CTV-SVX009D-GB
21
11
UNT-PRC002-GB
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
Power level in dB(A), per Hz frequency band
Overall power
Unit
speed
125
250
500
1000
2000
4000
8000
dB(A)
1
55
50
42
37
37
31
30
46
FWD 08
2
57
54
47
40
30
38
40
50
3
58
57
50
42
32
40
43
53
1
57
51
45
42
34
33
28
48
FWD 10
2
58
54
48
45
38
39
35
51
3
60
58
50
48
40
42
39
54
1
57
51
45
42
34
33
28
48
FWD 12
2
58
54
48
45
38
39
35
51
3
60
58
50
48
40
42
39
54
1
56
62
50
48
39
38
36
56
FWD 14
2
61
66
55
53
47
46
45
60
3
63
69
58
56
50
50
49
63
1
57
63
51
49
40
39
37
57
FWD 20
2
61
66
55
53
47
46
45
60
3
63
69
58
56
50
50
49
63
Intake
Measurement conditions:
Measurements taken at the horizontal air intake.
Fan
Power level in dB(A), per Hz frequency band
Overall power
Unit
speed
125
250
500
1000
2000
4000
8000
dB(A)
1
56
55
55
53
46
45
42
57
FWD 08
2
63
62
60
60
53
53
53
64
3
66
65
63
62
56
55
57
67
1
62
58
55
58
51
48
44
61
FWD 10
2
66
63
60
62
56
55
52
66
3
70
67
63
65
59
59
57
69
1
62
58
55
58
51
48
44
61
FWD 12
2
66
63
60
62
56
55
52
66
3
70
67
63
65
59
59
57
69
1
66
65
65
65
57
50
46
68
FWD 14
2
73
72
69
71
64
59
57
74
3
78
76
73
75
69
64
63
78
1
68
72
64
64
56
52
50
69
FWD 20
2
76
76
68
71
65
61
61
75
3
78
79
71
74
69
66
66
78
Evaporator Piping
Pressure Gauges
Install field-supplied pressure components as shown in
Figure 6. Locate pressure gauges or taps in a straight run
of pipe; avoid placing them near elbow (at least at 10 pipe
diameter from discontinuity).
To read manifold pressure gauges, open one valve and close
the other (depending on the side of the desired reading), this
eliminate errors resulting from differently calibrated gauges
installed at unmatched elevations.
Pressure Relief Valves
Install a water pressure relief valve in the evaporator inlet
piping between evaporator and the inlet shutoff valve. Water
vessels with close-coupled shutoff valves have high potential
for hydrostatic pressure buildup on a water temperature
increase. Refer to applicable local codes for relief valve
installation.
Evaporator Flow Switch
Specific connection and schematic wiring diagram are
shipped within the unit. Some piping and control schemes,
particularly those using a single water pump for both chilled
and hot water, must be analyzed to determine how and/or if
a flow sensing device will provide the desired operation.
Flow Switch Installation – Typical Requirements
1. Mount the switch upright, with a minimum of 5 pipes
diameters of straight horizontal run on each side. Do not
install close to elbows, orifices, or valves. The arrow on
the switch must point in the direction of the flow.
2. To prevent switch fluttering, remove all air from the
water system. Tracer UC800 provides a 6 second time
delay after a “loss-of-flow” diagnostic before shutting
the unit down. Contact a Trane service representative if
nuisance machine shutdowns persist.
3. Adjust the switch to open when water flow falls below
nominal values. Evaporator data is given on the General
Information Section. Flow Switch contacts are closed on
proof of water flow.
4. Install a pipe strainer in the entering evaporator-water
line to protect components.
CAUTION!
Control voltage from the chiller to the flow
proving device is 110V AC.
