Sime Format System 25 HE, Инструкции по установке и обслуживанию

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2.6 SEPARATE DUCTS
(Optional alternative twin
pipe system)
A special kit may be used to separate the
flue gas outlet from the fresh air intake.
The intake may be installed to the right or
left of the flue gas outlet. Both ducts may be
oriented in any direction. Refer to fig. 7 for
positioning.
The maximum overall length of the intake
and exhaust ducts depends on the head
losses of the single fittings installed
(excluding the doublers) and must not be
greater than 13 mm H
2
O.
For head losses in the fittings, refer to
Table 4 .
NOTE: to use only special accessories for
condensing boilers.
2.6.1 Separate pipe accessories
Kit code 8089907 is supplied for this pur-
pose (fig. 8).
7
11
8
Ø 80
Ø 80
16
6
156,5
63,5
76
12
6
19
7
CA
CA
CS
Fig. 7
KEY
CA
Inlet
CS Outlet
1
2 3
4
5 3
Fig. 8
KEY
1 Blind flange
2 Flue gas duct flange
3 Fixing screw
4 Gasket ø 125/95
5 Intake duct collar
TABLE 4
Accessories ø 80 Head loss (mm H
2
O)
Inlet Outlet Roof outlet
90° elbow MF 0,30 0,40 –
45° elbow MF 0,20 0,30 –
Extension L. 1000 (horizontal) 0,20 0,30 –
Extension L. 1000 (vertical) 0,30 0,20 –
Outlet terminal – 0,30 –
Inlet terminal 0,10 – –
Doubler fitting 0,20 – –
Roof outlet terminal L.1240 – – 0,50