Johnson Controls YZ Guía de inicio rápido

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 OptiViewTM

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

1FU

LT BLU

GRN/YEL

K18

K14

K13

5, 7, 10, 19

151

150

K18

1R-1

(K18)

1R-2

(K18)

TO LINE 39

1R-3

(K18)

2FU

165

161

162

164

154

155

156

157

K17

VAC

158

160

163

164

159

HPCO

GROUNDED

CONDUCTOR

RED

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

315

TB7

VGD

SHUTDOWN

TO PURGE COMP. RUN

RELAY (K120)

(PURGE PANEL)

162

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

TB6

CLL

CL1

SUPR

TB6

5SOL

4SOL

7SOL

6SOL

(OPTIONAL)

TB7

2A 125V

CL1

MOTOR COOLING

SUPR

BOOSTER

TB6

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

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