Carrier Atmosphera 42EM Series Manual page 43
Ducted fan coil unit
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Also See for Atmosphera 42EM Series:
- Installation instructions manual (74 pages) ,
- Installation, operation and maintenance instructions (16 pages)
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9.7.2.1 - Air pressure drops (Pa) for octopus plenum boxes as a function of the number of spigots (200 mm Ø)
Sizes 2.1, 2.2, 2.3, 3.1, 3.2 and 3.3
3
Air flow (m
/h)
0
Air flow (l/s)
0
2 spigots
SUP
0
RET
0
3 spigots
SUP
0
RET
0
4 spigots
SUP
0
RET
0
5 spigots
SUP
0
RET
0
Legend:
SUP supply
RET return
9.7.3 - Pressure drops (Pa) for return air sound dampers
3
Air flow (m
/h)
Air flow (l/s)
Sound damper T1
Sound damper T2 and T3
100
200
300
400
28
56
83
111
0.9
3.5
7.9
14.0
0.7
2.7
8.1
10.9
0.2
0.7
1.6
2.9
0.2
0.7
1.7
3.0
0
0.2
0.4
0.7
0.1
0.3
0.8
1.4
0
0.1
0.3
0.5
0
0.2
0.4
0.7
100
300
28
83
0
1
0
0.5
500
600
700
800
139
167
194
222
21.8
31.4
17.1
24.6
4.5
6.5
6.9
116
4.6
6.7
9.1
11.9
1.1
1.6
2.1
2.8
2.1
3.0
4.1
5.4
07
1.0
1.4
1.8
1.1
1.6
2.1
2.8
500
700
900
139
194
250
3
7
11
1
2
3
900
1000
1100
1200
250
278
305
333
14.7
18.1
21.9
15.0
18.6
22.5
3.5
4.3
5.2
5.2
6.8
8.5
10.2
12.2
2.3
2.9
3.5
4.1
3.5
4.3
5.3
6.3
1000
1100
1200
278
305
333
-
-
-
3.5
4
5
1300
1400
1500
361
389
417
7.3
8.5
9.7
14.3
16.6
19.0
4.9
5.6
6.5
7.3
8.5
9.8
1300
361
-
6
43
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