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Instruction manual BFC 33
is
Practical example of parallel flue gas discharge
Example
The figure shows a BFC 30 installation. This has to be fitted with a 10 m parallel
pipe of 100 mm diameter, and eight 90 degree bends. The configuration must
be checked for compliance with the requirements stated in the table.
Appliance with parallel flue gas discharge material
For checking the maximum length, both the maximum length of the air supply
and of the flue gas discharge are calculated. In this example, the length of the
air supply pipe is 8 metres and the length of the chimney pipe is 10 metres.
Air supply
This length of 8 metres is the sum of pipe sections 1 through 5 plus 4 bends.
The length of the transition piece and the bend in the transition piece can be
ignored. According to the table, 4.6 m has to be calculated for each 90° bend.
The overall pipe length of the air supply is therefore:
(4.6 x 4) + 8 = 18.4 + 8 = 26.4 m.
Flue gas discharge
This length of 10 metres is the sum of pipe sections 1 through 5 plus 4 bends.
The length of the transition piece and the bend in the transition piece can be
ignored. According to the table, 4.6 m has to be calculated for each 90° bend.
The overall pipe length of the flue gas discharge is therefore:
(4.6 x 4) + 10 = 18.4 + 10 = 28.4 m.
This remains smaller in both cases than the maximum length of 55 metres that
is stated in the table. The installation therefore fulfils the requirements. If the
pipe length of one of the two was greater than the maximum length given in the
table, the installation would therefore not meet the requirements imposed.
3.10 Electrical
connection
Warning
The installation should be carried out by a competent person, in compliance
with general and locally applicable regulations (1.3 "Regulations").
3.10.1 Introduction
This section covers the following topics:
•Preparation
;
Connecting the mains power
;
33


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Others manual(s) of A.O. Smith BFC80

A.O. Smith BFC80 Usermanual and installation guide - German - 100 pages

A.O. Smith BFC80 User Manual - Dutch - 116 pages

A.O. Smith BFC80 Manual - Dutch - 2 pages


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