EWWD340-C19CJYNN

2Apr 19, 2023

Water Cooled Chiller

334 kW ÷ 1893 kW

Single Screw Compressor

EWWD340-C19CJYNN

3Apr 19, 2023

TABLE OF CONTENT

A. Unit position into the range

B. Operating Limits

C. Compressor features

D. Refrigerant Circuit

E. Dry-eXpansion shell & tube evaporator

F. Control & remote control

G. Unit delivery

H. Options summary

1. Standard options

2. Options on request

4Apr 19, 2023

EWWD-CJYNN: unit efficiency level

C19

C18

C17C16

C15

C14

C13

C12

C11

C10

950

900

800

750

700

550

480

400

340

4.00

4.10

4.20

4.30

4.40

4.50

4.60

4.70

0 200 400 600 800 1000 1200 1400 1600 1800 2000

kW

EE

R

A. UNIT POSITION INTO THE RANGE (1/3)

5Apr 19, 2023

EWWD-CJYNN: cooling range

0 500 1000 15002000

kW cooling @ Evap. 12/7°C - Cond. 30/35°C

4 Compressors2 Compressors 3 Compressors 1 Compressor

A. UNIT POSITION INTO THE RANGE (2/3)

6Apr 19, 2023

EWWD-CJYNN: sizes distribution

334 462 666 792 934 1074 1205 1331 1525 1629 1761 1893

139412681139871735510399

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200

kW

A. UNIT POSITION INTO THE RANGE (3/3)

7Apr 19, 2023

B. OPERATING LIMITS

Max evaporator leaving water temperature °C 15Min evaporator leaving water temperature (without glycol) °C 4Min evaporator leaving water temperature (with glycol) °C -8Min evaporator water DT °C 4Max evaporator water DT °C 8Min DT between leaving water evaporator and leav. water condenser °C 16Max DT between leaving water evaporator and leav. water condenser °C 48Min condenser entering water temperature °C 15Max condenser leaving water temperature °C 55Min condenser water DT (1 pass, 2 passes - DT 4÷8 °C) °C 4Max condenser water DT (1 pass, 2 passes - DT 4÷8 °C) °C 8Min condenser water DT (2 passes - DT 8÷15 °C) °C 8Max condenser water DT (2 passes - DT 8÷15 °C) °C 15

8Apr 19, 2023

EWWD-CJYNN – Single Screw Compressor

“ Frame4 ” single screw compressor

axial balanced loads

radial balanced loads

2 specular compression cycles

infinitely variable cooling capacity control

external oil separator

direct driven screw (no gear)

6 electrical terminals for Y-D as standard

fully semi-hermetic design

composite material on gate rotors

suctioncompressiondischarge

C. COMPRESSOR FEATURES (1/3)

9Apr 19, 2023

EWWD-CJYNN – Single Screw Compressor

“ Frame4 ”

radial balancing axial balancing

Composite material (carbon base composition) to improve compressor reliability and energy performances

Stepless slide valve (oil controlled) to change compressor capacity to match exactly the plant thermal request

better chilled water stability

C. COMPRESSOR FEATURES (2/3)

10Apr 19, 2023

EWWD-CJYNN – Single Screw Compressor

“ Frame4 ”

Six electrical terminals to allow as standard a star-delta (Y-D) compressor start

External high efficiency (98%) oil separator.

Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary

C. COMPRESSOR FEATURES (3/3)

11Apr 19, 2023

D. REFRIGERANT CIRCUITS

WL1ST1

EVAPORATOR

WL2ST2

DRIER FILTER

OIL SEPARATOR

WH3

CONDENSER

WATER OUT

WATER INLET

EX8ELECTRONICEXP. VALVE

COMPRESSOR

EX8ELECTRONICEXP. VALVE

EX8ELECTRONICEXP. VALVE

EVAPORATORHEATER

WATERINLET

WATEROUTLET

Y5

Y6

WO1

EWWD-CJYNN with 3 refrigerant circuits: 3 compressors, 3 expansion valves, 3 condensers, 3 evaporating sections in the evaporator’s shell, 3 dry-filters

12Apr 19, 2023

E. Dry-eXpansion shell & tube evaporator

1) Higher water volume content (Vs PHE Plate Heat Exchanger)

More thermal inertia for the chiller

Smaller external water tank installation (when required)

No freezing risk at any chiller load

No “water hammer” phenomena damage

copper tube internally enhanced

13Apr 19, 2023

EWWD-CJYNN – Electrical Panel Features

Main switch: only on OFF position, it allows the access inside the panel.

Control keypad and display are located outside on the front door.

F. CONTROL & REMOTE CONTROL (1/4)

14Apr 19, 2023

EWWD-CJYNN – Microprocessor Control “Microtech II C Plus”

Motherboard with microprocessors

Unit Controller fully programmed and engineered by Daikin on Carel hardware

P.I.D. logic (proportional, integrative, derivative)

Compressor regulated according leaving evaporator water temperature (LEWT) to match customer set-point within ± 0.2°C

Easy visual interface with 4 rows and 20 characters display and 15 keypad

F. CONTROL & REMOTE CONTROL (2/4)

15Apr 19, 2023

EWWD-CJYNN – Microprocessor Control “Microtech II C Plus”

High value control functions implemented as standard into the logic

F. CONTROL & REMOTE CONTROL (3/4)

SPN

STANDARD

16Apr 19, 2023

EWWD-CJYNN – Microprocessor Control “Microtech II C Plus”F. CONTROL & REMOTE CONTROL (4/4)

Easy integration into building automation systems via separate digital connection for unit start/stop and 4-20 mA signals for chilled water reset and demand limiting; Communications capabilities for remote monitoring, changing of setpoint, trend logging, alarm and event detection, via a compatible IBM-PC with PlantVisor 1.0 software; BMS communication capability via Modbus, BacNet & LonWorks protocol Remote communication via modem/GSM (up to 8 chillers with Gateway) Compatibility with Daikin CSC II (Chiller Sequencing Control)

17Apr 19, 2023

EWWD-CJYNN – Unit delivery, moving and lifting

Unit is delivered EXW (Ex works);

Each unit is tested at full load before shipping;

Unit handling must be according to IOM manual.

G. UNIT DELIVERY

18Apr 19, 2023

EWWD-CJYNN: OPTIONS SUMMARY

Standard options Heatpump version

Brine version

Dual setpoint

Thermal relays compressors

Under/over voltage controller

Victaulic on condenser & evaporator

Flow switch for evaporator

Setpoint reset and demand limit

Alarm from external device

Rubber type antivibration mounts

Main switch

Electronic Expansion valve

Available options OPPF: Power factor 0.9

OP12: Suction stop valve

OP57: A/V meter

OPSS: Soft starter

OPNI: Cu/Ni heat exchanger

OPTR: Heat Recovery

OPPR: Partial Heat Recovery

19Apr 19, 2023

1. OPTIONS AS STANDARD (1/2)

FLOW SWITCH – Supplied separately to be wired and installed on the evaporator

water piping (by others).

COMPRESSOR THERMAL OVER RELAYS – Safety devices against compressor

motor overloading in addition to the normal protection envisaged by the electrical

windings.

ALARM FROM EXTERNAL DEVICE – Microprocessor is able to receive an alarm

signal from an external device (pump etc…). User can decide if this alarm signal

will stop or not the unit.

UNDER/OVER VOLTAGE CONTROLLER – Phase monitor to control the minimum

and maximum voltage value that the user can set.

20Apr 19, 2023

1. OPTIONS AS STANDARD (2/2)

RUBBER TYPE ANTIVIBRATION MOUNTS – Supplied separately, these are

positionned under the base of the unit for “floor installation”.

ELECTRONIC EXPANSION VALVE – It proposes features that makes it unique:

short openning and closing time, high resolution, positive shut-off function to

eliminate use of additional solenoid valve, highly linear flow capacity, continous

modulation of mass flow without stress in the refrigerant circuit and corrosion

resistance stainless steel body.

21Apr 19, 2023

2. OPTIONS ON REQUEST (1/2)

OPSS: Soft start – Electronic starting device to reduce starting current. An overload protection is included (no need of compressors thermal relays).

OP12: Suction line shut off valve – Suction shut-off valve installed on the suction port of the compressor to facilitate maintenance operation.

OPPF: Capacitor power factor correction - Installed on the electrical control panel to ensure it conforms to the plant rules (Daikin advises maximum 0,9).

22Apr 19, 2023

OP57: Ammeter and voltmeter – Digital meters of unit drawn amperes and voltage values, installed on the electrical control panel.

OPTR: 100% total heat recovery – Produced with tube bundle placed in a single shell with the water condensers heads are provided with 2 connections for entering/leaving heat recovery water and 2 separate connections for condensing water.

OPPR: Partial heat recovery – Produced with plate to plate heat exchangers installed on discharge side of compressor gas. These allow hot water to be produced up to a maximum temperature of +50°C

2. OPTIONS ON REQUEST (2/2)

23Apr 19, 2023