11UNT-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
CG-SVX051A-GB
47
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
connections
• All control (interconnecting) wiring (in conduit) for
field supplied devices
• Fused-disconnect switches
Power Supply Wiring
All power supply wiring must be sized and selected
accordingly by the project engineer in accordance with
standard IEC 60364. All wiring must comply with local
codes. The installing (or electrical) contractor must
provide and install the system interconnecting wiring, as
well as-the power supply wiring. It must be
properly sized and equipped with the appropriate fuse-
disconnect switches. The type and installation location(s)
of the fused-disconnect switches must comply with all
applicable codes.
Cut holes into the sides of the control panel for the
appropriately-sized power wiring conduits. The wiring
is passed through these conduits and connected to the
terminal blocks.
To provide proper phasing of 3 phase input, make
connections as shown in field wiring diagrams and as
stated on the yellow WARNING label in the starter panel.
Proper equipment grounds must be provided to each
ground connection in the panel.
CAUTION! 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.
WARNING! To prevent injury or death, disconnect all
electrical power sources before completing wiring
connections to the unit.
CAUTION! The use of copper mono-conductors is the
preferred solution to avoid corrosion and overheating at
terminal connections.
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
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
water drainage for freeze protection, it is compulsory to
disconnect the Chilled/Hot Water Exchanger heaters to
protect them from burning due to overheat
Water Pump Power Supply
Provide power-supply wiring with fused disconnect
switch(es) for the chilled water pump(s).
Interconnecting Wiring
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
Chilled/hot water-pump output relay close when the unit
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 buildup of pump heat.
CAUTION! The water pump output relays must be used
to control the water pumps and to benefit of the water
pump timer function at unit startup and shutdown. This
is required when the unit is in operation under freezing
conditions, especially if the chilled / hot water loops does
not contain glycol.
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.
Installer-Supplied Components
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