EWWD 170-600 DJYNN. 2 15-Sep-15 Water Cooled Chiller 166 kW ÷ 604 kW Single Screw Compressor EWWD 170-600 DJYNN.

EWWD170-600DJYNN

2Apr 21, 2023

Water Cooled Chiller

166 kW ÷ 604 kW

Single Screw Compressor

EWWD170-600DJYNN

3Apr 21, 2023

TABLE OF CONTENTA. 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. EWWD-DJYNN Options Summary

1. Standard options

2. Options on request

4Apr 21, 2023

EWWD-DJYNN: unit efficiency level

600

500

460

420380

320

300

260

210170

650

550500

460400

380

320

280230

190

3.50

3.70

3.90

4.10

4.30

4.50

4.70

4.90

100 200 300 400 500 600 700

kW

EE

R

EWWD-DJYNN EWWD-DJYNN/A

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

5Apr 21, 2023

EWWD-DJYNN: cooling range

100 200 300 400 500 600 700

EWWDDJYNN

EWWDDJYNN/A

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

1 Compressor 2 Compressors

1 Compressor 2 Compressors

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

6Apr 21, 2023

EWWD-DJYNN: sizes distribution

555.7493.7448.3402.5372.2333.9280.4252.8201.2165.5

603.9540.5496443.6408.2366.3306.7276.5223.3186.4

100 200 300 400 500 600 700

kW

EWWD-DJYNNEWWD-DJYNN/A

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

7Apr 21, 2023

B. OPERATING LIMITS

Note: Glycol is necessary for evaporator leaving water temperatures below +3°C

Operating range EWWD-DJYNN

20

25

30

35

40

45

50

55

-10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18

Evaporator leaving temperature - °C

Co

nd

en

se

r le

av

ing

te

mp

era

ture

- °

C

8Apr 21, 2023

EWWD-DJYNN – Single Screw Compressor

“ Frame3200 ” single screw compressor

axial balanced loads

radial balanced loads

2 specular compression cycles

infinitely variable cooling capacity control

integrated 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 21, 2023

EWWD-DJYNN – Single Screw Compressor

“ Compressor ”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 21, 2023

EWWD-DJYNN – Single Screw Compressor

“ Frame 3200 ”

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

The integral oil separator is bolted to the rear of the main casing. The impingement type separator is fitted with a knitted stainless steel mesh element.

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

C. COMPRESSOR FEATURES (3/3)

11Apr 21, 2023

D. REFRIGERANT CIRCUIT

EWWD-DJYNN single compressor circuit

12Apr 21, 2023

E. Dry-eXpansion shell & tube evaporator

1) One pass configuration on refrigerant side (R-134a)

Better oil circulation and compressor oil return at part load operation

2) 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 21, 2023

EWWD-DJYNN – 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 AND REMOTE CONTROL (1/4)

14Apr 21, 2023

EWWD-DJYNN – 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 AND REMOTE CONTROL (2/4)

15Apr 21, 2023

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

High value control functions implemented as standard into the logic

F. CONTROL AND REMOTE CONTROL (3/4)

STANDARD

SPN

16Apr 21, 2023

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

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)

F. CONTROL AND REMOTE CONTROL (4/4)

17Apr 21, 2023

EWWD-DJYNN – 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 21, 2023

H. EWWD-DJYNN:

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

Suction stop valve

Available options OPPF: Power factor 0.9

OP57: A/V meter

OPSS: Soft starter

OPNI: Cu/Ni heat exchanger

OPLN: Low noise version

OPPR: Partial Heat Recovery

OPTR: Heat Recovery

Unit Types /A: High Efficiency

19Apr 21, 2023

1. OPTIONS AS STANDARD (1/2)

SUCTION LINE SHUT OFF VALVE – Suction shut-off valve installed on the suction port of the compressor to facilitate maintenance operation.

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.

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.

20Apr 21, 2023

UNDER/OVER VOLTAGE CONTROLLER – Phase monitor to control the minimum and maximum voltage value that the user can set.

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.

1. OPTIONS AS STANDARD (2/2)

21Apr 21, 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).

OPLN: Sound proof cabinet - Made of sheet metal and internally insulated, the sound proof cabinet is around the compressor/s reach the best performance in noise reduction.

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

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

22Apr 21, 2023

OPTR: 100% total heat recovery – Produced with tube bundle placed in a single

shell with the water condensers heads 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 21, 2023