Biodom 27 C5
Biodom 27 C5
Biodom 27 C5
Biodom 27 C5
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| instructions for use, maintenance and installation |
version 1.0 May 2017
48
is a provided DN20 connection for filling release tap. Filling release tap is intended for filling
or emptying the heating system and boiler.
•
When connecting the boiler Biodom 27 to central heating system you must use mechanical
elements, which prevent uncontrolled circulation of hot heating water through the boiler
(gravity block, spring non-return valve, solenoid zone valve, electromotor zone valve...). goal
of protection is to ensure amount of heating water flow through the boiler (minimal flow
through the boiler must be over 300 l/h).
•
When distribution of heating water is regulated by three-way mix valve (floor heating,
weather controlled regulation, where water flow on boiler heating loop is reduced), the sys-
tem is executed with fitted hydraulic switch and pump on primary-boiler heating loop, pump
on boiler heating loop must be controlled by boiler regulation, which already has a factory
produced electrical connection for pump.
•
When a three-way mix valve is used (for floor or radiator heating, only in case of only one
mixing heating loop), connection of boiler Biodom 27 is always executed according to
scheme
nr. 3
, where a hydraulic switch and a pump are built into the installation on heating cycle with
non-return valve (pump is connected to black cable from combustion device).
•
Flue connection must executed in accordance with instruction limiting maximum length of
connection pipe Ø 80 (5 m) and that 90-degree joints are considered as resistance on connec-
tion, which reduces length of connection pipe for 1 m (example: if there are 2 joints on flue
connection, the connection cannot exceed length of 3 m). Flue connection must be fitted
with joints with inspections holes for cleaning (see
figure 3
). Joints must be out of at least 3
segments (joints with three or more segments enable smooth flow of smoke gases through
joint), it is prohibited to use joints with two segments (joints with two segments creates resis-
tance in flow of smoke gases) (see
figure 6
).
•
If the flue connection is longer as set forth in the instructions, the installer must use a reduc-
ing element (from Ø 80 female connection to Ø 130 female connection) immediately behind
the fan, and the connection must be made with a pipe Ø 130 .
•
Electrical connection of boiler must be performed with a cable (see
figure 8
) in accordance
with instructions. The boiler must not be connected to power supply with a plug – it must be
connected directly to network by a toggle switch, breaking live and neutral wire.
•
Electrical connection of distribution elements (pumps, solenoid valves, electromotor valves...)
must be executed in accordance with the scheme in the instructions, i.e. supply for distribu-
tion elements must be executed from connection cable on the boiler (cable "pump") (see
fig-
ure 8
).
•
Combustion device Biodom 27, pipes of central heating and flue connection must be earthed
in accordance with professional regulations (earthing conductor with minimum cross-section
4mm
2
).
