Immergas VICTRIX ZEUS SUPERIOR, Instruction Booklet

16

1-27

C

53

C

93

X

1-26

INS

TALLER

US

ER

MAINTEN

AN

CE TECHNI

CI

AN

1.16 DUCTING OF FLUES OR 

TECHNICAL SLOTS.

Ducting is an operation through which, via 

the introduction of one or more relevant pipes, 

one achieves a system for the evacuation of the 

combustion products of a gas appliance, made up 

from the coupling of an existing or new ducting 

pipe with a chimney, flue or technical slot (also 

in new buildings) (Fig. 1-27). Ducting requires 

ducts declared to be suitable for the purpose by 

the manufacturer, following the installation and 

user instructions, provided by the manufacturer 

and the requirements of the standards in force.

Immergas ducting system.

The Ø 60 rigid and Ø 

80 flexible “Green Range”  ducting systems must 

only be used for domestic use and with Immergas 

condensing boilers.

In any case, ducting operations must respect 

the provisions contained in the standard and in 

current technical regulations; in particular, the 

declaration of conformity must be compiled at 

the end of work and on commissioning of the 

ducted system. The instructions in the project 

or technical report must likewise be followed, in 

cases provided for by the standard and current 

technical regulations. The system or components 

of the system have a technical life complying with 

current standards, provided that:

-  it is used in average atmospheric and environ-

mental conditions, according to current regula-

tions (absence of fumes, dusts or gases that can 

alter the normal thermophysical or chemical 

conditions; existence of temperatures coming 

within the standard range of daily variation, 

etc.).

- Installation and maintenance must be per-

formed according to the indications supplied 

by the manufacturer and in compliance with 

the provisions in force.

- The max. possible length of the Ø 60 flexible 

ducting vertical section is equal to 22 m. This 

length is obtained considering the complete 

Ø 80 exhaust terminal, 1m of Ø 80 pipe in 

exhaust, two 90° Ø 80 bends at boiler outlet.

- The max. possible length of the Ø 80 flexible 

ducting vertical section is equal to 30 m. This 

length is obtained considering the complete 

exhaust terminal, 1m of Ø 80 pipe in exhaust, 

two 90° Ø 80 bends at boiler outlet for connect-

ing to the ducting system and two direction 

changes of the flexible hose inside the chimney/

technical slot.

-  The maximum possible length of the Ø 80 rigid 

ducting vertical section is equal to 30 m. This 

length is obtained considering the complete 

Ø 80 exhaust terminal, 1m of Ø 80 pipe in ex-

haust, two 90° Ø 80 bends on the boiler outlet.

1.17 CONFIGURATION TYPE B, OPEN 

CHAMBER AND FAN ASSISTED FOR 

INDOORS.

The appliance can be installed inside buildings 

in 

23

 or B

53

 mode; in this case, all technical rules 

and national and local regulations in force, must 

be complied with.

- type B open chamber boilers must not be 

installed in places where commercial, artisan 

or industrial activities take place, which use 

products that may develop volatile vapours 

or substances (e.g. acid vapours, glues, paints, 

solvents, combustibles, etc.), as well as dusts 

(e.g. dust deriving from the working of wood, 

coal fines, cement, etc.), which may be harm-

ful for the components of the appliance and 

jeopardise operation. 

- in B

23

 and B

53

 configuration, the boilers must 

not be installed in bedrooms, bathrooms or in 

studio flats.

-  The installation of appliances in B

23

 and B

53

 con-

figurations are only recommended outdoors (in 

a partially-protected place) or in places that 

are not lived in and which are permanently 

ventilated.

For installation the cover kit must be used, re-

ferred to in paragraph 1.11.

1.18 FLUE GAS EXHAUST TO FLUE/

CHIMNEY.

The flue exhaust does not necessarily have to be 

connected to a branched type traditional flue. 

The flue exhaust, for boiler clots installed in C 

configuration, can be connected to a special 

LAS type multiple flue. For B configurations, 

exhaust is only allowed into individual chimney 

or directly into the external atmosphere via a 

suitable terminal.  The multiple flues and the 

combined flues must also only be connected to 

type C appliances of the same type (condensing), 

having nominal heat inputs that do not differ by 

more than 30% less with respect to the maximum 

that can be attached and powered by the same 

fuel. The thermo-fluid dynamic features (flue 

flow rate, % of carbon dioxide, % humidity etc....) 

of the appliances attached to the same multiple 

flues or combined flues, must not differ by more 

than 10% with respect to the average boiler at-

tached. Multiple and combined flues must be 

specially designed according to the calculation 

method and requirements of the standards, by 

professionally qualified technical staff. Chimney 

or flue sections for connection of the exhaust 

pipe must comply with requisites of technical 

standards in force.