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Customer wiring interface connections are shown in
the electrical schematics and connection diagrams that
are shipped with the unit. The installer must provide the
following components if not ordered with the unit:
•
Power supply wiring (in conduit) for all field- wired
Sound power levels
connections
•
All control (interconnecting) wiring (in conduit) for
Discharge
field supplied devices
Measurement conditions:
•
Fused-disconnect switches
Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m
Power Supply Wiring
long) fixed to its discharge opening.
All power supply wiring must be sized and selected
Fan
Unit
speed
accordingly by the project engineer in accordance with
1
standard IEC 60364. All wiring must comply with local
FWD 08
2
codes. The installing (or electrical) contractor must
3
provide and install the system interconnecting wiring, as
1
FWD 10
2
well as-the power supply wiring. It must be
3
properly sized and equipped with the appropriate fuse-
1
FWD 12
2
disconnect switches. The type and installation location(s)
3
of the fused-disconnect switches must comply with all
1
applicable codes.
FWD 14
2
3
Cut holes into the sides of the control panel for the
1
appropriately-sized power wiring conduits. The wiring
FWD 20
2
is passed through these conduits and connected to the
3
terminal blocks.
Intake
To provide proper phasing of 3 phase input, make
connections as shown in field wiring diagrams and as
Measurement conditions:
stated on the yellow WARNING label in the starter panel.
Measurements taken at the horizontal air intake.
Proper equipment grounds must be provided to each
ground connection in the panel.
Fan
Unit
speed
CAUTION! Customer wiring interface connections are
1
shown in the electrical schematics and connection
FWD 08
2
diagrams that are shipped with the unit. The installer
3
must provide the following components if not ordered
1
FWD 10
2
with the unit.
3
1
WARNING! To prevent injury or death, disconnect all
FWD 12
2
electrical power sources before completing wiring
3
connections to the unit.
1
FWD 14
2
CAUTION! The use of copper mono-conductors is the
3
preferred solution to avoid corrosion and overheating at
1
FWD 20
terminal connections.
2
3
Control Power Supply
Multi-Pipe unit is provided with control power
transformer, it is not necessary to provide additional
control power voltage to the unit.
Heater Power Supply
The Chilled/Hot Water Exchanger are insulated from
ambient air and protected from freezing for temperature
down to -20°C by two thermostatically-controlled
immersion heaters combined with pumps activation
through Tracer Symbio™ 800. Whenever the ambient
temperature drops below 0°C the thermostat energizes
the heaters and the Tracer Symbio™ 800 activates
CG-SVX051A-GB
UNT-PRC002-GB
Installer-Supplied Components
Power level in dB(A), per Hz frequency band
125
250
500
55
50
42
57
54
47
58
57
50
57
51
45
58
54
48
60
58
50
57
51
45
58
54
48
60
58
50
56
62
50
61
66
55
63
69
58
57
63
51
61
66
55
63
69
58
Power level in dB(A), per Hz frequency band
125
250
500
56
55
55
63
62
60
66
65
63
62
58
55
66
63
60
70
67
63
62
58
55
66
63
60
70
67
63
66
65
65
73
72
69
78
76
73
68
72
64
76
76
68
78
79
71
the pumps. If ambient temperatures below -20°C are
expected, contact your Trane local office.
CAUTION! The control panel main processor does not
check for loss of power to the heat tape nor does it
verify thermostat operation. A qualified technician must
frequently verify power to the heat tape and
confirm operation of the heat tape thermostat, to avoid
catastrophic damage to the Chilled/Hot Water Exchanger.
CAUTION! With factory-fitted disconnect switch, trace
heating is taken from the live side of the isolator so
power remains on. Supply voltage to the heating tapes
is 400V.
Don't energize heaters without water. In case of winter
1000
2000
37
37
water drainage for freeze protection, it is compulsory to
40
30
disconnect the Chilled/Hot Water Exchanger heaters to
42
32
protect them from burning due to overheat
42
34
45
38
48
40
Water Pump Power Supply
42
34
45
38
Provide power-supply wiring with fused disconnect
48
40
48
39
switch(es) for the chilled water pump(s).
53
47
56
50
Interconnecting Wiring
49
40
53
47
56
50
Chilled/Hot -Water Flow (Pump) Interlock
CMAF requires a field-supplied, control-voltage contact
input through a flow proving switch (5S1/5S2) and an
auxiliary contact (6K51/6K52). Connect the proving
switches and auxiliary contacts to terminal 2 connector
J2 cards (1A17). Refer to the field wiring diagram for
details.
Chilled/Hot Water Pump Control
1000
2000
53
46
Chilled/hot water-pump output relay close when the unit
60
53
is given a signal to go into the AUTO mode of operation
62
56
from any source. The contact is opened to turn off the
58
51
62
56
pump in the event of most machine-level diagnostics, to
65
59
prevent the buildup of pump heat.
58
51
CAUTION! The water pump output relays must be used
62
56
65
59
to control the water pumps and to benefit of the water
65
57
pump timer function at unit startup and shutdown. This
71
64
is required when the unit is in operation under freezing
75
69
64
56
conditions, especially if the chilled / hot water loops does
71
65
not contain glycol.
74
69
CAUTION! Refer to Freeze Protection section for
information about the water pumps.
Alarm and Status Relay Outputs
(Programmable Relays)
See CMAF User Guide for alarm and status relay
outputs.
External Demand Limit Setpoint (EDLS) and External
Chilled Water Setpoint (ECWS) Analog Input Signal
Wiring Details, see CMAF User Guide for EDLS and
ECWS.
Overall power
4000
8000
dB(A)
31
30
46
38
40
50
40
43
53
33
28
48
39
35
51
42
39
54
33
28
48
39
35
51
42
39
54
38
36
56
46
45
60
50
49
63
39
37
57
46
45
60
50
49
63
Overall power
4000
8000
dB(A)
45
42
57
53
53
64
55
57
67
48
44
61
55
52
66
59
57
69
48
44
61
55
52
66
59
57
69
50
46
68
59
57
74
64
63
78
52
50
69
61
61
75
66
66
78
11
47
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