Landis & Gyr central heating programmer

[kamrulislam]

Hi,
my central heating programmer is very old and part broken. It is a
Glo Warm boiler " Landis & Gyr" type controller with seperate heating
& hot water controls.( Alalogue Type ) . I was told that " Siemans"
controller will fit without changing the back plate ( thus touching any
wirings). Could you please tell me which model of "Siemens" cintroller
could be fitted without taking the existing back plate.

Regards
Kamrul

 

[doitall]

What is the exact model of the existing

 

[Boilerman2]

Seimensd RWB2E straight Swap!!

 

[kamrulislam]

Thanks for your response, there is no marking in the controller, however
I was told that it is Landis & Gyr RBW2.

 

[doitall]

Yes as Boilerman2 posted the RWB2e is a straight swap, same backplate.