EWAD 190-360 AJYNN. 2 14-Aug-15 Air Cooled Chiller - Cooling Only 177 kW ÷ 401 kW Single Screw Compressor EWAD 190-360 AJYNN

EWAD190-360AJYNN

2Apr 19, 2023

Air Cooled Chiller - Cooling Only

177 kW ÷ 401 kW

Single Screw Compressor

EWAD190-360AJYNN

3Apr 19, 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. Competitors comparisons

1. EWAD-AJYNN Vs CARRIER 30GX Phase III

2. EWAD-AJYNN Vs CARRIER 30RB AquaSnap

3. EWAD-AJYNN Vs CARRIER 30XA AquaForce

4. EWAD-AJYNN Vs TRANE RTAD

5. EWAD-AJYNN Vs CLIMAVENETA FOCS

6. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”

K. Options on request

4Apr 19, 2023

EWAD-AJYNN Flexibility

BASE MODEL

3 noise versions available:OPRN75,0÷77,5 dB(A)OPLN70,0÷72,5 dB(A)VERSION /Q65,0 dB(A)

VERSION /A

2 noise versions available:BASE MODEL77,5÷80,0 dB(A)VERSION /Q72,5÷74,0 dB(A)

VERSION /H

1 noise version available:BASE MODEL79,5÷80,0 dB(A)

A. EWAD-AJYNN RANGE

LINK BACK

5Apr 19, 2023

EWAD-AJYNN: Unit efficiency level

190

200

230260

280300

320

340

360

260280

320340

360 380 420

190

200230 260 280 300

320340

400

2.20

2.40

2.60

2.80

3.00

3.20

3.40

150 200 250 300 350 400 450

kW

EE

R

EWAD-AJYNN

EWAD-AJYNN/A

EWAD-AJYNN/H

B. UNIT POSITION INTO THE RANGE (1/4)

6Apr 19, 2023

EWAD-AJYNN BASE MODEL / HIGH EFFICIENCY: cooling range

150 200 250 300 350 400 450

EWAD-AJYNN/H

EWAD-AJYNN/A + OPLN

EWAD-AJYNN/A

EWAD-AJYNN/Q

EWAD-AJYNN + OPLN

EWAD-AJYNN

kW cooling @ Evap. 12/7°C - 35°C OAT

2 Compressors

2 Compressors

2 Compressors

2 Compressors

2 Compressors

2 Compressors


7Apr 19, 2023

EWAD-AJYNN: sizes distribution

203 231 253 271 286 299 309

177 190 219 238 252 265 278 312 366

184 198 225 245 261 275 298 321 370

150 200 250 300 350 400

kW

EWAD-AJYNN/Q EWAD-AJYNN + OPLN EWAD-AJYNN


8Apr 19, 2023

EWAD-AJYNN/A: sizes distribution

208 234 256 274 289 306 336 381

243 272 296 322 345 370 394

247 275 302 327 351 376 401

195

150 200 250 300 350 400 450

kW

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


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9Apr 19, 2023

EWAD-AJYNN – Base model/OPRN - Technical solution

EWAD-AJYNN/A 77,5 ÷ 80,0 dB(A)

EWAD-AJYNN 75,0 ÷ 77,5 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)

10Apr 19, 2023

EWAD-AJYNN – OPLN – Technical Solution

70,0 ÷ 74,0 dB(A)


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


Suction muffler

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


LINK BACK OTPIONS SUMMARY


11Apr 19, 2023

EWAD-AJYNN – /Q – Technical Solution

65,0 dB(A)


/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


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



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12Apr 19, 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)

13Apr 19, 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

)


Gly

col

app

lica

tio

n

OPFS

OPLA


14Apr 19, 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)


Gly

col a

pp

licat

ion

OPFS

OPLA


LINK BACK

15Apr 19, 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)

16Apr 19, 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

Frame 3100

E. COMPRESSOR FEATURES (2/2)

LINK BACK

17Apr 19, 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

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18Apr 19, 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 hummer” phenomena damage

copper tube internally enhanced

G. DX SHELL AND TUBE EVAPORATOR

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19Apr 19, 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)

20Apr 19, 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)

21Apr 19, 2023


High value control functions implemented as standard into the logic

LINK BACK OPTION SUMMARY


22Apr 19, 2023


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

LINK BACK OPTIONS SUMMARY


LINK BACK TABLE OF CONTENT

23Apr 19, 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)

24Apr 19, 2023

Daikin – Unit delivery, moving and lifting

2240÷4040

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

I. UNIT DELIVERY (2/2)

LINK BACK

25Apr 19, 2023

EWAD-AJYNN: OPTIONS SUMMARY (1)

– Alarm from external device

– Rubber type antivibration mounts

– Evaporator heater (OP10)

– Main switch (OP52)

– Epoxy coating (OPEP)

– Suction stop valve (OP12)

• Standard options

– Brine version (OPZH;OPZL)

– Double setpoint

– Star delta compressor starter

– Thermal relays compressors

– Under/over voltage controller

– Cond. Coils Alucoat

– Flow switch for evaporator

– Setpoint reset and demand limit

26Apr 19, 2023

EWAD-AJYNN: OPTIONS SUMMARY (2)

– Low noise (OPLN)5

– Gauges (OPGA)

– Coil guards (OPCG)

– Blank Cu/AI coils (OPAL)

– Cu/Sn coils (OPSN)

– Cu/Cu coils (OPCU)

1 Not available for EWAD-AJYNN/Q2 Not available for EWAD800-850BJYNN/Q and EWAD850-900BJYNN/H3 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– Single & Twin pump (OPSP;OPTP)¹

– High ESP single and twin Pump (OPHP;OPHT)²

– Heat recovery (OPTR;OPPR)

– Fan silent (OPFS)³

– Low ambient (OPLA)4

– Power factor 0.9 (OPPF)

– Electronic Expansion valve (OPEX)

27Apr 19, 2023

1. OPTIONS AS STANDARD (1/2)

OP12 - 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 the customer).

COMPRESSOR THERMAL OVER RELAYS – Safety devices against compressor motor overloading in addition to the normal protection envisaged by the electrical windings.

Link back options summary

28Apr 19, 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 CONDENSING COILS – Fins are protected by a special acrylic paint with a high resistance to corrosion.

OP10 – 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)


29Apr 19, 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 – 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.


30Apr 19, 2023


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.


31Apr 19, 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.



32Apr 19, 2023

COMPETITORS COMPARISONS

LINK BACK

33Apr 19, 2023

A. EWAD-AJYNN Vs CARRIER 30GX Phase III

with R134a

with R134a

Vs

34Apr 19, 2023

30 GX has 16 sizes in range 280 – 1200 kW (Eurovent certified)

30GX is equipped with old Carlyle double screw compressor

1. Noisy gear transmission

2. Only available with steps cooling capacity regulation (3 steps)

30 GX has only one efficiency level available with EER 2.7÷2.9

EWAD-AJYNN


35Apr 19, 2023

4 noise versions: standard - compressor enclosure - field installed kit - opt15LS

Note (1): option 15LS includes compressor & evaporator enclosure + field installed absorbing kit

Note (2): subtract 20 dB(A) to quickly have sound pressure indication @ 1m

Filed installed acoustic kit (louvers wall) Unit weight increases: - 500kg for 082- 900kg for 182- 1300kg for 358

Maintenance activities are affected

Field acoustic reliability ?


36Apr 19, 2023

EWAD-AJYNN strength point Vs CARRIER 30GX Phase III

1. Infinitely variable cooling capacity control down to 12,5% of nominal chiller cooling load to exactly match plant thermal load and respect chilled water temperature set-point within ±0,2 K;

2. Much more flexibility on noise version availability to match customers orsite installation requirement;

3. All EWAD-AJYNN + OPRN obtained without heavy and large field-installed acoustic solution; EWAD-AJYNN/Q not reachable by Carrier.

4. With EWAD-AJYNN/A, /A is possible to reach higher EER value for energy saving and energy management cost saving;

5. Single screw reliability is naturally higher than double-screw, gear driven.

LINK BACK


37Apr 19, 2023

with R410A

with R134a

B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap

Vs

38Apr 19, 2023

30 RB has 12 sizes in range 250 – 750 kW (Eurovent certified)

EWAD-AJYNN


39Apr 19, 2023

4x 8x 12x

30 RB is equipped with R410A Danfoss-Maneurop scroll compressors

98 104 121 128 147 151 169 191 218 240 265 288Total power input

30 RB has only one efficiency level available with EER 2.6 ÷ 2.75


40Apr 19, 2023

3 noise versions: standard – Euro Pack (scroll enclosure) – Very Low noise

Note (1): very low noise version is equipped with compressors sound enclosure and with low speed helicoidal fans

30 RB is equipped with integrated and complete hydronic module (option)

1. Centrifugal low or high pressure water pumps

2. Single or dual “in-line” pump/s

3. Water filter, pressure gauge, thermal insulation

4. Expansion tanks with high capacity

5. Water flow control valve (18 control turn)

Note (2): subtract 20 dB(A) to quickly have sound pressure indication @ 1m


41Apr 19, 2023

30 RB options available on Carrier price list (some of them…)

DX free cooling system scheme


42Apr 19, 2023

EWAD-AJYNN strength point Vs CARRIER 30RB AquaSnap


2. Truly compressor semi-hermetic design to facilitate ordinary chillermaintenance: hermetic scroll compressors cannot be inspected, maintained and serviced. In case of motor burnout replacement of all compressorsinstalled on that refrigerant circuit is needed

3. Much more flexibility on noise version availability to match customers orsite installation requirement; EWAD-AYNN/Q not reachable by Carrier.


5. EWAD-AJYNN have really independent refrigerant circuits with one compressor per circuit: AquaSnap is equipped even with 4 scroll on same circuit !!

6. Single screw with R134a reliability Vs scroll technology with R410A in aircooled application (very high condensing pressure values)

7. Higher part load efficiency for multiscroll ? Let’s talk about that…

LINK BACK


43Apr 19, 2023

EWAD-AJYNN strength point Vs CARRIER 30RB AquaSnap


2. Truly compressor semi-hermetic design to facilitate ordinary chillermaintenance: hermetic scroll compressors cannot be inspected, maintained and serviced. In case of motor burnout replacement of all compressorsinstalled on that refrigerant circuit is needed

3. Much more flexibility on noise version availability to match customers orsite installation requirement; EWAD-AYNN/Q not reachable by Carrier.


5. EWAD-AJYNN have really independent refrigerant circuits with one compressor per circuit: AquaSnap is equipped even with 4 scroll on same circuit !!

6. Single screw with R134a reliability Vs scroll technology with R410A in aircooled application (very high condensing pressure values)

7. Higher part load efficiency for multiscroll ? Let’s talk about that…LINK BACK


44Apr 19, 2023

with R134a

with R134a

C. EWAD-AJYNN Vs CARRIER 30XA AquaForce

Vs

45Apr 19, 2023

30 XA has 20 sizes in range 260 – 1670 kW (Eurovent certified)

30 XA is equipped with new Carrier double screw compressor

1. Double screw with step less cooling capacity control

2. Direct driven screw compressor (no more gear transmission)

3. External oil separator

4. Compressor on slide rails to facilitate maintenance activities

EWAD-AJYNN


46Apr 19, 2023

30 XA is equipped with new condensing coil design (MCHX solution)

1. Aluminium micro-channel heat exchanger coils (MCHX)

2. Three times higher corrosion resistance than copper/aluminium coils because no “galvanic currents” effect (30XA Carrier brochure)

3. V coil shape


47Apr 19, 2023

30 XA has 2 efficiency versions: standard and high efficiency (option 119)

EER 2,7 ÷ 3,1 EER 3,1 ÷ 3,3


48Apr 19, 2023

30 XA maximum start-up current: Y-D starter as standard on all AquaForce units


49Apr 19, 2023

30 XA has 2 sound levels: low noise unit (std efficiency) – high efficiency unit

30 XA has integrated hydronic kit for range capacity 270 ÷ 500kW

Victaulic screen filter - expansion tank - single or dual pump water flow control valve - defrost heater

Note : subtract 20 dB(A) to quickly have pressure indication @ 1m


50Apr 19, 2023

EWAD-AJYNN strength point Vs CARRIER 30XA AquaForce

1. Truly compressor semi-hermetic design to facilitate ordinary chillermaintenance;

2. Much more flexibility on noise version availability to match customers orsite installation requirement; EWAD-AJYNN/Q not reachable by Carrier;

3. Carrier 30XA dimensions are bigger.

LINK BACK


51Apr 19, 2023

D. EWAD-AJYNN Vs TRANE RTAD

with R134a

with R134a

Vs

52Apr 19, 2023

RTAD has 8 sizes in range 250 – 650 kW (Eurovent certified)

RTAD 085RTAD 100RTAD 115RTAD 125RTAD 145RTAD 150RTAD 165RTAD 180

Rating @ Evap. 12/7 °C - OAT 35°C

RTAD has 2 efficiency versions: Standard (STD) - High (HE)

1) TRANE RTAD standard efficiency: 2,57 ÷ 2,76

2) TRANE RTAD high efficiency: 2,77 ÷ 3,09


53Apr 19, 2023

RTAD has 2 noise versions: standard - low noise (LN)

1) TRANE standard noise level: 97 ÷ 103 dB(A) sound power level

2) TRANE low noise level: 92 ÷ 96 dB(A) sound power level

- TRANE Night Noise Setback (option): 90 ÷ 95 dB(A) sound power level

Note: subtract 20 dB(A) to quickly have pressure indication @ 1m

RTAD is equipped with TRANE double screw compressors

1. Double screw with step less cooling capacity control

2. Compressor step less control only down to 40%, then step down to 30% that is minimum compressor load

3. Direct driven screw compressor

4. External oil separator

5. External oil cooling system (some copper tubes at the coil bottom)


54Apr 19, 2023

EWAD-AJYNN strength points Vs TRANE RTAD

1. Infinitely variable cooling capacity control down to 12,5% of nominal chiller cooling load to exactly match plant thermal load and respect chilled water temperature set-point within ±0,2 K;Trane can follow plant load request down to 20% with 2 compressors;

2. Truly compressor semi-hermetic design to facilitate ordinary chillermaintenance; In case of problem with compressor Trane advices to change entirely it;

3. Much more flexibility on noise version availability to match customers orsite installation requirement; EWAD-AJYNN/Q not reachable by Trane;

4. Single screw reliability is naturally higher than double-screw one;

5. Trane RTAD high efficiency version is not EWAD-AJYNN/A

LINK BACK


55Apr 19, 2023

E. EWAD-AJYNN Vs CLIMAVENETA FOCS

with R134a

with R134a

Vs

56Apr 19, 2023

FOCS has 25 sizes in range 290 ÷ 1740 kW

EWAD-AJYNN


57Apr 19, 2023

FOCS has 2 efficiency versions: standard efficiency – high efficiency

1) FOCS models are standard efficiency: EER 2,7 ÷ 3,0

2) FOCS-CA models are high efficiency: EER 3,1 ÷ 3,26

FOCS-CA table of performancesFOCS-CA cooling range 310 ÷ 1380 kW


58Apr 19, 2023

FOCS has 3 noise versions: B – LN – SL

1) FOCS B (standard noise) level: 97 ÷ 99 dB(A) sound power level

2) FOCS LN (low noise) level: 92 ÷ 93 dB(A) sound power level- compressors enclosure- fan speed reduction

3) FOCS SL (super low noise) level: 85 ÷ 89 dB(A) sound power level- compressor enclosure- fans speed reduction- oversized condensing section- muffler on compressor discharge lineNote : subtract 20 dB(A) to quickly have

sound pressure indication @ 1m


59Apr 19, 2023

FOCS and FOCS-CA models are equipped with Bitzer compressors

1. Double screw by Bitzer

2. Step cooling capacity control as standard (step less is available as option)


4. Integrated oil separator

5. Y-D starter as standard thanks 6 motor terminal power connections

Integrated oil separator

Double screw profiles

Rolling bearings


60Apr 19, 2023

EWAD-AJYNN strength points Vs CLIMAVENETA FOCS & FOCS-CA

1. Infinitely variable cooling capacity control down to 12,5% of nominal chiller cooling load to exactly match plant thermal load and respect chilled water temperature set-point within ±0,2 K;Bitzer compressors have steps regulation as standard;


3. Single screw reliability is naturally higher than double-screw one

LINK BACK


61Apr 19, 2023

F. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”

with R134a

Vs

with R134a

62Apr 19, 2023

FOCS “mini” has 12 sizes in range 140 ÷ 520 kW

* Unit with hydronic kit mounted on unit base frame

- FOCS “mini” has EER in range 2,70 ÷ 3,0

- Sizes 1542 ÷ 2642 are available with shell&tube and with plate to plate evaporator

- Size 0751 ÷ 1301 are equipped with only ONE Bitzer double screw compressor


63Apr 19, 2023

FOCS “mini” has 3 noise versions: B – LN – SL

1) FOCS B (standard noise) level: 94 ÷ 99 dB(A)

2) FOCS LN (low noise) level: 88 ÷ 93 dB(A) - compressors enclosure

- fan speed reduction

3) FOCS SL (super low noise) level: 84 ÷ 89 dB(A) - compressor enclosure- fans speed reduction- oversized condensing section- muffler on compressor discharge line

Note : subtract 20 dB(A) to quickly have pressure sound indication @ 1m


64Apr 19, 2023

FOCS “mini” models are equipped with Bitzer compressors

1. Double screw by Bitzer

2. Step cooling capacity control as standard (step less is available as option)


4. Integrated oil separator

5. Y-D starter as standard thanks 6 motor terminal power connections

Integrated oil separator

Double screw profiles

Rolling bearings


65Apr 19, 2023

EWAD-AJYNN strength points Vs CLIMAVENETA FOCS “mini”

1. Infinitely variable cooling capacity control down to 12,5% of nominal chiller cooling load to exactly match plant thermal load and respect chilled water temperature set-point within ±0.2 K;Bitzer compressors have steps regulation as standard;


3. Single screw reliability is naturally higher than double-screw one

4. Air cooled unit with only one compressor: what about HVAC plant reliability ?

5. Air cooled unit with only one compressor: high minimum chiller load value.In case of steps capacity control minimum chiller load is 33%;Very low efficiency value at minimum load (chiller on-off operation);

6. EWAD-AJYNN/A has higher EER value for energy saving and energymanagement cost saving;

LINK BACK


66Apr 19, 2023

Engineered for flexibility and performance.™

67Apr 19, 2023

Typeface and size: Arial 30

• Level 1: Arial 22 black

– Level 2: Arial 20 black• Level 3: Arial 18 black

– Level 4: Arial 16 black» Level 5: Arial 14 black

• If you are ever unsure about a slide’s layout, reapply the master template and the slide will revert.

– Right click, slide layout, reapply

Select Confidentiality(In Slide Master)

Documents

EWAD 190-360 AJYNN. 2 14-Aug-15 Air Cooled Chiller - Cooling Only 177 kW ÷ 401 kW Single Screw Compressor EWAD 190-360 AJYNN