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Figure 9 – Hydraulic module water chart
Sound power levels
Discharge
Measurement conditions:
Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m
long) fixed to its discharge opening.
Fan
Unit
speed
9
1
FWD 08
2
3
1
FWD 10
2
3
1 = Twin centrifugal pump
1
2 = Water strainer
FWD 12
2
3 = Balancing valve
3
1
4 = Drain valve
FWD 14
2
5 = Valve for pressure point
3
6 = Expansion tank
1
7 = Pressure relief valve
FWD 20
2
3
8 = Antifreeze protection
9 = Evaporator
Intake
Pi = Gauge
TT = Temperature sensor
Measurement conditions:
Measurements taken at the horizontal air intake.
Fan
Unit
speed
1
FWD 08
2
3
1
FWD 10
2
3
1
FWD 12
2
3
1
FWD 14
2
3
1
FWD 20
2
3
CTV-SVX009D-GB
UNT-PRC002-GB
5
5
TT
Power level in dB(A), per Hz frequency band
TT
125
250
500
55
50
42
5
4
3
4
57
54
47
8
58
57
50
57
51
45
58
54
48
60
58
50
57
51
45
58
54
48
60
58
50
56
62
50
61
66
55
63
69
58
57
63
51
61
66
55
63
69
58
Power level in dB(A), per Hz frequency band
125
250
500
56
55
55
63
62
60
66
65
63
62
58
55
66
63
60
70
67
63
62
58
55
66
63
60
70
67
63
66
65
65
73
72
69
78
76
73
68
72
64
76
76
68
78
79
71
Optional Integrated Pump Package
6
8
1
8
Pi
1000
2000
37
37
8
8
4
2
40
30
42
32
42
34
45
38
48
40
Chiller can be ordered with an optional integrated
42
34
hydraulic module. In this case, chiller will be provided
45
38
with the following components factory mounted and
48
40
tested:
48
39
53
47
• Twin centrifugal water pump, Low pressure or High
56
50
pressure (option)
49
40
53
47
• Water strainer to protect the pump against impurities in
56
50
the circuit
• Expansion module with expansion vessel and pressure
relief valve sufficient to ensure the expansion of the
water loop ability
• Thermal insulation for antifreeze protection
• Balancing valve for equilibrate the flow of water circuit
• Drain valve
1000
2000
53
46
• Temperature sensor
60
53
62
56
Note: A pressure switch device to detect lack of water
58
51
is not included in the pump package. Installation of this
62
56
type of device is highly recommended to avoid sealing
65
59
damage due to operation of pump without enough water.
58
51
62
56
65
59
65
57
71
64
75
69
64
56
71
65
74
69
7
5
Overall power
4000
8000
dB(A)
31
30
38
40
40
43
33
28
39
35
42
39
33
28
39
35
42
39
38
36
46
45
50
49
39
37
46
45
50
49
63
Overall power
4000
8000
dB(A)
45
42
53
53
55
57
48
44
55
52
59
57
48
44
55
52
59
57
50
46
59
57
64
63
52
50
61
61
66
66
46
50
53
48
51
54
48
51
54
56
60
63
57
60
57
64
67
61
66
69
61
66
69
68
74
78
69
75
78
11
23
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