York YST Manual

WIRING DIAGRAMS

CONTRACTOR _________________________ PURCHASER _____________________________________________

ORDER NO. ____________________________ JOB NAME ________________________________________________

JCI CONTRACT NO. _____________________ LOCATION ________________________________________________

JCI ORDER NO. _________________________ ENGINEER _______________________________________________

REFERENCE DATE ________ APPROVAL DATE ________ CONSTRUCTION DATE _______

New Release Form: 160.67-PW7 (219)

MODEL YST STEAM TURBINE DRIVE

CENTRIFUGAL CHILLER WITH

OPTIVIEW™CONTROL CENTER

Issue Date:

February 28, 2019

JOB DATA:

YST CHILLER MODEL NO. ________________________________________________________

NO. OF UNITS _____________

STEAM TURBINE MODEL_________________________________________________________

OIL PUMP MOTOR _____________ VOLTS, 3-PHASE, _____________ Hz, _____________FLA

REMARKS:

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

JOHNSON CONTROLS

2

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

This equipment is a relatively complicated apparatus.

During installation, operation maintenance or service,

individuals may be exposed to certain components or

conditions including, but not limited to: 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 respon-

sibility of 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 160.67-PW7

ISSUE DATE: 2/28/2019

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

Operation Manual - Model YST Steam Turbine Drive Centrifugal Liquid Chiller with OptiView™ Control

Center Design Level F and G 160.67-O1

Wiring Diagram - Field Control Modications MaxE™ Model YST Chillers (Style F) 160.67-PW2

Wiring Diagram - Model YST Steam Turbine Drive Centrifugal Liquid Chillers Floor Mounted Steam

Condenser Design Level F and G 160.67-PW4

Wiring Diagram - Model YST Steam Turbine Drive Centrifugal Liquid Chillers Top Mount Steam Con-

denser Design Level F and G 160.67-PW5

ASSOCIATED LITERATURE

JOHNSON CONTROLS

4

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

THIS PAGE INTENTIONALLY LEFT BLANK.

JOHNSON CONTROLS 5

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

LEGEND

LABEL DESCRIPTION

CS Start/Stop Control Switch

DS Disconnect Switch

FCV Solenoid Or Electrically Actuated Ball

Valve

FLA Full Load Amps

FU Fuse

HGBP Hot Gas Bypass Valve (TCV-100A)

HTR 3-Phase Thermostatically Controlled

3000 Watt Oil Heater at Line Voltage

HW Hotwell

K7, K8, K13,

K14, K17, K18 Relays Mounted on YORK I/O Board

LCV Level Control Valve Actuator (LCV-113)

LE Level Transducer (0-5 VDC Output)

LSH High Level Switch

LT Level Transmitter (4-20 MA DC Output)

MContactor/Motor Starter

MOV Metal Oxide Varistor

MP Manual Motor Protector

MP_A Manual Motor Protector Auxiliary Contact

(see note 19)

MP_S Manual Motor Protector Signaling Contact

(see note 25)

MPU Magnetic Pickup

PE Pressure Tranducer (0.5-4.5 VDC Output)

PGD Proximity Gap Distance (ZE-142)

PT Pressure Transmitter (4-20 MA DC Out-

put)

PRV Pre-Rotation Vanes (TCV-100)

PSHH-112A Compr. Disch. High Press. Cutout, Hard-

wired

PWM Pulse Width Modulated

R Control Relay

RES Resistor

SC Speed Control

SS Speed Switch

ST Speed Transmitter (4-20 MA DC Output)

T Transformer

TB1, TB3,

TB5, TB7

Terminal Block

Factory Wiring -

TB2, TB4 Terminal Block

Field Connection -

TB6 Terminal Block -

Field (bottom) Factory (top)

LABEL DESCRIPTION

TB7 Terminal Block -

Field (left) Factory (right)

TB8 Terminal Block in Power Panel,

Factory -

TB9 Terminal Block in Steam

Condenser Junction Box -

TE Resistance Temperature

Sensing Element

VE Vibration Proximity Probe

VGD Variable Geometry Di󰀨user

VMS Vane Motor Closed Limit Switch

VT Vibration Transmitter

ZS Limit Switch

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

Shielded Cable

Metal Oxide Varistor

SUPR Transient Suppressor

Ground

035-26593-000

SHT. 2 OF 11

REV. H

JOHNSON CONTROLS

6

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

NOTES

1. This wiring diagram describes the standard elec-

tronic control scheme for use with a steam turbine

drive. For details of eld control modications,

refer to Product Form 160.67-PW2.

2. Field wiring to be in accordance with the National

Electrical Code as well as all applicable codes and

specications. Refer to Form 160.67-PW5 (Top

Mount Steam Condenser) and Form 160.67-PW4

(Floor Mount Steam Condenser) for eld wiring

connections.

3. Numbers along the left side of the diagram are

line identication numbers. The number along

the right side indicates the line number location

of relay contacts. An underlined contact location

signies a normally closed contact.

4. Main Control Panel Class 1 eld wiring terminal

connection points are indicated by numbers with-

in a rectangle i.e. 15 . Main Control Panel factory

wiring terminal connection points are indicated

by numbers within a triangle i.e. 5 . Component

Terminal connection points are indicated by num-

bers within a circle i.e. CI . Numbers adjacent to

circuit lines are the circuit identication numbers.

Power Panel wiring terminal connection points

are indicated by numbers within a hexagon i.e .

L1 . Steam Condenser junction box wiring termi-

nal connection points are indicated by numbers

within a diamond i.e. 80 .

5. To cycle unit ON and OFF automatically and pro-

vide a controlled shutdown. Install a cycling de-

vice between terminals 1 & 13 . (Line 33A) (see

Note 9). If a cycling device is installed, jumper

must be removed between terminals 1 & 13 .

6. Fuse sizes and motor overload setpoints depend

on voltage of single point power supply. See chart

on eld connection diagram on door of panel.

7. To stop unit and not permit it to start again, after a

controlled shutdown install a stop device between

terminals 1 & 8 (Line 32A) (see Note 9). A

remote start-stop switch may be connected to ter-

minals 1 , 7 ,& 8 . (Line 32A) (see Note 9). Re-

mote switches are operative only in the "remote"

operating mode.

8. Contact rating is 5 amps resistive at 120 volts AC

or 240 volts AC.

9. Device contact rating to be 5 milliamperes at 115

volts AC.

10. Three phase power must be properly phased. L1,

L2, & L3 corresponding to phase sequence A, B,

& C.

11. Contact rating is 5 Amps resistive at 250 volts AC

& 30 volts DC 2 Amp inductive (.4 PF) at 250

volts AC & 30 volts DC.

12. Each 115 VAC eld-connected inductive load

I.E. relay coil, motor starter coil, etc. shall have a

transient suppressor wired in parallel with its coil,

physically located at the coil. Spare transient sup-

pressor and control circuit fuses are supplied in

a bag attached to the green ground screw in the

lower left corner of the control panel.

13. Turbine auxiliary oil pump, oil cooler, oil sensors

& turbine oil safety logic are supplied only on

turbines with pressurized lubrication.

14. If optional chilled and condenser liquid low pres-

sure dierential switches are installed, panel must

be congured for "digital" ow sensor. Refer to

Form 160.67-O1.

15. Refer to Operators Manual for a detailed descrip-

tion of chiller operation & all wanring/shutdown

operating points.

16. Do NOT apply voltage on eld wiring terminal

blocks TB4 or TB6. All 115 volt AC power is fed

from terminals 1 & 2.

17. Do NOT apply voltage on eld instrument wiring

terminal block TB7. All instrument loop power is

supplied from terminals 325, 327, & 329 .

18. YST chillers are supplied with automatic starting

as standard. Manual starting is not recommended

and will be supplied by special quote only.

19. Manual motor protector auxiliary contact is open

when operator is in the OFF position, closed when

operator is in the ON or any tripped position.

20. Liquid injection solenoid is supplied on K3, K4,

& K7 compressors only.

21. Optional wiring between the chiller terminal box

and the oor mounted steam condensor is sup-

plied by the factory for installation in conduit by

the electrical installation contractor.

22. For standard top mounted steam condensor cables

28, 30, and 42 are connected directly to devices

shown after the steam condensor is installed in the

eld.

JOHNSON CONTROLS 7

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

23. For standard top mounted steam condenser, the

harnesses from the main junction box and power

panel are connected directly to the steam condens-

er box after the steam condenser is installed in the

eld.

24. For inlet steam pressures up to 200 PSIG, PT-170

Range is 0-300 PSIG and PT-172 Range is 0-100

PSIG. For inlet steam pressures above 200 PSIG,

PT-170 Range is 0-500 PSIG and PT-172 Range

is 0-150 PSIG.

25. Manual motor protector signaling contact is

closed when operator is in the o or on position,

open when operator is in any tripped position.

Trips may be caused by thermal overload, short

circuit, under-voltage, or shunt.

NOTES (CONT'D)

JOHNSON CONTROLS

8

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

ELEMENTARY DIAGRAM

LD28558

035-26593-000

SHT. 1 OF 11

REV. H

FIGURE 1 - ELEMENTARY DIAGRAM

JOHNSON CONTROLS 9

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

ELEMENTARY DIAGRAM (CONT'D)

LD28559

035-26593-000

SHT. 1 OF 11

REV. H

FIGURE 2 - ELEMENTARY DIAGRAM

JOHNSON CONTROLS

10

FORM 160.67-PW7

ISSUE DATE: 2/28/2019

LD28560

FIGURE 3 - ELEMENTARY DIAGRAM

ELEMENTARY DIAGRAM

York YST Manual

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