Rinnai E110CN Installation & Servicing Instructions Manual page 13

Connection for combustion air supply and vent system
f w g k r c
boiler connections / mounting points
Vent system / Combustion air supply
Gas pipe - g
Supply pipe - f
Return pipe - r
Condensate pipe - c
Cold water pipe - k
Hot water pipe - w
connection diameters
f w g k r c
Boiler type
E75CN
E75CP
80/125mm
3/4"M-NPT
0.87" x 3/4"M-NPT /
22mm
0.87" x 3/4"M-NPT /
22mm
0.87" / 22mm
0.59" x 3/4"M-NPT /
15mm
0.59" x 3/4"M-NPT /
15mm
Combi
E110CN
E110CP
80/125mm
3/4"M-NPT
G3/4"x
3/4"M-NPT
G3/4"x
3/4"M-NPT
0.87" / 22mm
G1/2"x
3/4"M-NPT
G1/2"x
3/4"M-NPT
figure 2
table 2
13