Viessmann Vitodens 242-F Operations Instructions download pdf (Page 112)

112

External heating program changeover

The "External heating program change-

over" function is connected via external

extension input "

aVD

". You can select

which heating circuits the heating pro-

gram changeover affects in coding

address "91":

Heating program changeover Coding

No changeover 91:0

Heating circuit without mixer A1 91:1

Heating circuit with mixer M2 91:2

Heating circuit without mixer and heating circuit with mixer 91:3

You can select in which direction the

heating program changes over in coding

address "D5":

Heating program changeover Coding

Changeover towards "Permanently reduced" or "Permanent

standby" mode (subject to the selected set value)

d5:0

Changeover towards "Constant heating mode" d5:1

The duration of the heating program

changeover can be adjusted in coding

address "F2":

Heating program changeover Coding

No heating program changeover F2:0

Duration of the heating program changeover 1 to 12 hours F2:1 to

F2:12

The heating program changeover stays

enabled for as long as the contact

remains closed, but at least as long as

the duration selected in coding address

"F2".

Function description

Control functions

5418 193 GB

1 2 ... 107 108 109 110 111 112 113 114 115 116 117 ... 143 144

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Viessmann Vitodens 242-F Operations Instructions Page 112