Flue Components of the Waterheater
40
Pressure Switch. 2 speed
Setting range with 9'10"(3 m) of flue duct:
st
1 speed: 1.4 mbar (at 27,769 Btu / 7 Th)
nd
2 speed: 2.05 mbar (at 79,340 Btu / 20 Th)
Should an obstruction occur at low speed,
shift to full speed to try to overcome it.
Exhaust fan
2 speed
1st speed: R.P.M.:1,900
Average current: 0.13 A
2nd speed: R.P.M.:2,720
Average current: 0.35A
Hood extractor
Pressure switch
connecting pipes
Socket for connection
to specific flue duct
Outlet Ø 2.36" (60)
Laura 20/20F wall-hung waterheaters
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