Viessmann GC1 - DHW Group

Vitotronic 100, GC1B / Vitotronic 300-K, MW1B Installation and Service
5793 309 - 05
142
“Cascade” Group (continued)
Coding 2, Vitotronic 300-K
Coding in the factory set condition Possible change
43:31 No ECO threshold boiler 3. 43:−30
to
43:+30
ECO threshold boiler 3 adjustable from
-22 to +86°F (−30 to +30°C).
44:31 No ECO threshold boiler 4. 44:−30
to
44:+30
ECO threshold boiler 4 adjustable from
-22 to +86°F (−30 to +30°C).
45:60 Start integral threshold set to 60 K x min. 45:1
to
45:255
Start integral threshold adjustable from 1 to
255 K x min.
Note: If the threshold is exceeded, one boiler
or one burner stage is switched on.
46:40 Stop integral threshold set to 40 K x min. 46:1
to
46:255
Stop integral threshold adjustable from 1 to
255 K x min.
Note: If the threshold is exceeded, one boiler
or one burner stage is switched off.
47:15 Stop differential set to 15 K. 47:2
to
47:30
Stop differential adjustable from 2 to 30 K.
Note: One boiler or one burner stage will
be switched off if the actual supply
temperature exceeds the set supply
temperature by this value.
48:35 Do Not Adjust. -- --
49:40 Do Not Adjust. -- --
Coding in the factory set condition Possible change
55:0 DHW tank heating, hysteresis ± 2.5 K. 55:1 Adaptive DHW tank heating enabled.
55:2 DHW tank temperature control with 2 DHW tank
temperature sensors.
55:3 DHW tank temperature control, primary store
system.
56:0 Set DHW temperature adjustable from 50 to
140°F (10 to 60°C).
56:1 Set DHW temperature adjustable from 50 to 194°F
(10 to 95°C).
Note: Observe the max. permissible DHW
temperature.
Adjust the adjustable high limit “R”.
58:0 Without auxiliary function for DHW heating. 58:10
to
58:60
Input of a second set DHW temperature,
adjustable from 50 to 194°F (10 to 95°C).
(observe coding addresses “56” and “63”).
59:0 DHW tank heating:
Set start point –2.5 K
Set stop point +2.5 K
59:1
to
59:10
Start point adjustable from 1 to 10 K below set
value.
5A:0 For DHW heating:
The set supply temperature is determined
by the highest system supply temperature
demand.
5A:1 For DHW heating:
The set supply temperature is determined by the
DHW tank supply temperature demand.
60:20 During DHW heating, the common supply
temperature is max. 20 K higher than the set
DHW temperature.
60:10
to
60:50
The differential between the common supply
temperature and the set DHW temperature is
adjustable from 10 to 50 K.
61:1 The circulation pump for DHW tank heating is
started immediately.
61:0 The circulation pump for DHW tank heating is
started depending on the boiler water temperature.
“DHW” Group