JOHNSON CONTROLS
26
Form 160.00-N6
Issue date: 08/27/2021
Section 3 - Installation
• MVVSD not used as service equipment or as a
main section for a separately derived system, and
used on either a grounded or ungrounded system.
1. The MVVSD frame and any ground bus
must be grounded by means or equipment
grounding conductors having size in accor-
dance with NEC
Article 250
and run with the
main supply conductors or by bonding to the
raceway enclosing the main supply conduc-
tors in accordance with NEC.
2. Ground leads must be connected to cable
potheads or shields as specified by the cable
manufacturer.
Oil pump wiring
Oil pump field wiring terminals are designated 67, 68,
69, and GND. Standard 14 gauge wire may be used.
The following figure shows the connections for the oil
pump. The 1TB terminals can be found located within
the low voltage compartment at the bottom facing up-
wards.
Figure 11 -
Oil pump connections
LD12235b
Low voltage section
1TB
Remove jumper for
YD/YK-EP applications
24
16
53
L
2
R24
67
68
69 GND
See
for wire numbers
and termination points for YK, YD, and YKEP units,
respectively.
Table 4 -
Control and oil pump wire numbers and termination points for YK chiller
MVVSD connector
location
MVVSD - 1TB
24
16
53
L
2
R24
67
68
69
↑
↑
↑
↑
↑
↑
↑
↑
↑
Wire numbers
24
16
53
L
2
n/a
67
68
69
↓
↓
↓
↓
↓
↓
↓
↓
↓
Chiller-wire
termination location
OptiView panel - TB6
VSOP cabinet
24
16
53
L
2
n/a
L1
L2
L3
Table 5 -
Control and oil pump wire numbers and termination points for YD-SYS 1 and YD-SYS 2
MVVSD connector
location
MVVSD - 1TB
24
16
53
L
2
R24
67
68
69
↑
↑
↑
↑
↑
↑
↑
↑
↑
Wire
numbers
YD-SYS 1
124
116
153
L1
N1
R124
167
168
169
YD-SYS 2
224
216
253
L2
N2
R224
267
268
269
↓
↓
↓
↓
↓
↓
↓
↓
↓
OptiView panel - TB6
VSOP cabinet
OptiView
panel - TB6
VSOP cabinet
Chiller-wire
termination
location
YD-SYS 1
124
116
153
L1
N1
2
167
168
169
YD-SYS 2
224
216
253
L2
N2
2
267
268
269
Note:
For a YD product, there are two MVVSDs for each YD chiller. The YD has one OptiView panel, which contains two terminal strips. One
strip references the 100 series lines, and the second references the 200 series lines. The 100 series lines connects to one of the MV-
VSDs and the 200 series lines connects to the second MVVSD.
