Alpha Alpha CD Condensing Boiler Manuale utente
Installation Instructions
Alpha CD Condensing Boiler
CDVertical FlueTerminal Assembly
Concentric (60/100) Flue System
(Kit Part No. 6.2000520)
KIT CONTENTS
1. GENERAL
Note: The CD Vertical flue terminal MUST ONLY be used with an Alpha CD condensing boiler.
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 CD boiler.
c. The vertical flue terminal assembly is equivalent to a 1 m length of flue.
d. Each 45° bend is equivalent to a 0.9 m length of flue.
Note: A 90° bend must not be used with the vertical flue.
e. Refer to the vertical flue options (Fig. 3) and ensure the flue length does not exceed the equivalent of 15 m
(including the terminal assembly).
f. Additional flue lengths of 0.75 m (CD flue extension, Part No. 6.2000750) are available for extending the flue up to a
maximum equivalent flue length of 15 m (including the terminal assembly).
g. The CD vertical flue terminal assembly may be connected directly to
the boiler adaptor. However, under no circumstances must it be
shortened.
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. 3).
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 165 mm from this line as
shown in Fig. 1.
b. Cut a hole and/or remove tiles so that there is at least a 150 mm
diameter hole in the roof. Ensure there is at least a 25 mm gap
between the outer duct and any combustible material. Fig. 1
Compiled and designed by Publications 2000, Tel (01670) 356211 11/03/D155
Fig. 3
c. Fit a 125 mm diameter weathering slate over the hole in
the roof. A suitable weathering slate (Part No.
6.1000380) is available from Alpha Therm Ltd.
d. Position the vertical terminal assembly into the
weathering slate ensuring that the slate is located under
the lip of the terminal as shown in Fig. 2.
Note: Ensure that the minimum distances are maintained
(see Fig. 3). Do not secure the terminal into position at
this stage.
e. Assemble the flue extensions together by locating the
inner duct into the seal joint and secure each extension
together with the clamps supplied (three screws). Ensure
that the clamps are positioned centrally over the joints.
Note: If it is required to cut an extension, DO NOT cut
the end of the inner duct that incorporates the seal joint.
Ensure the inner duct end without the seal joint is cut so
that it is 15 mm longer than the outer duct.
f. Connect the vertical terminal ducts to the flue assembly,
as shown in Fig. 2. Secure with the outer duct clamp
(three screws).
g. After assembling all of the ducts, check that the terminal
is correctly located above the roof.
Note: Ensure that the flue assembly is supported at roof
level using suitable brackets, and that the weathering
slate is fitted correctly. Fig. 2
These instructions have been carefully prepared but we reserve the right to
alter the specification at any time in the interest of product improvement.
© Alpha Therm Limited 2003.
Alpha Therm Limited.
NepicarHouse,LondonRoad,WrothamHeath,
Sevenoaks, Kent TN15 7RS
Tel: 0870 3001964
email: [email protected]
website: www.alpha-boilers.com
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