Unical RTN 24, Installation, Use And Maintenance Manual

Page: 13 / 36

13
Installation info
2.2.6 - SMOKE DISCARGE AND
AIR SUCTION DUCT
CONFIGURATION
C12, C32, C42, C52, C62,
C82 - B22
type
C12
type
C32
type
C52
type C82
type
C62
type
C42
SEPARATE
type B22
C12 Boiler designed for connection to hori-
zontal exhaust and suction terminals
directly into the atmosphere
using coaxial or dual ducts. The distan-
ce 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 verti-
cal discharge and suction outlets directly
into the atmosphere
using coaxial or dual ducts. The distan-
ce 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 col-
lective chimneys including two ducts,
one for the suction of com-
bustion air and the other for the exhaust
of the combustion products,
through coaxial or dual ducts.
The chimney must comply with rele-
vant applicable law provisions.
C52 Boiler with separate combustion air
suction and combustion product
exhaust ducts.
These ducts can discharge into are-
as with different pressure.
The dual ducts must not be located
on two opposite walls.
C62 Boiler that has to be connected to a
system of air supply and smoke of ap-
proved type and sold apart.
C82 Boiler designed for connection to an air
supply terminal and fitted to an indivi-
dual or shared chimney.
The chimney must comply with rele-
vant applicable law provisions.
B22 Boiler designed for connection to an
external flue gas evacuation duct, with
the air for combustion taken from the
room in which the boiler is installed.
For this type of installation the boiler
house follows the same installation re-
quirements used for the open type boi-
lers.
Note: type B22
is not approved by
Turkish market.