Section 4 - Installation
INSTALLATION
49
Installation and Maintenance
4.4 INSTALLATION OF SYSTEM
ᘐ CAUTION: The installation manuals and guides of all
individual system components must be obeyed to make
sure of correct operation and optimised life expectancy.
The system is to be installed in accordance with the standards
and legislation outlined in Section 1.4, and the requirements
of section 3.1.
Pipework is to be kept as simple as is practicable. Minimal
bends are to be used and swept bends are preferred to
Where possible solder joints are to be made with temperature
sensitive components disconnected.
ᘐ WARNING: Failure to appropriately protect against
system expansion will lead to catastrophic failure
of the system circuit, major property damage, and
serious harm to dwelling inhabitants. It must be sized in
accordance with BS EN 12828.
Installations must conform to the schematics in Appendix
1.1. It is the responsibility of the installer to make sure that all
appropriate measures are implemented including appropriate
safety devices etc.
Make sure a suitably sized expansion vessel is installed in the
primary circuit return pipe. Refer toTable 5, Table 6, Table 7
and Table 8. for further details. The expansion vessel must be
pre-charged to the correct pre-charge setting before heating
upward facing to aid de-aeration.
ᘐ CAUTION: System water is to be cleaned, treated,
tested, and maintained in accordance with BS 7593:2019
- Code of practice for the preparation, commissioning,
and maintenance of domestic central heating.
All safety relief valves (including antifreeze) are to be
mounted in an orientation that avoids sediment build up on
the sealing face.
Air vents should be placed at every high point within the
circuit.
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