56
RT-SVX063E-EN
Startup the Unit
Use the following in conjunction with the
“Trane
Startup Checklist,” p. 62
, to ensure that the unit is
properly installed and ready for operation. Be sure to
complete all of the procedures described in this section
before starting the unit for the first time.
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..
☐
Turn the optional field supplied disconnect switch,
located upstream of the rooftop unit, to the “Off”
position.
☐
Turn the 115 volt control circuit fused disconnect
switch 1S1 to the “Off” position. It is located at the
top of the Main Control Box, behind the center
door.
☐
Check all electrical connections for tightness and
“point of termination” accuracy.
☐
Verify that the condenser airflow will be
unobstructed.
☐
Check the compressor crankcase oil level. Oil
should be visible in the compressor oil sight glass.
The oil level should be 1/2 to 3/4 high in the sight
glass with the compressor “Off”.
☐
Verify that service valves are open/back seated on
each circuit.
N
NO
OT
TIIC
CE
E
C
Co
om
mp
prre
esssso
orr D
Da
am
ma
ag
ge
e!!
E
Ex
xcce
essssiiv
ve
e lliiq
qu
uiid
d a
accccu
um
mu
ulla
attiio
on
n iin
n tth
he
e ssu
uccttiio
on
n lliin
ne
ess
cco
ou
ulld
d rre
essu
ulltt iin
n cco
om
mp
prre
esssso
orr d
da
am
ma
ag
ge
e..
D
Do
o n
no
ott a
allllo
ow
w lliiq
qu
uiid
d rre
effrriig
ge
erra
an
ntt tto
o e
en
ntte
err tth
he
e ssu
uccttiio
on
n
lliin
ne
e..
Do not start the unit in the cooling mode if the ambient
temperature is below the following minimum
recommended operating temperature:
N
No
otte
e:: See
, p. 105
for minimum outside air
temperature.
☐
Inspect the interior of the unit for tools and debris.
Install all panels in preparation for starting the unit.
Electrical Phasing
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..
IIm
mp
po
orrtta
an
ntt:: HIGH VOLTAGE IS PRESENT AT TERMINAL
BLOCK OR UNIT DISCONNECT SWITCH.
All units have a phase monitor installed inside the main
control box, behind the center door, in the top row of
components. If the phase monitor shows a green LED
indicator, all phases are normal. Unit should operate
normally. If the phase monitor shows a red LED
indicator, there is a phase error. This error could be a
loss of phase, phase imbalance, or reversed phasing
with customer supplied power wiring. Check for a loss
of phase, a phase voltage imbalance of more than 10%,
or disconnect all power and reverse any two customer
power leads.
Verifying Proper Fan Operation
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss S
Se
errv
viicce
e P
Prro
occe
ed
du
urre
ess!!
F
Fa
aiillu
urre
e tto
o ffo
ollllo
ow
w a
allll p
prre
ecca
au
uttiio
on
nss iin
n tth
hiiss m
ma
an
nu
ua
all a
an
nd
d
o
on
n tth
he
e tta
ag
gss,, ssttiicckke
errss,, a
an
nd
d lla
ab
be
ellss cco
ou
ulld
d rre
essu
ulltt iin
n
d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
T
Te
ecch
hn
niicciia
an
nss,, iin
n o
orrd
de
err tto
o p
prro
otte
ecctt tth
he
em
msse
ellv
ve
ess ffrro
om
m
p
po
otte
en
nttiia
all e
elle
eccttrriicca
all,, m
me
ecch
ha
an
niicca
all,, a
an
nd
d cch
he
em
miicca
all
h
ha
azza
arrd
dss,, M
MU
US
ST
T ffo
ollllo
ow
w p
prre
ecca
au
uttiio
on
nss iin
n tth
hiiss m
ma
an
nu
ua
all
a
an
nd
d o
on
n tth
he
e tta
ag
gss,, ssttiicckke
errss,, a
an
nd
d lla
ab
be
ellss,, a
ass w
we
ellll a
ass tth
he
e
ffo
ollllo
ow
wiin
ng
g iin
nssttrru
uccttiio
on
nss:: U
Un
nlle
essss ssp
pe
ecciiffiie
ed
d o
otth
he
errw
wiisse
e,,
d
diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicca
all p
po
ow
we
err iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
ecctt a
an
nd
d d
diisscch
ha
arrg
ge
e a
allll e
en
ne
errg
gy
y sstto
orriin
ng
g
d
de
ev
viicce
ess ssu
ucch
h a
ass cca
ap
pa
acciitto
orrss 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.. W
Wh
he
en
n n
ne
ecce
essssa
arry
y tto
o w
wo
orrkk w
wiitth
h lliiv
ve
e
e
elle
eccttrriicca
all cco
om
mp
po
on
ne
en
nttss,, h
ha
av
ve
e a
a q
qu
ua
alliiffiie
ed
d lliicce
en
nsse
ed
d
e
elle
eccttrriicciia
an
n o
orr o
otth
he
err iin
nd
diiv
viid
du
ua
all w
wh
ho
o h
ha
ass b
be
ee
en
n
ttrra
aiin
ne
ed
d iin
n h
ha
an
nd
dlliin
ng
g lliiv
ve
e e
elle
eccttrriicca
all cco
om
mp
po
on
ne
en
nttss
p
pe
errffo
orrm
m tth
he
esse
e tta
asskkss..
1. Close the disconnect switch or circuit protector
switch that provides the supply power to the unit
terminal block 2XD1 or the optional unit mounted
disconnect switch 2QB1.
2. Turn the 115 volt control fused disconnect circuit
switch to the On position.