A.O. Smith 30 - Manual (Page 34)

Installation
34 Instruction manual SGS
3
is
The following example illustrates how to use the table.
Practical example of concentric flue gas discharge
Example
The figure shows a SGS 30 installation. The appliance must be fitted with 25 m
of concentric pipe (C13/C33) and four 90 degree bends. We need to check
whether this configuration complies with the requirements stated in the table.
Appliance with concentric flue gas discharge material
According to the table, the maximum length allowed is 40 metres, and there may
be up to seven 90 degree bends. Both requirements are fulfilled.
Specifications
Caution
For type C13 and C33 installations,A.O. Smith prescribes the use of a roof
or wall-mounted terminal, exclusively of a type approved for the appliance. Use
of an incorrect roof or wall-mounted flue terminal can cause the installation to
malfunction.