INSTALLATION
IRN 101 –Byelaw 25
Water supplies shall be at reasonably balanced
pressures from a common source (either from storage
or from a supply pipe). Where the fitting is installed in
domestic premises, supplies may be taken from
separate sources provided a Listed single check
valve or some other no less effective back flow
prevention device is fitted immediately upstream of
both hot and cold water inlets.
IRN 116 –Byelaws 90 and 91
Sealed primary circuits and/or secondary hot water
systems shall incorporate a means for
accommodating the thermal expansion of water to
prevent any discharge from the circuit and/or system
except in an emergency situation.
IRN 302 –Byelaw 14
Unvented primary circuits may be filled or replenished
by means of a temporary connection between the
circuit and a supply pipe provided a listed double
check valve or some other no less effective back flow
prevention device is permanently connected at the
inlet to the circuit and the temporary connection is
removed after use.
INTRODUCTION
The Trianco EuroStar Combi Boiler has been
designed to conform to European Directive/Standards
BED 92/42/EEC, LVD 73/23/EEC, EMC 89/336/EEC.
The boiler design incorporates a secondary stainless
steel heat exchanger to recover heat from the flue
gases that is normally lost in conventional oil fired
boilers.
The matched pressure-jet burner is quiet in operation
and ensures clean and efficient combustion, with low
NOx emissions.
The boiler is suitable for all-normal open-vented
central heating and indirect hot water systems. With
the appropriate safety equipment, the boiler can also
be used with sealed systems up to a working pressure
of 3 bar.
Two flow and return sockets are provided to facilitate
connections to the heating and hot water circuits.
Due to the high efficiency of the boiler, and to comply
with the Building Regulations (Part L), it must be fitted
to fully pumped systems only.
The front-mounted access cover permits easy access
for removal of the baffles and cleaning of the heating
surfaces. If the boiler is installed under a kitchen
worktop, this should be made removable to give
easier access to the flue gas sample point and
condensate cleaning port (see page 28).
The only heating oil suitable for use on this boiler is
kerosene class C2. DO NOT use any other heating oil
or a mixture of heating oils. Failure to use the correct
oil will invalidate the warranty.
Flues
The boilers are supplied suitably equipped for
connection to a conventional chimney, but when
installed with a TR Engineering balanced flue kit it
becomes a room-sealed appliance. These kits allow
the boiler to be installed in a wide variety of site
conditions. The balanced flue is available in
horizontal, high level horizontal and vertical formats.
All flues are suitable for installation in garages, and
conform to the requirements of OFSA100. See pages
17-26 for balanced flue options.
Note: The low level balanced flue kit can only be used
for rear and right-hand side exhaust.
Flushing and water treatment
The performance of the boiler could be impaired by
system debris or the effects of corrosion. New
systems must be thoroughly flushed to remove metal
filings, solder, machining oils and any other corrosive
fluxes or greases before connecting the boiler.
When fitting the boiler to an existing system, clean the
system by using an appropriate flushing and descaling
agent. Refer to BS 7593 (1992) for guidance.
The system must be protected with a corrosion
inhibitor. Flushing agents and corrosion inhibitors
must be suitable for use with mild steel boilers and
comply with BS 7593 requirements. It is strongly
recommended that a suitable anti-freeze product is
applied to the system after flushing.
Failure to flush the system and add a corrosion
inhibitor may reduce the life span of the boiler and will
invalidate the guarantee and any extended warranty.
Failure to fit the boiler to a fully pumped system will
impede its correct operation and invalidate the
guarantee and any extended warranty.
The boiler must not be run without water in the
system.
It is the installation engineer's responsibility to ensure
that the boiler's output matches the heat requirements
of the system. Failure to do so may impede the
boiler's correct operation and invalidate its guarantee
and any extended warranty.
