19
ATTENTION!
It is required
that the boiler is connected to the
heating installation by a four- way valve.
!
!
ATTENTION!
T
he temperature of the return water from
the central heating boiler should not be lower
o
than 45 C.
!
!
T
able
8.2.1
Symbols applied in the schematics
Designation
Key
RO
RW
RS
RP
deaeration pipe
expansion pipe
signal pipe
spill pipe
RB
T1
P1
safety pipe
temperature
pressure
The schematics of the connecting the boiler to the heating installation
meet the PN- 91/B-02420 requirements.
Description
8.2.1
Connecting the boiler to the heating system diagram
RO
RP
RB
RB
RW
RW
RS
T1
T1
PI
PI
Содержание SD DUO BIO Series
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