Issue 2 14/07/16
27
Installation
3
Fig. 7
Combustion
via ‘T’ piece
Exhaust
100mm
NB: 100mm flue section
NOT available from
BAXI Commercial.
Vertical option, maximum
overall run is 32 meters
Number of 90° Elbows
Maximum length of straight
pipe (excluding flue terminal)
to exterior wall
0
16m (52ft 6in)
1
14.8m (48ft 6in)
2
13.6m (44ft 7in)
3
12.4m (40ft 7in)
3.27.1
Installation procedure
1. The Horizontal or Vertical flue kit that has been
delivered includes the components as listed below and
on page 21. The concentric flue pipe system includes
both the flue exhaust (inside pipe) and combustion air
(outside pipe). The flue pipe may be cut on the unflared
end (end without gasket) as required for installation.
2. Determine if additional flue components are required for
installation. Refer to the flue component information on
pages 21 and 55 for available optional flue components.
3. Ensure that the flue terminal location complies with
requirements described within this manual and the
Local Codes of Practice.
4. Measure the vertical and horizontal distance from the
water heater flue connection to determine the number
of components required.
3.26.1 Maximum Flue Distances (Horizontal or
Vertical)
3.27 Horizontal and vertical flue kits
Note
The overall length does not include the 1m terminal. The
1m terminal is not to be included in determining the
overall length of the flue.
Note
Each 45° elbow reduces the maximum flue distance by
700mm (2ft 3in).
IMPORTANT: Do not exceed the flue distances or the
number of elbows listed above. This may cause
heater malfunction or unsafe conditions.