Trane TWA0724-A Series, Installation, Operation And Maintenance Manual

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SSP-SVX001D-EN 25
Unit Power Supply
The installer must provide line voltage circuit(s) to the
unit main power terminals as shown by the unit wiring
diagrams. Adhesive backed diagrams are affixed inside
the control box cover panel. Wiring diagrams are also
available through e-Library or by contacting a local
sales office. Power supply must include a disconnect
switch in a location convenient to the unit. Ground the
unit according to local codes and provide flexible
conduit if codes require and/or if vibration transmission
may cause noise problems.
IIm mp po orrtta an ntt:: All wiring must comply with applicable
local and national (NEC) codes. Type and
location of disconnect switches must
comply with all applicable codes.
W WA AR RN NIIN NG G
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sse erriio ou uss iin njju urry y..
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h ha azza arrd dss.. T To o a av vo oiid d tth he esse e h ha azza arrd dss,, y yo ou u M MU US ST T ffo ollllo ow w
rre eq qu uiirre em me en nttss ffo orr ffiie elld d w wiirriin ng g iin nsstta alllla attiio on n a an nd d
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sstta atte e//n na attiio on na all e elle eccttrriicca all cco od de ess..
N NO OT TIIC CE E
U Usse e C Co op pp pe err C Co on nd du ucctto orrss O On nlly y!!
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e eq qu uiip pm me en ntt d da am ma ag ge e a ass tth he e e eq qu uiip pm me en ntt w wa ass n no ott
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Low Voltage Wiring
Mount the indoor thermostat, zone sensor, or
programmable zone sensor in accordance with the
corresponding thermostat installation instructions.
Install color-coded, weather-proof, multi-wire cable
according to the Condenser and Air Handler Pairing
guide (SS-SVN016*-EN).
N No otte e:: Refer to thermostat or zone sensor wire
installation guide for proper wire gauge.
Symbio ™ ™ Controls
Wiring shown with dashed lines is to be furnished and
installed by the customer. All customer supplied wiring
must be copper only and must conform to NEC and
local electrical codes. Codes may require line of sight
between disconnect switch and unit.
Figure 14. Symbio ™ ™ jobsite connections
Zone Sensor
See Note 2
T’stat
See Note 2
Air Handler
Disconnect Switch
(By Others)
Disconnect Switch
(By Others)
See Note 1
Electric
Heat Accessory
Disconnect Switch
(By Others)
See Note 1
B
A
B
D
E C
P Po ow we err W Wiirre ess
A A.. 3 wires, line voltage for 3 phase, 1 grounding wire**
B B.. 3 wires, line voltage for 3 phase, (2 wires for single
phase) 1 grounding wire**
C Co on nttrro oll W Wiirre ess
C C.. Heat Pump thermostat: 6 to 9 wires depending on
T’stat options and stages of cooling and heating
D D.. Wiring between indoor and outdoor unit: 5 to 11
wires depending on unit control options*
E E.. Zone Sensor: 4 to 7 wires depending on zone sensor
model*
C Co om mm mu un niicca attiio on n ssiig gn na all w wiirre ess rre eq qu uiirre e ssh hiie elld de ed d
ttw wiisstte ed d p pa aiirrss..
Use factory-supplied 165 ft. length of Comlink cable
with a PVC jacket, 18/1 PR, stranded shield, 25 PF/FT
plenum rated for the field communication signal
wiring. Refer to wiring diagram schematics for
identification of shielded twisted pairs.
N No otte ess::
1. When electric heater accessory is used,
single point power entry or dual point power
entry is field optional. Single point power
entry option is through electric heater only.
2. *Choose only one of the following;
Thermostat, Mechanical Zone Sensor,
Programmable Zone Sensor Panel or BAS
Zone Sensor.
3. **
W WA AR RN NIIN NG G
E Elle eccttrriicca all S Sh ho occkk H Ha azza arrd d!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on nss b be ello ow w
cco ou ulld d rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss iin njju urry y..
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tte errm miin na all..
IIn nsstta alllla attiio on n