Operating Instructions and Installation Instructions

Edition: 02 / 2015 Page 15 / 56
VARMAX TWIN - Installation, Use and Maintenance
4.15. Exhaust connection
!
IMPORTANT:
There is a specifi c connection for the exhausts to the VARMAX TWIN
boilers. Do not refer to the VARMAX generator's installation, use and
maintenance manual.
The size of the chimney pipes must be determined taking account of
combustion gas pressure on boiler output equal to 0 Pa (see table § 3.3).
You must comply with the regulatory texts and rules of the art that apply in
the country where the boiler will be installed, i.e.:
One exhaust temperature sensor per generator guarantees the
protection of the combustion product evacuation ducts.
The VARMAX TWIN boilers are approved to be connected to:
• a B23 chimney (all models)
• a B23P chimney (all models)
4.15.1. Installing the exhaust fl ue
The fl ue provided may be installed either to the right or the left of the VARMAX
TWIN boiler.
INFORMATION:
The duct lengths provided below are in linear metres (ml). The total length
of all the ducts is rounded to a straight-line length (the curves have a
straight-line equivalent).
fi gure 6 - Flue orientation
Example with exhaust outlet to the left:
INFORMATION:
When assembling the fl ue, we recommend fi tting the assembly on
the ground then installing it on the 2 generators. At least 3 people are
required to handle and secure the assembly.