5
4. PRODUCTION CHECK
All boiler parts are rechecked and set by the manufacturer before they are assembled. Each boiler is
tested for water system staunchness, gas system staunchness; regulating and safety components are
rechecked and set.
5. INSTRUCTIONS FOR BOILER MOUNTING
Boiler mounting can only be done by a qualified expert company, while this has to respect all the
advice and notes in this manual. The mounting has to be carried out in correspondence with valid local
norms and regulations and technical guidelines.
The mounting company is required to check:
−
if the boiler type is the ordered one
−
the choice of boiler was correct as far as the situation is concerned (gas type, heating system,
exhaust)
−
the delivery is complete
In case of any doubts, inform the manufacturer or the supplier before mounting.
♦
Position of the boiler
The design and construction of
THERM DUO FT
boilers enable them to be used both in places of
living and other places (boiler rooms etc.). The boilers have
IP 41
cover of electrical parts, which fulfils
the conditions for resistance to vertically dripping water.
The room where the boiler is placed must be a common basic surroundings AB5 protected against
frost, with ambient temperature within + 5 °C and + 40 °C with relative humidity lower than 80 %
according to valid norms. The combustion air must not contain halogen hydrocarbon or aggressive
vapours, it must not have high humidity and dustiness.
The size of the room where the boiler is installed and its airing must follow valid technical
regulations.
Important!
No flammable objects can be placed within the safe distance from the boiler (i.e. 50 mm), and within
the safe distance from the exhaust pipe and check glass (i.e. 200 mm). The wall where the boiler is
mounted must be made of inflammable material.
Before any work which could change the surroundings of the boiler starts, you have to switch off the
boiler by the mode switch (pointer to „0“).
♦
Boiler hanging
Before the boiler is mounted make sure the chosen place meets the requirements for flue exhaust
placement and for minimum distances stated in the previous chapters. If the boilers are place in a cascade
we recommend fitting them on a common supporting structure.
♦
Boiler connection to warm-water system
Boiler rooms with THERM DUO 50 FT cascades must be solved by a project according to hydraulic
ratio calculations with respect to total outputs.
The connection of boilers to heating distribution systems and gas distribution must be carried out so
that the boiler outlets are not strained.
Before the boiler is connected it is necessary to purge the heating system to remove all impurities
and sediments. The return water inlet must be fitted with a suitable filter.
The heating system must observe the relevant local norms.
Make sure the minimum excess pressure of the heating system is 0.8 mbar.
♦
Boiler connection to gas
The boiler must always be connected to gas by a professional company with valid certification and
its professional certified employees and according to the approved documentation for gas fitting. The gas
regulator is not to be fitted in front of the boiler, as it is inbuilt in the gas armature, which is a part of the
