A.O. Smith 110 Boiler User Manual


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Installation and Service Manual Upsilon-Series
28
7.5.1 Collectiveuegasoutletunder-pressure
Diameter and venting lengths of the ue gas outlet/air supply:
- Open system, with under-pressure
(calculated with thermal draft)
under atmospheric circumstances.
Table 7.5.1.a
Diameter and venting lengths of the ue gas outlet/air supply:
- Closed system, with under-pressure
(calculated with thermal draft)
under atmospheric circumstances.
Table 7.5.1.b
d
d
h
=d
=d
d
d
d
d
h
Output(P)
kWat
80/60°C
70 110 140 h = 2 - 5 h = 5 - 9 h = 9 - 13 h = 13 - 17
152 1 1 210 200 190 190
180 1 1 210 200 190 190
212 1 1 210 200 190 190
240 2 210 200 190 190
272 1 1 1 300 270 260 250
300 1 2 300 270 260 250
332 1 2 300 270 260 250
360 3 300 270 260 250
392 1 1 2 360 330 310 300
424 2 2 360 330 310 300
452 1 3 360 330 310 300
480 4 360 330 310 300
512 1 1 3 440 380 360 340
544 2 3 440 380 360 340
572 1 4 440 380 360 340
600 5 440 380 360 340
632 1 1 4 470 420 400 380
660 1 5 470 420 400 380
692 1 5 470 420 400 380
720 6 470 420 400 380
752 1 1 5 550 470 430 410
784 2 5 550 470 430 410
812 1 6 550 470 430 410
840 7 550 470 430 410
872 1 1 6 600 510 470 440
900 1 7 600 510 470 440
932 1 7 600 510 470 440
960 8 600 510 470 440
Assumptions: Trega-cap on flue outlet, cross-cap on air intake.
In case of open outlet or diffuser pressures will be better.
Tinside, Toutside= + 20C, O2= 4,7%, Trg=50C.
DimensionscascadeflueUpsilon
Opensystem,underpressure
TypeUB d=minimumdiameterØinmm
Output(P)
kWat
80/60°C
70 110 140 h = 2 - 5 h = 5 - 9 h = 9 - 13 h = 13 - 17
152 1 1 240 220 220 220
180 1 1 240 220 220 220
212 1 1 240 220 220 220
240 2 240 220 220 220
272 1 1 1 330 300 290 270
300 1 2 330 300 290 270
332 1 2 330 300 290 270
360 3 330 300 290 270
392 1 1 2 390 370 350 330
424 2 2 390 370 350 330
452 1 3 390 370 350 330
480 4 390 370 350 330
512 1 1 3 460 410 390 380
544 2 3 460 410 390 380
572 1 4 460 410 390 380
600 5 460 410 390 380
632 1 1 4 500 460 440 420
660 1 5 500 460 440 420
692 1 5 500 460 440 420
720 6 500 460 440 420
752 1 1 5 550 500 470 460
784 2 5 550 500 470 460
812 1 6 550 500 470 460
840 7 550 500 470 460
872 1 1 6 600 540 510 490
900 1 7 600 540 510 490
932 1 7 600 540 510 490
960 8 600 540 510 490
Assumptions: Trega-cap on flue outlet, cross-cap on air intake.
In case of open outlet or diffuser pressures will be better.
Tinside, Toutside= + 20C, O2= 4,7%, Trg=50C.
TypeUB d=minimumdiameterØinmm
DimensionscascadeflueUpsilon
Closedsystem,underpressure,parallel
 NOTE!
1.IPX0DatuecategoryB
23
andB
33
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