4.2.5. With Down Flow Exhaust Fan
55
A
1619
B
1366
C
402
D
964
E
610
F
700
①
Duct connection space of blow air
②
Duct connection space of absorption air
③
Exhaust gravity damper
④
Axial exhaust fans
⑤
Balance connection extension
ROOF CONNECTOR WITH DOWN OUTPUT AND AXIAL RETURN FAN
70
90
1619
1834
1366
1748
402
415
964
1333
610
610
700
700
110
140
1834
1988
1748
2358
415
640
1333
1718
610
610
700
700
29
180
230
1988
2179
2358
3081
640
889
1718
2192
610
610
700
700