Biodom 27 C5
Biodom 27 C5
Biodom 27 C5
Biodom 27 C5
|
|
|
| instructions for use, maintenance and installation |
version 1.0 May 2017
47
17. BOILER CONNECTION INSTRUCTIONS
To connect boiler Biodom 27 to central heating system you must check:
•
It is necessary to take into account the installations of non-return valve spring (or other
locking elements) which automatically prevent uncontrolled circulation of the heating
medium through the boiler by natural gravitational path.
•
Correct installation of pipelines of central heating (pipeline dimensions, air extraction, pipe
system functionality, adequacy of heating system according to boiler power).
•
Distribution units (pump functionality, closing valves functionality, electrical zone valves func-
tionality, mixed valves functionality…).
•
Ensured inlet of air into the space where Biodom 27 combustion device is installed. Inlet
must be executed in a manner, so that it cannot be closed and must, at any moment, enable
supply of fresh air – oxygen for burning into space. Unsuitable solutions are slightly opened
windows or open doors, supply of air through a duct along the flue from the roof is also un-
suitable.
•
Voltage of electrical connection for combustion device Biodom 27 must be 230 V / 50 Hz
(given in technical data for boiler Biodom 27).
•
Inspection of outlet of smoke gases – flue. Condition for connection is consent
from chimney
sweep
, with which a chimney sweep ensure suitability of the flue for combustion device Bio-
dom 27.
In placing and connecting the combustion device to central heating system, the installer must adhere
to the following:
•
Boiler Biodom 27 must be positioned horizontally, in length and depth.
•
Distances, according to the enclosed drawing, must be regarded (see
figure 1
).
•
In cases of older installation on return line to combustion device Biodom 27, a cleaning ele-
ment with closing valves is installed.
•
Boiler Biodom 27 is fitted with safety valve of 2.5 bar on return line. Installer must ensure
proper size of expansion container for volume of heating water in the system (size of expan-
sion container must be dimensioned minimum of 10 % of water volume in system "150 litres
of heating water in the system, minimum volume of expansion container must be 15 l". ex-
pansion container must be installed on combustion device Biodom 27 without closing ele-
ments.
•
A filling release tap must be installed on the right side of the boiler, on connection DN20.
•
Minimal pressure of heating water in boiler of 0.7 bar is ensured.
•
In case where there are many heating loops (two direct loops or mix loops for radiator heat-
ing, boiler heating, convector heating),
connection scheme nr. 3
is always used, where it is
necessary to use a hydraulic switch and pump on boiler loop, which is electrically connected
to cable "pump" from the boiler (see
figure 8
).
•
Boiler must be fitted with pressure gauge for pressure of heating water in the boiler, i.e. on
pipeline before each closing valve (enable that the pressure gauge indicates pressure in the
boiler and system; in the time of filling "there cannot be a closing element, which could pre-
vent indication of pressure in the boiler in the time of filling"). On the right side of Biodom 27
