RLC-SVX023A
23
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
Interconnecting Wiring (Field Wiring
Required)
Important:
Do not turn chiller on or off using the chilled
water pump interlocks.
When making field connections, refer to the appropriate
field layout, wiring, schematics and controls diagrams
that ship with the unit. Whenever a contact closure
(binary output) is referenced, the electrical rating is:
At 120 VAC
7.2 amp resistive
2.88 amp pilot duty
250
W,
7.2
FLA,
43.2
LRA
At 240 VAC
5.0 amp resistive
2.0 amp pilot duty
250
W,
3.6
FLA,
21.3
LRA
Installation - Electrical
Whenever a dry contact input (binary input) is
referenced, the electrical rating is 24VDC, 12 mA.
Whenever a control voltage contact input (binary input)
is referenced, the electrical rating is 120 VAC, 5mA.
Some connections require the user to provide an
external source of power. The 110V control power
transformer is not sized for additional load.
Chilled Water Pump Control
Tracer UC800 has a evaporator water pump output
relay that closes when the chiller is given a signal to
go into the Auto mode of operation from any source.
The contact is opened to turn off the pump in the event
of most machine level diagnostics to prevent the build
up of pump heat. To protect against the build-up of
pump heat for those diagnostics that do not stop and/
or start the pump and to protect against the condition
of a bad flow switch, the pump shall always be stopped
when refrigerant pressure is seen to be close to heat
exchanger design pressure.
Chilled Water Flow Interlock
Tracer UC800 has an input that will accept a contact
closure from a proof-of-flow device such as a flow
switch. The flow switch is to be wired in series with the
chilled water pump starter’s auxiliary contacts. When
this input does not prove flow within 20 minutes relative
to transition from Stop to Auto modes of the chiller, or
if the flow is lost while the chiller is in the Auto mode
of operation, the chiller will be inhibited from running
by a non-latching diagnostic. The flow switch input
shall be filtered to allow for momentary openings and
closings of the switch due to turbulent water flow. This
is accomplished with a 6 seconds filtering time. The
sensing voltage for the condenser water flow switch is
115/240 VAC.
IMPORTANT!
DO NOT cycle the chiller through starting
and stopping the chilled water pump. This could cause
the compressor to shut down fully loaded. Use the
external stop/start input to cycle the chiller.
