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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> ACL Lifestyle Model LP722 Programmer https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1140283050 Message started by rgirling on Feb 18^th, 2006, 5:17pm

Title: ACL Lifestyle Model LP722 Programmer
Post by rgirling on Feb 18^th, 2006, 5:17pm

I hope that this is the right section of the forum?

After a brief power cut last night, I found that - apart from the other usual stuff (microwave, clocks, etc.) - I had to re-do my CH programmer. It's the model as in the post title and has a "Battery Reserve" of "Display - typically 1 hour; Programme - Typically 3 weeks."

The power cut was all of five minutes, yet the backup battery didn't do its job, so I must assume (after nearly eight years) that it's had it.

My question is - is the battery replaceable, or do I need to get a new programmer? I quite often use the "Holiday" facility and find it useful, so recommendations on a replacement make/model would also be greatly appreciated. TIA!

Ray.

Title: Re: ACL Lifestyle Model LP722 Programmer
Post by CWatters on Feb 18^th, 2006, 5:36pm

All I could find using Google was this which says it's a Lithium battery and "no user servicable parts inside"...

http://72.14.207.104/search?q=cache:G838siCZ3mgJ:www.invensyscontrolseurope.com/lwwcm/resources/file/eb0b5d023fe8bc5/LP%2520Brochure%2520final1.pdf+LP722+site:http://www.invensyscontrolseurope.com&hl=en&ct=clnk&cd=1

However it could well be a standard PCB mounted Lithium cell available from Farnell for a few pounds.

If all else fails it seems you can still get that model timer..

http://www.h-i-e.co.uk/acatalog/acl_drayton.html

http://www.gasapplianceguide.co.uk/drayton_central_heating_controls.htm

Title: Re: ACL Lifestyle Model LP722 Programmer
Post by rgirling on Feb 23^rd, 2006, 4:48pm

Thanks for confirming what I'd thought - new programmer was the order of the day.

However, good news - I got it replaced free within my service contract! :)

Ray.

Title: Re: ACL Lifestyle Model LP722 Programmer
Post by zharlow on Oct 23^rd, 2014, 4:20pm

I have an ancient "Appliance Components Ltd." LS722 where it is no longer possible to read the LCD display. I understand that the Drayton LP722 programmer is supposed to be a direct "plug-in" replacement. Are the back panels absolutely 100% identical?

I ask because I know from personal experience that there was a change in the LP722 back panel some time back as a result of which the latest programmer could no longer fit the "old" back panel. I think that it might have been related to the earth wire?

Thanks

Title: Re: ACL Lifestyle Model LP722 Programmer
Post by thescruff on Oct 23^rd, 2014, 5:32pm

wrote on Oct 23^rd, 2014, 4:20pm:

Hi,

They are both the same configuration regarding connections and numbering so one could expect the same back plack.

Failing al else you would just need to mark the numbers on the cable and connect like for like.

1-1
3-3
4-4
L-L
N-N

There will be a switch for gravity how water or fully pump that will need checking/setting

Title: Re: ACL Lifestyle Model LP722 Programmer
Post by CWatters on Oct 23^rd, 2014, 5:33pm

I'm not a trade so you may get a better answer if you wait. EDIT TheScruff beat me to it!

Google found this.

http://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCEQFjAA&url=http%3A%2F%2Fwww.hvac.ir%2Findex.php%2F2012-10-12-23-29-01%2Fdownload-center%2Febook-download%3Fdownload%3D35%3Adomestic-central-heating-wiring-systems-and-controls&ei=vStJVIzfIsbP7QbFzoCgCw&usg=AFQjCNH_f9rMLpFDxAa9hHHWmQ1vATjCUQ&sig2=F2J2f-7aynsKE3jzJn1RKw

Ignore the first page (which is in Arabic !) and scroll down to page 261.. "Interchangeability guide for programmers and time switches"

It says

Quote:

The following groups of programmers and time switches can usually be directly interchanged without changing the backplate. However, backplate design may vary making a straight exchange impossible, e.g. a Landis & Gyr RWB2 will not fit an ACL 722 backplate but the reverse is possible.This is due to the provision of an earth terminal on the ACL backplate. Note also that it would be good working practice to change the backplate, as occasionally the contacts become worn and give rise to a fault situation that could mislead the engineer into suspecting that the programmer or time switch is faulty.