RLC-SVX19E-GB
45
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
Installation Requirements
Figure 2a – Lifting RTAF 090 – 205
Figure 2b – Lifting RTAF 250 – 450
Dimension and Weights
See lifting weight on the submittal on the unit for complete
information.
Center of Gravity
See instructions on lifting drawings available on request.
WARNING! Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for weight of the unit being lifted. Each of the cables
(chains or slings), hooks, and shackles used to lift the
unit must be capable of supporting the entire weight
of unit. Lifting cables (chains or slings) may not be the
same length. Adjust as necessary for even unit lift. Other
lifting arrangements could cause equipment or property
damage. Failure to follow instructions above or properly
lift unit could result in unit dropping and possibly crushing
operator/technician which could result in death or serious
injury.
WARNING! Improper Unit Lift!
Test lift unit approximately 10 cm to verify proper center of
gravity lift point. To avoid dropping of unit, reposition lifting
point if unit is not level. Failure to properly lift unit could
result in unit dropping and possibly crushing operator/
technician which could result in death or serious injury and
possible equipment or property- only damage.
Clearances
When installing the unit, provide enough space around the
unit to allow the installation and maintenance personnel
unrestricted access to all service points.
Unobstructed flow of condenser air is essential to maintain
chiller capacity and operating efficiency. When determining
unit placement, give careful consideration to ensuring a
sufficient air flow across the condenser coils heat-transfer
surface.
In case of enclosure around the unit, the height of the
enclosure must not be higher than the unit itself. If the
enclosure is higher than the unit, restrictive airflow louvers
should be fitted to ensure fresh air supply.
Unit Isolation and Leveling
Provide a foundation with sufficient strength and mass
to support the unit operating weight (that is, including
completed piping, full operating charges of refrigerant and
oil, and water). Refer to unit operating weights. The unit
must be leveled within 5 mm over its length and width.
Use shims as necessary to level the unit. For additional
reduction of sound and vibration, install the optional
elastomeric isolators.
Sound consideration
The most effective form of acoustical isolation is to locate
the unit away from any sound sensitive area. Structurally
transmitted sound can be reduced by elastomeric vibration
eliminators. Spring isolators are not recommended. Consult
an acoustical engineer in critical sound applications.
For maximum isolation effect, isolate water lines and
electrical conduit. Rubber isolated piping hangers can be
used to reduce the sound transmitted through water piping.
To reduce sound transmitted through electrical conduit, use
flexible electrical conduit.
EU and Local Regulations codes on sound emissions should
always be considered. Since the environment in which a
sound source is located affects the sound pressure, unit
placement must be carefully evaluated.
