Boiler Installations; Space Requirement; Before Commissioning - Ariterm Biomatic+ 20i/40 Installation And Operating Instructions Manual

BOILER INSTALLATIONS

The boiler should be installed by a company with the proper professional qualifications.
The installation must always be carried out in accordance with, at the time being, valid local
standards and regulations, as well as the Ariterm Installation and Operation Instructions.
NOTE! All electrical connections must be carried out by a professionally-qualified electrician.

Space requirement

The boiler room must always meet, at the time being, valid local standards and regulations.
At least one meter of free space is recommended to be left in front of the boiler for cleaning
and maintenance operations. It is also recommended to leave about 40 cm of free space on
each side and at least 50 cm above the boiler.
NOTE! The boiler must be placed at a distance of no less than 180 mm from the back wall.
In addition, it must be possible to remove the flue gas fan whenever maintenance requires it.
Flue pipe connection and combustion air intake
Silicon sealant with a temperature resistance of 350 ˚C can be used as a sealing compound
for joints. The flue pipe must be made of steel or equivalent material. The flue pipe length
must be dimensioned according to the building requirements. The low temperature of the
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flue gas from the Biomatic+ 20 /40
sure the chimney is well ventilated with the help of draught diverter/inhibitor The chimney
flue should be stainless steel or acid-proof. Ensure that the chimney connection (boiler flue
to chimney connection) is air tight since, during certain operating cases, there could be an
overpressure after the boiler flue. The boiler room ventilation air intake must not be covered.
Flue pipe connection and ventilation air intake
Recommended flue pipe diameter
Recommended flue pipe length
Recommended underpressure* in the combustion
chamber
Ventilation air intake
Recommended under pressure in the chimney
* Measure the vacuum in the measurement hole on the left-hand side of the burner. Remove the black screw
NOTE! The vacuum in the chimney is not critical since the boiler is equipped with a flue
gas fan. However, the chimney must be dimensioned to be able to evacuate the flue gases
without overpressure. Overpressure and/or leakage in the chimney can cause the flue
gases to leak into the building.
5P01781-A / 5P01781-B
gives rise to a risk of condensation in the chimney. Make
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Biomatic+ 20 Biomatic+ 40
Ø 100 mm Ø 140 mm
4 m 4 m
3-15 Pa 3-15 Pa
100 cm 2 200 cm
>0 >0
Pipe installations
Before installing the boiler, the heating system must be flushed and checked by means
of a water-pressure test. After installation, make sure that all joints are tight.
Ariterm is not responsible for damages caused by leaking joints.
Dirt trap and manometer installation
It is recommended that the dirt trap delivered with the boiler is installed in the cold
water pipe before the domestic hot water heat exchanger. There is no manometer in the
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Biomatic+ 20 /40 . Therefore, a manometer must be installed in the heating network.
Safety valve installation
A safety valve must be fitted to the heating system. The valve must be CE marked with
a maximum opening pressure of 1.5 bar and a minimum size of DN 15. The safety valve
must be chosen according to the highest pressure class of the combination of devices in
the heating system. Devices that can close the connection must not be installed between
the valve and the boiler. The release pipe must be dimensioned and installed in such a way
that it does not limit the valve release efficiency and does not cause risk/danger during
the operation of the valve.
Electrical installations
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The Biomatic+ 20 /40
(not in L and U-L models) and an internal DHW circulation pump. The boiler also contain
an overheat protection for the burner and the immersion heater. The electrical installations
related to the boiler must be carried out by an installer with the relevant qualifications
and the boiler must be connected according to the enclosed wiring diagram.
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A safety/maintenance switch must be installed in the voltage supply system of the boiler.

Before commissioning

Before starting the boiler, the following must be checked:
• the heating circuit and the boiler are full of water (pressure at least 0.5 bar).
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• air is removed from the internal DHW circulation pump through the venting screw
located in the pump head.
• the flue damper (if any) is open.
• the flue gas damper plates located on top of the convection part of the boiler is in place.
• the circulation pump is running.
• the heating circuit valves are open.
• the boiler room ventilation air intake is open.
• the safety valve is in working order and there are no obstacles between the valve and the boiler.
ARITERM AB • ARITERM OY
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contain an integrated pellet burner, a 9 kW immersion heater
Installation and operating instruction • Version 2.0 • 12.04.2017
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