Table of Contents
Advertisement
• Insulated separator kit Ø 80/80. Kit assembly (Fig. 27): install
the flange (4) on the central hole of the boiler, interposing the
gasket (1) and tighten with the flat-tipped hex screws included
in the kit. Remove the flat flange present in the lateral hole with
respect to the central one (according to needs) and replace it with
the flange (3), positioning the gasket (2) already present in the
boiler and tighten using the supplied self-threading screws. Insert
and slide cap (6) onto bend (5) from the male side (smooth), and
join bends (5) with the male side (smooth) in the female side
of flange (3). Fit bend (11) with the male side (smooth) into the
female side of flange (4). Fit the male end (smooth) of the intake
terminal (7) up to the stop on the female end of the bend (5),
making sure you have already inserted the wall sealing plates (8
and 9) that ensure correct installation between pipe and wall,
then fix the closing cap (6) on the terminal (7). Join the exhaust
pipe (10) with the male side (smooth) in the female side of the
bend (11) to the end stop, ensuring that the wall sealing plate
(8) is already inserted for correct installation between the pipe
and flue.
• Insulation of separator terminal kit. Whenever there are flue
gas condensate problems in the exhaust pipes or on the external
surface of the intake pipes, on request Immergas supplies
insulated intake-exhaust pipes. Insulation my be necessary on
the exhaust pipe, due to excessive loss of temperature of the flue
gas on their route. Insulation may be necessary on the intake
pipe as the air entering (if very cold) may cause the outside of
the pipe to fall below the dew point of the environmental air.
8
10
11
S
4
1
The kit includes:
N°1 - Exhaust gasket (1)
N°1 - Flange gasket (2)
N°1 - Female intake flange (3)
N°1 - Female exhaust flange (4)
N°1 - Bend 90° Ø 80 (5)
N°1 - Pipe closure cap (6)
N°1 - Intake terminal Ø 80
insulated (7)
5
5
6
7
8
9
3
A
2
N°2 - Internal wall sealing plates (8)
N°1 - External wall sealing plate (9)
N°1 - Discharge pipe Ø 80
insulated (10)
N°1 - Concentric bend 90°
Ø 80/125 (11)
MAX. 12 m
The figures (Fig. 28 and 29) illustrate different applications of
insulated pipes.
Insulated pipes are formed of a Ø 80 internal concentric pipe and
a Ø 125 external pipe with static air space. It is not technically
possible to start with both Ø 80 elbows insulated, as clearances
will not allow it. However starting with an insulated elbow is
possible by choosing either the intake or exhaust pipe. When
starting with the insulated intake bend it must be engaged on its
flange until it is taken up to stop on the flue gas exhaust flange,
a situation that takes the two intake flue gas exhaust outlets to
the same height.
• Temperature loss in insulated flue ducting. To prevent problems
of flue gas condensate in the exhaust pipe Ø 80, due to flue gas
cooling through the wall, the length of the pipe must be limited
to 12 m. The figure (Fig. 29) illustrates a typical insulation
application in which the intake pipe is short and the exhaust
pipe is very long (over 5 m). The entire intake pipe is insulated
to prevent moist air in the place where the boiler is installed, in
contact with the pipe cooled by air entering from the outside.
The entire exhaust pipe, except the elbow leaving the splitter is
insulated to reduce heat loss from the pipe, thus preventing the
formation of fume condensate.
When installing the insulated pipes, a section clamp
with pin must be installed every 2 metres.
C
82
27
MAX. 21 m
C
82
28
C
82
29
23
Advertisement
Table of Contents
