5
4. APPLICATION
4.2 Chimneys
The average flue gas temperature is so low that the chim-
ney must be in accordance with the guidelines of British
Gas and BS 6644.
4.3 Installation standards
The following instructions must be adhered to when the
remeha Gas 3c is installed:
Gas safety (installation and use) Regulations 1984 (as
amended).
All gas appliances must, by law, be installed by compe-
tent persons (e.g. Corgi) in accordance with the above
regulations. Failure to install appliances correctly could
lead to prosecution.
It is in your own interest and that of safety to ensure that
the law is complied with.
In addition to the above regulations, this appliance must
be installed in compliance with the current I.E.E.
Regulations for electrical installation, local building regula-
tions, the Building Standards (Scotland), Consolidation
Regulations and bye laws of the local water undertaking
and Health and Safety Document No. 635 'The Electricity
at Work Regulations 1989'. It should also be in accor-
dance with the relevant recommendations in the current
editions of the following British Standards and Codes of
Practice, viz.
BS 5540 Pt 1 and 2, BS 5449, BS 5546, BS 6798,
BS 6891 and BG.DM2.
Important:
The remeha Gas 3c is certified appliance and must not
be modified or installed in any way contrary to these
'Installation and Servicing Instructions'.
Manufacturers instructions must NOT be taken in any way
as overriding statutory obligations.
93
= ... m
3
/h
This minimum flow must be maintained for 5 minutes af-
ter the burner stops firing to avoid high temperature shut-
down due to residuel heat gain.
Due to the design and manufacture of the boiler no speci-
fic minimum water flow requirement exists other than for
high-temperature protection.
4.1.4 Water treatment
Water treatment under normal circumstances is not
necessary (see our water quality recommendations).
4.1.5 Noise level
The noise level measured around the boiler depending
on boiler room construction is about 50-55 dBA.
(Noise level taken at 1 meter from the boiler)
Output boiler in kW
4.1 L.P.H.W. system
4.1.1 Water temperature
Maximum water temperature is 110
°
C (high limit
thermostat).
Highest boiler water temperature is 95
°
C (control
thermostat).
Minimum return water temperature is 20
°
C at a flow rate
related at a
∆
t of 20
°
C (flow/return temperature).
4.1.2 Water pressure
Boiler sections pressure test at 12 bar.
Maximum pressure test for the boiler block is 6 bar.
Minimum working pressure boiler is 0.8 bar.
Maximum working pressure is 6 bar.
4.1.3 Water flow
The minimum water flow through the boiler is:
