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6.5
Checking activities before commissioning
Before the boiler is put into operation it is necessary to check:
a) Filling the heating system with water
Water for filling the boiler and heating system must be clear and colourless, without any suspended
substances, oil and chemically aggressive substances. Its hardness must comply with
Č
SN 07 7401 and
in case of dissatisfactory hardness the water must be trated. Even a multiply heating of water with an
exceeded harness does not prevent the salts from segregation on the exchanger walls. By precipitation
of 1 mm calcacite at a given point the heat transfer from metal to water is reduced by 10 %.
The heating systems with an open expansion tank allow a direct contact between the heating water and
the atmosphere. During the heating season the expanding water in the reservoir absorbs the oxygen
which increases the corrosive effects and at the same time lot of water evaporates. Only the water
treated to the values according to
Č
SN 07 7401 can be used for refilling. The heating system must be
thoroughly flushed out in order to wash out all impurities.
During the heating season it is necessary to keep a constant water volume in the heating system. When
refilling the water in the heating system it is necessary to make sure that no air is sucked into the
system. The water from boiler and the heating system must never be discharged or be taken for use
except the emergency cases like the repairs, ect. The water discharge and new water filling operations
increase the danger of corrosion and the scale formation.
If it is necessary to refill water in the heating system, we only do it when the boiler has cooled
down so that the exchanger cannot be damaged.
b) Heating system tightness
c)
Connection to the chimney – must be approved by a chimney-sweepers´ organization
d) Burner tightness
Connect the equipment to the mains (insert the plug into socket). Put the main switch (circuit breaker) in
the service box into the 1 position. By starting the ventilator (by pressing the blue button) in the service
box the burner tightness is checked. All air must flow into the combustion are in a retort and boiler grate.
The check must be focused on the seating faces:
- Of the fan in the mouthpiece
- Around the burner cleaning opening
Of boiler grate with the burner. If any leakages appear, the fire grate must be taken out, the old boiler mastic
must be removed from the seating faces and an adequate quantity of new mastic must be applied to them
and the fire grate must be installed back into the burner. (Note: In case of a 4 sectional boiler size the cutting
off of the grate must be always toward the back wall at the frontal view into the boiler. In case of 5 - 7
sectional boiler size the cutting off of the grate must always be directed to entry to the fuel feeder.)
-
Repeat the check.
By pressing the blue button again the ventilator is switched off. If you do not switch off the ventilator it will
be switched off automatically after 15 minutes (unless there is some requirement from QAA 88 device).
e)
Connection to the electricity network
The boiler is connected through a movable connection by means of a plug standardized socket
230 V/50 Hz/10 A. The protection against electric shock muset be ensured according to
Č
SN 33 2000 - 4 - 41 ed. 2.
f)
Open the water inlet into valve BVTS or TS 130 or STS 20
g) Check the opening of chimney flap
The installation and heating test completion must be recorded in the „Guarantee certificate“.
!!!!
To the point marked apply the boiler
cement and lay up the grate. It is
necessary to ensure the tightness
between the burner and the grate.
