Velux TFF 200 Directions For Use Manual page 40

SECTION III: SOLAR CONTROL SYSTEM
System survey:
ARR 1: Standard solar system
ARR 2: Solar system with heat exchange
ARR 3: Solar system with after-heating
ARR 4: Solar system with store charge in layers
ARR 5: 2-store solar system with valve logic
ARR 6: 2-store solar system with pump logic
ARR 7: Solar system with 2 collectors and 1 store
ARR 8: Solar system with after-heating by solid fuel boiler
ARR 9: Solar system with heating circuit reverse raising
ARR 1
ARR 4
ARR 7
40 VELUX
ARR 2
ARR 5
ARR 8
ARR 3
ARR 6
ARR 9