5
Putting the control unit into the service position ................................. 96
Draining the boiler on the heating water side ..................................... 96
Checking the outside temperature sensor .......................................... 97
Checking the flue gas temperature sensor ......................................... 99
Checking the temperature limiter ........................................................100
Checking the Vitotronic 200-H (accessories) ......................................102
Weather-compensated heating mode .................................................103
Constant temperature heating mode .................................................. 103
Boosting DHW heating ....................................................................... 103
Internal H1 extension ..........................................................................104
Internal H2 extension ..........................................................................105
External extensions (accessories) ......................................................... 106
External operating program changeover ............................................ 108
External demand ................................................................................ 109
Raising the reduced room temperature .............................................. 111
Reducing the heat-up time ................................................................. 112
10. Connection and wiring dia-
internal connections ......................... 115
external connections ........................ 116
Declaration of Conformity ...................................................................... 120
Index
Index
(cont.)
5778741