Viessmann Vitopend 100-W Installation And Service Instructions Manual page 13

Preparing for installation
Preparing for installation
Dimensions and connections
a
A B C D E
58 58
123 123
A Heating flow G ¾
B DHW G ½ (gas combi boiler)
C Gas connection G ¾
(cont.)
f
D Cold water G ½ (gas combi boiler)
E Heating return G ¾
Preparing for installation
d
e
13