Thermona Therm 28 KD, Руководство по установке

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and, if applicable, the connection of the outside temperature sensor THERM Q01 for weather compensated
regulation, as well as the maintenance of the boiler’s electrical parts, can only be provided by a professional person
qualified for electro-technical work pursuant to the valid norms.
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FLUE EXHAUST
The boiler must be mounted with the necessary accessories (the piping for combustion air supply and flue
exhaust including the outlet, distance pieces, piping armatures) that is allotted to the particular boiler type. These
components are supplied separately depending on the installation type and the concrete installation conditions, and
the boiler must not be put into operation without them. The possible flue exhaust installation versions are shown at
the end of this manual.
The basic requirements for the flue exhaust outlet of appliances with a burner with the forced combustion air
supply and with the forced flue exhaust must follow relevant technical standards. The connection to a chimney,
where applicable, must, too, comply with the corresponding technical standards. The actual flue exhaust solution
must be designed and projected with respect to the standard regulations providing for the condensate exhaust. The
horizontal piping must be installed with a falling gradient of 2° from the ending towards the boiler so that the
escape of the condensed fluid from the exhaust ending into the adjacent area can be prevented.
The maximum pressure loss of the flue exhaust and combustion air supply system is 80 Pa.
The maximum coaxial flue exhaust lengths allowed by the manufacturer:
Horizontal piping: The shortest length is 1 m, the longest is 3 m
– measured from the elbow on the appliance
to the outlet on the façade. Each another 90º elbow shortens the length by 0.75 m and each 45º elbow by 0.5 m.
Vertical piping: The shortest length is 1 m, the longest is 2.7 m –
measured from the appliance to the bottom
edge of cowl collar. Each 90º elbow shortens the length by 0.75 m and each 45º elbow by 0.5 m.
When a distributor and separate piping for flue exhaust and combustion air supply with diameter Ø 80 mm are
used including the outlet, the stated maximum lengths can be doubled (i.e. horizontal piping can be up to 6 meters
long, subtraction of the elbow resistance is still valid).
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HEATING SYSTEM FILLING
During the time when the heating system is filled with water the boiler must be unplugged, i.e. the plug must be
out of the socket. The recommended heating water pressure ranges from 1 to 1.5 bar when the system is cold. The
heating system must be filled slowly so that the air bubbles can escape through the deaerating valves. The water
used both for the first filling and refilling must be clear, colourless, without suspended solids, oil or chemically
aggressive additives, it must not be acid (pH lower than 7), with the minimum carbonate hardness (max. 3.5 mval/l)
and it must comply with the relevant local norms. If the above mentioned requirements are not met the pump,
exchanger, or other components of the boiler can be damaged.
The manufacturer is by no means liable either for the above mentioned damages or, where applicable, for the
clogging of the exchanger, which means that the guarantee cannot be applied in such cases!
To refill the heating system an inbuilt valve can be used. It can be adjusted at the bottom of the boiler (close to
return water inlet). When the required pressure is reached the valve must be closed again.
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CHOICE OF REGULATION AND CONTROL ELEMENTS
The boiler is equipped with basic regulation and safety elements, as follows from the following wiring diagrams.
As further expansion, it is possible to use regulation according to the temperature in the selected reference room or
the weather-compensated regulation of the heating water, or a combined regulation.
The manufacturer offers a wide range of thermostats for the room temperature control, e.g. Digistat 3, Honeywell
CM 27, CM 67, pop ř . T 8360A1000, TG - TM 100/19 and others. For the weather compensated regulation there is
the outside sensor THERM Q01 offered by Thermona.
A high-quality regulation can be achieved by using a smart programmable regulator SIEMENS QAA 73.110 that
is continuously communicating with the boiler microprocessor via the IU02 interface. The data communication
that takes place in this way concerns the required temperature of the heating system in relation to the indoor and
outside temperature. It also produces information on boiler operations (nominal range of use, output, temperatures,
potential defects, possible switch-off of the DHW supply tank heating at night when the scope of use is limited,
etc.). The major characteristic of this system is the vast number of its adjustable and displayable parameters that
ensure an ideal run of the heating system with power modulation.
When you order a
Therm
boiler, we supply the aforementioned regulators at reduced prices.