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Mend Landis & Gyr SIGMAGYR OSC20 Home Heating Systems

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Mend Landis & Gyr SIGMAGYR OSC20 Control Help Manual

control panel?

Can anybody help me,im looking for a manual landis and gyr sigmagyr osc20.We dont have one and we need to change the programme times.Thanks

Paul
December 2010
Landis & GyrLandis & Gyr SIGMAGYR OSC20Heating, Home Heating SystemsControl Help Manual
I have an osc 20 in working order and it seems quite easy to operate I have managed to set the time and clear a holiday setting I dont have a User manual I have looked in side and it is based on the Z80 CPU with the software in an Eprom 27C64 8kb rom
the fast run button sequenses through the settings controling the system as well pressing AUTO will return to normal at any time I havent ventured ferther yet.

Kenn
January 2015

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