to a thread Dehumidifier Plan for wet house Scuppered! in Chit Chat & Service Stories

A local as far out as Preston would be welcomed can transport it to them. I don't want to be set up as an engineer. I can get the pierce valves on...

4 replies | 44 view(s)

29-11-2023, 03:28 PM

seanf replied to a thread Dehumidifier Plan for wet house Scuppered! in Chit Chat & Service Stories

Is the compressor building pressure/creating a vacuum ok?

4 replies | 44 view(s)

29-11-2023, 03:07 PM

frank replied to a thread Dehumidifier Plan for wet house Scuppered! in Chit Chat & Service Stories

With no valves on the pipework, it is classed as an 'hermetic system' You will need a line tap valve, recovery unit, cylinder and scales. Then you...

4 replies | 44 view(s)

29-11-2023, 02:37 PM

Jaeger started a thread Dehumidifier Plan for wet house Scuppered! in Chit Chat & Service Stories

Needing help in the Northwest, Blackpool area. Anyhows. Bought a damp house and investigating and planning restoration, some of it can't be done...

4 replies | 44 view(s)

29-11-2023, 12:40 PM

seanf replied to a thread Strange drop in compressor flow in NH3

Are the ammonia liquid levels ok in the low pressure receiver? and high pressure receiver if it has one. Is there any noticable liquid level changes...

1 replies | 51 view(s)

29-11-2023, 01:46 AM

aakbar started a thread Strange drop in compressor flow in NH3

Hi everyone, We are facing a strange issue. After we start up the system we notice quite a lot of drop in compressor discharge flow....

1 replies | 51 view(s)

28-11-2023, 10:28 PM

frank replied to a thread Daikin Atherma model EMRQ8AAY1 in Heat Pumps

Hi Elizabeth Welcome to the forum Please see post number 5

7 replies | 215 view(s)

28-11-2023, 08:40 PM

Elizabeth replied to a thread Daikin Atherma model EMRQ8AAY1 in Heat Pumps

Hey Guys, The left-hand component operates through an inverter drive. The idea is that once the faulty component on the right side is addressed in...

7 replies | 215 view(s)

23-11-2023, 11:21 PM

seanf replied to a thread close contol design in Technical Speculations

Using the Carrier psychrometric chart, maybe something like: Starting at 12C 100%RH, Enthalpy: 34.2 kJ/kg. Finish at 23C 50%RH, Enthalpy:...

5 replies | 186 view(s)

23-11-2023, 02:44 PM

seanf replied to a thread close contol design in Technical Speculations

Would plotting the points on a chart help? Something like https://www.flycarpet.net/en/psyonline or ...

5 replies | 186 view(s)

23-11-2023, 01:03 PM

AndyT539 replied to a thread close contol design in Technical Speculations

Hi Sean, Yes as tight as we can within reason hence why we are on chilled water with motorised actuator and thryrister heating to pulse when on...

5 replies | 186 view(s)

23-11-2023, 12:34 PM

seanf replied to a thread Actron soft starter, rewired to DOL in Air Conditioning

https://www.copeland.com/documents/single-phase-scroll-compressor-start-assist-components-technical-information-en-gb-7684640.pdf Doesn't seem to...

1 replies | 116 view(s)

23-11-2023, 09:11 AM

frank replied to a thread Daikin RY125KY1 - Only one fan spinning. in Air Conditioning

If your indoor unit is achieving the desired temperature then there is no fault. Had this same situation many a time with the old RY series

6 replies | 996 view(s)

23-11-2023, 06:12 AM

Icemaker10 started a thread Actron soft starter, rewired to DOL in Air Conditioning

Have an 18kW Actron single phase split ducted, SRD181C-0200 with Copeland scroll ZPD67KCE compressor. The unit has killed 4 soft starters in 12...

1 replies | 116 view(s)

23-11-2023, 06:01 AM

Icemaker10 replied to a thread Daikin RY125KY1 - Only one fan spinning. in Air Conditioning

I had one doing the same, found neutral track on the board gone. Board was no longer available at that time, I just wired the neutral from the fan...

6 replies | 996 view(s)

22-11-2023, 09:58 PM

seanf replied to a thread close contol design in Technical Speculations

Does the humidity of the air at the outlet need to be within the 4% control?

5 replies | 186 view(s)

22-11-2023, 03:12 PM

frosasanto replied to a thread Daikin Multi - Old system in Trouble Shooting

Well, couldnt find anything. had some maintnance guys comming in, cleaning all 5 devices and figuring out the issue on this one and they say its IR...

5 replies | 189 view(s)

22-11-2023, 11:31 AM

Iggerst replied to a thread Hello in New to RE

Helo. I'm new in the forum. amanda the adventurer

2 replies | 285 view(s)

21-11-2023, 08:59 PM

narkom replied to a thread close contol design in Technical Speculations

Sensible capacity is the answer.

5 replies | 186 view(s)

20-11-2023, 08:51 PM

frosasanto replied to a thread Daikin Multi - Old system in Trouble Shooting

I’m searching for “old” original documents. If I find them I will share. Certainly many others probably still have these machines!! I’ll look into...

5 replies | 189 view(s)

20-11-2023, 07:25 PM

frank replied to a thread Daikin Multi - Old system in Trouble Shooting

It's been quite a while since I worked on the old R22 multi system. On the indoor pcb, I think the jumper is referenced J13. If you see this cut,...

5 replies | 189 view(s)

20-11-2023, 06:24 PM

frosasanto replied to a thread Daikin Multi - Old system in Trouble Shooting

Hi Frank, thanks for the reply. All 5 remotes work on all other units. None of them seems to turn this unit on. Can you let me know where...

5 replies | 189 view(s)

20-11-2023, 05:16 PM

frank replied to a thread Daikin Multi - Old system in Trouble Shooting

I'm assuming that you have the standard hand held infra red remote controller? There is an option to change the frequency on these. With many...

5 replies | 189 view(s)

20-11-2023, 05:06 PM

Stretch79 replied to a thread Mitsubishi AC systems in Trouble Shooting

Please delete post, unsure how, thanks

1 replies | 86 view(s)

20-11-2023, 04:28 PM

AndyT539 started a thread close contol design in Technical Speculations

Hi I have an area 14m long 8m wide 3m high which requires 23 c 50% rh on tight control I am going to use chilled water and thyristor heaters I...

5 replies | 186 view(s)

20-11-2023, 04:06 PM

Stretch79 started a thread Mitsubishi AC systems in Trouble Shooting

Hi all, Just wondered if anyone here could help with the below? A client has 2 Mitsu systems, 1 x PEAD-RP100JAQ on a PUHZ-P100YHA2 unit 1 x...

1 replies | 86 view(s)

20-11-2023, 02:26 PM

frosasanto started a thread Daikin Multi - Old system in Trouble Shooting

Hi all, new to the forum (this or any) Got here searching the web and, actaully, the only result on google realetd to the air con pointed me here!...

5 replies | 189 view(s)

20-11-2023, 11:58 AM

cricri replied to a thread Stal ATC100 discharge control valve in Industrial Compressors

Hello Garyb, It could be this valve but I have no document, This supplier could help..??

1 replies | 145 view(s)

20-11-2023, 02:31 AM

garyb started a thread Stal ATC100 discharge control valve in Industrial Compressors

Hi team Does anyone have the manual pages for a Stal ATC100 discharge pressure control valve? They were standard on the Mk2 S26 skids and I need...

1 replies | 145 view(s)