Trane GVAF Series Installation Operation & Maintenance page 19

Evaporator Piping Components
Piping components include all devices and controls used to provide proper water system operation and unit operating
safety. A typical GVAF evaporator piping is shown below.
Sound power levels
Figure 5 – Typical GVAF evaporator water piping
Discharge
5
4
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
7
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
Intake
Measurement conditions:
Measurements taken at the horizontal air intake.
1 = Isolation valve
Fan
2 = Vibration isolators
Unit speed
3 = Evaporator – End view (2-pass)
1
4 = Evaporator Waterbox
FWD 08 2
3
5 = Vent
1
6 = Strainer
FWD 10 2
7 = Drain
3
1
Entering Chilled Water Piping
FWD 12 2
3
1
• Air vents to bleed the air from the system (to be placed
FWD 14 2
on the highest point)
3
• Water pressure gauges with shutoff valves 1
FWD 20 2
• Vibration eliminators
3
• Shutoff (isolation) valves
• Thermometers if desired (temperature readings
available on chiller controller display)
• Clean-out tees
• Pipe strainer
CTV-SVX009D-GB UNT-PRC002-GB
3
Power level in dB(A), per Hz frequency band
6
125 250 500
B
55 50 42
57 54 47
58 57 50
57 51 45
58 54 48
60 58 1 50
57 51 45
58 54 48
60 58 50
56 62 50
61 66 55
63 69 58
57 63 51
1
61 66 55
7
C
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
1000 2000
2
37 37
40 30
42 32
42 34
45 38
48 40
42 34
45 38
48 40
48 39
53 47
56 50
49 40
53 47
56 50
2
Pi = Pressure gauge
FT = Water Flow Switch
1000 2000
T1 = Evaporator Water Inlet Temperature Sensor
53 46
T2 = Evaporator Water Outlet Temperature Sensor
60 53
62 56
A = Isolate unit for initial water loop cleaning
58 51
B = Vent must be installed at the high point of the line
62 56
C = Drain must be installed at the low point of the line
65 59
58 51
Leaving Chilled Water Piping
62 56
65 59
65 57
• Air vents to bleed the air from the system (to be placed
71 64
on the highest point)
75 69
• Water pressure gauges with shut off valves 64 56
71 65
• Vibration eliminators
74 69
• Shutoff (isolation) valves
• Thermometers (temperature readings available on the
chiller controller display)
• Clean-out tees
• Balancing valve
• Flow Proving Device
Evaporator Piping
Overall power
4000 8000 dB(A)
1
A
31 30 46
38 40 50
40 43 53
33 28 48
39 35 51
42 39 54
33 28 48
39 35 51
42 39 54
38 36 56
46 45 60
50 49 63
39 37 57
46 45 60
1
50 49 63
A
Overall power
4000 8000 dB(A)
45 42 57
53 53 64
55 57 67
48 44 61
55 52 66
59 57 69
48 44 61
55 52 66
59 57 69
50 46 68
59 57 74
64 63 78
52 50 69
61 61 75
66 66 78
11
19