Ventilation; B23 Type Conventional Flue Outlet; C13/C33 Type Balanced Flue Outlet; Combustion Product Flueing - geminox FCX 22 C Technical Instructions

WATER CIRCULATION SYSTEM
The expansion vessel is suitable for systems up to
80 litres water content. For systems in excess of
this capacity an additional pressurised expansion
vessel will be required. BS7074 and "British Gas
Specifications for Domestic Wet Central Heating
Systems' Part 3 gives guidance in this subject.
The central heating system should be in accordance
with the relevant recommendations given in
BS.6798 and, in addition, for small bore and micro-

2 - VENTILATION

2.1 - B23 type conventional flue outlet

- All combustion appliances consume a quantity of
air proportional to their power.
• A ventilation space of at least 100 cm² must be
provided at least 1.8 m above the ground, as
well as an air input, below, of 100 cm².
- To avoid corrosion, the combustion air must not
contain any harmful agents. Halogenated hydro-
carbons, containing combinations of chlorine or
fluorine that are found in solvents, paints, glues,
propellants, household cleaning products, etc.
are considered to greatly encourage corrosion.

3 - COMBUSTION PRODUCT FLUEING

The combustion product outlet systems
!
described in this manual are systems
normally used on the European market.
However, some of them cannot be used
in all the countries of the EEC. The in-
staller or client must ensure that the
flue system chosen complies with local
installation regulations.
For the installation of the combustion
product evacuation system, C13/C33
accessories supplied as an option or an
authorized B
23
tion product system must be used.
The optional polypropylene combus-
tion product evacuation tubes are ex-
clusively reserved for assembly with a
condensation boiler, maximum temper-
ature 120 °C. The combustion products
of the unit are evacuated at low temper-
ature (50 to 100°C) and saturated in hu-
midity.
/B /C type combus-
23p 33
bore systems - BS.5449.1. The domestic hot water
system, if applicable, should be in accordance with
the relevant recommendations of BS.5546.
Copper tubing, to BS. 287 1. 1, is recommended for
water carrying pipework.
ELECTRICAL SUPPLY
Wiring extemal to the boiler must be in accordance
with the I.E.E. Wiring Regulations and any local re-
gulations.
2.2 - C /C type balanced flue outlet
13 33
When the FCX boiler is installed with the horizontal
or vertical balanced flue kits provided as an option,
the combusion circuit is sealed tight in relation to the
local installation.
The boiler does not require any special ventilation,
but when the room is very small, you must take eve-
ry measure to ensure that the ambient temperature
of the installation premises does not exceed 45°C
(ventilation).
The installation premises may require
!
ventilation to be fitted according to its
features or use.
The material for the lining must be cho-
!
sen specifically for "the condensation
burner boiler" and be corrosion proof.
The suitable materials certified as com-
bustion product systems are:
- 904 L stainless steel,
- PPtl polypropylene,
- PVDF,
Refer imperatively to the CSTB techni-
cal notice or in the technical application
documentation (DTA) for fitting flues.
- 12 -
INSTALLATION