Unical DUA plus, Installation And User Instruction Manual

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14
Installation info
2.2.5 - SMOKE DISCARGE AND AIR
SUCTION DUCTS CONFIGURATION
TYPES C12, C32, C42, C52, C82
The DUA plus boiler has been approved for
the following air suction and smoke
evacuation tipes:
C12
Boiler designed for connection to horizontal
exhaust and suction terminals directly into
the atmosphere using coaxial or dual ducts.
The distance between the air intake duct
and the flue gas outlet duct must be at least
250 mm and both end sections must
be located within a 500 mm square.
C32
Boiler designed for connection to vertical
discharge and suction outlets directly into
the atmosphere using coaxial or dual ducts.
The distance between the air intake duct
and the flue gas outlet duct must be at least
250 mm and both end sections must be
located within a 500 mm square.
C42
Boiler designed for connection to collective
chimneys including two ducts,
one for the suction of combustion
air and the other for the exhaust
of the combustion products,
through coaxial or dual ducts.
The chimney must comply with relevant
applicable law provisions.
C52
Boiler with separate combustion air
suction and combustion product
exhaust ducts.
These ducts can discharge into areas
with different pressure.
The dual ducts must not be located
on two opposite walls.
C82
Boiler designed for connection to an air
supply terminal and fitted to an individual
or shared chimney.
The chimney must comply with relevant
applicable law provisions.
type
C12
type
C32
type
C52
type C82
type
C42