Technical Specifications; Homologations; Safety, Performance & Quality; Certifications - Baxi 424 Combi 2 Installation And Service Manual

3 Technical specifications

3 Technical specifications
3.1

Homologations

Tab.1 Certifications
CE certificate number
NOx class
Boiler type
Tab.2 Gas category, type and supply pressure

Gas category

I
2H
II
2H3P
12 Combi 2
3.1.1
This boiler has been assessed by an appropriate Notified Body and shown
to meet the requirements of all Directives and Regulations as applicable.
These Directives and Regulations lay down requirements for the safety
and efficiency of the appliance, together with its design, construction and
use of materials. They also require the production process to be covered
by an approved and monitored system of quality assurance.
3.1.2
0085CU0338
6
C , C
13 33
3.1.3
Gas type
G20 (H natural gas)
G31 (Propane)
3.1.4
Codes of Practice — refer to the most recent
version Tab.3
Standard
Practice apply:
BS 6891
BS 5546
BS EN
12828
BS EN
12831
BS EN
14336
BS 6798
BS 5440
Part 1
BS 5440
Part 2
Safety, Performance & Quality

Certifications

Gas category
Supply pressure (mbar)
20
37
Important This appliance is suitable for G20 gas
containing up to 20% hydrogen (H
in the percentage of H
over time. (For example: 20% of H
to a 1.5% increase of O
valve may need to be adjusted more accurately. This
must be adjusted using standard O
used.

Standards

In GB the following Codes of
Scope
Gas Installation.
Installation of hot water supplies for domestic purposes.
Heating systems in buildings.
Heating systems in buildings — Calculation of load.
Installation & commissioning of water based heating
systems.
Installation of gas fired hot water boilers.
Flues.
Ventilation.
). Due to variations
2
, the percentage of O may vary
2 2
in the gas may lead
2
in the flue gases) The gas
2
values for the gas
2