C/H and H/W controller replacement help please

[Hollybobs]

Hi there,

I have a rather old and now rather broken Landis and Gyr Crossling Controller. I can still activate the heating and hot water with the slide switches, but the mechanics for the clock are in bits, and no longer working.

Central Heating and Hot Water i.e. boiler side of things are fine, I have an old Potterton Nettaheat 16 - 22.

What would be the best bet (easiest ) to replace the programmer with?

I have got a basic Drayton Lifestyle LP522 but it is all gobbledegook. Is there an easier option?

Any advice gratefully recieved.
Thanks in advance,
H

 

[heatserve]

This might help. But then again, it might not as I didn't read it. It definitely mentions your programmer though.

 

[Hollybobs]

This might help. But then again, it might not as I didn't read it. It definitely mentions your programmer though.

Thanks very much for finding that for me, it didn't come up in any of my searches! If no other info comes from this forum, may well purchase the chapter to read the full version.
H

 

[heatserve]

The LP522 is a good programmer. Why not just someone competent in to install it? it shouldn't cost too much.

 

[Hollybobs]

The LP522 is a good programmer. Why not just someone competent in to install it? it shouldn't cost too much.

Am just hoping it is compatible with the system, and yes, that's the sensible plan, just hate giving in!
H

 

[Hollybobs]

The LP522 is a good programmer. Why not just someone competent in to install it? it shouldn't cost too much.

I have just found a Drayton tempus seven in the shed, knew I had bought something ages ago, but couldn't find it. Will that do the job do you think?
Thanks in advance
H

 

[D_Hailsham]

I have just found a Drayton tempus seven in the shed, knew I had bought something ages ago, but couldn't find it. Will that do the job do you think?

Yes, that can be used.

Does your existing timer allow you to have Hot Water only, or Hot Water and Central Heating? i.e you can't have Central Heating by itself. If so you must set the Jumper on the back to the B position. The other jumper gives 7 day mode in C position and 5/2 day mode in D position. Or you can also use the LP522, but the switch on the back must be set to G.

If you can have CH on its own, the jumper should be set to A or the switch to P (pumped).

You will have to replace the backplate and the wiring terminals are not the same.

 

[Hollybobs]

I have just found a Drayton tempus seven in the shed, knew I had bought something ages ago, but couldn't find it. Will that do the job do you think?

Yes, that can be used.

Does your existing timer allow you to have Hot Water only, or Hot Water and Central Heating? i.e you can't have Central Heating by itself. If so you must set the Jumper on the back to the B position. The other jumper gives 7 day mode in C position and 5/2 day mode in D position. Or you can also use the LP522, but the switch on the back must be set to G.

If you can have CH on its own, the jumper should be set to A or the switch to P (pumped).

You will have to replace the backplate and the wiring terminals are not the same.

Thankyou.
Yes, to all of the above, and was aware of the jumpers needing correctly placing. I have downloaded the installation instructions for the nice electrician who will be fitting it (when I find one, and some more jobs making it worth his while coming round).
Tha backplate issue is confusing me slightly, do I need to purchase anything to go with the unit?
Cheers,
H

 

[D_Hailsham]

Tha backplate issue is confusing me slightly, do I need to purchase anything to go with the unit?

The programmer will come complete with backplate.