14
2.2. Dimensions
G
450
750
325
131
218
232
138
177
43 56 98
75
98
80
C
F
R
M
G
RS
RC
SV
G
Gas intake
M
CH flow
C
DHW flow (CTN only)
F
Mains water intake
R
CH return
RC
Filling tap
RS
Discharge tap
SV
3bar safety valve discharge tap
CTN and RTN models
bottom view
top view
pic. 4 - Dimensions mod. CTN and RTN