Johnson Controls YZ Product information

Unit Wiring and Field Connections for YZ

Centrifugal Chiller with Magnetic Bearing

Controller

Wiring diagram

Contractor

Order number

JCI contract number

JCI order number

Purchaser

Job name

Location

Engineer

Reference Date:

Approval Date:

Construction Date:

Job data

Chiller model number YZ

Number of units

System

Motor

Variable speed drive (VSD)

Evaporator

Condenser

Stage end

Form Number: 161.01-PW4 (220) Supersedes: 161.01-PW4 (1119)

Issue Date: 2020-02-28

General safety guidelines

Important: Read before proceeding.

This equipment is a relatively complicated apparatus. During rigging, installation, operation,

maintenance, or service, individuals may be exposed to certain components 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, installation, 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 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 individual 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:

DANGER

Indicates a possible hazardous situation which will result in death or serious injury if proper care is not

taken.

WARNING

Indicates a potentially hazardous situation which will result in possible injuries or damage to equipment

if proper care is not taken.

CAUTION

Identifies a hazard which could lead to damage to the machine, damage to other equipment and/or

environmental pollution if proper care is not taken or instructions and are not followed.

Note: Highlights additional information useful to the technician in completing the work being

performed properly.

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller2

WARNING

External wiring, unless specified 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 accordance

with Johnson Controls’ published specifications and must be performed only by a qualified 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 warning will void the

manufacturer’s warranty and cause serious damage to property or personal injury.

Changeability of this document

In complying with Johnson Controls’ policy for continuous product improvement, the information

contained 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 Johnson 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, rigging, 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.

Revision notes

Revisions made to this document are indicated in the following table. These revisions are to

technical information, and any other changes in spelling, grammar, or formatting are not included.

Affected pages Description

13 Option removed from HGBP actuator

74 Option removed from OptiView hot gas bypass

MSDS information

Material Safety Data Sheets (MSDS) information can be obtained by calling (800) 451-8346 in

the U.S. or by e-mailing [email protected]. Provide the product name, manufacturer, part

number, and the specific language required. JCI employees can refer to the following for more

information: https://my.jci.com/sites/BE/NASafety/safety-homepage.

3Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

Associated literature

Manual description Form number

YZ Unit Operations and Maintenance Manual 161.01-OM1

YZ Installation and Reassembly Manual 161.01-N1

YZ Installation Checklist and Request for Startup 161.01-CL1

YZ Startup Checklist 161.01-CL2

YZ Field Connections 161.01-PW1

YZ Field Control, Wiring and MBC Modifications 161.01-PW2

YZ VSD Wiring Diagrams 161.01-PW3

Centrifugal Chiller Long Term Storage 50.20-NM5

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller4

Nomenclature

Compressor Family

Diffuser Type

Compressor Size Code

Compressor Cycle

A N 030 N A - A A

Motor Configuration

Bearing Configuration

Bearing Family

Motor Family

Motor H P Code

M A 033 A A

Product Family

Stage End Name

Motor End Name

Special Contract

VSD Name

Unit Mod Level

YZ - MA033 AN030 P042N A -

Impeller Configuration

Flowpath Configuration

Mechanical Configuration

MOTOR END NAMING

STAGE END NAMING

SYSTEM NOMENCLATURE

VSD Family

cUL / cETL

VSD Output Amp Code

PYT 0330 G X N01 Z C 30 B 02 M L Z - 46 A

VARIABLE SPEED DRIVE NOMENCLATURE

Optional Filter

Z = Base Model

H = Filter Model

Design Center

Mounting System

Enclosure Type

0330 = 330 A

0420 = 420 A

0780 = 780 A

1020 = 1020 A

1280 = 1280 A

G = Global

X = Unit

N01 = NEMA 1

M = Magnetic

L = Oil

LD27334a

Chiller Type

Z = YZ

Cooling System

C = Condenser Liquid

W = Water

Heat Exchanger Rating

30 = 300 psig

Input Type

B = Circuit Breaker

Circuit Breaker Rating

02 = 250 A

04 = 400 A

06 = 600 A

08 = 800 A

12 = 1200 A

Bearing Type

Input Voltage / Frequency Codes

40 = 380 V / 60 Hz

50 = 380 V / 50 Hz

42 = 400 V / 60 Hz

43 = 400 V / 50 Hz

68 = 415 V / 50 Hz

46 = 460 V / 60 Hz

Mod Level

5Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

Cond Length (Feet)

LD26925

EVAPORATOR NAMING

Evap Hinges

Evap Water Inlet Side

Evap Water Connection Type

Cond Tube Type

Cond Bundle Fill

Cond Pass Limit

LR = Inlet Left, Outlet Right

LL = Inlet Left, Outlet Left

RL = Inlet Right, Outlet Left

RR = Inlet Right, Outlet Right

F = Flanges

G = Grooved

A = AGS Victaulic

B = Both Waterboxes

N = No Hinges

2, 3 Pass

Cond Hinges

Cond Nozzle Arrangment

Cond Water Connection Type

B = Both Waterboxes

N = No Hinges

F = Flanges

G = Grooved

A = AGS Victaulic

Evap Tube Type

Evap Bundle Fill

Evap Pass Limit

2, 3 Pass

Evap Family

Evap Diameter (Inches)

Evap Mod Level

Evap Length (Feet)

Evap Bundle Code

Evap Number of Passes

Evap Waterbox Mod Level

Evap Waterbox Family

Evap Waterside DWP

Cond Family

Cond Diameter (Inches)

Cond Mod Level

Cond Bundle Code

A = 3/4 in. Tubes 1 = 1 in. Tubes

C = Compact Welded

M = Marine Welded

1 = 150 psig 3 = 300 psig

1, 2, 3 Pass

Cond Number of Passes

Cond Waterbox Mod Level

Cond Waterbox Family

Cond Waterside DWP

1 = 150 psig 3 = 300 psig

A = 3/4 in. Tubes 1 = 1 in. Tubes

C = Compact

M = Marine

1, 2, 3 Pass

F A 21 12 - A 2 Z 750 - 2

C A 1 G LR B

EVAPORATOR WATERBOX NAMING

C A 21 12 - A 2 Z 750 - 2

CONDENSER NAMING

C A 1 G LR B

CONDENSER WATERBOX NAMING

LR = Inlet Left, Outlet Right

LL = Inlet Left, Outlet Left

RL = Inlet Right, Outlet Left

RR = Inlet Right, Outlet Right

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller6

Unit wiring

1. This wiring diagram describes the standard electronic control scheme for use with a YORK

Variable Speed Drive (VSD).

2. Field wiring to be in accordance with the National Electrical Code (NEC) and all other applicable

codes and specifications. Refer to 161.01-PW3 for field connections.

CAUTION

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 identification numbers. The number along

the right side indicates the line number location of relay contacts. An underlined contact

location signifies a normally closed contact.

4. Main Control Panel Class 1 Field Wiring Terminal connection points are indicated by numbers

within a rectangle. Main Control Panel Factory Wiring Terminal connection points are indicated

by numbers within a triangle. Component terminal markings are indicated by numbers within

a circle. Numbers adjacent to circuit lines are the circuit identification numbers.

Table 1: Connection points

Connection point Example

Main Control Panel Class 1 Field Wiring Terminal

Main Control Panel Factory Wiring Terminal

Component terminal markings

5. To cycle 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).

Remote run-stop switch (Line 32) is operative only in the “Remote” operating mode.

7. Device contact rating to be 5 mA at 115 VAC.

8. Contact rating is 5 A resistive at 120 VAC or 240 VAC.

9. For wiring diagrams of the VSD, refer to the YZ service manual 161.01-M3.

7Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

10. A jumper is installed between terminals 21 and 24 for normal operation. To check motor

rotation on initial start-up, the jumper may be removed and a momentary switch is installed

between terminals 21 and 24. Press the Start key on the display screen of the OptiView

TM

Control Panel. After initialization of the OptiView, jog the motor with the momentary switch.

Once proper rotation is obtained, replace the momentary switch with the jumper. The

momentary switch must have a minimum contact rating of 1 FLA, 10 LRA at 115 VAC.

CAUTION

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 or 24 may cause inadvertant compressor

start-up.

11. VSD is setup to trip at 105% FLA.

12. Contact rating is 5 A resistive at 250 VAC and 30 VDC, 2 A inductive (0.4 PF) at 250 VAC and 30

VDC.

13. Field connected control power supply is not required, as a factory installed transformer is

provided inside the Variable Speed Drive (VSD).

14. Maximum allowable current draw for the sum of all loads is 2 A holding, 10 A inrush.

15. Each 115 VAC field-connected inductive load, that is, the relay coil, motor starter coil, and

similar components, 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 in lower left corner of the control panel.

Note: Drawing number: 035-26662-000 REV E, SHT. 4

Legend

Table 2: Wiring diagram legend

Label Description

10L 2T protector (346 V and 600 V units only)

1T Class 2 power supply transformer

2T Class 2 power supply transformer

3M Condenser pump motor starter

1R Compressor motor (K18 - located on I/O board)

1SW Safety stop switch

BATT Battery

CP Condenser pressure (provided by transducer)

EEV Electronic expansion valve

EP Evaporator pressure (provided by transducer)

FLA Full load amperes (compressor motor)

FU Fuse

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller8

Table 2: Wiring diagram legend

Label Description

HGBP Hot gas bypass

HPCO High pressure cutout

K13, K14, K17 Relays mounted on I/O board. Refer to the operations manual Form 161.01-OM1.

L1 Inductor 4 A, 9 mH (460 VAC) or 8 A, 3 mH (230 VAC)

LCWT Leaving chilled water temperature

LLS Liquid level sensor (probe)

MBC Magnetic bearing controller

MOV Metal oxide varistor

MWT Motor winding temperature

OVA Cond. level control actuator

RES Resistor

Resistance temperature sensing element

Transient supressor

Terminal block, factory wiring

Terminal block, field connection

TB6 Terminal block, field (botttom), factory (top)

TB7 Terminal block, field (botttom), factory (top)

UPS Uninterruptible power supply

VGD Variable geometry diffuser

VSOP Variable speed oil pump

xSOL Solenoid valve

Field wiring

Factory wiring

Circuit board or enclosure boundary

Jack (J1, J2,…)

Plug (P1, P2, …)

Wire entrance hole in control panel

Option (as and when supplied) by YORK

Mechanical linkage

Shielded cable

Metal oxide varistor

Terminal located in starter (TB1 or 1TB)

Note: Drawing number: 035-26662-000 REV E, SHT. 5

9Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

Elementary wiring diagram

Figure 1: Elementary wiring diagram

LD27179

1

L

1

1FU

3

2

1

2

3

4

5

27

26

40

41

45

44

43

42

LT BLU

GRN/YEL

1T

1

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

C

29

16

6

53

K18

K14

K13

33

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 39

35

1R-3

(K18)

36

2FU

165

161

162

164

154

155

156

157

K17

24

VAC

1

2

158

160

163

164

159

16

53

16

15

17

HPCO

59

GROUNDED

CONDUCTOR

RED

2

5

162

CONTROL SUPPLY

115VAC 50/60Hz

20A OR 2.0KVA SOURCE

SEE NOTE 13

7 AMP 600V

BUSS KTK-R-7

RUN

CONTACTS

REMOTE MODE

READY TO START

CYCLING

SHUTDOWN

ALARM

SAFETY

SHUTDOWN

ALARM

WARNING

ALARM

7 AMP 600V

BUSS KTK-R-7

I/O

BOARD

031-03631

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

CONDENSER LIQUID

PUMP RUN

2

1

J2

315

TB7

VGD

SHUTDOWN

TO PURGE COMP. RUN

RELAY (K120)

(PURGE PANEL)

162

R1

5

TB15

PURGE REGEN

SUPR

DRAIN TANK SOL

TO REGEN TANK

HTR RELAY (K122)

(PURGE PANEL)

6FU

166

PURGE PUMP RUN

RELAY (K121)

(PURGE PANEL)

PURGE INLET SOL

PURGE PUMP SOL

PURGE REGEN

TANK SOL

29

TB6

CLL

CL1

58

CL1

SUPR

29

TB6

R

1

2

1

2

1

2

1

2

5SOL

4SOL

7SOL

6SOL

(OPTIONAL)

TB7

2A 125V

CL1

MOTOR COOLING

SUPR

BOOSTER

1

TB6

M

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller10

Figure 1: Elementary wiring diagram

LD27180

035-26662-000

REV E, SHT. 1

1

2

1

70

7

1

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

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

1

12

13

9

1

95

11

38

71

1

31

32

I/O

BOARD

031-03631

CONT'D.

REMOTE LCHLT SETPOINT

OFFSET (PWM SIGNAL)

REMOTE CURRENT LIMIT

SETPOINT (PWM SIGNAL)

REMOTE/LOCAL

CYCLING DEVICES

CHILLED LIQUID FLOW

SWITCH (OPTIONAL)

MULTI-UNIT

SEQUENCE

CYCLING

1

31

AUXILIARY

SAFETY

SHUTDOWN

REMOTE

RUN/STOP

TO

MICRO

BOARD

J19

R3

8

30

CONTROL VOLTAGE

82

R2

TB1

TB15

TB14

TB3

TB2

CONDENSER LIQUID

FLOW SWITCH

(OPTIONAL)

21

4

22

21

SAFETY STOP

1SW

11

12

28

TB13

MBC FAULT

(OPEN ON FAULT)

162

18

MBC LEVITATED

CL1

5

11Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

Figure 1: Elementary wiring diagram

LD27251

2

DISPLAY

40

39

41

42

43

44

45

46

47

48

49

50

52

51

1

TO

MICROBOARD

J5

J2-

50

TO

MICROBOARD

J6

2

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

[

STATIC SHIELD

J1-

COL 1

COL 2

COL 3

1

2

CN2

1

2

2T

24 VAC

FOR (EEV)

BOARD

SEE

SHEET 6

D8

SEE

SHEET 6

D8

TO POWER

SUPPLY

24

21

JOG LOCATION

SEE NOTE 10

A1

A2

B1

MOTOR

TO I/O BOARD

LINE 4

25

5FU

5AMP

125V

4

1SW

B2

22

21

C1

C2

A

B

C

1-1

1-4

2-1

D

2-4

E

F

1-2

1-4

G

2-2

2-4

1-3

1-4

H

J

2-3

2-4

K

DRN

L

M

T

RED

BLK

BLU

BLK

WHT

BLK

YEL

BLK

GRN

BLK

BRN

BLK

(TO VSD MWT CPC)

320

321

2

1

CL1

TO VSD PLUG, PIN A

(SEE SHEET 6)

(TO VSD VGD CPC)

1

2

3

GND

48 VDC

RTN

GND

DRAIN

A

B

GND

VGD

(TO OV PANEL)

(CABLE 32)

TB4-2

TB4-3

TB5-153

TB7-315

TB7-306

5

6

8

A

B

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller12

Figure 1: Elementary wiring diagram

LD27252b

A1

A2

B1

MOTOR

B2

C1

C2

A

B

C

1-1

1-4

2-1

D

2-4

E

F

1-2

1-4

G

2-2

2-4

1-3

1-4

H

J

2-3

2-4

K

DRN

L

M

T

RED

BLK

BLU

BLK

WHT

BLK

YEL

BLK

GRN

BLK

BRN

BLK

(TO VSD MWT CPC)

(TO VSD VGD CPC)

1

2

3

GND

48 VDC

RTN

GND

DRAIN

A

B

GND

VGD

(TO OV PANEL)

(CABLE 32)

TB4-2

TB4-3

TB5-153

TB7-315

TB7-306

5

6

8

A

B

TB4-4

4

025-44679-000

ACTUATOR WIRING

MOTOR WINDING

TEMPERATURE WIRING

(TO VSD VGD CPC)

1

2

GND

+48 VDC

RTN

DRAIN

1

2

CASE

VGD

(TO OV PANEL)

(CABLE 34)

TB4-3

TB4-4

1

5

TB4-2

2

025-50961-000

ACTUATOR WIRING

(TO OV PANEL)

(CABLE 35)

TB5-153

TB7-315

TB7-306

1

5

3

TB7-306

7

J-2

RED

J-3

J-1

BLK

WHT

CONDENSER LEVEL

CONTROL ACTUATOR

(CLCA)

J-2

RED

J-3

J-1

BLK

WHT

HGBP ACTUATOR

22

23

TO CONTROL PANEL

(SEE SHEET 7)

TO CONTROL PANEL

(SEE SHEET 7)

SUPR

29B

2M

2

1

4SOL

PURGE PUMP SOLENOID

VALVE

SUPR

29C

2N

2

1

5SOL

PURGE INLET SOLENOID

VALVE

(OPTIONAL)

PURGE REGEN TANK

SOLENOID VALVE

SUPR

29D

2P

2

1

7SOL

TO PURGE SOLS PLUG

(SEE SHEET 7)

TO PURGE SOLS PLUG

(SEE SHEET 7)

TO REGEN SOLS PLUG

(SEE SHEET 7)

SUPR

3

2F

2

1

6SOL

(OPTIONAL)

PURGE REGEN DRAIN TANK

SOLENOID VALVE

TO REGEN SOLS PLUG

(SEE SHEET 7)

SUPR

163

2H

(MCB)

MOTOR COOLING BOOSTER

TO (MCB) PLUG

(SEE SHEET 7)

M

GND

(PE14)

GNDA

(PE9)

GNDA

(PE11)

GND

(PE10)

GND

(PE8)

WHT

BLK

WHT

BLK

WHT

BLK

WHT

BLK

WHT

BLK

J-2

RED

J-3

J-1

BLK

WHT

FFBP ACTUATOR

21

(OPTIONAL)

TO CONTROL PANEL

(SEE SHEET 7)

035-26662-000

REV G, SHT. 3

13Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

OptiView control panel wiring diagram

Figure 2: OptiView control panel wiring diagram

LD27253a

1

95

34

2

3

62

155

2

1

33

61

6

R1

11

82

1

31

9

1

13

12

1

20

19

1

8

7

1

J2

TB9

TB5

32

70

18

223

225

22

161

163

162

158

160

159

58

59

1

164

TB15

165

J1

1

TB3

TB11

81

1

29

40

43

42

27

41

150

151

152

153

154

156

157

164

36

35

37

38

39

16

49

50

G

L

2

RED

LT BLU

GRN/YEL

16

2

16A

CL1B

J20

SHLD

GND

J10

J6

J5

J18

+

-

SHLD

GND

+

-

1

J7

J8

1

J9

J19

1

12

24

13

49

50

2

22

11

12

1

10

20

11

J22

1

JP24

1

JP23

1

JP22

JP21

1

6

7

12

J14

1

JP11

JP9

JP10

JP12

1

JP25

1

J1

F2

F1

F3

F4

1

J3

7

4

-12V

+12V

+24V

1

+12V

GND

GTX

DTR1

TXD1

RXD1

DSR1

GND

GRX

1

6

1

-

+

GND

SHLD

+12V

J15

J24

J25

J29

J30

TB10

1

V+

IN1

IN2

IN3

IN5+

IN5-

+5V

-

+

GND

TB1

1

TB3

J23

1

2

49

50

1

2

9

10

JP7

JP8

1

JP5

1

SMARC MODULE

SW1

1

ON

303

317

307

318

309

311

319

315A

308A

316A

SHIELD

RED

BLK

GND

IN6+

IN6-

OUT

JP4

JP2

JP3

GND

1

TB6

TB5

TB7

TB8

J21

1

2

4

3

MICROBOARD

031-03630

TO

DISPLAY

TO

KEYPAD

I/O BOARD

031-03631

J2 PRINTER

& BAS

J12

COM3

J13

MC1

TB2

VSOP/MBC

TB4

VGD

SD CARD

SLOT J26

J33

USB

K18

(1R RELAY)

TO J9 ON LTC

I/O BD.

5A

15

CL1H

2C

2B

6

16

6

CL1D

CL1C

29

ORG

BLU

30

71

R3

TB14

2

28

80

1

TB13

2C

28

CL1D

TB12

TB10

17

64

TB7

23

25

C

5B

TB8

TB6

26

56

55

45

44

TB4

R2

TB2

TB1

315C

WHT

CABLE

32

3

34

165

21

23

2

6

52

7

29

49

48

50

39

51

1

5

4

9

11

24

12

15

19

32

WHT

5C

1A

PE5

JP29

JP27

(TB6)

33

TX

RX

TX

RX

58

1B

163

GRN

SEE NOTE 16

EFS

CFS

(OPTIONAL)

32

OPTIONAL

CABLES 21, 22

TO

DISPLAY

22

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller14

Figure 2: OptiView control panel wiring diagram

LD27254a

TB6

2

29

25

24

2

PE

29

4

29D

21

R24

25

LA

1

1FU

5FU

PE

4

21

R24

2

2B

2F

2D

2R

1

2

1

L

CL1C

L

LB

CLL

CLLA

CL1

2FU

TB7

16

5

166

162

15

PE

53

PE

5

162

5

162

15

16A

166

314

302

314

302

PE

306

308

316

306

308

316B

308B

316

315

315C

315B

PE8

CABLE

32

RED

4FU

6FU

5A

5B

PE11

2A 125V

6FU

PE9

PE10

5A 125V

4FU

2

RED

L

7A

600V

7A

600V

29B

29A

5FU

24

2

2P

1B

LA

PE

PE1

32

1

6

5

4

3

2

1

6

5

4

3

2

1

6

5

4

3

2

REGEN SOLS

PURGE SOLS

PURGE PANEL

VSD

PE11

PE9

29D

2P

2M

2F

3

PE10

PE8

2N

29C

29B

2

3

B

1

A

C

D

2

PE

CLL

24

R24

34

165

29A

2L

5C

L

2E

1

1A

C

1

CL1A

CL1B

CL1E

CL1G

CL1H

L

C

1

L

C

1

L

C

L

CLLA

L

C

L

CLLB

RED

1R

11

14

(TB1)

A1

A2

LB

2R

L

G

CLLB

MOV

BLK

(TB1)

DRN

CAB1 TO

MICROBOARD

TB-1

L

PE4

315

CL1

2L

2A

LT BLU

2N

2M

2H

29C

29

5A 125V

PE14

PE13

1

6

5

4

3

2

MCB

PE13

2A

2H

163

58

PE14

PE

BLK

035-26662-000

REV G, SHT. 8

15Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

OptiView control panel microboard (031-03630)

Figure 3: OptiView control panel microboard (031-03630)

LD27255

POWER SUPPLY

MICROBOARD

031-03630

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller16

Figure 3: OptiView control panel microboard (031-03630)

LD27256

035-26576-000

REV D, SHT. 1

MICROBOARD

031-03630

To Display

(On Door)

(See Sheet. 2)

To Display

(On Door)

(See Sheet. 2)

To Keypad

(On Door)

17Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

OptiView control panel microboard (031-03630) details

Figure 4: OptiView control panel microboard (031-03630) details

LD27257

REMOTE CURRENT

LIMIT SETPOINT

22

21

9

20

8

19

7

18

6

17

5

16

4

13

1

2

14

3

15

1

J8-

12

2

+5V

GND

4-20 MA INPUT

0 TO 10V INPUT

GND SPARE

+5V SPARE

GND

+5V

GND

4-20 MA INPUT

+5V

GND

J7-

12

+5V

INPUT

GND

23

24

NOT USED

2

4

WHT

BLK

4

2

+5V

GND

INPUT

STALL

DETECTOR

BOARD

031-02418

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

J14-

J2-2

RED

BLK

GRN

BLK

WHT

NOT USED

WHT

KEY IN

KEY OUT

1

GND

J18-

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

5

1

2

3

BAS

POWER

(OPTION)

CURV

LWT

I

GND

-12VF

+12VF

J22-

J5-

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

GND

PID1

GND

PID0

GND

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

CURI

LWTV

GND

+24VF

J21-

NO CONNECT

J6-

NO CONNECT

BRIGHTNESS CONTROL -

BRIGHTNESS CONTROL WIPER

BRIGHTNESS CONTROL +

EN BKLT

GND

+V

1

2

3

10

4

5

6

7

8

9

TO

DISPLAY

BACKLIGHT

1

2

3

4-20mA

RET

0-10V

TB8-

1

2

3

TB7-

4-20mA

RET

0-10V

1

2

3

TB6-

WHT

4-20mA

RET

0-10V

TO

DISPLAY

+

-

1

3

+

-

1

3

TO 24 VAC SUPPLY

(OPTIONAL) CFS

CONDENSER

FLOW SWITCH

(OPTIONAL) EFS

CHILLED

LIQUID

FLOW SWITCH

RED

WHT

BLK

DISCHARGE

PRESSURE

TRANSDUCER

(0.5-4.5V)

22

BLK

TO TB7-5

TO TB7-162

RED

(OPTIONAL)

HEAD PRESSURE

CONTROL

RED

TO TB7-162

WHT

TO TB7-5

23

BLK

LIQUID

PURGE TANK HIGH LEVEL SWITCH

WHT

BLK

TB1

1

2

3

4

5

6

7

8

9

10

V+

IN 1 (UPS LINE/ CHARGING)

IN 2 (UPS INVERTER)

IN 3 (UPS FAULT)

IN 5+

IN 5-

IN 6+

IN 6-

GND

OUT

TB4

1

2

3

4

+5V

-

+

GND

TO VGD

ORG

BLU

WHT

HGBP

ACTUATOR

MOV

3

1

2

MOV

3

2

1

COND. LEVEL

CONTROL ACTUATOR

(CLCA)

BLK

YEL

ORG

BRN

RED

TO

UPS

SDC

24

(OPTIONAL)

SUCTION LIQUID

SENSOR

(OPTIONAL)

2

1

3

51

GND

NOT USED

STALL/ SURGE

DETECTION

(FROM MBC)

REMOTE COOLING/

REMOTE HEATING

SETPOINT

1R

RED

BLK

11

14

(UPS V+)

(UPS INVERTER ENABLE)

K1

See Detail D

See Detail E

See Detail D

MICROBOARD

031-03630

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller18

Figure 4: OptiView control panel microboard (031-03630) details

LD27258

TO

I/O

BD.

J1

20

10

8

12

J19-

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

HIGH PRESSURE CUTOUT SWITCH

MOTOR CONTROLLER FAULT

RESERVED (MBC #2 LEVITATED)

SAFETY STOP SWITCH

RESERVED (MBC #2 FAULT)

MBC/OIL PUMP VSD FAULT

MBC LEVITATED

SPARE

RESERVED (HPCO SWITCH #2)

REMOTE RUN/STOP SWITCH

CONTROL VOLTAGE

REMOTE COOLING SETPOINT

REMOTE CURRENT LIMIT SETPOINT

CHILLED LIQUID FLOW SWITCH

SYSTEM CYCLING SHUTDOWN

MULTI UNIT SEQUENCE CYCLING

SPARE

AUXILIARY SAFETY SHUTDOWN

CONDENSER LIQUID FLOW SWITCH

RESERVED (MOTOR CONTROLLER #2 FAULT)

+5V

GND

+12V

MOTOR COOLING BOOSTER

SPARE

VENT LINE SOLENOID

PURGE REGEN DRAIN TANK SOLENOID

SPARE

OIL HEATER

MOTOR CONTROLLER STOP

MOTOR CONTROLLER START

COND/EVAP OIL RETURN SOLENOID VALVE

PURGE INLET SOLENOID, PURGE PUMP, PURGE PUMP SOLENOID, PURGE REGEN TANK VENT SOLENOID

PURGE COMPRESSOR RUN

PURGE REGEN TANK HEATER

RESERVED (MOTOR CONTROLLER #2 STOP)

RESERVED (MOTOR CONTROLLER #2 START)

VGD SHUTDOWN

CONDENSER LIQUID PUMP RUN

CYCLING SHUTDOWN

SAFETY SHUTDOWN

REMOTE MODE READY TO START

WARNING ALARM

CHILLED LIQUID PUMP RUN

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

J3-

J13-

J2-

J15-

-12V

+12V

COM

+5V

+24VF

+12VF

SHIELD

+

-

-12V

GND

+12V

GND

+12V

SHLD

GTX

GRX

DTR1

TXD1

RXD1

DSR1

GND

J2

PRINTER

& BAS

3

2

+12V

EN SIG

1

J20-

PWM SIG

NOT USED

5

4

3

2

TB2

+

GND

SHLD

4

16

15

INPUT

GND

+12V

309A

1

311A

J10-

+24V

7

319

315A

6

1

7

+24V

J12-

COM3

EXP I/O

SHIELD

RED

BLK

+

-

J24-

J25-

RED

BLK

-

+12V

TB2

MBC

J29-

J30-

TB10

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

J1-

POWER IN

TO P30-12

TO J32-7

TO J32-8

BLK

RED

WHT

14

3

13

6

7

17

3

1

2

BLK

WHT

RED

EP

EVAPORATOR

PRESSURE

TRANSDUCER

(0.5-4.5V)

19

9

18

INPUT

GND

+12V

GND

INPUT

+5V

INPUT

GND

15

11

3

1

2

BLK

WHT

RED

CP

CONDENSER

PRESSURE

TRANSDUCER

(0.5-4.5V)

11

22

21

11

2

1

J9-

+5V

INPUT

GND

+5V

INPUT

GND

12

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

INPUT

+5V

INPUT

+5V

INPUT

+5V

INPUT

+5V

INPUT

+5V

3

13

RT7

EVAPORATOR

REFRIG.TEMP.

THERMISTOR

BLK

RED

1

2

INPUT

+5V

7

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)

NOT USED

TX

RX

TX

RX

FIBER

TO VSD

GRY

BLU

FIBER

TO MBC

GRY

BLU

3

1

2

NOT USED

SPARE

J13

MOTOR

CONTROLLER

035-26662-000

REV E, SHT. 3

See Detail A

See Detail B

See Detail C

Note: See details A, B and C of Figure 5 and details D and E of Figure 6.

Wiring notes

1. If flow switches are connected to J14, microboard jumpers JP10, JP11, and JP12 must be on pins

2 and 3.

2. For VGD communication, jumpers JP27 and JP29 must be installed on pins 1 and 2.

19Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller

OptiView control panel microboard (031-03630) details A, B,

and C

Figure 5: OptiView control panel microboard (031-03630) details A, B, and C

LD27259

035-26662-000

REV E, SHT. 3

20

10

8

12

4

16

15

INPUT

GND

+12V

BLK

RED

WHT

14

3

13

6

7

17

3

1

2

BLK

WHT

RED

19

9

18

INPUT

GND

+12V

GND

INPUT

+5V

INPUT

GND

15

11

3

1

2

BLK

WHT

RED

11

22

21

11

2

1

J9-

+5V

INPUT

GND

+5V

INPUT

GND

12

2

1

RED

BLK

2

1

RED

BLK

2

1

2

1

RED

BLK

14

4

15

5

16

6

17

7

18

8

BLK

RED

1

2

BLK

RED

1

2

19

9

20

10

INPUT

+5V

INPUT

+5V

INPUT

+5V

INPUT

+5V

INPUT

+5V

INPUT

+5V

3

13

BLK

RED

1

2

INPUT

+5V

7

2

5

RED

BLK

6

4

9

1

3

1

2

303A

317

318

307A

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

J3-

J13-

J2-

J15-

-12V

+12V

COM

+5V

+24VF

+12VF

SHIELD

+

-

-12V

GND

+12V

GND

+12V

SHLD

GTX

GRX

DTR1

TXD1

RXD1

DSR1

GND

3

2

+12V

EN SIG

1

PWM SIG

5

4

3

2

TB2

+

GND

SHLD

309A

1

311A

J10-

+24V

7

319

315A

6

1

7

+24V

SHIELD

RED

BLK

+

-

J24-

J25-

RED

BLK

-

+12V

TB2

MBC

J29-

J30-

TB10

1

TO J9 ON

LTC I/O BD.

GND

-12VF

308A

316A

TO P30-12

TO J32-7

TO J32-8

GND LUG

TX

RX

TX

RX

GRY

BLU

GRY

BLU

SPARE

Detail A

High Pressure Cutout Switch

Motor Controller Fault

Reserved (MBC#2 Levitated)

Safety Stop Switch

Reserved (MBC#2 Fault)

MBC/Oil Pump VSD Fault

MBC Levitated

Spare

Reserved (HPCO Switch# 2)

Remote Run/Stop Switch

Control Voltage

Remote Cooling Setpoint

Remote Current Limit Setpoint

Chilled Liquid Flow Switch

System Cycling Shutdown

Multi Unit Sequence Cycling

Aux. Safety Shutdown

Cond. Liquid Flow Switch

Reserved (Motor Controller #2 Fault)

Spare

+5V

GND

+12V

Motor Cooling Booster

Spare

Vent Line Solenoid

Purge Regen Drain Tank Solenoid

Spare

Purge Compressor Run

Motor Controller Stop

Motor Controller Start

Cond./Evap Oil Return Solenoid Valve

Purge Inlet Solenoid, Purge Pump,

Purge Pump Solenoid,

Purge Regen Tank Vent Solenoid

Oil Heater

Purge Regen Tank Heater

Reserved (Motor Controller #2 STOP)

Reserved (Motor Controller #2 START)

VGD Shutdown

Condenser Liquid Pump Run

Cycling Shutdown

Safety Shutdown

Remote Mode Ready to Start

Warning Alarm

Chilled Liquid Pump Run

To I/O Board J1

J19

To J2-9

To J2-11

To J2-13

To J2-12

To J2-7

To J2-1

To J2-3

J1-

Power IN

Not Used

Fiber to MBC

Fiber to VSD

Option

to SC-EQ

J12-

COM3

EXP I/O

J13

Motor

Controller

J2 Printer

& BAS

J20-

Detail B

OnPower Supply

Detail C

Not Used

Condenser

Refrigerant

Level Sensor

(LLS)

EP

Evaporator

Pressure

Transducer

(0.5-4.5V)

CP

Condenser

Pressure

Transducer

(0.5-4.5V)

RT7

Evaporator

Refrig. Temp.

Thermistor

RT2

Discharge Temp.

Thermistor

RT6

Drop Leg

Refrig. Temp.

Thermistor

RT5

Entering Cond.

Liquid Temp.

Thermistor

RT4

Leaving Cond.

Liquid Temp.

Thermistor

RT9

Entering Chilled

Liquid Temp.

Thermistor

RT1

Leaving Chilled

Liquid Temp.

Thermistor

COM 5A

SPARE

DC Undervolt

Input

Cond. Press Feed Through

Evap. Press Feed Through

Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller20

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Johnson Controls YZ Product information

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