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Latte
17-12-2003, 06:57 PM
Hello All,

I have got to look tommorow at a Daikin VRV. I have never even seen one before let alone worked on it. I am trying to get forwarned before i get there, this is a list of all that another engineer has found and i hope someone can give me a clue what to look for.

Fuse V1 (10amp) on top right of PCB blown
No lights on at all on PBC
U4 fault showing on controller.

Apparently there is a smaller board above the main PCB with a two wire link cable going between them. This cable had been pulled off the smaller board so assume it shouldn't effect the running as i dont think the unit has been looked at previously for some time.

Many thanks

Raymond

rbartlett
17-12-2003, 07:11 PM
take space airs phone number with you

u4 is a communication problem -usually one of the indoor units turned off
don't expect any help off the web -daikin is the worst manufacturer for putting up service stuff

http://www.macqueen-ac.co.uk/faqs.htm#q6


but with fuses blown on pcb boards then expect trouble,,oh and a big phone bill and a long day

cheers

richard

rbartlett
17-12-2003, 08:25 PM
can't believe how much more sunshine you're getting in rotherwick compared to us here...


cheers

richard

Brian_UK
17-12-2003, 10:30 PM
As a byline to this thread I hear that one of Daikins agents, Pillinger Air, is no more.

I hope no-one got caught up in their demise.

Peter_1
18-12-2003, 07:09 AM
The Daikin factory of VRV units is about 10 minutes drive for me. If you need some information, call me.

Don't have mutch time now.

Peter

rbartlett
18-12-2003, 08:56 AM
got any old tech manuals.? we have a 12 yr old split and daikin say they throw out after 7..


cheers

richard

pillinger air is owned by daikin-as is cooling services

Bones
18-12-2003, 10:28 AM
we get our daikins o/night to couple days...

however i spose our importer might have done their homework on demand levels. overall found them to work quite effectively here at 40'c ambients with great faut codes even apprentices can diagnose and fix.

Bones
18-12-2003, 10:34 AM
got any old tech manuals.? we have a 12 yr old split and daikin say they throw out after 7..


cheers

richard

pillinger air is owned by daikin-as is cooling services


if there is any companies there that have been dealing with daikin as service agents long enough u might be lucky enough to score one, we might even have some at work no promises though... whats the model number?

rbartlett
18-12-2003, 12:29 PM
it's a MY90AB1

any help mucho appreciated..

watana
18-12-2003, 01:14 PM
please check the power supply for the indoor unit, one of them switch off or fuse blown will show this U4

Peter_1
18-12-2003, 03:34 PM
Originally posted by rbartlett
got any old tech manuals.? we have a 12 yr old split and daikin say they throw out after 7..




I have MY 90CJ, MY 90B, MY90CJ7.

Can this help you and what do you need?
If you can be more specific, i can ask it in the DAIKIN factory nearby.

Peter

rbartlett
18-12-2003, 03:39 PM
yes

i believe we need the fault codes for the outdoor pcb l.e.d's

cheers

richard

Peter_1
18-12-2003, 03:39 PM
Originally posted by watana
please check the power supply for the indoor unit, one of them switch off or fuse blown will show this U4

If the varistor is blown together wth the fuse, then you propably had an overvoltage. Cut the varistor in 2 pieces with a pinch and try again. Check before if voltage is within specs. Place a new varistor (we order them by Farnell in One - UK)
Peter

Peter_1
18-12-2003, 03:54 PM
Originally posted by rbartlett
yes

i believe we need the fault codes for the outdoor pcb l.e.d's

cheers

richard

It took 6 scans of 1.097 kB. What do you suggest? Impossible to post
The led functions remains almost allways the same, independent of the model.

If anyone else need the scans, contact me.

Peter

Latte
18-12-2003, 06:42 PM
Spoken to Space Air today & found them Very Helpful,
Couldn't even get through to Daikin Themselves, didn't even answer phone.
Anyone with daikin probs would suggest phoning Space

Regards

Raymond

Bones
19-12-2003, 06:54 AM
Lucky to Go's hey mark? they have many probs here, although i may be bias as we are the service agents... and it helps if the units were installed properly in the first place. but they do make up a significant number...

PS. i will do some searching for info when i get back to work next week, a fan decided to ite me on the hand on wednesday...

frank
09-01-2004, 01:02 PM
Raymond

Are you talking about the indoor pcb or the outdoor?

We are daikin dealers and I'm trained on VRV

Sorry for the late response but I've had a nice long xmas break down under and just catching up with the posts

frank

chemi-cool
09-01-2004, 01:37 PM
hi frank,

in my country, diakin hve made thier enter just now.
I know how it works but i am looking for literature about VRV in general and diakin in particular.

I'm sure the stuff is some where on the web. can you give me some directions??

thanks,
chemi

Peter_1
09-01-2004, 02:18 PM
We installed some VRV's. +/- 15 over the years. Daikin factory is +/- a 15 min drive for me.

rbartlett
09-01-2004, 02:29 PM
http://www.bdt.co.nz/citymulti/how-2-pipe.asp

http://www.bdt.co.nz/citymulti/od_super-y.asp

good site for mitzi stuff..



cheers

richard

rbartlett
09-01-2004, 02:36 PM
and a daikin pdf

http://www.cooling-services.co.uk/downloads/literature/technical_data_books/vrv/eede01-2-15.pdf

cheers

richard

Peter_1
09-01-2004, 02:38 PM
Originally posted by rbartlett
http://www.bdt.co.nz/citymulti/how-2-pipe.asp

http://www.bdt.co.nz/citymulti/od_super-y.asp

good site for mitzi stuff..



cheers

richard

Sorry, was to quick with my response.

Anyhow, a VRV is the Daikin brand and Mitsubishi calls it VRF.

chemi-cool
09-01-2004, 02:44 PM
thanks guys,

you gave me just enough reading to do on the weekend.

by the way, thomething you didnt know, our weekend is only saturday. on sunday we are back at work!

chemi

rbartlett
09-01-2004, 03:15 PM
http://www.toshiba-aircon.co.uk/technical/manuals/MAR%20Super%20Multi/MAR%20Service/2%20Pipe%20.pdf

handy list of all toshiba online manuals-loadsof stuff

http://www.toshiba-aircon.co.uk/technical/manuals/

quick before they password protect it ;-)

cheers

richard

Peter_1
09-01-2004, 06:35 PM
Chemi,

Have perhaps also a look at the Belgium Mitsubishi BMS system site http://www.macs-bms.com/
System cost +/- 2500 , included a PC.

chemi-cool
09-01-2004, 08:36 PM
thanks peter,
i have downloaded everything that was offerd to me and tomorow I will start the reading.

chemi

frank
10-01-2004, 05:03 PM
This is the only on line manuals I could find and gives all you should need to know about designing a system or servicing one.

http://www.cooling-services.co.uk/downloads/literature/technical_data_books/vrv/eede01-2-15.pdf

Space Air don't post manuals on line but they do have information available in their dealer section. Not much use to anyone who doesn't have a dealer password to access it though. If you have any specific design questions or trouble shooting problems just ask.

The MY90 is a multi split heat pump unit capable of connecting 5 indoor units. The 'A', 'C' designation after the model number denotes the series. This unit has both a 240v and 415v feed to the outdoor unit and you must energise the 250v feed before the 415v feed other wise it will fault.

A U4 fault on the controller indicates an indoor/outdoor communication problem. If you have a dead indoor pcb then you won't get a display showing on the controller.

Latte
10-01-2004, 06:29 PM
Hello all,
with regards to the original fault it turned out to be one of the condenser fans on the top was u/s.
I think it had got some water into it because once it was up & running after a few blown fuses it worked ok. Obviously i have ordered a new one.
Anyone has a problem with one of these i couldn't recomend Space more highly. They were very helpful on the phone & didn't have the attitude like some technical support offices who give the impression what are you doing working on this !.

Regards

Raymond

lin
20-01-2004, 12:31 PM
Hi, everyone.
I found a backdoor on a daikin relative site. most of literatures are password protected, but the mechanism is weak. i can't tell how to download,but i will copy them if anyone need.

http://member.netease.com/~lincheng/daikin/servicemanual-electronic.pdf

my poor homepage,maybe a little slow, please be patient.

rbartlett
22-01-2004, 08:50 AM
lin

that daikin pdf was pretty good..i will print it out for my guy's..any more??

cheers

richard

Peter_1
22-01-2004, 11:07 AM
Lin,

That link is indeed VERY good.
I printed it out some times and gave it as Richard did to our technicians so that they can learn a little bit the electronics.
Never saw this before in any manual of Daikin (and i have here a lot of them)

If you can 'grab' some more of those, don't hesitate to share them. They're very usefull.

lin
22-01-2004, 11:29 AM
Here is 2 other:

http://member.netease.com/~lincheng/daikin/compressorcheckpoint.pdf
http://member.netease.com/~lincheng/daikin/noisetrouble.pdf

I'm still on the way of "grab" more, i will post them here one by one.
Please enjoy silently, then we will keep up with their any new update.

Peter_1
22-01-2004, 11:51 AM
Strange, the 1st manual came from Ostend (the European factory here nearby, +/- 15 miles) and never saw such a manual before.
I think they will be very usefull also.

I said this to MarcFiddi, I also have (printed versions) of Smeva counters Showmaster. If anyone needs sometimes some information, call me.


Peter.

rbartlett
22-01-2004, 03:10 PM
yes many thanks lin ..;-)

i have saved them to my p.c so if the link disappears i can always get it...


cheers

richard

chemi-cool
22-01-2004, 04:25 PM
thanks lin ,
I've read the whole thing. very interseting .
this year is the first year that daikin is entering our market.

it will be dificult for them as its hard to find a house without air-conditioner in it.

by the way, most of the stuff being sold here, comes from your counry. but the best and more expensive is local made.

chemi

rbartlett
23-01-2004, 08:03 AM
the best ? please let me know which manufacturer you are thinking of -not amcor surely??

cheers

richard

chemi-cool
23-01-2004, 12:17 PM
hi richard,

defenatly not amcor, they are no longer on the map!! piece of sh..t.

tadiran, elco and electra. three very good companies.
elco is one the biggest companies in the world, manufactur in israel, china, europe, australia, electronic - boards factory in hong-kong and many marketing companies all over the world.

we sell over here over 100000 units per year.
just yesterday I got a lorry full, thats 35 units and they already sold!!

I personaly work with tadiran, carrier is holding 30% of them so big brother is watching of the quality, and they are good.

chemi

chemi-cool
23-01-2004, 12:20 PM
hi richard,

defenatly not amcor, they are no longer on the map!! piece of sh..t.

tadiran, elco and electra. three very good companies.
elco is one the biggest companies in the world, manufactur in israel, china, europe, australia, electronic - boards factory in hong-kong and many marketing companies all over the world.

we sell over here over 100000 units per year.
just yesterday I got a lorry full, thats 35 units and they already sold!!

I personaly work with tadiran, carrier is holding 30% of them so big brother is watching of the quality, and they are good.

many small importers bring cheap units from china but they are improving rapidly. so far they are not too reliable.

at home I have three elco and one sanyo from thier factory in italy.

chemi

rbartlett
23-01-2004, 01:34 PM
i saw my first elco on a job for marc..

these were a few yrs old but based on those-'okay' is about as far as i'd go...

cassette quality -upper 'budget' condensers big heavy
no diagnostics etc..

daikin are very good quaility wise -ask peter1 for a trip to the factory- a really excellent facility

carrier splits are only okay if toshiba are involved ( carrier have been re-badging tosh for 20yrs or so)

cheers

richard

chemi-cool
23-01-2004, 03:16 PM
well richard,
I can not argue with that. I agree that world wide best split air conditioners are the japanees. but they are not available everywhere.
childish political reasons avoided the japanees companies from selling over here.

within the local market, the companies I have mentioned, are the best.

in my living room there is an elco split for 11 years. nver touched it exept for cleaning filters or washing condenser after a sand storm. I call that exelance. controls by motorola.

if all air coditioners would have been so reliable, most of us would have been plumbers or electricians or god knows what.

the expected "life" should be about 5-6 years.

I defenatly take your invitation to visit daikin with peter in belgium and finish the tour at his wife's tea - room for a pint of good ale.
will you come too?

chemi

rbartlett
23-01-2004, 06:05 PM
yes -lets all invite ourselves to peters' house !! ;-)

cheers

richard

lin
26-01-2004, 08:44 AM
Going on,

http://member.netease.com/~lincheng/daikin/k-series.pdf
http://member.netease.com/~lincheng/daikin/plus-series-troubleshooting.pdf
http://member.netease.com/~lincheng/daikin/plus-series.pdf
http://member.netease.com/~lincheng/daikin/r407c.pdf

Because of space limit is reached, i will delete all them for other literatures, so please download soon.

Peter_1
26-01-2004, 09:26 AM
Hi all,

Read all the post the last days but I was too busy preparing my theoretical flying lessons (descending, turning and banking and stall) which I had to give last Saturday.

Sure, I can arrange a visit in Ostend but frankly, this is not so nearby for most of you all.
Even for us, when we have to order something, we must go via the Belgium Daikin sales office in Brussels.
We had once a broken Daikin compressor in a factory (KODAK) in the same street as the Daikin factory. It took 3 days before it was delivered. They then decided to never install Daikin anymore.
It became Carrier (it can now last 3 weeks before we have one :) )

Sure, Chemi can then afterward drink her Abbye Beer (9,5%) and her famous Poffertjes or taste one of the 25 different variations of coffee.

On her website, I have translated (from the English) the strange story of the most expensive coffee in the world (only 500 lbs or 250 kg production in a year) Kopi Luwak.
She don't sell it !!

http://dreamship.com/kopi_luwak.htm

Lin and the others, If you need something from Mitsubishi, I have a CD with all the service manuals

rbartlett
26-01-2004, 02:17 PM
lin

is it http://www.cooling-services.co.uk??

cheers

richard

lin
27-01-2004, 12:26 AM
sh
let them sleep. i still wait for their vrv2-plus manuals(still havn't gone to europe?)

rbartlett
27-01-2004, 08:43 AM
cool

but i have password too :-))

Brian_UK
27-01-2004, 11:02 PM
but i have password too :-))
OK, Richard.....give ;)

frank
06-02-2004, 12:33 PM
We've just got our hands on the VRV II tech manuals on CD :D