CG-SVX027D-GB
31
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
Electrical Data
Control Power Supply
Note: it is highly recommendable to read this section
within the wiring diagrams, where the different
components mentioned here are referenced.
General
Unit is equipped with a control transformer (1T1), factory
mounted, wired and tested, therefore it is not necessary
to provide additional control power voltage to the unit.
No other loads should be connected to the control
power transformer. All units are factory-connected for
appropriate labelled voltages.
On top of the main unit controller (1A2), when chosing
digit 32 = A (with customer input/output options), an
auxiliary processor module (1A4) will be mounted on the
unit to host the options described on the follow chapter.
Interconnecting Wiring /
Low Voltage Wiring
WARNING Ground Wire!
All field-installed wiring must be completed by a
qualified personnel, and must comply with local codes
and regulations. Failure to follow those instructions
could result on death or serious injury. The remote
devices described on the sections ahead require low
voltage wiring. All wiring to and from these remote
input devices to the Control Panel must be made with
shielded, twisted pair conductors. Be sure to ground the
shielding only at the panel.
Note : To prevent control malfunctions, do not run
low voltage wiring (< 30V) in conduit with conductors
carrying more than 30V.
Customer Options
Alarm and Status Relay Outputs (Programmable Relays)
A programmable relay concept provides for enunciation
of certain events or states of the chiller, selected
from a list of likely needs, while only using physical
ouputs relays, as shown on the field diagram. Four
electromechanical relays are provided, integrated on the
auxiliary module 1A4, connected on blocks J5-6-7-8, as
part of the customer input/ouput option. There is a main
insulation among the relays; the double-insulation does
exist towards the rest of the control.
The digital outputs must be properly protected against
short circuits and overloads. Moreover, they must feature
the same voltage, all 24 Vac or all 230 Vac., otherwise
24 Vac utilized must be a main insulation.
The minimum cross-section of the cables used for the
digital outputs must be 1.5 mm2.
Relay characteristics
relay ratings 2000 VA, 250 Vac, 8 A
approvals related to pCOE 2A FLA, 12A LRA, D300
according to UL, (30.000 cycles)
2 A resistive, 2 A inductive, cosj= 0.4, 2(2)A according to
EN 60730-1, (100.000 cycles)
The list of events/states that can be assigned to the
programmable relays can be found on the follow table.
The relay will be energized when the event/state occurs:
Table 4 - Alarm and Status Relay Output Configuration Table (see also wiring diagram)
Device
Designation
Description
Location
conn block
6K1
Relays, customer provided, unit status (Compressor running) : This output is true
whenever any compressor for the unit is running or commanded to be running, and
false when no compressor running or commanded to be running on the unit
J5-N01/C1
6K2
Relays, customer provided, unit status (programmable) Default is Latching Alarm
CKT1: This output is true whenever there is any active diagnostic that requires a
manual reset to clear, that affects the Chiller, the refrigerant circuit, or any of the
compressoroncircuit1.Thisclassificationdoesnotincludeinformationaldiagnostic.
J6 –N02/C2
6K3
Relays, customer provided, unit status (programmable) Default is Latching Alarm
CKT2: This output is true whenever there is any active diagnostic that requires a
manual reset to clear, that affects the Chiller, the refrigerant circuit, or any of the
compressoroncircuit2.Thisclassificationdoesnotincludeinformationaldiagnostic.
J7 –N03/C3
6K4
Relays, customer provided, unit status (programmable) Default is Chiller limit mode:
This output is true, whenever the chiller has been running in one of the unloading
types of limit modes (condenser, evaporator, compressor) continoulsy for 20 minutes
on any circuits
J8-N04/C4