75
3.1
COMBUSTION CHAMBER
DIMENSIONS (fig. 10)
The. combustion. chamber. is. a. direct.
passage.type.and.is.conform.to.the.EN.
303-3. standard. annex. E.. The. dimen-
sions. are. shown. in. fig.. 10.. An. ade-
quate.protection.panel.is.mounted.on.
the.inside.wall.of.the.rear.head.of.all.
the.models.
3.2
SYSTEM AVAILABLE HEAD
(fig. 11)
The. head. available. for. the. heating.
plant.is.shown.as.a.function.of.the.flow.
in.graph.in.fig..11.
3 CHARACTERISTICS
L
Volume
.
mm.
dm
3
AQUA 25
405.
24,0
AQUA 35
505.
30,5
L
270
280
Fig..10
0
200
1600
1400
1200
1000
800
600
400
PORTATA.(l/h)
PREV
ALENZA.RESIDUA.mbar.(kPa)
500.(49,0)
400.(39,2)
100.(9,8)
200.(19,6)
300.(29,4)
AQUA
1800
600.(58,8)
601.(58,89)
594.(58,21)
535.(52,43)
492.(48,21)
455.(44,59)
400.(39,20)
321.(31,45)
239.(23,42)
Fig..11
FLOW.RATE.(l/h)
RESIDUAL
.HEAD
.mbar
.(kPa)