broag SEAGOLD 1A HR, Manual

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Remeha Gas
550/550 Duo
8
As most systems contain a variety of metals which can
react with each other to cause corrosion. It is con-
sidered good practice to provide some form of water
treatment (especially in open vented systems) in order to
prevent or reduce the following:
- Metallic corrosion;
- Formation of scale and sludge;
- Microbiological contamination;
- Chemical changes in the untreated system water.
Suitable chemicals and their use should be discussed
with a specialist water treatment company prior to car-
rying out any work. The specification of the system
and manufacturers recommendations must be taken into
account, along with the age and condition of the system.
New systems should be flushed thoroughly to remove all
traces of flux, debris, grease and metal swarf generated
during installation. Care to be taken with old systems
to ensure any black metallic iron oxide sludge and other
corrosive residues are removed, again by thoroughly
flushing, ensuring that the system is drained completely
from all low points.
Note: Please ensure that the new boiler plant is not
in circuit when the flushing takes place, especially if
cleansing chemicals are used to assist the process.
Under no circumstances is the boiler to be operated
with cleaning chemicals in the system.
To Summarise:
- Minimise water loss;
- Prevent pumping over in open vented systems;
- Provide adequate air venting at all high points;
- Keep pH level between 7 - 9 when using additives;
- Maximum chlorine content of 200 mg/l;
Take advice on the suitability of inhibitors.
4.1.5 Noise level
The noise level measured around the boiler depending
on boiler room construction is about 50-55 dBA. Noise
levels taken at 1 meter from the boiler.
4.2 Chimneys
The average flue gas temperature is so low that the
chimney must be made in accordance with the guide-
lines of British Gas (BS 6644).
4.3 Installation standards
The following instructions must be adhered to when the
Remeha Gas 550/550 Duo is installed:
Gas Safety (installation and use) Regulations 1984 (as
amended).
In addition to the above regulations, this boiler must be
installed in compliance with:
- Current I.E.E. Regulations for electrical installations
- Local building regulations
- The Building Standards (Scotland)
- (Consolidation) Regulations
- By-laws of the local water undertaking
- Health and Safety Document No 635 ‘The Electricity
at Work Regulations 1989’.
It should also be in accordance with the relevant recom-
mendations in the current editions of the following British
Standards and Codes of Practice, viz. BS 5440 Pt 1 and
2, BS 5449, BS 5546,
BS 6798, BS 6891 and BG.DM2.
Lawfully all gas appliances must be installed by compe-
tent persons (e.g. Corgi, ACOPS).
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.
Important:
The Remeha Gas 550/550 Duo is a certified appliance
and must not be modified or installed in any way con-
trary to these ‘Installation and Servicing Instructions’.
Manufacturer instructions must NOT be taken in any way
as when overriding statutory obligations.