Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions Manual page 129

Coding 2
(continued)
Overview of all codings (continued)
Coding as per Function
factory setting
Address: Value
*1
b0: 0 Boiler
circuit/
mixing
valve
circuit i i
*
b1: 0 1 Boiler
circuit/
mixing
valve
circuit
*1
b2: 8 Boiler
circuit/ circuit/
mixing
valve
circuit
*
b3: 0 1 Boiler
circuit/
mixing
valve
circuit
*1
b5: 0 Boiler
circuit/
mixing
valve
circuit
*1
Change the coding for the system circuit only on boilers without a minimum temperature limit or for the heating circuit with mixing
valve if the remote control is effective for this heating circuit.
In conjunction with remote
control:
Weather-compensated
operation in normal heating p g
mode and reduced operation d d d d i
In conjunction with remote
control:
Without pure room
temperature control
In conjunction with remote
control and for the heating control and for the heating
circuit, operation with room
temperature control must be
coded
Room influence factor: 8
In conjunction with remote
control and for the heating
circuit, operation with room
temperature control must be
coded
Basic value: 53°C /
In conjunction with remote
control:
No room temperature
controlled heating circuit
pump logic function
New coding Possible change
Address:
Value
b0: 1 Weather-compensated operation in
normal heating mode and with room
temperature dependent control
switched on for reduced operation
b0: 2 Room temperature dependent control
switched on for normal heating
mode and weather-compensated
operation for reduced operation
b0: 3 Room temperature dependent control
switched on for normal heating
mode and for reduced operation
b1: 1 Heating circuit with room
temperature dependent control
b2: 0 Without room influence
b2: 1 Room influence factor adjustable
to from 1 to 31
b2: 31
b3: 1 Basic value: 38°C
b5: 1 Heating circuit pump OFF if
actual room temperature
(RT ) is 1 K higher than desired
act
room temperature (RT
RT > RT
act
Heating circuit pump ON if
actual room temperature (RT
is 1 K lower than desired room
temperature (RT
RT < RT
act
Additional information
)
des
+ 1 K
des
)
act
)
des
+ 1 K
des
129