Dhw" Group - Viessmann VITOTRONIC300 Installation And Service Instructions Manual

Vitotronic 300, GW2B Installation and Service

"DHW" Group

Coding in the factory set condition
55:0 DHW tank heating, hysteresis ± 2.5 K.
56:0 Set DHW temperature adjustable from
50 to 140°F (10 to 60°C).
58:0 Without auxiliary function for DHW heating.
59:0 DHW tank heating:
Set start point –2.5 K
Set stop point +2.5 K
5A:0 For DHW heating:
The set supply temperature is determined by
the highest system supply temperature
demand.
Scan of the temperature in the "Diagnosis"
menu, "General" ("Common dem. temp"),
see page 81.
60:20 During DHW heating, the common supply
temperature is max. 20 K higher than the
set DHW temperature.
61:1 The circulation pump for DHW tank heating
is started immediately.
62:10 Circulation pump with a run-on time after DHW
tank heating of max. 10 min.
64:2 During party mode and after external
changeover to constant operation with the
standard room temperature:
Constant DHW heating enabled and DHW
circulation pump "ON".
Possible change
55:1 Adaptive DHW tank heating enabled (see page 115).
55:2 DHW tank temperature control with 2 DHW tank
temperature sensors (see page 116).
55:3 DHW tank temperature control, primary store
system (see page 116).
56:1 Set DHW temperature adjustable from 50 to 203°F
(10 to 95°C).
Note: Observe the max. permissible
DHW temperature.
Adjust the temperature controller "R".
58:10 Input of a second set DHW temperature,
to adjustable from 50 to 203°F (10 to 95°C)
58:60 (observe coding addresses "56" and "63").
59:1 Start point adjustable from 1 to 10 K below set
to value.
59:10
5A:1 For DHW heating:
The set supply temperature is determined by
the DHW tank supply temperature demand.
Scan of the temperature in the "Diagnosis" menu,
"General" ("Common dem. temp"), see page 81.
60:10 The differential between the common supply
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
is started 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.
Code 2
109