Viessmann Vitotronic 300 Installation And Service Instructions Manual page 70

Code 2
"DHW" Group
Coding in the delivered condition
59:0 DHW tank heating:
Set start point –2.5 K
Set stop point +2.5 K
5A:0 For DHW heating: The set boiler water
temperature is determined by the highest
system supply temperature demand. Scan of
the temperature in the "Diagnosis" menu,
"General" ("Common dem. temp"), see page 58.
60:20 During DHW heating, the boiler water
temperature is max. 20 K higher than
the set DHW temperature.
61:1 The circulation pump for DHW tank heating
starts immediately.
62:10 Circulation pump with a run-on time of up to 10
min after DHW tank heating.
64:2 During party mode and after external changeover
to constant operation with the standard room
temperature: Enable constant DHW heating and
DHW circulation pump "ON".
66:4 Input of the set DHW temperature: At the
control unit programming unit and all installed
Vitotrol 300A remote controls.
67:40 For solar DHW heating: Set DHW temperature
40° C. Reheating is suppressed above the
selected set temperature (DHW heating by the
boiler only if solar energy is not sufficient).
70
(continued)
Vitotronic 300, GW5B Installation and Service
Possible change
59:1 Start point adjustable from
to 1 to 10 K below set value.
59:10
5A:1 For DHW heating: The set boiler water
temperature is determined by the DHW tank
supply temperature demand.
Scan of the temperature in the "Diagnosis"
menu, "General" ("Common dem. temp"),
see page 58.
60:10 The differential between the boiler water
to temperature and the set DHW temperature
60:50 is adjustable from 10 to 50 K.
61:0 The circulation pump for DHW tank heating starts
depending on the boiler water temperature.
62:0 Circulation pump without run-on.
62:1 Run-on time adjustable from 1 to 15 min.
to
62:15
64:0 No DHW heating, DHW circulation pump "OFF".
64:1 DHW heating and DHW circulation pump
according to time program.
66:0 No DHW heating, DHW circulation pump "OFF".
66:1 At the control unit programming unit and
remote control heating circuit without
mixing valve A1 (heating circuit ).
66:2 At the control unit programming unit and
remote control, heating circuit with mixing
valve M2 (heating circuit 2).
66:3 At the control unit programming unit and
remote control, heating circuit with mixing
valve M3 (heating circuit 3).
66:5 At the remote control heating circuit without
mixing valve A1 (heating circuit 1).
66:6 At the remote control, heating circuit with
mixing valve M2 (heating circuit 2).
66:7 At the remote control, heating circuit with
mixing valve M3 (heating circuit 3).
67:0 No set value 3.
67:10 Set DHW temperature adjustable from
to 50 to 203°F (10 to 95°C) (limited by
67:95 boiler-specific parameters).
Observe the setting of coding address "56".