Trane RAUJ-C20, Installation, Operation And Maintenance Manual

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64 SS-SVX11K-EN
• Install an outside air thermostat in series with the
flow switch to stop or prevent the unit from
operating below the recommended ambient
temperatures.
Low Voltage Wiring (AC & DC)
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss V Vo olltta ag ge e!!
F Fa aiillu urre e tto o d diisscco on nn ne ecctt p po ow we err b be effo orre e sse errv viicciin ng g cco ou ulld d
rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss iin njju urry y..
D Diisscco on nn ne ecctt a allll e elle eccttrriicc p po ow we err,, iin nccllu ud diin ng g rre em mo otte e
d diisscco on nn ne eccttss b be effo orre e sse errv viicciin ng g.. F Fo ollllo ow w p prro op pe err
llo occkko ou utt//tta ag go ou utt p prro occe ed du urre ess tto o e en nssu urre e tth he e p po ow we err
cca an n n no ott b be e iin na ad dv ve errtte en nttlly y e en ne errg giizze ed d.. V Ve erriiffy y tth ha att n no o
p po ow we err iiss p prre esse en ntt w wiitth h a a v vo ollttm me ette err..
W WA AR RN NIIN NG G
P Prro op pe err F Fiie elld d W Wiirriin ng g a an nd d G Grro ou un nd diin ng g
R Re eq qu uiirre ed d!!
F Fa aiillu urre e tto o ffo ollllo ow w cco od de e cco ou ulld d rre essu ulltt iin n d de ea atth h o orr
sse erriio ou uss iin njju urry y..
A Allll ffiie elld d w wiirriin ng g M MU US ST T b be e p pe errffo orrm me ed d b by y q qu ua alliiffiie ed d
p pe errsso on nn ne ell.. IIm mp prro op pe errlly y iin nsstta alllle ed d a an nd d g grro ou un nd de ed d
ffiie elld d w wiirriin ng g p po osse ess F FIIR RE E a an nd d E EL LE EC CT TR RO OC CU UT TIIO ON N
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
g grro ou un nd diin ng g a ass d de essccrriib be ed d iin n N NE EC C a an nd d y yo ou urr llo occa all//
sstta atte e//n na attiio on na all e elle eccttrriicca all cco od de ess..
Variable Air Volume (VAV) Units
• Install a field provided remote system control
switch to activate the system.
• Connect properly sized wiring from the field
provided economizer, if applicable, to the discharge
air controller in the unit control panel.
• Install and connect properly sized wiring from the
night setback relay contacts to the proper
termination points inside the unit control panel.
Verify the appropriate jumpers have been removed.
• Install the suction line thermostat onto the suction
line. Connect properly sized wiring between the
thermostat and terminal strip 7TB7 in the unit
control panel.
• Install the discharge air sensor and wire it to the
discharge air controller with shielded cable.
Constant Volume Units
• Install the zone thermostat, with or without
switching subbase.
• Connect properly sized control wiring to the proper
termination points between the zone thermostat
and the unit control panel.
• Install the discharge air sensor and connect it to the
master energy controller (MEC) with shielded cable.
• Connect properly sized wiring from the field
provided economizer, if applicable, to the master
energy controller (MEC) in the unit control panel.
EVP Chillers
• Install the appropriate jumpers on the chilled water
temperature controller for hot gas bypass operation
(if applicable). Refer to the control wiring diagram
that shipped with the unit for jumper details.
• Install and connect the chilled water temperature
sensor to the chilled solution temperature
controller with shielded cable.
• Install the proper staging resistor on to the chilled
water temperature controller.
Field Installed Power Wiring
W WA AR RN NIIN NG G
P Prro op pe err F Fiie elld d W Wiirriin ng g a an nd d G Grro ou un nd diin ng g
R Re eq qu uiirre ed d!!
F Fa aiillu urre e tto o ffo ollllo ow w cco od de e cco ou ulld d rre essu ulltt iin n d de ea atth h o orr
sse erriio ou uss iin njju urry y..
A Allll ffiie elld d w wiirriin ng g M MU US ST T b be e p pe errffo orrm me ed d b by y q qu ua alliiffiie ed d
p pe errsso on nn ne ell.. IIm mp prro op pe errlly y iin nsstta alllle ed d a an nd d g grro ou un nd de ed d
ffiie elld d w wiirriin ng g p po osse ess F FIIR RE E a an nd d E EL LE EC CT TR RO OC CU UT TIIO ON N
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
g grro ou un nd diin ng g a ass d de essccrriib be ed d iin n N NE EC C a an nd d y yo ou urr llo occa all//
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!!
F Fa aiillu urre e tto o u usse e cco op pp pe err cco on nd du ucctto orrss cco ou ulld d rre essu ulltt iin n
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
d de essiig gn ne ed d o orr q qu ua alliiffiie ed d tto o a acccce ep ptt o otth he err tty yp pe ess o off
cco on nd du ucctto orrss..
See Dimensions and Weights chapter for overall
dimensional layouts for the field installed wiring
locations. To insure that the unit’s supply power wiring
is properly sized and installed, follow the guidelines
outlined below.
N No otte e:: All field installed wiring must conform to NEC
guidelines as well as state and local codes.
Verify that the power supply available is compatible
with the unit’s nameplate ratings. The available supply
power must be within 10% of the rated voltage
stamped on the nameplate.
IIn nsstta alllla attiio on n E Elle eccttrriicca all