Transcript Welcome to Daikin Europe N.V.

EWAD190-360AJYNN
EWAD190-360AJYNN
Air Cooled Chiller - Cooling Only
177 kW ÷ 401 kW
Single Screw Compressor
20-Jul-15
2
TABLE OF CONTENT
A. 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
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3
A. EWAD-AJYNN RANGE
BASE MODEL
3 noise versions available:
OPRN
75,0÷77,5 dB(A)
OPLN
70,0÷72,5 dB(A)
VERSION /Q
65,0 dB(A)
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VERSION /A
2 noise versions available:
BASE MODEL
77,5÷80,0 dB(A)
VERSION /Q
72,5÷74,0 dB(A)
EWAD-AJYNN Flexibility
VERSION /H
1 noise version available:
BASE MODEL
79,5÷80,0 dB(A)
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4
B. UNIT POSITION INTO THE RANGE (1/4)
EWAD-AJYNN: Unit efficiency level
3.40
320
3.20
260
280
340
360
380
420
400
EER
3.00
230
200
2.80
340
300
360
320
230
2.60
260 280
260
340
280
300
190
320
200
EWAD-AJYNN
2.40
EWAD-AJYNN/A
190
2.20
150
EWAD-AJYNN/H
200
250
300
350
400
450
kW
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5
B. UNIT POSITION INTO THE RANGE (2/4)
EWAD-AJYNN BASE MODEL / HIGH EFFICIENCY: cooling range
EWAD-AJYNN
2 Compressors
EWAD-AJYNN + OPLN
2 Compressors
EWAD-AJYNN/Q
2 Compressors
2 Compressors
EWAD-AJYNN/A
EWAD-AJYNN/A + OPLN
2 Compressors
2 Compressors
EWAD-AJYNN/H
150
200
250
300
350
400
450
kW cooling @ Evap. 12/7°C - 35°C OAT
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B. UNIT POSITION INTO THE RANGE (3/4)
EWAD-AJYNN: sizes distribution
EWAD-AJYNN/Q
184
198
177 190
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225
219
203
150
EWAD-AJYNN + OPLN
200
245
238
231
261
275
252 265
253
298
278
271
250
321
370
312
366
286 299 309
300
kW
EWAD-AJYNN
350
400
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B. UNIT POSITION INTO THE RANGE (4/4)
EWAD-AJYNN/A: sizes distribution
EWAD-AJYNN/H
EWAD-AJYNN/A + OPLN
247
243
195
150
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208
200
234
275
272
256
250
302
296
274 289
327
322
306
300
kW
351
345
336
EWAD-AJYNN/A
376
370
401
394
381
350
400
450
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C. TECHNICAL SOLUTION (1/3)
EWAD-AJYNN – Base model/OPRN - Technical solution
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
EWAD-AJYNN/A
77,5 ÷ 80,0 dB(A)
EWAD-AJYNN
75,0 ÷ 77,5 dB(A)
ISO 3744 - @ 1m
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hemispherical field
9
C. TECHNICAL SOLUTION (2/3)
EWAD-AJYNN – OPLN – Technical Solution
OPLN
Helicoidal fans 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
Suction muffler
70,0 ÷ 74,0
dB(A)
ISO 3744 - @ 1m
Fan speed reduction ( 680 RPM ) to attenuate the
noise level of the chiller condensing section
hemispherical field
Compressor sound proof cabinet with aluminium
frame, metal panels and high density material
inside to absorb acoustic waves
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LINK BACK OTPIONS SUMMARY 10
C. TECHNICAL SOLUTION (3/3)
/Q
EWAD-AJYNN – /Q – Technical Solution
Helicoidal fans 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
65,0 dB(A)
Suction muffler
&
discharge muffler
ISO 3744 - @ 1m
hemispherical field
Enhanced condensing
section of the chiller
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Fan speed reduction ( 500 RPM ) to reduce the
noise level of the chiller condensing section
Compressor sound proof cabinet with aluminium
frame, metal panels and high density material
inside to absorb acoustic wave
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11
D. OPERATING LIMITS (1/3)
EWAD-AJYNN – Unit Operating Limits (Base model)
Outside Ambient Temperature (°C)
Envelope of EWAD-AJYNN
Check on rating
tables for part load
operation of each unit
40
30
20
10
0
OPFS
-10
OPLA
-20
-10
-5
0
5
10
15
20
Leaving water temperature (°C)
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D. OPERATING LIMITS (2/3)
EWAD-AJYNN/A – Unit Operating Limits
50
Check on rating tables
for part load operation
of each unit
40
30
20
10
0
Glycol application
Outside Ambient Temperature (°C)
Envelope of EWAD-AJYNN/A
OPFS
-10
-20
-10
OPLA
-5
0
5
10
15
20
Leaving Water Temperature (°C)
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D. OPERATING LIMITS (3/3)
EWAD-AJYNN/H – Unit Operating Limits (High Ambient)
60
Check on rating
tables for part load
operation of each unit
50
40
30
Glycol application
Outside Ambient Temperature (°C)
Envelopes of EWAD-AJYNN/H
20
10
0
OPFS
OPLA
-10
-20
-10
-5
0
5
10
15
20
Leaving Water Temperature (°C)
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LINK BACK
14
E. COMPRESSOR FEATURES (1/2)
EWAD-AJYNN – 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
“ Frame3100 ” single
screw compressor
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 composite material on gate rotors
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E. COMPRESSOR FEATURES (2/2)
EWAD-AJYNN – Single Screw Compressor
Frame 3100
Composite material (carbon base
composition) to improve compressor
reliability and energy performances
Six electrical terminals to allow as standard
star-delta (Y-D) compressor start. For low
inrush current and reduce starting torque
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Stepless slide valve (oil controlled) to
change compressor capacity to match
exactly the plant thermal request
Fully semi-hermetic design to allow ordinary
maintenance and to replace easily each
component if necessary
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F. REFRIGERANT CIRCUIT
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
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17
G. DX SHELL AND TUBE EVAPORATOR
EWAD-AJYNN - DX (Dry-eXpansion) shell & tube evaporator
copper tube
internally enhanced
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
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H. CONTROL & REMOTE CONTROL (1/4)
EWAD-AJYNN – Electrical Panel Features
 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.
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H. CONTROL & REMOTE CONTROL (2/4)
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
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H. CONTROL & REMOTE CONTROL (3/4)
EWAD-AJYNN – Microprocessor Control “Microtech II C Plus”
 High value control functions implemented as standard into the logic
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LINK BACK OPTION SUMMARY
21
H. CONTROL & REMOTE CONTROL (4/4)
EWAD-AJYNN – Microprocessor Control “Microtech II C Plus”
 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 TABLE OF CONTENT
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LINK BACK OPTIONS SUMMARY
22
I. UNIT DELIVERY (1/2)
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.
240
0
Procedure for
extracting machine
from the container.
2355
00
40
Container Kit
Optional
223
4
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L
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I. UNIT DELIVERY (2/2)
Daikin – Unit delivery, moving and lifting
2÷4 units can be loaded on the same truck.
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EWAD-AJYNN: OPTIONS SUMMARY (1)
•
Standard options
– Brine version (OPZH;OPZL)
– Alarm from external device
– Double setpoint
– Rubber type antivibration mounts
– Star delta compressor starter
– Evaporator heater (OP10)
– Thermal relays compressors
– Main switch (OP52)
– Under/over voltage controller
– Epoxy coating (OPEP)
– Cond. Coils Alucoat
– Suction stop valve (OP12)
– Flow switch for evaporator
– Setpoint reset and demand limit
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EWAD-AJYNN: OPTIONS SUMMARY (2)
• Options on request
– Single & Twin pump (OPSP;OPTP)¹
– Low noise (OPLN)5
– High ESP single and twin Pump
(OPHP;OPHT)²
– Gauges (OPGA)
– Coil guards (OPCG)
– Heat recovery (OPTR;OPPR)
– Blank Cu/AI coils (OPAL)
– Fan silent (OPFS)³
– Low ambient (OPLA)4
– Cu/Sn coils (OPSN)
– Power factor 0.9 (OPPF)
– Cu/Cu coils (OPCU)
– Electronic Expansion valve (OPEX)
1
Not available for EWAD-AJYNN/Q
2
Not available for EWAD800-850BJYNN/Q and EWAD850-900BJYNN/H
3
Offered as standard for EWAD-AJYNN/Q
4
Not available for EWAD-AJYNN/Q and EWAD-AJYNN/H
5 Not
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available for EWAD-AJYNN/Q and EWAD-AJYNN/H
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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.
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Link back options summary
27
1. OPTIONS AS STANDARD (2/2)
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
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Link back options summary
28
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.
20-Jul-15
Link back options summary
29
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.
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Link back options summary
30
2. OPTIONS ON REQUEST (3/3)
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.
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Link back options summary
31
COMPETITORS COMPARISONS
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A. EWAD-AJYNN Vs CARRIER 30GX Phase III
with R134a
Vs
with R134a
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33
A. EWAD-AJYNN Vs CARRIER 30GX Phase III
 30 GX has 16 sizes in range 280 – 1200 kW (Eurovent certified)
EWAD-AJYNN
 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
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A. EWAD-AJYNN Vs CARRIER 30GX Phase III
 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
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 Field acoustic
reliability ?
35
A. EWAD-AJYNN Vs CARRIER 30GX Phase III
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 or
site 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.
20-Jul-15
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36
B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
with R134a
Vs
with R410A
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37
B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
 30 RB has 12 sizes in range 250 – 750 kW (Eurovent certified)
EWAD-AJYNN
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B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
 30 RB is equipped with R410A Danfoss-Maneurop scroll compressors
4x
8x
12x
 30 RB has only one efficiency level available with EER 2.6 ÷ 2.75
Total power input
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98
104
121
128
147
151
169
191
218
240
265
288
39
B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
 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
Note (2): subtract 20 dB(A) to quickly have sound pressure indication @ 1m
 30 RB is equipped with integrated and complete hydronic module (option)
20-Jul-15
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)
40
B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
 30 RB options available on Carrier price list (some of them…)
DX free cooling
system scheme
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41
B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
EWAD-AJYNN strength point Vs CARRIER 30RB AquaSnap
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 setpoint within ±0,2 K;
2. Truly compressor semi-hermetic design to facilitate ordinary chiller
maintenance: hermetic scroll compressors cannot be inspected, maintained and
serviced. In case of motor burnout replacement of all compressors
installed on that refrigerant circuit is needed
3. Much more flexibility on noise version availability to match customers or
site installation requirement; EWAD-AYNN/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. 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 air
cooled application (very high condensing pressure values)
7. Higher part load efficiency for multiscroll ? Let’s talk about that…
20-Jul-15
LINK BACK
42
B. EWAD-AJYNN Vs CARRIER 30RB AquaSnap
EWAD-AJYNN strength point Vs CARRIER 30RB AquaSnap
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 setpoint within ±0,2 K;
2. Truly compressor semi-hermetic design to facilitate ordinary chiller
maintenance: hermetic scroll compressors cannot be inspected, maintained and
serviced. In case of motor burnout replacement of all compressors
installed on that refrigerant circuit is needed
3. Much more flexibility on noise version availability to match customers or
site installation requirement; EWAD-AYNN/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. 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 air
cooled application (very high condensing pressure values)
7. Higher part load efficiency for multiscroll ? Let’s talk about that…
20-Jul-15
LINK BACK
43
C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
with R134a
Vs
with R134a
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44
C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
 30 XA has 20 sizes in range 260 – 1670 kW (Eurovent certified)
EWAD-AJYNN
 30 XA is equipped with new Carrier double screw compressor
20-Jul-15
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
45
C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
 30 XA is equipped with new condensing coil design (MCHX solution)
20-Jul-15
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
46
C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
 30 XA has 2 efficiency versions: standard and high efficiency (option 119)
EER 2,7 ÷ 3,1
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EER 3,1 ÷ 3,3
47
C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
 30 XA maximum start-up current: Y-D starter as standard on all AquaForce units
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48
C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
 30 XA has 2 sound levels: low noise unit (std efficiency) – high efficiency unit
Note : subtract 20 dB(A) to quickly have pressure indication @ 1m
 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
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C. EWAD-AJYNN Vs CARRIER 30XA AquaForce
EWAD-AJYNN strength point Vs CARRIER 30XA AquaForce
1. Truly compressor semi-hermetic design to facilitate ordinary chiller
maintenance;
2. Much more flexibility on noise version availability to match customers or
site installation requirement; EWAD-AJYNN/Q not reachable by Carrier;
3. Carrier 30XA dimensions are bigger.
20-Jul-15
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50
D. EWAD-AJYNN Vs TRANE RTAD
with R134a
Vs
with R134a
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51
D. EWAD-AJYNN Vs TRANE RTAD
 RTAD has 8 sizes in range 250 – 650 kW (Eurovent certified)
Rating @ Evap. 12/7 °C - OAT
35°C
RTAD 085
RTAD 100
RTAD 115
RTAD 125
RTAD 145
RTAD 150
RTAD 165
RTAD 180
 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
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52
D. EWAD-AJYNN Vs TRANE RTAD
 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
20-Jul-15
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)
53
D. EWAD-AJYNN Vs TRANE RTAD
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 chiller
maintenance; In case of problem with compressor Trane advices to change
entirely it;
3. Much more flexibility on noise version availability to match customers or
site 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
20-Jul-15
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54
E. EWAD-AJYNN Vs CLIMAVENETA FOCS
with R134a
Vs
with R134a
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55
E. EWAD-AJYNN Vs CLIMAVENETA FOCS
 FOCS has 25 sizes in range 290 ÷ 1740 kW
EWAD-AJYNN
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56
E. EWAD-AJYNN Vs CLIMAVENETA FOCS
 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 performances
FOCS-CA cooling range 310 ÷ 1380 kW
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E. EWAD-AJYNN Vs CLIMAVENETA FOCS
 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
Note : subtract 20 dB(A) to quickly have
sound pressure indication @ 1m
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- compressor enclosure
- fans speed reduction
- oversized condensing section
- muffler on compressor discharge line
58
E. EWAD-AJYNN Vs CLIMAVENETA FOCS
 FOCS and FOCS-CA models are equipped with Bitzer compressors
Double screw
profiles
Integrated oil
separator
1.
Double screw by Bitzer
2.
Step cooling capacity control as standard (step less is
available as option)
3.
Direct driven screw compressor
4.
Integrated oil separator
5.
Y-D starter as standard thanks 6 motor terminal power
connections
Rolling bearings
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E. EWAD-AJYNN Vs CLIMAVENETA FOCS
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;
2. Much more flexibility on noise version availability to match customers or
site installation requirement;
3. Single screw reliability is naturally higher than double-screw one
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60
F. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”
with R134a
Vs
with R134a
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F. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”
 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
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F. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”
 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)
Note : subtract 20 dB(A) to quickly
have pressure sound indication @ 1m
20-Jul-15
- compressor enclosure
- fans speed reduction
- oversized condensing section
- muffler on compressor discharge line
63
F. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”
 FOCS “mini” models are equipped with Bitzer compressors
Double screw
profiles
Integrated oil
separator
1.
Double screw by Bitzer
2.
Step cooling capacity control as standard (step less is
available as option)
3.
Direct driven screw compressor
4.
Integrated oil separator
5.
Y-D starter as standard thanks 6 motor terminal power
connections
Rolling bearings
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F. EWAD-AJYNN Vs CLIMAVENETA FOCS “mini”
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;
2. Much more flexibility on noise version availability to match customers or
site installation requirement;
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 energy
management cost saving;
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Engineered for flexibility and performance.™
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