EWAD190-650AJYNN

2Apr 21, 2023

Air Cooled Chiller - Cooling Only

177 kW ÷ 626 kW

Single Screw Compressor

EWAD190-650AJYNN

3Apr 21, 2023

TABLE OF CONTENTA. EWAD-AJYNN range

B. Unit position into the range

C. Technical solution

D. Operating Limits

E. Compressor features

F. Refrigerant Circuit

G. DX shell & tube evaporator

H. Control & remote control

I. Unit delivery

J. Options summary

1. Standard options

2. Options on request

4Apr 21, 2023

EWAD-AJYNN Flexibility

Standard unit

3 noise versions available:

OPRN74,5 ÷ 76,5 dB(A)

OPLN70 ÷ 73 dB(A)

VERSION /Q65 ÷ 66 dB(A)

Version /A

2 noise versions available:

BASE MODEL77,5 ÷ 79 dB(A)

+ OPLN72,5 ÷ 73,5 dB(A)

Version /H

1 noise version available:

BASE MODEL77 ÷ 80,0 dB(A)

A. EWAD-AJYNN RANGE

5Apr 21, 2023

EWAD-AJYNN: Unit efficiency levelB. UNIT POSITION INTO THE RANGE (1/4)

150 200 250 300 350 400 450 500 550 600 650 700 750

2.00

2.15

2.30

2.45

2.60

2.85

3.00

3.15

3.30

EE

R

KW

190

200

230

260

280

300

320

340360

EWAD-AJYNN

400

550500

480

440

600

= with economizer

6Apr 21, 2023

150 200 250 300 350 400 450 500 550 600 650 700 750

2.00

2.15

2.30

2.45

2.60

2.85

3.00

3.15

3.30

EE

R

KW

210

EWAD-AJYNN/Q

B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level

240

260

320

280

300

340

400

440

500

460

EWAD-AJYNN/A

260

280

320

340

360380

420500 550

600650

= with economizer

7Apr 21, 2023

150 200 250 300 350 400 450 500 550 600 650 700 750

2.00

2.15

2.30

2.45

2.60

2.85

3.00

3.15

3.30

KW

300

EWAD-AJYNN/H

210

200

280240

260320

340

400

420

460

480

500 550600

B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level

EE

R

= with economizer

8Apr 21, 2023

EWAD-AJYNN BASE MODEL / HIGH EFFICIENCY: cooling range

100 200 300 400 500 600 700

EWAD-AJYNN/H

EWAD-AJYNN/A

EWAD-AJYNN/Q

EWAD-AJYNN

kW cooling @ Evap. 12/7°C - 35°C OAT

2 Compressors

2 Compressors

2 Compressors

B. UNIT POSITION INTO THE RANGE (2/4)

2 Compressors

= with economizer

9Apr 21, 2023

EWAD-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (3/4)

KW200150 250 300 350 400 450 500 550 600 650 700

EWAD-AJYNN EWAD-AJYNN+OPRN EWAD-AJYNN+OPLN

400 440 480 500 550 600

190

200

230

260

280

300

320

340

360 440

480

500

550

600

190

200

230

260

280

300

320

340

360 440

480

500

550

600

10Apr 21, 2023

EWAD-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (3/4)

KW200150 250 300 350 400 450 500 550 600 650 700

EWAD-AJYNN/Q EWAD-AJYNN/H

240 280 320

460210 260 300 340 400

440 500

200

210

240 280

300

320

340 400

420

460

480 550

600260 500

11Apr 21, 2023

EWAD-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (3/4)

KW200150 250 300 350 400 450 500 550 600 650 700

EWAD-AJYNN/A EWAD-AJYNN/A+OPLN

280 320 420

260 340

360

380

500

650

260

280

320

340

360

380 420 500

550

600

550

600

650

12Apr 21, 2023

EWAD-AJYNN – Base model/OPRN - Technical solution

EWAD-AJYNN/A 77,5 ÷ 79,0 dB(A)

EWAD-AJYNN 75,0 ÷ 79 dB(A)

ISO 3744 - @ 1m hemispherical field

BASE MODEL - /A Helicoidal fans (900 RPM) with good acoustic performance and no mechanical vibrations

Compressor antivibration support to avoid transmission on chiller metal base-frame

Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise

C. TECHNICAL SOLUTION (1/3)

13Apr 21, 2023

EWAD-AJYNN – OPLN – Technical Solution

70,0 ÷ 73,0 dB(A)

ISO 3744 - @ 1m hemispherical field

OPLN

Compressor sound proof cabinet with aluminium frame, metal panels and high density material inside to absorb acoustic waves

Helicoidal fans with good acoustic performance and no mechanical vibrations

Compressor antivibration support to avoid transmission on chiller metal base-frame

Suction muffler

Fan speed reduction ( 680 RPM ) to attenuate the noise level of the chiller condensing section

Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise

C. TECHNICAL SOLUTION (2/3)

14Apr 21, 2023

EWAD-AJYNN – /Q – Technical Solution

65,0 ÷ 66,0 dB(A)

ISO 3744 - @ 1m hemispherical field

/Q

Compressor sound proof cabinet with aluminium frame, metal panels and high density material inside to absorb acoustic wave

Helicoidal fans with good acoustic performance and no mechanical vibrations

Compressor antivibration support to avoid transmission on chiller metal base-frame

Suction muffler & discharge muffler

Fan speed reduction ( 500 RPM ) to reduce the noise level of the chiller condensing section

Enhanced condensing section of the chiller

Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise

C. TECHNICAL SOLUTION (3/3)

15Apr 21, 2023

EWAD-AJYNN – Unit Operating Limits (Base model)

Envelope of EWAD-AJYNN

-20

-10

0

10

20

30

40

-10 -5 0 5 10 15 20

Leaving water temperature (°C)

Ou

tsid

e A

mb

ien

t T

em

pe

ratu

re (

°C)

Check on rating tables for part load operation of each unit

OPFS

OPLA

D. OPERATING LIMITS (1/3)

16Apr 21, 2023

EWAD-AJYNN/A – Unit Operating Limits

Envelope of EWAD-AJYNN/A

-20

-10

0

10

20

30

40

50

-10 -5 0 5 10 15 20

Leaving Water Temperature (°C)

Ou

tsid

e A

mb

ien

t T

emp

erat

ure

(°C

)

Check on rating tables for part load operation of each unit

Gly

col

app

lica

tio

n

OPFS

OPLA

D. OPERATING LIMITS (2/3)

17Apr 21, 2023

EWAD-AJYNN/H – Unit Operating Limits (High Ambient)

Envelopes of EWAD-AJYNN/H

-20

-10

0

10

20

30

40

50

60

-10 -5 0 5 10 15 20

Leaving Water Temperature (°C)

Ou

tsid

e A

mb

ien

t T

em

pe

ratu

re (

°C)

Check on rating tables for part load operation of each unit

Gly

col a

pp

licat

ion

OPFS

OPLA

D. OPERATING LIMITS (3/3)

18Apr 21, 2023

EWAD-AJYNN – Single Screw Compressor

“ Frame3100 ” single screw compressor

axial balanced loads

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

E. COMPRESSOR FEATURES (1/2)

“ Frame3200 ” single screw compressorsuctioncompressiondischarge

EWAD 190 360 AJYNN

EWAD 380 650 AJYNN

19Apr 21, 2023

EWAD-AJYNN – Single Screw Compressor

Six electrical terminals to allow as standard star-delta (Y-D) compressor start. For low inrush current and reduce starting torque

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

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

E. COMPRESSOR FEATURES (2/2)

20Apr 21, 2023

EWAD-AJYNN – Truly Independent Refrigerant Circuits

EWAD-AJYNN with 2 refrigerant circuits: 2 compressors, 2 expansion valves, 2 condensing sections, 2 evaporating sections in the evaporator’s shell, 2 dry-filters

F. REFRIGERANT CIRCUIT

21Apr 21, 2023

EWAD-AJYNN - DX (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

G. DX SHELL AND TUBE EVAPORATOR

22Apr 21, 2023

Power and control are located in two different sections.

Main switch: only on OFF position, it allows the access to power section.

Control section opening is possible also when power is ON.

EWAD-AJYNN – Electrical Panel FeaturesH. CONTROL & REMOTE CONTROL (1/4)

23Apr 21, 2023

EWAD-AJYNN – 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

H. CONTROL & REMOTE CONTROL (2/4)

24Apr 21, 2023

EWAD-AJYNN – Microprocessor Control “Microtech II C Plus”

High value control functions implemented as standard into the logic

H. CONTROL & REMOTE CONTROL (3/4)

STANDARD SPN

25Apr 21, 2023

EWAD-AJYNN – Microprocessor Control “Microtech II C Plus”H. 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 2.0 (EKPV2J) software; BMS communication capability via Modbus, BacNet & LonWorks protocol Remote communication via modem/GSM (up to 8 chillers with Gateway) Compatibility with Daikin EKCSCII (Chiller Sequencing Control)

26Apr 21, 2023

EWAD-AJYNN – 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.

2355

4000

2400

2234 L

Procedure for extracting machine from the container.

Container Kit Optional

I. UNIT DELIVERY (1/2)

27Apr 21, 2023

Daikin – Unit delivery, moving and lifting

2340÷4940

2÷4 units can be loaded on the same truck.

I. UNIT DELIVERY (2/2)

28Apr 21, 2023

EWAD-AJYNN: OPTIONS SUMMARY (1)

Victaulic on evaporator

Alarm from external device

Rubber type antivibration mounts

Evaporator heater

Main switch

Suction stop valve

Standard options Brine version

Dual setpoint

Star delta compressor starter

Thermal relays compressors

Under/over voltage controller

Condenser Coils Alucoat

Flow switch for evaporator

Setpoint reset and demand limit

29Apr 21, 2023

EWAD-AJYNN: OPTIONS SUMMARY (2)

OPLN5: Low noise

OPGA Gauges

OPCG Coil guards

OPAL Blank Cu/AI coils

OPSN Cu/Sn coils

OPCU Cu/Cu coils

1 Not available for EWAD-AJYNN/Q2 Not available for EWAD-AJYNN/Q

3 Offered as standard for EWAD-AJYNN/Q4 Not available for EWAD-AJYNN/Q and EWAD-AJYNN/H5 Not available for EWAD-AJYNN/Q and EWAD-AJYNN/H

Options on request OPSP¹: Single pump

OPTP¹: Twin pump

OPHP²: High ESP single Pump

OPHT²: High ESP twin Pump

OPTR: Total heat recovery

OPPR: Partial heat recovery

OPFS³: Fan silent

OPLA4: Low ambient

OPPF: Power factor 0.9 OPEX: Electronic Expansion valve /Q: extra low noise

/A: high efficiency /H: high ambiant

Unit types

30Apr 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.

31Apr 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”.

ALUCOAT CONDENSER COILS – Fins are protected by a special acrylic paint with a high resistance to corrosion.

EVAPORATOR ELECTRIC HEATER – Electric heater controlled by a thermostat to protect the evaporator from freezing down -28°C ambient temperature.

1. OPTIONS AS STANDARD (2/2)

32Apr 21, 2023

2. OPTIONS ON REQUEST (1/3)

OPSP: Water circulation pump – The pump is unit mounted. Hydronic kit consists of: one centrifugal pump direct driven, expansion tank, water feed circuit with pressure gauge, safety valve. The pump motor is protected by a circuit breaker installed in control panel. The kit is assembled and wired to the control panel.

OPTP: Two water circulation pumps – The pumps are unit mounted. Hydronic kit consists of: two centrifugal pumps direct driven, expansion tank, water feed circuit with pressure gauge, safety valve, check valves, shut-off valves. The pumps motors are protected by circuit breakers installed in control panel. The kit is assembled and wired to the control panel.

OPTR: 100% Total heat recovery – Produced with shell and tube heat exchangers to produce hot water up to 50÷55° C. The heat exchangers are mounted on the refrigerant circuits parallel to the condenser coils to remove all the condensation heat.

33Apr 21, 2023

2. OPTIONS ON REQUEST (2/3)

OPPR: Partial heat recovery – Produced with plate-to-plate heat exchangers installed between the compressor discharge and the condenser coil. These allow hot water to be produced up to a maximum temperature of 55°C.

OPFS device: Fan silent – This device allows the continuous variation of the fan speed, modifying the air flow according to the external temperature conditions. It allows the unit working with air temperature down to –5÷–10°C. In addition, a microprocessor clock switches the fan at low speed according to the client setting (i.e. Night & Day).

OPLA: Low ambient – Continuous fan speed modulation on the first fan of each circuit. It allows the unit working with air temperature down to –18°C.

OPPF: Power factor 0.9 – Capacitor power factor correction - Installed on the electrical control panel to ensure it conforms to the plant rules.

34Apr 21, 2023

OPEX: 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

OPCG: Coil guards – Metal protection guards fixed on all the external surface of the condenser coils.

OPCU – To give better protection against corrosion by aggressive environments.

OPSN (new option) – To give better protection against corrosion in aggressive environments and by salty air.

2. OPTIONS ON REQUEST (3/3)

35Apr 21, 2023

Engineered for flexibility and performance.™