Viessmann Vitodens 222-F Installation And Service Instructions Manual page 5

Index
(cont.)
9. Function description
10. Connection and wiring dia-
gram
11. Commissioning/service
reports
12. Specification
13. Certificates
14. Keyword index
Maintenance .......................................................................................... 94
Putting the control unit into the service position ................................. 94
■
Draining the boiler on the heating water side ..................................... 95
■
Checking the outside temperature sensor .......................................... 96
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Checking the boiler water temperature sensor, cylinder temperature
■
sensor or flow temperature sensor of low loss header ....................... 97
Checking the outlet temperature sensor ............................................. 98
■
Checking the plate heat exchanger .................................................... 99
■
Checking the flue gas temperature sensor ......................................... 99
■
Checking the temperature limiter ........................................................100
■
Checking the fuse ............................................................................... 101
■
Mixer extension kit .............................................................................. 101
■
Checking the Vitotronic 200-H (accessories) ......................................102
■
Control unit ............................................................................................ 103
Heating mode ..................................................................................... 103
■
Heating the DHW loading cylinder from cold ...................................... 103
■
Reheating when DHW is drawn off .....................................................103
■
Boosting DHW heating ....................................................................... 103
■
Internal extensions .................................................................................104
Internal extensions (accessories) ....................................................... 104
■
External extensions (accessories) ......................................................... 106
AM1 extension .................................................................................... 106
■
EA1 extension .................................................................................... 107
■
Control functions ....................................................................................108
External operating program changeover ............................................ 108
■
External blocking ................................................................................ 109
■
External demand ................................................................................ 109
■
Venting program ................................................................................. 109
■
Fill program .........................................................................................109
■
Screed drying ..................................................................................... 110
■
Raising the reduced room temperature .............................................. 111
■
Reducing the heat-up time ................................................................. 112
■
Assigning heating circuits to the remote control .................................... 113
Vitocom 100, type GSM: Entering PIN code via Vitotronic .................... 114
Hydronic balancing ................................................................................ 114
Electronic combustion control unit ......................................................... 114
Connection and wiring diagram
Connection and wiring diagram
................................................................................................................ 119
................................................................................................................120
Declaration of Conformity ...................................................................... 122
Manufacturer's declaration .................................................................... 122
................................................................................................................123
internal connections ......................... 116
-
external connections ........................ 117
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Index
5