Rinnai E75CN - Manual (Page 13)

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