General" Group - Viessmann Vitotronic 300 Installation And Service Instructions Manual

Vitotronic 300, GW5B Installation and Service

"General" Group

Coding in the delivered condition
System design
00:1 One heating circuit without mixing valve A1
(heating circuit 1), without DHW heating.
Value Description
address
00: ...
2 One heating circuit without mixing valve A1 (heating circuit 1) with DHW heating;
automatic recognition.
3 One heating circuit with mixing valve M2 (heating circuit 2) without DHW heating
4 One heating circuit with mixing valve M2 (heating circuit 2) with DHW heating
5 One heating circuit without mixing valve A1 (heating circuit 1)
One heating circuit with mixing valve M2 (heating circuit 2) without DHW heating;
automatic recognition.
6 One heating circuit without mixing valve A1 (heating circuit 1)
One heating circuit with mixing valve M2 (heating circuit 2) with DHW heating;
automatic recognition.
7 Two heating circuits with mixing valve M2 (heating circuit 2) and M3 (heating circuit 3)
without DHW heating
8 Two heating circuits with mixing valve M2 (heating circuit 2) and M3 (heating circuit 3)
with DHW heating
9 One heating circuit without mixing valve A1 (heating circuit 1)
Two heating circuits with mixing valve M2 (heating circuit 2) and M3 (heating circuit 3)
without DHW heating; automatic recognition.
10 One heating circuit without mixing valve A1 (heating circuit 1)
Two heating circuits with mixing valve M2 (heating circuit 2) and M3 (heating circuit 3)
with DHW heating; automatic recognition.
Coding in the delivered condition
12:5 With extension EA1: DHW circulation
pump runtime for brief operation: 5 min
1E:0 With extension EA1 (analogue input
0–10V): Temperature demand from
32 to 212°F (0 to 100°C):
1V ≙ 50°F (10°C)
10V ≙ 212°F (100°C)
20:... Controller integral time for low loss
header in sec. Delivered condition
defaulted by the boiler coding card.
The greater the integral action time,
the more accurate but slower the
controller.
22:... Controller integral time for low loss
header in min: time between burner start
and controller start.
Delivered condition defaulted by the
boiler coding card.
Possible change
00:2 For system schemes, see the following table.
to
00:10
Possible change
12:1 Runtime adjustable from 1 to 60 min.
to
12:60
1E:1 Temperature demand from
86 to 248°F (30 to 120°C):
1V ≙ 86°F (30°C)
10V ≙ 248°F (120°C)
20:1 Controller integral time adjustable
to from 10 to 1990 s;
20:199 1 step ≙ 10 sec.
22:1 Controller integral time adjustable from
to 1 to 199 min.
22:199
Code 2
63