Weather-compensated heating controller with microcomputer room unit FZL10. Replaced by RVP201.0 which has the same dimensions and panel cut-out. A 
Key data to replacement product: room unit (QAW70) must be installed - all other sensors and valves can be re-used. 
Info: Do not use the existing base as terminals are different - the 
Key data to replacement product: unit must be rewired (see Data Sheet).