Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions Manual page 109

System components
Remote control
(continued)
D
D Printed Circuit Board DIP switches
(rear of the top casing)
Remote control DIP switch
affects setting
System circuit A1 Factory setting
(Heating circuit
selection
button !)
Mixing valve
circuit M2
(Heating circuit
selection
button ?)
Mixing valve
circuit M3
(Heating circuit
selection
button §)
When connecting a separate room
temperature sensor, set DIP
switch S30.3 to ON.
S30
(continued)
Specification
Power supply via 145 KM BUS.
Safety class:
Protection:
Permiss. ambient
temperature
In use:
0 to +40°C
32 to 104°F
In storage and transport:
Setting range for
Normal set room temp:
adjustable between
or
via coding address E1
Reduced set room temp:
Battery type:
III
IP 30
–20 to +65°C
–4 to +149°F
10 to 30°C;
50 to +86°F
3 to 23°C
37 to 73°C
17 to 37°C
63 to 97°F
3 to 37°C
37 to 97°F
Use alkaline
manganese
batteries
type MICRO-
LR03 (AAA) which
do not contain
pollutants
Additional information
109