Installation guide

32 | Rinnai Continuous Flow Water Heating Specication Guide 02-13
Rinnai Innity internal ue congurations
Direct flueing using FFSSKIT
For installations where the Rinnai Infinity is mounted directly on the inside of an external wall with a maximum wall
thickness of 430 mm (EF models) and 485 mm (VT and HD models).
FFSSKIT contains:
- 90 ° bend
- horizontal flue terminal—can be cut to size
- wall trim rubber—white (internal)
- wall trim rubber—black (external)
Bend
White wall trim
140 mm hole
Black wall trim
2º fall to
terminal
Horizontal terminal
Drain tube cap
Drain tube cap
Bend
White wall trim
140 mm hole
2º fall to
terminal
Black wall trim
Horizontal terminal
45 mm
min.
580 mm max.
580 mm max.
430 mm max. Infinity EF
485 mm max. Infinity VT and HD
430 mm max. Infinity EF
485 mm max. Infinity VT and HD
150 mm
Horizontal flues MUST slope 20 mm per metre to the termination point to ensure condensate drains
appropriately.
Horizontal extension flueing
Horizontal extension flueing is when the water heater is mounted against an internal wall and the flueing needs to
be extended for a longer distance horizontally to exit an external wall.
Components
Use an FFSSKIT as a starting point and customise with FFSSPIPE1000—more than one flue pipe may be required
(can be cut to size). Total flue length can be 13 m.
2˚ fall to terminal
Condensate direcon
Horizontal flues MUST slope 20 mm per metre to the termination point to ensure condensate drains
appropriately.