Exhaust Duct Installation Options - Rinnai RD-400AU Operation & Installation Manual

EXHAUST DUCT INSTALLATION OPTIONS

Following are the four most common exhaust duct installation methods. The exhaust duct length can
be up to 8 metres long with a maximum of two 90° bends:
i
c
e
b
E
A
d
G
i
Direct Vertical.
ii
Offset Vertical.
iii
Extended Vertical.
iv
Direct or Extended Horizontal.
a
Minimum clearance 500mm to nearest part of roof.
b
Minimum clearance 20mm to combustible materials.
c
Decktite or other non lead based flashing, to be provided by installer.
d
For enclosed installations ONLY, a minimum 250cm
e
The weight of the exhaust duct MUST BE supported by the stand-off supplied and NOT by the dryer.
f
A constant 2° fall to the terminal MUST BE maintained on horizontal installations.
g
B
'DSFPIPE1000' can be cut to length as is required, provided that a clean square edge is maintained and that a minimum
penetration of 50mm remains to join other exhaust duct components.
Rinnai
INSTALLATION
a
C
e
e
b
B
D
e
D
D
B
2
of Free Air Ventilation is required.
19
ii iii
C
e
D
e
D
B
D
e
E
D
D
B
Dry-Soft® RD-400AU / RD-600AU Installation Manual
iv
C
B
B
f
b
F
g