KyungDong KDB-101GOM+ Installation Manual page 25

G O M + 표 준 형 - 영 문
FF Intake/ Exhaust flue Diameter
Model
131/161/201/251GOM+
301GOM+
Apartment Construction
1.
Common Exhaust duct, effective cross section calculation
When installing the gas boiler in an apartment complex, effective cross section of
the exhaust duct should be greater than the following calculations. Effective cross
section of common exhaust duct (mm
2
0.6 (mm h / kcal) X boiler simultaneous usage rate (F) ＋ horizontal projectile area
2
(mm ) X maximum exhaust flue number on each floor (＝2)
Boiler simultaneous usage rate
No. of boilers
1
2
3
4
5
6
7
Simultaneous Usage Rate (F) should be set according to selections, but must not
be less than the value given in the chart.
When the area of the common exhaust duct is a square, the cross section should
be 1.4 times larger than the area calculated in the above formula.
Intake/exhaust flue outside diameter (mm)
φ100
φ110
Within 600mm of the exhaust flue top, there
should be no openings such as a window.
If exhaust gas enters inside, it may cause exhaust
gas poisoning.
2
) ＝ total gas usage of the boiler (kcal/h) X
Simultaneous
No. of Boilers
Usage Rate (F)
1.00 8
1.00 9
1.00 10
0.95 11
0.92 12
0.89 13
0.86 14
57
Hole through the Wall (mm)
φ110
φ120
Simultaneous
No. of Boilers
Usage Rate (F)
0.84 15
0.82 16
0.81 17
0.80 18
0.80 19
0.80 20
0.79 Over 21
Simultaneous
Usage Rate (F)
0.79
0.78
0.78
0.77
0.76
0.76
0.75