RLC-SVX19E-GB
107
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
Installer-Supplied Components
The relay output from (1A11) is required to operate the
evaporator water-pump (CHWP) contactor. Contacts
should be compatible with a 115/230V (ac) control circuit.
The CHWP relay operates in different modes depending
on Tracer UC800 or Tracer BMS commands, if available, or
service pumpdown (see maintenance section). Normally,
the CHWP relay follows the AUTO mode of the chiller.
Whenever the chiller has no diagnostics and is in the
AUTO mode, regardless of where the auto command is
coming from, the normally-open relay is energized. When
the chiller exits the AUTO mode, the relay is timed open
for an adjustable (using TU) 0 to 30 minutes. The non-
AUTO modes in which the pump is stopped include Reset
(88), Stop (00), External Stop (100), Remote Display Stop
(600), Stopped by Tracer (300), Low-Ambient Run Inhibit
(200), and Ice Building complete (101).
Table 39 – Pump Relay Operations
Chiller mode
Relay Operation
Auto
Instant close
Ice building
Instant close
Tracer Override
Timed Open
Stop
Timed Open
Ice Complete
Instant Open
Diagnostics
Instant Open*
•
Exceptions noted in paragraphs following
When going from STOP to AUTO the CHWP relay is
energized immediately. If evaporator water flow is not
established in 4 minutes and 15 seconds, the Tracer
UC800 de-energizes the CHWP relay and generates a
non-latching diagnostic. If flow returns (i.e. other system
controlling the pump), the diagnostic is cleared, the
CHWP is re-energized, and normal control is resumed.
If evaporator water flow is lost after it has been
established, the CHWP relay remains energized, the
CHWP relay remains energized and a non-latching
diagnostic is generated. If flow returns, the diagnostic is
cleared and the chiller returns to normal operation.
In general, when there is either a non-latching or latching
diagnostic, the CHWP relay is turned off as though
there was a zero-time delay. Exceptions where the relay
continues to be energized occur with:
1. A low Chilled-Water Temperature diagnostic (non-
latching) (unless also accompanied by an Evaporator
Leaving-Water Temperature Sensor Diagnostic)
OR
2. A starter-contactor interrupt-failure diagnostic, in
which a compressor continues to draw current even
after commanded to shut down.
OR
3. A Loss of Evaporator Water Flow diagnostic (non-
latching) and the unit in the AUTO mode, after initially
having proven evaporator water flow.
Alarm and Status Relay Outputs
(Programmable Relays)
See RTAF User Guide for alarm and status relay outputs.
EDLS and ECWS Analog Input Signal
Wiring Details
See RTAF User Guide for EDLS and ECWS.
