Johnson Controls York YK Quick start guide

WIRING DIAGRAMS
CONTRACTOR _________________________ PURCHASER _____________________________________________
ORDER NO. ____________________________ JOB NAME ________________________________________________
JCI CONTRACT NO. _____________________ LOCATION ________________________________________________
JCI ORDER NO. _________________________ ENGINEER _______________________________________________
REFERENCE DATE ________ APPROVAL DATE ________ CONSTRUCTION DATE _______
Supersedes: 160.76-PW6 (619) Form: 160.76-PW6 (919)
WIRING DIAGRAM
MODEL YK (STYLE H)
WITH OPTIVIEW CONTROL CENTER AND
SSS WITH MODBUS, LVVSD WITH MODBUS
Issue Date:
September 6, 2019
JOB DATA:
CHILLER MODEL NO. YK ________________________________________________________
NO. OF UNITS _____________
COMPRESSOR MOTOR ______________ VOLTS, 3-PHASE, _____________ HZ
OIL PUMP MOTOR _____________ VOLTS, 3-PHASE, _____________ HZ, _____________ FLA

JOHNSON CONTROLS
2
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
This equipment is a relatively complicated apparatus.
During rigging, installation, operation, maintenance,
or service, individuals may be exposed to certain com-
ponents or conditions including, but not limited to:
heavy objects, refrigerants, materials under pressure,
rotating components, and both high and low voltage.
Each of these items has the potential, if misused or
handled improperly, to cause bodily injury or death. It
is the obligation and responsibility of rigging, instal-
lation, and operating/service personnel to identify and
recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure
to comply with any of these requirements could result
in serious damage to the equipment and the property in
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
which it is situated, as well as severe personal injury or
death to themselves and people at the site.
This document is intended for use by owner-authorized
rigging, installation, and operating/service personnel. It
is expected that these individuals possess independent
training that will enable them to perform their assigned
tasks properly and safely. It is essential that, prior to
performing any task on this equipment, this individual
shall have read and understood the on-product labels,
this document and any referenced materials. This in-
dividual shall also be familiar with and comply with
all applicable industry and governmental standards and
regulations pertaining to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to specific situations:
Indicates a possible hazardous situation
which will result in death or serious injury
if proper care is not taken.
Indicates a potentially hazardous situa-
tion which will result in possible injuries
or damage to equipment if proper care is
not taken.
Identies a hazard which could lead to
damage to the machine, damage to other
equipment and/or environmental pollu-
tion if proper care is not taken or instruc-
tions and are not followed.
Highlights additional information useful
to the technician in completing the work
being performed properly.
External wiring, unless specied as an optional connection in the manufacturer’s product line, is not
to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls
and any external wiring must not be installed inside the micro panel. All wiring must be in accor-
dance with Johnson Controls’ published specications and must be performed only by a qualied
electrician. Johnson Controls will NOT be responsible for damage/problems resulting from improper
connections to the controls or application of improper control signals. Failure to follow this warn-
ing will void the manufacturer’s warranty and cause serious damage to property or personal injury.

JOHNSON CONTROLS 3
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
CHANGEABILITY OF THIS DOCUMENT
In complying with Johnson Controls’ policy for con-
tinuous product improvement, the information con-
tained in this document is subject to change without
notice. Johnson Controls makes no commitment to
update or provide current information automatically
to the manual or product owner. Updated manuals, if
applicable, can be obtained by contacting the nearest
Johnson Controls Service office or accessing the John-
son Controls QuickLIT website at http://cgproducts.
johnsoncontrols.com.
It is the responsibility of rigging, lifting, and operating/
service personnel to verify the applicability of these
documents to the equipment. If there is any question
regarding the applicability of these documents, rig-
ging, lifting, and operating/service personnel should
verify whether the equipment has been modified and
if current literature is available from the owner of the
equipment prior to performing any work on the chiller.
CHANGE BARS
Revisions made to this document are indicated with
a line along the left or right hand column in the area
the revision was made. These revisions are to technical
information and any other changes in spelling, gram-
mar or formatting are not included.
MANUAL DESCRIPTION FORM NUMBER
Wiring Diagrams – Field Connections for YK Chiller (Style H) with OptiView Control Center and
LVSSS or Remote/Unit-Mounted MVSSS, Remote MVVSD, or Remote MVEMS 160.76-PW1
Wiring Diagrams – Field Control Modications for YK Chiller Compressor Style Information 160.76-PW4
Wiring Diagrams – Model YK (Style H) with OptiView Control Center and SSS with Modbus,
LVVSD with Modbus 160.76-PW6
Wiring Diagrams – Model YK (Style H, Q3-Q7) with LVVSD 160.76-PW7
ASSOCIATED LITERATURE

JOHNSON CONTROLS
4
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
1. This wiring diagram describes the standard elec-
tronic control scheme for use with YORK Solid
State Starter or Variable Speed Drive. For details
of standard modications, refer to Form 160.76-
PW4.
2. Field wiring must be in accordance with the Na-
tional Electrical Code (NEC), as well as all oth-
er applicable codes and specications. Refer to
product Form 160.76-PW1 or 160.76-PW7 for
eld wiring connections.
Field wiring contacts may have
voltage present when power is
removed. Field wiring contacts
could be connected to external power
sources.
3. Numbers along the left side of the diagram are
line identication numbers. The numbers along
the right side indicate the line number location of
the relay contacts. An underlined contact location
signies a normally closed contact.
4. The main control panel class 1 eld wiring ter-
minal connection points are indicated by numbers
within a rectangle. The main control panel factory
wiring terminal connection points are indicated
by numbers within a triangle. Components mark-
ings are indicated by numbers within a circle.
Numbers adjacent to circuit lines are the circuit
identication numbers.
5. To cycle the unit on and off automatically with
contacts other than those shown, install a cycling
device between Terminals 1 and 13 (line 38). See
Note 7. If a cycling device is installed, the jumper
must be removed between Terminals 1 and 13.
6. A remote run-stop switch may be connected to
Terminals 1 and 7 (line 32). See Note 7. The re-
mote run-stop (line 32) is operative only in the
remote operating mode.
7. The device contact rating must be 5 mA at
115 VAC.
8. The contact rating is 5 A resistive at 120 VAC or
240 VAC.
NOTES
9. For the wiring diagram of LCSSS or LVVSD, re-
fer to product Form 160.76-PW6.
10. A jumper is installed between Terminals 21 and
24 for normal operation. To check motor rotation
on initial start-up, complete the following steps:
a. Remove the jumper and install a momentary
switch between Terminals 21 and 24.
b. Press the Start key on the display screen on
the control panel.
c. After completion of the prelube sequence,
jog the motor with the momentary switch.
d. When proper rotation is obtained, replace the
momentary switch with a jumper. The mo-
mentary switch must have a minimum con-
tact rating of 1 FLA, 10 LRA at 115 VAC.
A temporary momentary switch
or jumper is the only connection
permitted between Terminals 21
and 24. Connections of any other
devices to either Terminals 21 and
24 may cause inadvertent compressor
start-up.
11. Solid state motor overload contact (CM) LCSSS
is set up to trip at 105% FLA.
12. Contact rating is 5 A resistive at 250 VAC and
30 VDC, and 2 A inductive (0.4 PF) at 250 VAC
and 30 VDC.
13. Field connected control power supply is not re-
quired, as control transformer is supplied on the
solid state starter and the medium voltage variable
speed drive.
14. The maximum allowable current draw for the sum
of all loads is 2 A holding, 10 A inrush.
15. Each 115 VAC eld-connected inductive load,
that is relay coil, motor starter coil, and others,
must have a transient suppressor wired in parallel
with its coil, physically located at the coil. Spare
transient suppressors and control circuit fuses are
supplied in a bag attached to the green ground
screw located in the lower left corner of the con-
trol panel.

JOHNSON CONTROLS 5
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
L1 Inductor 4A, 9mH (460VAC) or 8A, 3mH
(230VAC)
LWT Low Water Temperature (Provided by RT3)
MOV Metal Oxide Varistor
OL Motor Starter Overloads
OP Low Oil Pressure (Provided by Two Trans-
ducers)
OVA Cond. Level Control Actuator
PRV Pre-Rotation Vane Motor
Remote Current Limit Setpoint (PWM); See
160.73-PW4
RES Resistor
RT1-RT9 Resistance Temperature Sensing Element
SUPR Transient Suppressor
TB1, TB3,
TB5 Terminal Block, Factory Wiring -
TB2, TB4 Terminal Block, Field Connection -
TB6 Terminal Block, Field (Bottom), Factory (Top)
VGD Variable Geometry Diffuser
VMP Vane Motor Potentiometer
VMS Vane Motor Switch
VS Variable Speed Oil Pump Drive
Field Wiring
Factory Wiring
Circuit Board or Enclosure Boundary
Jack (J1, J2, ...)
Plug (P1, P2, ...)
Wire Entrance Hole in Control Panel
Option (When Supplied) By YORK
Mechanical Linkage
Shield Cable
Metal Oxide Varistor
Terminal Located in Starter (TB1 or 1TB)
LEGEND
1HTR 1 Phase 1000 Watt Oil Heater
1LEP Low Evaporator Pressure (Provided by Evap
Pressure Transducer)
1OL 2T Protector (346V ad 600V Units Only)
1T Class 2 Power Supply Transformer
3M Condenser Pump Motor Starter
1R Compressor Motor / 1HTR Heater Control
Relay (K18 - Located on I/O Board)
3R VS Oil Pump Drive Run Relay
1SOL Oil Return Solenoid Valve
1SW Safety Stop Switch
CM Solid State Overload/Power Fault Contacts
FDTS Faulty Discharge Temp. Sensor
FLA Full Load Amps (Compressor Motor)
FU Fuse
PGD Proximity Gap Distance (Probe Located in
Compressor)
HDT Refrid. High Discharge Temp. (Provided By
RT2)
HOP High Oil Pressure (Provided by Two Trans-
ducers)
HOT High Oil Temperature (Provided by RT3)
HPCO High Pressure Cutout
K13, K14,
K17
Relays Mounted on I/O Board See Opera-
tion Manual
LCWT Leaving Chilled Water Temp (PWM) See
160.73-PW4
LEP Low Evaporator Pressure (Provided by Evap
Press Transducer)
LLS Liquid Level Sensor (Probe)
LOT Low Oil Temperature (Provided by RT3 and
Condenser Press Transducer)
LOTD Low Oil Temp. Differential (Provided by RT3
and Condenser Press Transducer)
HGBP Hot Gas Bypass

JOHNSON CONTROLS
6
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
ELEMENTARY DIAGRAM
LD19485a
L
1
1FU
L
3
2
58
1
2
3
4
5
27
26
40
45
44
43
42
LT BLU
GRN/YEL
IT
1
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2
29
16
6
53 1
K18
K14
K13
33
107
5, 7, 10, 19
64
62
61
55
56
151
150
34
32
1R
K18
25
22
23
1R-1
(K18)
1R-2
(K18)
TO LINE 41
35
1R-3
(K18)
36
2FU
30
28
165
161
162
164
154
155
156
157
K17
24
VAC
12
158
160
163
164
159
16 53
TO LINE 42
16
J33-4 J33-2
15
J34-7
J34-9
J34-12
OIL HEATER
THERMOSTAT
1HTR
OIL RETURN
SOLENOID VALVE
1HTR
1000 W
17
P34-14
P34-13
2
3
1
HPCO
J34-8
SUPR
1 SOL
12
3 4
59
GROUNDED
CONDUCTOR
RED
J34-5
J33-7
J34-1
J33-9
J34-15
J34-11
J34-4
J34-10
J34-2
2
J34-6
2
5
162
J34-3
VGD MOTOR
(OPTION FOR COMPR.
W/ VGD ONLY)
FIELD L2
X
L1
2
3
158
160
159
OPEN
FIELD
CLOSE
3
4
7
2
OPEN
CLOSE
4
6
2
MOV MOV
158
MOV
MOV
6
7
PRV MOTOR
3
25 21
CONTROL SUPPLY
115VAC 50/60Hz
20 AMP OR 2.0KVA SOURCE
20 AMP 250V
LITTLEFUSE FLQ 20
RUN
CONTACTS
REMOTE MODE
READY TO START
CYCLING
SHUTDOWN
ALARM
SAFETY
SHUTDOWN
ALARM
WARNING
ALARM
5 AMP 250V
BUSS ABC 5
I/O BOARD
031-01743-001
CHILLED
LIQUID PUMP
RUN
TO FLOW SWITCHES, COND. LEVEL CONTROL
ACTUATOR AND OPTIONAL HGBP
(SEE NOTE 11)
MOTOR CONTROLLER FAULT
(OPEN ON FAULT)
153
152
AUTO LUBE
RUN
(OPTIONAL)
2
J2
OIL HEATER
(Q3 THRU Q7)
22 21
11 12
1SW
SAFETY STOP
FOR UL VERSION ONLY
SEE SHEET 2
FOR CE AND K7 UL AND CE
VERSION
1
L2
X
L1
2
3
1
OIL
HEATER
SUPR
1M
44,45,46
(P8 AND LARGER)
SUPR
2 SOL
12LIQUID LINE
SOLENOID VALVE
(K3,K4 &K7 COMP. ONLY)
41
FIGURE 1 - ELEMENTARY DIAGRAM

JOHNSON CONTROLS 7
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
LD19486a
1
VMS
2
18
70
19
20
1
2
3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
J1-
1
24
25
26
27
28
29
30
33
34
35
36
37
2
2
80
81
50
4
5
6
7
8
9
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
12
13
9
1
82
11
95
38
701A 170
J35-5
J35-6
J35-4
J35-3
J36-5
71
1
31
32
J35-2
I /O
BOARD
031-01743-001
CONT'D.
VGD
REMOTE LCHLT SETPOINT
OFFSET (PWM SIGNAL)
REMOTE CURRENT LIMIT
SETPOINT (PWM SIGNAL)
REMOTE/LOCAL
CYCLING DEVICES
THRUST BEARING SWITCH
(OPEN ON FAULT)
CHILLED LIQUID
FLOW SWITCH
(OPTIONAL)
CONDENSER
LIQUID FLOW
SWITCH
(OPTIONAL)
MULTI-UNIT
SEQUENCE
CYCLING
OIL PUMP VSD
FAULT (OPEN ON
FAULT)
31
AUXILIARY
SAFETY
SHUTDOWN
REMOTE
RUN/STOP
AUTO LUBE LOW
LEVEL
(OPTIONAL)
(OPTIONAL)
CLOSED ONLY WHEN
VGD IS EXTENDED
TO
MICRO
BOARD
J19
1
1
1
1
1
1
1
7
035–25056–000
SHT. 1 OF 14
REV. I
ELEMENTARY DIAGRAM (CONT'D)
FIGURE 1 - ELEMENTARY DIAGRAM (CONT'D)

JOHNSON CONTROLS
8
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
ELEMENTARY DIAGRAM
LD29292
1
L
L
CLOSE ON
TEMP FALL
3
CLOSE
ON TEMP
RISE
58
2
3
4
5
6 AMP 250V
CKT BREAKER
6
7
8
9
25
22
23
1R-1
(K18)
1R-2
(K18)
TO LINE 41
20 AMP 250V
CKT BREAKER
1BR
164
K17
P34-14
17
P34-13
2BR
U N DISCONNECT SWITCH /
EMERGENCY STOP
(RED/YELLOW)
PE
2L
CONTROL SUPPLY 115VAC 50Hz
FROM 6FU ON SOLID STATE STARTER
(SEE SHEET 10)
34
2
59
2
J34-5
J34-6
J33-9
OPEN
FIELD
CLOSE
L2
X
L1
2
3
GROUNDED
CONDUCTOR
1
RED LT BLU
GRN/YEL
ELEMENTARY DIAGRAM
164
J34-15
159
J34-4
160
J34-3
158
J33-7 FIELD
OPEN
CLOSE
VGD MOTOR
(OPTION FOR COMPR.
W/ VGD ONLY)
158
160
159
4
6
2
3
158
MOV
MOV
7
PRV MOTOR
3
4
7
2
MOV MOV
6
PE
L2
X
L1
2
3
GRN/YEL
LT BLU
RED
14 J33-1
1GROUNDED
CONDUCTOR
3BR
6 AMP 250V
CKT BREAKER
J33-9
J34-6
J34-5 2
59
2
43
CONTROL SUPPLY 115VAC 50Hz
FROM 6FU ON SOLID STATE STARTER
(SEE SHEET 10)
L2
PE
(RED/YELLOW)
EMERGENCY STOP
DISCONNECT SWITCH /
NU
2BR
P34-13 17
P34-14
K17
1BR
20 AMP 250V
CKT BREAKER
164
TO LINE 41
1R-2
(K18)
1R-1
(K18)
23
22
25
9
8
7
6
6 AMP 250V
CKT BREAKER
5
4
3
2
58
CLOSE
ON TEMP
RISE
3
CLOSE ON
TEMP FALL
L
L
1
ELEMENTARY DIAGRAM
CE VERSION FOR
K7 COMPR. ONLY
PRV MOTOR
CW OPEN
CCW CLOSE
SOLENOID
BRAKE
SUPR
SUPR
L2
3
22
164
J34-15
J34-4
J34-3
J33-7
159
160
158
CCW CLOSE
CW OPEN
SOLENOID
BRAKE
SUPR
SUPR
L2
3
2
4
6
6
4
2
VGD MOTOR
PE
CE VERSION FOR ALL
COMPR. EXCEPT K7
FIGURE 2 - ELEMENTARY DIAGRAM

JOHNSON CONTROLS 9
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
LD29293
035–25056–000
SHT. 2 OF 14
REV. I
1
L
3
1FU
L
CLOSE ON
TEMP FALL
34
2
CLOSE
ON TEMP
RISE
59
58
1
2
3
4
5
GROUNDED
CONDUCTOR
5 AMP 250V
BUSS ABC 5
CONTROL SUPPLY
115VAC 50/60Hz
20 AMP OR 2.0KVA SOURCE
SEE NOTE 14
2
6
7
8
9
25
22
23
1R-1
(K18)
1R-2
(K18)
TO LINE 41
20 AMP 250V
LITTLEFUSE FLQ 20
2FU
164
K17
J34-5
J34-6
P34-14
J33-9
J34-15
17
P34-13
5 AMP 250V
BUSS ABC 5
J33-1
3FU 14
RED LT BLU
GRN/YEL
ELEMENTARY DIAGRAM
UL VERSION FOR
K7 COMPR. ONLY
2
3L2
SUPR
SUPR
SOLENOID
BRAKE
CCW CLOSE
CW OPEN
PRV MOTOR
164
2
3L2
SUPR
SUPR
SOLENOID
BRAKE
CW OPEN
CCW CLOSE
158
160
159
J33-7
J34-3
J34-4
6
4
2
4
6
VGD MOTOR
2
ELEMENTARY DIAGRAM (CONT'D)
FIGURE 2 - ELEMENTARY DIAGRAM (CONT'D)

JOHNSON CONTROLS
10
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
ELEMENTARY DIAGRAM
FIGURE 3 - ELEMENTARY DIAGRAM
LD19487a
24
2
DISPLAY
40
39
41
42
43
44
45
46
47
48
49
2
108
GND
TO
LCSSS
WATER
PUMP
MOTOR
50
52
51
1
TO
MICROBOARD
J5
J2-
50
TO
MICROBOARD
J6
2
TO TB1-24 ON LOGIC
BOARD IN LCSSS,
2TB IN LVVSD
OR
TO 1TB-24 IN MVSSS
OR MVVSD
ROW 3
ROW 4
ROW 2
ROW 1
COL 5
1
2
3
4
5
6
7
8
9
10
11
12
13
COL 6
TO MICRO
BOARD
KEYPAD
COL 7
COL 4
COL 0
STATIC SHIELD
J1-
COL 1
COL 2
COL 3
M1
M2
M3
1
103
102
101
TO LCSSS
OR
MVSSS
101, 102 & 103
OR
TO LVVSD
67, 68 & 69
OIL
PUMP
MOTOR
72
73
74
T1 T2 T3
OIL PUMP OUTPUT
FILTER BOARD
031-01739B
OL OL OL
3M
SUPR
151
CONDENSER LIQUID PUMP MOTOR STARTER
21
JOG LOCATION
SEE NOTE 10
TO I/O BOARD
LINE 19
J20-1
J20-2
J20-3
TO MICRO
BOARD
L1
L2
L3
VS OIL
PUMP DRIVE
+V EN
PWM
WHT RED BLK
MAX. ALLOWABLE
CURRENT DRAW
2 AMPS HOLDING
10 AMPS INRUSH
2
L1
L2
L3
2
1TO POWER SUPPLY
5FU
5AMP
125V
25
1SW
CN2
PE
PE
22 21
25
TO I/O BOARD
LINE 4
1M
1HTR
OIL
HEATER
P8 &
LARGER
104
105
106
L1A
L2A
L3A
SEE NOTE 15

JOHNSON CONTROLS 11
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
ELEMENTARY DIAGRAM (CONT'D)
FIGURE 3 - ELEMENTARY DIAGRAM (CONT'D)
LD19488a
035–25056–000
SHT. 3 OF 14
REV. I
UL VERSION
POWER SUPPLY WIRING
J30
305
306 306
TB7
302
307A
303A
319
311A
318
307A
317
302A
TB7
302314 4FU
2
5
6
303A
311A
309A
4
7
3
1
6
2
1A
314A
305A
306A
319
5
4
3
2
1
COM
J2
J1
GND
N
L
13
12
11
10
9
8
7
6
5
4
3
2
1
COM
COM
COM
+24V
-12V
+24V
+5V
+5V
+5V
+12V
FROM LINE 48
P30
2
5
6
MICROBOARD
031-03630
J1
11
306B
P3 J3
5
309A
318
317 2
COM
POWER SUPPLY
(SEE SHT. 7)
F2
F3
F1
F4
2
4
1
J3
3
8
J32
7
8
P32
7
+5V (VCC)
+24V
-12V
+12V
GND
308A
316A
308
316
1212 313
315 TB7 2
2
P3 J3
313C
13
16
LTC I/O
031-02895
J9
1
TB8
LTC I/O
031-02895
313B
2
P31
313
1
14
LTC I/O
031-02895
J9
15
316
310
TB7
308
TB7
308B
310
308
315A
2
J31
MICROBOARD
J9-12
313D
LCSSS
LOGIC BOARD
1
CE VERSION
POWER SUPPLY WIRING
J30
305
306 306
TB7
302
307A
303A
319
311A
318
307A
317
302A
TB7
314
2
5
6
303A
311A
309A
4
7
3
1
6
2
1A
314A
305A
306A
319
5
4
3
2
1
COM
J2
J1
GND
N
L
13
12
11
10
9
8
7
6
5
4
3
2
1
COM
COM
COM
+24V
-12V
+24V
+5V
+5V
+5V
+12V
FROM LINE 48
P30
2
5
6
MICROBOARD
031-03630
J1
11
306B
P3 J3
5
309A
318
317 2
COM
POWER SUPPLY
(SEE SHT. 8)
F2
F3
F1
F4
2
4
1
J3
3
8
J32
7
8
P32
7
+5V (VCC)
+24V
-12V
+12V
GND
308A
316A
308
316
1212 313
315 TB7 22
P3 J3
313C
13
16
LTC I/O
031-02895
J9
1
TB8
LTC I/O
031-02895
313B
2
P31
313
1
14
LTC I/O
031-02895
J9
15
316
310
TB7
308
TB7
308B
310
308
315A
2
J31
MICROBOARD
J9-12
313D
1
PE1
LCSSS
LOGIC BOARD
LCSSS
LOGIC BOARD
LCSSS
LOGIC BOARD

JOHNSON CONTROLS
12
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
MICROBOARD DIAGRAM (031-03630)
FIGURE 4 - MICROBOARD DIAGRAM
LD19489a
REMOTE CURRENT
LIMIT SETPOINT
REMOTE LCHLT
SETPOINT
22
21
9 20 8
19
7
18
6
17
5 16
4
13 1 2
14
3
15
1
12
2
MICROBOARD
031-03630
+5V +5V
GND
4-20 mA INPUT
0 TO 10V INPUT 0 TO 10V INPUT 0 TO 10V INPUT 0 TO 10V INPUT
GND SPARE
+5V SPARE
GND
+5V +5V
GND
4-20 mA INPUT 4-20 mA INPUT 4-20 mA INPUT
+5V
GND
12
+5V
INPUT
GND
23
24
NOT USED
2 4
WHT BLK 4
2
+5V
GND
INPUT
STALL
DETECTOR
BOARD
031-02418
WHT
PRV
POTENTIOMETER
2.5K
RED
BLK
10
INPUT 11
GND
J2-1
J2-4
J2-3
J1-3
J1-2
J1-1
LVD1G1N1
GND
+5V
LVD1G1N0
4
3
2 1
5 6
7
8
+5V
GND
LVD1G1N2
GND
+5V
12
11
10
9
LVD1G1N3
+5V
GND
J2-2
RED
WHT
BLK
GRN
ATTENTION:
IF FLOW SWITCHES ARE CONNECTED TO J14, MICROBOARD
JUMPERS JP10, JP11 AND JP12 MUST BE ON PINS 2 & 3.
4
16
15
INPUT
GND
+12V
2 4
BLK WHT
BLK WHT
NOT USED NOT USED
USED ON COMPR.
WITH VGD ONLY
USED ON COMPR.
WITH VGD, VSD
(OPTIONAL)
HGBP
ACTUATOR
MOV
3
WHT
OR HGBP
KEY IN
KEY OUT
1GND
13
12
11
10
9
8
7
6
5
4
3
2
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
9
8
7
6
5
4
50
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
3
2
1
TO
KEYPAD
1
2
3
4
4
5
1
2
3
BAS
POWER
(OPTION)
CURV
LWT I
GND
+12VF
GND
SHFCLK
LP (HSYNC)
FLM (VSYNC)
GND
RO
R1
R2
R3
R4
R5
GND
G0
G1
G2
G3
G4
G5
GND
B0
B1
B2
B3
B4
B5
GND
DISP EN
SW_VDD
SW_VDD
SW VDD
GND
GND
GND
GND
GND
GND
PID1
GND
PID0
GND
NO CONNECT
NO CONNECT
ROW 4
ROW 3
ROW 2
ROW 1
COL 7
COL 6
COL 5
COL 4
COL 3
COL 2
COL 1
COL 0
CUR I
LWTV
GND
+5VDC
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
BRIGHTNESS CONTROL -
BRIGHTNESS CONTROL WIPER
BRIGHTNESS CONTROL +
EN BKLT
GND
GND
+V
+V
1
2
3
10
4
5
6
7
8
9
TO
DISPLAY
BACKLIGHT
1
2
3
4-20mA
RET
0-10V
1
2
3
WHT
4-20mA
RET
0-10V
1
2
3
WHT
4-20mA
RET
0-10V
TO
DISPLAY
+-
1
3
+-
1
3
CFS
CONDENSER
FLOW SWITCH
EFS
CHILLED
LIQUID
FLOW SWITCH
3
1
-+
26 27
RED
WHT
BLK
SD
DISCHARGE
PRESSURE
TRANSDUCER
(0.5-4.5V)
24
22
REMOTE
INTERFACE
CURRENT &
TEMP
BLK
1
TO TB6-5
TO TB6-162 RED
2
GND
(OPTIONAL)
HEAT RECOVERY OR
HEAD PRESSURE
CONTROL
OUTPUT
0-10V
4-20 mA
LIQUID
HEATING
CONDENSER
FLOW SWITCH
(OPTIONAL)
LIQUID
J7- J8-
J18-
J6-
J5-
J21-
J22-
J14-
TB8-
TB6-
TB7-
TO TB6-162
TO TB6-5
23
MOV
(WHT)
2
(RED)
1
3
(BLK)2
1
3
(RED)1
3(WHT)
(BLK)2
ORIFICE VALVE
ACTUATOR #1
ORIFICE VALVE
ACTUATOR #2
J-3
J-3
J-2
J-2
J-1
J-1
K1-K4
K4 ONLY

JOHNSON CONTROLS 13
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
LD19489a
REMOTE CURRENT
LIMIT SETPOINT
REMOTE LCHLT
SETPOINT
22
21
9 20 8
19
7
18
6
17
5 16
4 13 1 2
14
3
15
1
12
2
MICROBOARD
031-03630
+5V +5V
GND
4-20 mA INPUT
0 TO 10V INPUT 0 TO 10V INPUT 0 TO 10V INPUT 0 TO 10V INPUT
GND SPARE
+5V SPARE
GND
+5V +5V
GND
4-20 mA INPUT 4-20 mA INPUT 4-20 mA INPUT
+5V
GND
12
+5V
INPUT
GND
23
24
NOT USED
2 4
WHT BLK 4
2
+5V
GND
INPUT
STALL
DETECTOR
BOARD
031-02418
WHT
PRV
POTENTIOMETER
2.5K
RED
BLK
10
INPUT 11
GND
J2-1
J2-4
J2-3
J1-3
J1-2
J1-1
LVD1G1N1
GND
+5V
LVD1G1N0
4
3
2 1 5 6
7
8
+5V
GND
LVD1G1N2
GND
+5V
12
11
10
9
LVD1G1N3
+5V
GND
J2-2
RED
WHT
BLK
GRN
ATTENTION:
IF FLOW SWITCHES ARE CONNECTED TO J14, MICROBOARD
JUMPERS JP10, JP11 AND JP12 MUST BE ON PINS 2 & 3.
4
16
15
INPUT
GND
+12V
2 4
BLK WHT
BLK WHT
NOT USED NOT USED
USED ON COMPR.
WITH VGD ONLY
USED ON COMPR.
WITH VGD, VSD
(OPTIONAL)
HGBP
ACTUATOR
MOV
3
WHT
OR HGBP
KEY IN
KEY OUT
1GND
13
12
11
10
9
8
7
6
5
4
3
2
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
9
8
7
6
5
4
50
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
3
2
1
TO
KEYPAD
1
2
3
4
4
5
1
2
3
BAS
POWER
(OPTION)
CURV
LWT I
GND
+12VF
GND
SHFCLK
LP (HSYNC)
FLM (VSYNC)
GND
RO
R1
R2
R3
R4
R5
GND
G0
G1
G2
G3
G4
G5
GND
B0
B1
B2
B3
B4
B5
GND
DISP EN
SW_VDD
SW_VDD
SW VDD
GND
GND
GND
GND
GND
GND
PID1
GND
PID0
GND
NO CONNECT
NO CONNECT
ROW 4
ROW 3
ROW 2
ROW 1
COL 7
COL 6
COL 5
COL 4
COL 3
COL 2
COL 1
COL 0
CUR I
LWTV
GND
+5VDC
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
BRIGHTNESS CONTROL -
BRIGHTNESS CONTROL WIPER
BRIGHTNESS CONTROL +
EN BKLT
GND
GND
+V
+V
1
2
3
10
4
5
6
7
8
9
TO
DISPLAY
BACKLIGHT
1
2
3
4-20mA
RET
0-10V
1
2
3
WHT
4-20mA
RET
0-10V
1
2
3
WHT
4-20mA
RET
0-10V
TO
DISPLAY
+-
1
3
+-
1
3
CFS
CONDENSER
FLOW SWITCH
EFS
CHILLED
LIQUID
FLOW SWITCH
3
1
-+
26 27
RED
WHT
BLK
SD
DISCHARGE
PRESSURE
TRANSDUCER
(0.5-4.5V)
24
22
REMOTE
INTERFACE
CURRENT &
TEMP
BLK
1
TO TB6-5
TO TB6-162 RED
2
GND
(OPTIONAL)
HEAT RECOVERY OR
HEAD PRESSURE
CONTROL
OUTPUT
0-10V
4-20 mA
LIQUID
HEATING
CONDENSER
FLOW SWITCH
(OPTIONAL)
LIQUID
J7- J8-
J18-
J6-
J5-
J21-
J22-
J14-
TB8-
TB6-
TB7-
TO TB6-162
TO TB6-5
23
MOV
(WHT)
2
(RED)
1
3
(BLK)2
1
3
(RED)1
3(WHT)
(BLK)2
ORIFICE VALVE
ACTUATOR #1
ORIFICE VALVE
ACTUATOR #2
J-3
J-3
J-2
J-2
J-1
J-1
K1-K4
K4 ONLY
MICROBOARD DIAGRAM (031-03630)
FIGURE 4 - MICROBOARD DIAGRAM (CONT'D)
LD19490a
035–25056–000
SHT. 4 OF 14
REV. I
TO
I/O
BD.
J1
20
10
8
12
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
303A
317
318
307A
GND
EVAP. PRESS. FEEDTHROUGH
COND. PRESS. FEEDTHROUGH
DC UNDERVOLTAGE INPUT
1
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
1
2
3
4
-12V
+12V
+5V
+5V
+24VF
+12VF
SHIELD
+-
-12V
GND
+12V
GND
+12V
SHLD
GTX
GRX
DTR1
TXD1
RXD1
DSR1
GND
GND
PRINTER
& BAS
3
2RED
BLK
+V
EN
+12V EN SIG
VS OIL
PUMP DRIVE
WHT 1
PWM PWM SIG
+24 VDC
TO J31-2
NOT USED
313C
5
4
3
2
+
GND
SHLD
309A
1
311A
+24V 7319
315A
6
1
7
+24V
COM3
EXP I/O
SHIELD
RED
BLK
+
-
RED
BLK
-
+12V
MC2/MBC
1
COM 5A
TO J9 ON
LTC I/O BD.
GND
-12VF
308A
316A
TO J2-9 ON POWER SUPPLY
TO J2-11 ON POWER SUPPLY
TO J2-12 ON POWER SUPPLY
TO J2-1 ON POWER SUPPLY
TO J2-13 ON POWER SUPPLY
TO J2-7 ON POWER SUPPLY
TO J2-3 ON POWER SUPPLY
COM
TO P30-12
TO J32-7
TO J32-8
BLK
RED
WHT
14
3
13
6 7
17 RED
WHT BLK 2
1
3
3
1
2
BLK WHT
RED
HOP
OIL PUMP
PRESSURE
TRANSDUCER
(0.5-4.5V)
EP
EVAPORATOR
PRESSURE
TRANSDUCER
(0.5-4.5V)
19
9
18
INPUT
GND
+12V
GND
INPUT
+5V +5V
INPUT
GND
15 14 11
3
1
2
BLK WHT
RED
3
1
2
BLK WHT
RED
CP
CONDENSER
PRESSURE
TRANSDUCER
(0.5-4.5V)
LOP
OIL SUMP
PRESSURE
TRANSDUCER
(0.5-4.5V)
11 22
21
11 2 1
+5V
INPUT
GND
+5V
INPUT
GND 12
10
BLK RED 1
2RT3
OIL TEMP.
THERMISTOR
2
1
RED
BLK
2
1
RED BLK
2
1
2
1
RED BLK
RT2
DISCHARGE TEMP.
THERMISTOR
RT6
DROP LEG
REFRIG. TEMP.
THERMISTOR
RT4
LEAVING COND.
LIQUID TEMP.
THERMISTOR
14
4
15 5 16
6
17
7
18
8
BLK
RED 1
2
BLK
RED 1
2
RT1
LEAVING CHILLED
LIQUID TEMP.
THERMISTOR
19 9
20 10
INPUT
+5V +5V
INPUT
+5V
INPUT
+5V
INPUT
+5V
INPUT INPUT
+5V
INPUT
+5V
3
13
INPUT
+5V
3 2 5
RED BLK
6 4 9 1
REFRIGERANT
LEVEL
SENSOR
(LLS)
CONDENSER
RT5
ENTERING COND.
LIQUID TEMP.
THERMISTOR
RT9
ENTERING CHILLED
LIQUID TEMP.
THERMISTOR
GND LUG
(OPTION TO SC-EQ)
COM
SPARE
TO MOTOR CONTROLLER
(SSS OR VSD)
J9-
J10-
J1-
J12-
J13-
J2-
J15-
TB2
TB10
J29-
J30-
J20-
J19-
J13
J12-
J24-
J25-
J2
TB2
POWER IN
J3-
BLK
RED1
2
7
RT7
EVAPORATOR
REFRIG.TEMP.
THERMISTOR
USED ON Q COMPR. ONLY
HIGH PRESSURE CUTOUT SWITCH MOTOR CONTROLLER FAULT CONTROL VOLAGE SAFETY STOP SWITCH SPARE OIL PUMP VSD FAULT VANE MOTOR SWITCH VGD EXTENDED SWITCH THRUST BREAING PROX SWITCH REMOTE RUN/STOP SPARE REMOTE COOLING SETPOINT REMOTE CURRENT LIMIT SETPOINT CHILLED LIQUID FLOW SWITCH SYSTEM CYCLING SHUTDOWN MULTI UNIT SEQUENCE CYCLING SPARE AUX. SAFETY SHUTDOWN CONDENSER LIQUID FLOW SWITCH AUTO LUBE LOW LEVEL INDICATOR +5V GND GND GND GND +12V +12V LEVEL CONTROL VALVE CLOSE LEVEL CONTROL VALVE OPEN VGD CLOSE (EXTEND) VGD OPEN (EXTRACT) PRV CLOSE PRV OPEN HIGH SPEED THRUST SOLENOID VALVE OIL HEATER MOTOR STARTER STOP MOTOR STARTER START OIL RETURN SOLENOID VALVE SPARE
OIL SUMP CONDENSER REFRIGERANT PUMP (HIGH TEMP HP)
SPARE RELAY SPARE RELAY SPARE RELAY AUTO LUBE RUN CONDENSER LIQUID PUMP RUN CYCLING SHUTDOWN ALARM SAFETY SHUTDOWN ALARM REMOTE MODE READY TO START WARNING ALARM CHILLED LIQUID PUMP RUN

JOHNSON CONTROLS
14
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
DISPLAY INTERFACE BOARD
FIGURE 5 - DISPLAY INTERFACE BOARD
LD19491a
035–25056–000
SHT. 5 OF 14
REV. I
DOORDISPLAY KIT
CN2
COLOR DISPLAY
10.4 INCH
ACTIVE MATRIX
WITH LED BACKLIGHT
TO
MICROBOARD
J5
031-02887
INSIDE VIEW OF FRONT DOOR
DISPLAY INTERFACE
BOARD P/N 031-02887-000
DISPLAY CABLE
BACKLIGHT CABLE
TO MICROBOARD J6
1SW
SAFETY STOP
SAFETY
STOP
25A
21 21
22
11
12
28
1E
TB6
REAR VIEW DISPLAY KIT YORK P/N
331-01771-000 REV H AND LATER
(MOUNTING PLATE NOT SHOWN)

JOHNSON CONTROLS 15
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
PRESSURE TEMPERATURE CHART
TABLE 1 - PRESSURE TEMPERATURE CHART
Application
Device Units
Operating Point
Chilled
Water Brine On Rise On Fall
  HDT Deg.F/Deg.C 220/104.4 219/103.9
  HOT Deg.F/Deg.C 180/82.2 179/81.7
  OP psid/kPa 25/172 15/104
  HP (R-134a) psig/kPa For further information, refer to the Operations Manual
LEP (R-134a) psig/kPa Cut-Out
180/1241
Inhibit PRV
Opening *
162.5/1120
Allow PRV
Opening *
160/1103
Cut-In
120/827
1LEP psig Cut-In
25.1/173
Allow PRV
Opening
28.0/193
Inhibit PRV
Opening
27.0/186
Cut-Out
25.0/172
  HOP psid/kPa
  FDTS Deg.F/Deg.C 90/620.6 <90/620.6
LWT Deg.F/Deg.C 30.0/-1.10 29.9/-1.20
LWT Deg.F/Deg.C Programmable according to the Operations Manual,
Form 160.54-O1
  LOT Deg.F/Deg.C 71.0/21.7 55.0/12.8
  LOTD† Deg.F/Deg.C 30/16.7 29.9/16.6
  LOTD†† Deg.F/Deg.C 40/22.2 39.9/22.1
* - Function provided by condenser transducer default valves shown on table, actual values as programmed.
† - Applicable if unit was shut down for 30 min or less
†† - Applicable if unit was shut down for greater than 30 mins.
TABLE 2 - LOW/HIGH VOLTAGE TRIP/RESET VALUES
SSS TYPE
COMPRESSOR
MOTOR SUPPLY
VOLTAGE RANGE
- (V)
LOW LINE VOLTAGE
OPERATING POINT
HIGH LINE VOLTAGE
OPERATING POINT
CUTOUT - (V)
(ON FALL)
CUTIN - (V)
(ON RISE)
CUTOUT - (V)
(ON RISE)
CUTIN - (V)
(ON FALL)
LCSSS 200–208 160 174 227 226
LCSSS 220–240 185 200 262 261
LCSSS 380 305 331 415 414
LCSSS 400 320 349 436 435
LCSSS 415 335 362 454 453
LCSSS 440–480 370 400 524 523
LCSSS 550–600 460 502 655 654
LCSSS Supply Voltage
Range Disabled None 0 None 0

JOHNSON CONTROLS
16
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
LTC I/O BOARD (031-02895)
FIGURE 6 - LTC I/O BOARD (031-02895)
LD19492a
TB1
305(GND)
RED
J12-5
TB2 TB3 TB4 TB5 TB6 TB7
TB16
1
TB17
1
TB18
1
TB19
1
TB20
1
J12-4 BLK
308B(+12V)
1
AO1
AO2 AO3 AO4 AO5 AO6 AO7
111111
VO
RET
VO
IO
DI1+
DI1-
1
J9
TB21
16
9
8
1
TO TB6
120VAC
12
310(-12V)
302A(+5V)
031-02895
(OPTIONAL)
LTC I/O BOARD
(OPTIONAL)
HEATING CONDENSER
WATER FLOW SWITCH

JOHNSON CONTROLS 17
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
LD19492a
TB1
305(GND)
RED
J12-5
TB2 TB3 TB4 TB5 TB6 TB7
TB16
1
TB17
1
TB18
1
TB19
1
TB20
1
J12-4 BLK
308B(+12V)
1
AO1
AO2 AO3 AO4 AO5 AO6 AO7
111111
VO
RET
VO
IO
DI1+
DI1-
1
J9
TB21
16
9
8
1
TO TB6
120VAC
12
310(-12V)
302A(+5V)
031-02895
(OPTIONAL)
LTC I/O BOARD
(OPTIONAL)
HEATING CONDENSER
WATER FLOW SWITCH
LTC I/O BOARD (031-02895) (CONT'D)
FIGURE 6 - LTC I/O BOARD (031-02895) (CONT'D)
LD19493a
035–25056–000
SHT. 6 OF 14
REV. I
28
TB8
J11
TB12 TB13 TB14 TB15 24VDC 313B
+5V
AI 1
AI 2BLK
RED BLK
29
12 12
GND
0-10V OR 4-20 mA
+5V RED
1
POWER
IN
24V
ANALOG INPUTS 1-8
1
1324
12
GND
A18
GND
A17
1
ANALOG INPUTS 9-16
12
24
1
13
1
1
J10
1111
TB9
TB10
TB11
(OPTIONAL)
ENTERING HEATING
CONDENSER LIQUID
TEMP RT10
(OPTIONAL)
LEAVING HEATING
CONDENSER
LIQUID TEMP RT11
(OPTIONAL)
REMOTE HOT WATER
SETPOINT OFFSET

JOHNSON CONTROLS
18
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
CONNECTION DIAGRAM
(UL APPLICATIONS ONLY)
FIGURE 7 - CONNECTION DIAGRAM (UL)
LD19494a
1 82 56
32
1195 1 31 9 113121 20 19 1871
J2
13028717018802 81 161163162158160159 58 59
1TB3 J1
1
TB4
1 26554544 27 42 43
49
50
15A
1C
1G
28 70
18 2C 161
163
162 58 59
16
2
16A
1234
5678
1234
5
678
J32P32
316
308
316A
308A
71
80 81 158
160
159
J2
1J1
1
34
2
22
J20
SHLD
GND
J10
J6
J5
J18
+
-
SHLD
GND
+
-
1
J7
J8
1
J9
J19
1
1
1
1
12
24 13
49
50
2
22
11
12
11
10
20 11
J22
1
JP24
1
JP23
1 1
JP22 JP21
1
6
7
12
J14
1111
JP11JP9JP10JP12
1
JP25
1
J1
F2
F1
F3
F4
1
J3
7
4
-12V
+12V
+24V 1
+12V
1
6
1
-
+
GND
SHLD
+12V
J15
J24
J25
J29
J30
111
V+ IN1 IN2 IN3 IN5+ IN5- +5V
- +
GND
TB1
1
TB3 J23
1
1
1 1
TB6TB5
TB7TB8
J21
1
24
3
12
49 50
12
910 JP7 JP8
1
JP5 1
1
1
SMARC MODULE
SW1
1ON
303A317
307A318
309A311A
319
315A 308A
316A
SHIELD
BLK
BLK
RED
GND IN6+ IN6- OUT
JP4
JP2
JP3
RED
GND
GTX
GND
GRX
DTR1
TXD1
RXD1
DSR1
TB1
1
12 11 14 19
19
74 5623
15
16
24
BLK
WHT
GRN
RED
30 2627
TO J7-24
TO J7-23
WHT
23
WHT
TB10
1
USED ON COMPR.
WITH VGD ONLY
USED ON COMPR. WITH
VSD, VGD OR HGBP
STALL DETECTOR
DETECTOR
031-02418
(OPTIONAL)
MICROBOARD
031-03630
TO
DISPLAY
TO
DISPLAY
TO
KEYPAD
I/0 BOARD
031-01743
J2 PRINTER
& BAS
J12
COM3
J13
MC1
TB2
MC2/MBC
TB4
VGD
SD CARD
SLOT J26
J33
USB
(OPTION)
TO
SC-EQ
BOARD
TO J9
ON LTC
I/O BD.
LEFT SIDE WALL
GND
+12V
BLK
RED
J1
SC-EQ
(OPTIONAL)
SC-AP
MODULE
(OPTIONAL)
SHLD
COM
RX
TX
1
24
3
J7
J8
J12
J9
(OPTION)
TO
MICROBD.
J2
1G
TO HEATING CONDENSER WATER FLOW SWITCH,
TB20-1,2 LTC I/O
TO HEATING RECOVERY OR HEAD PRESSURE CONTROL VALVE
TB7-1, TB7-2 MICROBOARD KEYPAD
TO HOT WATER SET POINT OFFSET TB9-3, 4 LTC I/O
TO REMOTE LCHLT SET POINT OFFSET (PWM SIGNAL)1,19
(SEE NOTES 2,7)
TO CHILLED LIQUID PUMP RUN CONTACTS 44,45
(SEE NOTES 2,12,15)
TO REMOTE MODE READY TO START CONTACTS 26,27
(SEE NOTES 2,12,15)
TO RUN CONTACTS 35,36 (SEE NOTE 8)
TO CONDENSER PUMP MOTOR STARTER 150,151
(SEE NOTES 14,15)
TO CHILLED LIQUID FLOW SWITCH 1,12 (SEE NOTES 2,7)
TO SAFETY SHUTDOWN ALARM CONTACTS 42,43
(SEE NOTES 2,12,15)
TO AUXILIARY SAFETY SHUTDOWN 1,31 (SEE NOTES 2,7)
TO REMOTE START/STOP CONTACTS 1,7 (SEE NOTES 2,6,7)
TO REMOTE/LOCAL CYCLING CONTACTS 1,13 (SEE NOTES 2,5,7)
TO MULTI-UNIT SEQUANCE CYCLING 1,9 (SEE NOTES 2,7)
TO CONDENSER LIQUID FLOW SWITCH 1,11 (SEE NOTES 2,7)
TO WARNING ALARM 55,56 (SEE NOTES 2,12,15)
TO CYCLING SHUTDOWN ALARM CONTACTS 40,41
(SEE NOTES 2,12,15)
TO COMPR. MTR, STARTER W/CONTROL SUPPLY 1,3,4,15,24,53,
XFMR, 115V, 50/60 Hz (SEE NOTES 14) L,2 (GROUNDED CONDUCTOR
)
LCSSS &
LVVSD ONLY
BLK
GRN WHT
MVSSS OR MVVSD ONLY
UMMVSSS (BLK,WHT,GRN WIRES ONLY)
RED
TO REMOTE CURRENT LIMIT SET POINT (PWM SIGNAL)1,20
(SEE NOTES 2,7)
10
USED ON Q COMPR. ONLY

JOHNSON CONTROLS 19
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
CONNECTION DIAGRAM (CONT'D)
(UL APPLICATIONS ONLY)
FIGURE 7 - CONNECTION DIAGRAM (UL) (CONT'D)
LD19495a
035–25056–000
SHT. 7 OF 14
REV. I
34
GND
(OPTIONAL)
LTC I/O
BOARD
031-02895
23 62
151
2 133 616
RIGHT SIDE WALL
17
TB5
TB2
25
22
23
12
64164165
TB1
129
40 41 150 152153 154155156157164 36 35
16
1T
G
L
2
RED
LT BLU
GRN/YEL
32C2B34616 6611C1B
22
2
2D
2B
TB6
LLL
LA
L
1
1
53
3
3
4
4
15 16 21
24
24 25
25
53 2
5
2D1F
1
2
3
4
5
6
7
8
9
10
11
12
13
L
N
GND
J1
J2
COM
COM
COM
+5V
+5V
+5V
+12V
-12V
+24V
+24V
1A
2
POWER
SUPPLY
309A
311A
319
307A
306A
305A
303A
314A
COM
1E
1
2
3
4
5
11
78
9 10
12
1211 12
34
5
678
306A
305A
315A
314A
P30
306
305
315
314
J30
123 4
56
120
VAC
24
VAC
162
1F
5
910
WIRE ENTRY VIEW
25
J10
1
(HGBP OPTION)
J31 P31
1
2
22
BLK
4FU
314 302
(OPTIONAL)
313
62 29 64 17
165
164
23
2E
162
162A
162A
RED GRN
317
13
24
RED
BLK
RED
BLK
29
28
28 29
TB1
TB2
TB20
1
1
1
TB8
1313B
1J9
16
9
8
RED (J12) BLK (J12) 305 310 308B 302A
1
TB9
302
306
308
310
313
302
306
308
316
315
302A
306B
308B
310
TB7
313,313C
318 COM
313D
1
LA
A
VSOP CABLE
22
22
L
1 SW
25A
21 21
22
11
12
28
1E
TB6
1
RED
RED
22
RED
23
BLK
SAFETY
STOP
SEE
NOTE 12
NOTE: TERMINAL BLOCK "25"
CONTAINS FUSE 5FU, 5A
K18
(1R RELAY)
1FU
5A
2FU
20A
(SUPPLIED WITH
POWER SUPPLY)
(TO J9-12 ON
MICROBD.)
FLOW SWITCH
WIRES
SHIELD
(J12)
FOR TB7:
USE CLASS 1 CONDUCTORS
USE COPPER CONDUCTORS ONLY
SEE NOTE 14
1
2
TO
56481
18
J35
64
58
13
10
7
4
1
1D
7
4
1
J34
J33
*159
1514
12
11
89 61
160
23
65
4
158
15
98
56
32
59*
2E
80
B
2 31
15
15A
16B
16A
(1SW)
21
25A
(1SW)
1D
1B
1A
12A
2
5
5A
3FU
5A
14 USED ON K7
COMPR. ONLY
LCSSS
TB2
PIN
5
4
COMMON
FUNCTION
1
2
BLK
RED
SHIELDED
CABLE
WIRE COLOR
J3
CONNECTOR
PIN
TABLE 1
+24 VDC
70
LB
LB
(TO TB1)
(TO TB3)
* THESE PINS ARE CONNECTED TO CIRCUIT 14 ON SYSTEM WIRING SIDE FOR K7 COMPR. ONLY.
306B
J3
313B,313C BLK
RED
1
2
P3
C
SEE
TABLE 1
LCSSS
ONLY
1
2
WIRING FOR "H" & "K" COMPR. WITH
WIREWAY ONLY.SEE SHEETS 10, 11 & 12
FOR "P" & "Q" COMPR. AND "H" & "K"
COMPR. WITHOUT WIREWAY
TO CONTACTOR CONTROL VOLTAGE
SUPPLIED BY OTHER

JOHNSON CONTROLS
20
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
CONNECTION DIAGRAM
(CE APPLICATIONS ONLY)
FIGURE 8 - CONNECTION DIAGRAM (CE)
LD29294
182 56
32
1195 1319 113121 20 19 1 8 7 1
J2
1302871 70 18 80 281 161163162158160159 58 59
1TB3 J1
1
TB4
1 26554544 27 42 43
49
50
15A
1C
1G
28 70
18 2C 161
163
162 58 59
16
2
16A
1 2 3 4
5678
1234
5
678
J32P32
316
308
316A
308A
71
80 81 158
160
159
J2
1J1
1
34
2
22
J20
SHLD
GND
J10
J6
J5
J18
+
-
SHLD
GND
+
-
1
J7
J8
1
J9
J19
1
1
1
1
12
24 13
49
50
2
22
11
12
11
10
20 11
J22
1
JP24
1
JP23
1 1
JP22 JP21
1
6
7
12
J14
1111
JP11JP9JP10JP12
1
JP25
1
J1
F2
F1
F3
F4
1
J3
7
4
-12V
+12V
+24V 1
+12V
1
6
1
-
+
GND
SHLD
+12V
J15
J24
J25
J29
J30
111
V+ IN1 IN2 IN3 IN5+ IN5- +5V
- +
GND
TB1
1
TB3 J23
1
1
1 1
TB6TB5
TB7TB8
J21
1
24
3
12
49 50
12
910 JP7 JP8
1
JP5 1
1
1
SMARC MODULE
SW1
1ON
303A317
307A318
309A311A
319
315A 308A
316A
SHIELD
BLK
BLK
RED
GND IN6+ IN6- OUT
JP4
JP2
JP3
RED
GND
GTX
GND
GRX
DTR1
TXD1
RXD1
DSR1
TB1
1
12 11 14 1 9
19
7
45623
15
16
24
BLK
WHT
GRN
RED
30 2627
TO J7-24
TO J7-23
WHT
23
WHT
TB10
1
USED ON COMPR.
WITH VGD ONLY
USED ON COMPR. WITH
VSD, VGD OR HGBP
STALL DETECTOR
DETECTOR
031-02418
(OPTIONAL)
MICROBOARD
031-03630
TO
DISPLAY
TO
DISPLAY
TO
KEYPAD
I/0 BOARD
031-01743
J2 PRINTER
& BAS
J12
COM3
J13
MC1
TB2
MC2/MBC
TB4
VGD
SD CARD
SLOT J26
J33
USB
(OPTION)
TO
SC-EQ
BOARD
TO J9
ON LTC
I/O BD.
LEFT SIDE WALL
1G
LCSSS &
LVVSD ONLY
BLK
GRN WHT
MVSSS OR MVVSD ONLY
UMMVSSS (BLK,WHT,GRN WIRES ONLY)
TO HEATING CONDENSER WATER FLOW SWITCH,
TB20-1,2 LTC I/O
TO HEATING RECOVERY OR HEAD PRESSURE CONTROL VALVE
TB7-1, TB7-2 MICROBOARD KEYPAD
TO HOT WATER SET POINT OFFSET TB9-3, 4 LTC I/O
TO REMOTE LCHLT SET POINT OFFSET (PWM SIGNAL)1,1
9
(SEE NOTES 2,7)
TO CHILLED LIQUID PUMP RUN CONTACTS 44,45
(SEE NOTES 2,12,15)
TO REMOTE MODE READY TO START CONTACTS 26,27
(SEE NOTES 2,12,15)
TO RUN CONTACTS 35,36 (SEE NOTE 8)
TO CONDENSER PUMP MOTOR STARTER 150,151
(SEE NOTES 14,15)
TO CHILLED LIQUID FLOW SWITCH 1,12 (SEE NOTES 2,7)
TO SAFETY SHUTDOWN ALARM CONTACTS 42,43
(SEE NOTES 2,12,15)
TO AUXILIARY SAFETY SHUTDOWN 1,31 (SEE NOTES 2,7)
TO REMOTE START/STOP CONTACTS 1,7 (SEE NOTES 2,6,7)
TO REMOTE/LOCAL CYCLING CONTACTS 1,13 (SEE NOTES 2,5,7)
TO MULTI-UNIT SEQUANCE CYCLING 1,9 (SEE NOTES 2,7)
TO CONDENSER LIQUID FLOW SWITCH 1,11 (SEE NOTES 2,7)
TO WARNING ALARM 55,56 (SEE NOTES 2,12,15)
TO CYCLING SHUTDOWN ALARM CONTACTS 40,41
(SEE NOTES 2,12,15)
TO COMPR. MTR, STARTER W/CONTROL SUPPLY 1,3,4,15,24,53,
XFMR, 115V, 50/60 Hz (SEE NOTES 14) L,2 (GROUNDED CONDUCTOR
)
RED
TO REMOTE CURRENT LIMIT SET POINT (PWM SIGNAL)1,2
0
(SEE NOTES 2,7)
GND
+12V
BLK
RED
J1
SC-EQ
(OPTIONAL)
SC-AP
MODULE
(OPTIONAL)
SHLD
COM
RX
TX
1
24
3
J7
J8
J12
J9
(OPTION)
TO
MICROBD.
J2
10
USED ON Q COMPR. ONLY
LD29295
035–25056–000
SHT. 8 OF 14
REV. I
34
(OPTIONAL)
LTC I/O
BOARD
031-02895
2362
151
2133 616
RIGHT SIDE WALL
17
TB5
TB2
25
22
23
12
64164165
TB1
129
40 41 150 152153 154155156157164 36 35
16
1T
G
L
2
RED
LT BLU
GRN/YEL
32C2B 34 616 6 61 1C 1B
22
2
2D
2B
TB6
LLL
LA
L
1
1
53
3
3
4
4
15 16 21
24
24 25
25
53 2
5
2D1F
1
2
3
4
5
6
7
8
9
10
11
12
13
L
N
GND
J1
J2
COM
COM
COM
+5V
+5V
+5V
+12V
-12V
+24V
+24V
1A
2
POWER
SUPPLY
309A
311A
319
307A
306A
305A
303A
314A
COM
1E
1
2
3
4
5
11
78
910
12
1211 12
34
5
678
306A
305A
315A
314A
P30
306
305
315
314
J30
1234
56
120
VAC
24
VAC
162
1F
5
910
WIRE ENTRY VIEW
25
J10
1
(HGBP OPTION)
J31 P31
1
2
22
BLK
(OPTIONAL)
313
62 29 64 17
165
164
23
2E
162
162A
162A
RED GRN
317
13
24
RED
BLK
RED
BLK
29
28
28 29
TB1
TB2
TB20
1
1
1
TB8
1313B
1J9
16
9
8
RED (J12) BLK (J12) 305 310 308B 302A
1
TB9
302
306
308
310
313
314
306
308
316
315
302A
306B
308B
310
TB7
313,313C
318 COM
313D
A
22 1 SW
25A
21 21
22
11
12
28
1E
TB6
1
RED
RED
22
RED
23
BLK
SAFETY
STOP
SEE
NOTE 12
NOTE: TERMINAL BLOCK "25"
CONTAINS FUSE 5FU, 5A
K18
(1R RELAY)
(SUPPLIED WITH
POWER SUPPLY)
(TO J9-12 ON
MICROBD.)
FLOW SWITCH
WIRES
SHIELD
(J12)
FOR TB7:
USE CLASS 1 CONDUCTORS
USE COPPER CONDUCTORS ONLY
SEE NOTE 14
1
2
TO
56481
18
J35
64
58
13
10
7
4
1
1D
7
4
1
J34
J33
*159
1514
12
11
89 61
160
2 3
65
4
158
15
98
5 6
32
59*
2E
80
B
2 31
15
15A
16B
16A
(1SW)
21
25A
(1SW)
1D
1B
1A
12A
2
5
5A
2BR
(6A)
(20A)
122
LB LA
1BR
PE
PE1
PE
PE
3BR
(6A)
14
LC
LCSSS
TB2
PIN
5
4
COMMON
FUNCTION
1
2
BLK
RED
SHIELDED
CABLE
WIRE COLOR
J3
CONNECTOR
PIN
TABLE 1
+24 VDC
70
(TO TB1)
(TO TB3)
* THESE PINS ARE CONNECTED TO CIRCUIT 14 ON SYSTEM WIRING SIDE FOR K7 COMPR. ONLY.
GND
USED ON K7 ONLY
LB
VSOP CABLE
306B
J3
313B,313C BLK
RED
1
2
P3
C
SEE
TABLE 1
LCSSS
ONLY
1
2
WIRING FOR "H" & "K" COMPR. WITH
WIREWAY ONLY.SEE SHEETS 10, 11 & 12
FOR "P" & "Q" COMPR. AND "H" AND "K"
COMPR. WITHOUT WIREWAY
TO CONTACTOR CONTROL VOLTAGE
SUPPLIED BY OTHER