Alpha CB Boiler Installation Instructions

Installation Instructions
Vertical Flue Terminal Assembly
Concentric (60/100) Flue System

1. GENERAL

a. The flue system must be installed in accordance with BS 5440:1;1990.
b. The boiler must be installed in accordance with the Installation
instructions supplied with the boiler.
c. The vertical flue terminal assembly is equivalent to a 1 m length of
flue.
d. Each 45° bend is equivalent to a 0.5 m length of flue.
Note: A 90° bend must not be used with the vertical flue.
e. Refer to the vertical flue options (Fig. 4) and ensure the flue length
does not exceed the equivalent of 4 m (including the terminal
assembly).
f. Additional flue lengths of 0.75 m and 1.0 m are available for extending
the flue up to a maximum equivalent flue length of 4 m (including the
terminal assembly).
g. The vertical flue terminal assembly may be connected directly to the
boiler adaptor.
h. To determine the actual length of flue required (L), measure the
distance from the top of the side panel to the weathering slate position
and subtract 640 mm for the terminal assembly, i.e. L = A - 640 mm
(see Fig. 4).
i. When the flue length is more than 2.5 m, the flue restrictor (Fig. 1) must
be removed. - remove the screw securing it in the boiler adaptor and lift
out.

2. INSTALLATION

a. When the template is on the wall in the boiler position, continue the
vertical line from the centre of the flue hole to the roof/ceiling position.
Mark the centre position of the flue hole 215 mm from this line as shown in Fig. 2.
Alpha CB/C/SY Boiler
(Kit Part No. 6.1000350)
KIT CONTENTS
Fig. 1
Fig. 2