64
CVHE-SVX005B-EN
Terminal Clamps
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..
Terminal clamps are supplied with the motor terminals
to accommodate either bus bars or standard motor
terminal wire lugs. Terminal clamps provide additional
surface area to minimize the possibility of improper
electrical connections.
Wire Terminal Lugs
N
NO
OT
TIIC
CE
E
C
Co
om
mp
po
on
ne
en
ntt D
Da
am
ma
ag
ge
e!!
F
Fa
aiillu
urre
e tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err ssu
up
pp
plly
y w
wiirriin
ng
g a
an
nd
d
o
ou
uttp
pu
utt tto
o m
mo
otto
orr w
wiirriin
ng
g a
arre
e cco
on
nn
ne
ecctte
ed
d tto
o tth
he
e
p
prro
op
pe
err tte
errm
miin
na
allss cco
ou
ulld
d cca
au
usse
e cca
atta
assttrro
op
ph
hiicc ffa
aiillu
urre
e
o
off tth
he
e sstta
arrtte
err a
an
nd
d//o
orr m
mo
otto
orr..
Wire terminal lugs must be field supplied.
•
Use field-provided, crimp-type wire terminal lugs
properly sized for the application.
N
No
otte
e:: Wire size ranges for the starter line and load-
side lugs are listed on the starter submittal
drawings supplied by the starter
manufacturer or Trane. Carefully review the
submitted wire lug sizes for compatibility
with the conductor sizes specified by the
electrical engineer or contractor.
•
On 4160V and below,
a terminal clamp with a
3/8-in. (9.525-mm) bolt is provided on each motor
terminal stud; use the factory-supplied Belleville
washers on the wire lug connections. The following
figure illustrates the junction between a motor
terminal stud and terminal lug.
•
Torque for this assembly is 24 ft·lb (32.5 N·m).
•
Install but do NOT connect the power leads
between the starter and compressor motor. (These
connections will be completed under supervision of
a qualified Trane service engineer after the pre-start
inspection.)
Figure 43.
Terminal stud, clamp, and lug assembly
(4160V and below)
1
2
3
4
5
1. Belleville washer
2. Terminal lugs
3. Terminal clamp
4. Motor terminal stud
5. 3/8-in. bolt
Bus Bars
N
NO
OT
TIIC
CE
E
C
Co
om
mp
po
on
ne
en
ntt D
Da
am
ma
ag
ge
e!!
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 cca
au
usse
e a
an
n
e
elle
eccttrriicca
all ssh
ho
orrtt w
wh
hiicch
h cco
ou
ulld
d rre
essu
ulltt iin
n cco
om
mp
po
on
ne
en
ntt
d
da
am
ma
ag
ge
e..
R
Re
em
mo
ov
ve
e d
de
eb
brriiss ffrro
om
m iin
nssiid
de
e tth
he
e C
CP
PT
TR
R o
op
pttiio
on
n
e
en
nccllo
ossu
urre
e p
pa
an
ne
ell b
be
effo
orre
e ttu
urrn
niin
ng
g tth
he
e p
po
ow
we
err o
on
n..
Bus bars and extra nuts are available as a Trane option.
Install the bus bars between the motor terminals when
using a starter that is:
•
A low-voltage Adaptive Frequency
™
Drive (AFD)
•
Across-the-line
•
Primary reactor/resistor
•
Autotransformer
•
Customer-supplied
Connect T1 to T6, T2 to T4, and T3 to T5.
N
No
otte
e:: Bus bars are not needed in medium-voltage or
high-voltage applications since only
three terminals are used in the motor and starter.
When attaching starter leads to 6.6 to 7kV motor
terminals, the 1/2-in.-13 brass jam nuts should be
tightened to a maximum torque of 18 to 22 ft·lb (24.4 to
29.8 N·m). Always use a second wrench to backup the
