Transcript Welcome to Daikin Europe N.V.

EWAD650-C18BJYNN
EWAD650-C18BJYNN
Air Cooled Chiller - Cooling Only
538 kW ÷ 1920 kW
Single Screw Compressor
17-Jul-15
2
TABLE OF CONTENT
A. EWAD-BJYNN 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-BJYNN Vs CARRIER 30GX Phase III
2.
EWAD-BJYNN Vs CARRIER 30RB AquaSnap
3.
EWAD-BJYNN Vs CARRIER 30XA AquaForce
4.
EWAD-BJYNN Vs TRANE RTAC
5.
EWAD-BJYNN Vs CLIMAVENETA FOCS
K. Options summary
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3
A. EWAD-BJYNN RANGE
EWAD-BJYNN
EWAD-BJYNN Flexibility
EWAD-BJYNN/A
4 EWAD-BJYNN noise versions
available:
4 EWAD-BJYNN/A noise versions
available:
 EWAD-BJYNN
 EWAD-BJYNN/A
79,0 ÷ 80,0 dB(A)
 EWAD-BJYNN + OPRN
73,5 ÷ 76,5 dB(A)
 EWAD-BJYNN + OPLN
71,5 ÷ 73,0 dB(A)
 EWAD-BJYNN/Q
65,0 ÷ 66,5 dB(A)
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79,0 ÷ 80,0 dB(A)
 EWAD-BJYNN/A + OPRN
73,5 ÷ 76,5 dB(A)
 EWAD-BJYNN/A + OPLN
71,5 ÷ 73,0 dB(A)
 EWAD-BJYNN/Z
65,0 ÷ 66,5 dB(A)
Link back
4
B. UNIT POSITION INTO THE RANGE (1/5)
EWAD-BJYNN– Unit efficiency level
3.40
C17
C10
3.30
950
C21
3.20
3.10
900
C12
C20
C15
C19
850
700
EER
C16
C13
800
C11
650
C18
C14
3.00
900
C18
C14
2.90
C10
700 750
2.80
2.70
500
850
C16
C15
C12
950
650
600
C13
C11
700
800
900
1000
1100
EWAD-BJYNN
1200
1300
1400
1500
1600
EWAD-BJYNN/A
1700
1800
1900
2000
kW
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B. UNIT POSITION INTO THE RANGE (2/5)
EWAD-BJYNN: cooling range
2 compressors
EWAD-BJYNN
EWAD-BJYNN + OPRN
2 compressors
EWAD-BJYNN + OPLN
500
2 compressors
600
700
4 compressors
3 compressors
4 compressors
3 compressors
2 compressors
EWAD-BJYNN/Z
3 compressors
4 compressors
3 compressors
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
kW cooling @ Evap. 12/7°C - 35°C OAT
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6
B. UNIT POSITION INTO THE RANGE (3/5)
EWAD-BJYNN/A: cooling range
2 compressors
EWAD-BJYNN/A
EWAD-BJYNN/A + OPRN
2 compressors
EWAD-BJYNN/A + OPLN
2 compressors
EWAD-BJYNN/Z
3 compressors
4 compressors
3 compressors
4 compressors
3 compressors
4 compressors
2 compressors 3 compressors
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
kW cooling @ Evap. 12/7°C - 35°C OAT
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B. UNIT POSITION INTO THE RANGE (4/5)
EWAD-BJYNN: sizes distribution
640
761
700
606
500
600
945
730
868
730
868
650
597
988
784
759
709
700
812
800
921
900
1520
1641
1772
1175
1296
1457
1553
1735
1296
1457
1553
1735
1116
1016
974
1322
1226
1109
1016
869
1166
1062
945
784
670
539
1057
817
670
606
886
1116
1062
1175
EWAD-BJYNN
1086
1055
1000 1100
1152
EWAD-BJYNN+OPRN
EWAD-BJYNN+OPLN
EWAD-BJYNN/Q
1200 1300 1400 1500 1600 1700 1800 1900 2000
kW cooling @ Evap 12/7°C - 35°C OAT
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B. UNIT POSITION INTO THE RANGE (5/5)
EWAD-BJYNN/A: sizes distribution
667
800
769
703
640
668
569
881 953
822
769
703
1094
1038
855 926
723
640
903 974
907
822
907
840
1053
998
1238
600
700
800
1920
1512
1618
1762
1871
1512
1618
1762
1871
1401
1323
1401
1238
1013
EWAD-BJYNN/A
EWAD-BJYNN/A+OPRN
EWAD-BJYNN/A+OPLN
500
1710 1806
1430
1323
1177
1135
1557
953
914
631
1177
1135
998
1354
1282
1177
1053
881 953
1222
900
1000
1100
1200
1300
1400
1500
1600
EWAD-BJYNN/Z
1700
1800
1900
2000
kW cooling @ Evap 12/7°C - 35°C OAT
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Link back
9
C. TECHNICAL SOLUTION (1/4)
EWAD-BJYNN version – Technical Solution
EWAD-BJYNN
Helicoidal fans (860 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
79.0 ÷ 80.0
dB(A)
ISO 3744 - @ 1m
hemispherical field
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C. TECHNICAL SOLUTION (2/4)
EWAD-BJYNN + OPRN version – Technical Solution
EWAD-BJYNN + OPRN
Helicoidal fans with good acoustic
performance and no mechanical vibrations
Compressor antivibration support to avoid
transmission on chiller metal base-frame
73.5 ÷ 76.5
dB(A)
Rubber round washers to avoid metal to metal
contacts which would increase chiller
structural noise
Discharge flexible pipe to avoid vibrations in
the condensing section of the chiller due to the
gas pulsations and compressor vibrations
ISO 3744 - @ 1m
hemispherical field
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Fan speed reduction ( 680 RPM ) to reduce the
noise level of the chiller condensing section
Link back option summary
11
C. TECHNICAL SOLUTION (3/4)
EWAD-BJYNN + OPLN version – Technical Solution
EWAD-BJYNN + OPLN
Helicoidal fans with good acoustic
performance and no mechanical
vibrations
Compressor antivibration support
to avoid transmission on chiller
metal base-frame
71.5 ÷ 73.0
dB(A)
ISO 3744 - @ 1m
hemispherical field
Compressor sound proof cabinet with
aluminium frame, metal panels and
high density material inside to absorb
acoustic waves
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Rubber round washers to avoid
metal to metal contacts which would
increase chiller structural noise
Discharge flexible pipe to avoid
vibrations in the condensing section
of the chiller due to the gas
pulsations and compressor
vibrations
Fan speed reduction ( 680 RPM ) to
attenuate the noise level of the chiller
condensing section
Link back option summary
12
C. TECHNICAL SOLUTION (4/4)
EWAD-BJYNN/Q
EWAD-BJYNN/Q version – Technical Solution
Helicoidal fans with good acoustic
performance and no mechanical
vibrations
Compressor antivibration support
to avoid transmission on chiller
metal base-frame
65.0 ÷ 66.5 dB(A)
ISO 3744 - @ 1m
hemispherical field
Enhanced condensing
section of the chiller
Compressor sound proof cabinet
with aluminium frame, metal panels
and high density material inside to
absorb acoustic waves
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Rubber round washers to avoid
metal to metal contacts which would
increase chiller structural noise
Discharge flexible pipe to avoid
vibrations in the condensing section
of the chiller due to the gas
pulsations and compressor
vibrations
Very low fan speed value ( 500 RPM )
with fan speed control (phase cut) to
reduce the noise level of the chiller
condensing section.
Link back 13
D. OPERATING LIMITS (1/2)
EWAD-BJYNN Unit Operating Limits
Unit version
Max ambient temperature (at full load)
Min ambient temperature
Max leaving evaporator water temperature
Min leaving evap. water temp. (without glycol)
Min leaving evap. water temp. (with glycol)
Max evaporator DT
Min evaporator DT
EWAD-BJYNN
°C
°C
°C
°C
°C
°C
°C
44
+10 (2)
9
4
-8
8
4
OPRN
40
+10 (2)
9
4
-8
8
4
OPLN
40
+10 (2)
9
4
-8
8
4
/Q
+40 (1)
-10 (3)
9
4
-8
8
4
Notes:
(1) When air temperature is higher then +32°Cfan speed control device (EWAD-BJYNN/Q units) sets up speed rotation
increasing cooling capacity and sound pressure level.
(2) When air temperature is lower than +10°Cyou need the fan speed control device. It allows the unit working with air
temperature down to – 10°C
. OPLA allows to reach –
18°C
.
(3) Fan speed control device is standard furnished on the EWAD-BJYNN/Q units.
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D. OPERATING LIMITS (2/2)
EWAD-BJYNN/A – Unit Operating Limits
Unit version
Max ambient temperature (at full load)
Min ambient temperature
Max leaving evaporator water temperature
Min leaving evap. water temp. (without glycol)
Min leaving evap. water temp. (with glycol)
Max evaporator DT
Min evaporator DT
°C
°C
°C
°C
°C
°C
°C
EWAD-BJYNN/A
/A+OPRN
/A+OPLN
/Z
48
+10 (2)
9
4
-8
8
4
44
+10 (2)
9
4
-8
8
4
44
+10 (2)
9
4
-8
8
4
40
-10 (3)
9
4
-8
8
4
Notes:
(1) When air temperature is lower than +10°Cyou need the fan speed control device. It allows the unit working with air
temperature down to – 10°C
. OPLA allows to reach –
18°C
.
(2) Fan speed control device is standard furnished on the EWAD-BJYNN/Q units.
17-Jul-15
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15
E. COMPRESSOR FEATURES (1/3)
EWAD-BJYNN – Single Screw Compressor
“ Frame4 ” single screw
compressor
 naturally axial balanced loads
 naturally 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
discharge
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compression
suction
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E. COMPRESSOR FEATURES (2/3)
EWAD-BJYNN – Single Screw Compressor
radial balancing
axial balancing
“ Frame4 ”
better chilled
water stability
Composite material (carbon base
composition) to improve compressor
reliability and energy performances
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Stepless slide valve (oil controlled) to
change compressor capacity to match
exactly the plant thermal request
17
E. COMPRESSOR FEATURES (3/3)
EWAD-BJYNN – Single Screw Compressor
External high efficiency oil separator mounted on
the same compressor metal base frame
Six electrical terminals to allow as standard
a star-delta (Y-D) compressor start. For low
inrush current and reduce starting torque
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“ Frame4 ”
Fully semi-hermetic design to allow ordinary
maintenance and to replace easily each
component if necessary
Link back
Link back options summary
18
E. REFRIGERANT CIRCUITS
EWAD-BJYNN – Truly Independent Refrigerant
Circuits
i.e. EWAD-BJYNN with 3 refrigerant circuits: 3 compressors, 3 expansion
valves, 3 condensing sections, 3 evaporating sections in the evaporator’s shell, 3
dry-filters
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E. DRY-EXPANSION SHELL AND TUBE
EWAD-BJYNN - 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
copper tube
internally
enhanced
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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F. CONTROL & REMOTE CONTROL (1/4)
EWAD-BJYNN – 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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F. CONTROL & REMOTE CONTROL (2/4)
EWAD-BJYNN – Microprocessor Control “Microtech II C Plus”
Motherboard with microprocessors
 Unit Controller fully programmed 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
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F. CONTROL & REMOTE CONTROL (3/4)
EWAD-BJYNN – Microprocessor Control “Microtech II C Plus”
 High value control functions implemented as standard into
the logic
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Link back option summary
23
F. CONTROL & REMOTE CONTROL (4/4)
EWAD-BJYNN – 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 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)
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Link back Option summary
Link back Table of content
24
I. UNIT DELIVERY (1/2)
EWAD-BJYNN – Unit delivery, moving and lifting
 Unit is sold and delivered EXW (Ex works);
 Each unit is tested at full load before shipping;
 Unit handling must be according to IOM manual.
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I. UNIT DELIVERY (2/2)
EWAD-BJYNN – Unit delivery, moving and lifting
 EWAD-BJYNN with 4 compressors can exceeds dimensions of a
standard truck.
 Could be necessary a “long vehicle”.
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26
EWAD-BJYNN: OPTIONS SUMMARY (1)
• Standard options
–
–
–
–
–
–
–
–
–
–
–
–
–
–
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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
Alarm from external device
Rubber type antivibration mounts
Evaporator heater (OP10)
Main switch (OP52)
Epoxy coating (OPEP)
Electronic Expansion valve (OPEX)
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EWAD-BJYNN: OPTIONS SUMMARY (2)
• Options on request
– A/V meter (OP57)
– Cu/Ni heat exchanger (OPNI)
– Single & Twin pump (OPSP;OPTP)¹
– Heat recovery (OPTR;OPPR)
– Low noise (OPLN)5
– Gauges (OPGA)
– Coil guards (OPCG)
– High ESP fans (OPHF)²
– Soft starter (OPSS)
– Reduced noise (OPRN)³
– Blank Cu/AI coils (OPAL)
– Fan silent (OPFS)
– Cu/Sn coils (OPSN)
– Low ambient (OPLA)4
– Cu/Cu coils (OPCU)
– Power factor 0.9 (OPPF)
– Suction stop valve (OP12)
1
Not available for EWAD14-18BJYNN and EWADC16-C21/A
2
Not available for EWAD800-850BJYNN/Q and EWAD850-900BJYNN/Z
3
Not available for EWAD-BJYNN/Q and EWAD-BJYNN/Z
4
Not available for EWAD-BJYNN/Q and EWAD-BJYNN/Z
5 Not
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available for EWAD-BJYNN/Q and EWAD-BJYNN/Z
28
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
29
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
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
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Link back options summary
30
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.
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Link back options summary
31
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
32
2. OPTIONS ON REQUEST (3/3)
OP12 - Suction line shut off valve – Suction shut-off valve
installed on the suction port of the compressor to facilitate
maintenance operation.
OPCG – Coil guards - Metal protection guards fixed on all the external surface of
the condenser coils.
OP57- Ammeter and voltmeter – Digital meters of unit drawn amperes and
voltage values, installed on the electrical control panel.
OPSS Soft start – Electronic starting device to reduce starting current. An
overload protection is included (no need of compressors thermal relays).
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
33
COMPETITORS COMPARISONS
17-Jul-15
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34
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
with R134a
Vs
with R134a
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35
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
 30 GX has 16 sizes in range 280 – 1200 kW (Eurovent certified)
EWAD-BJYNN
 30GX is equipped with old Carlyle double screw compressor
17-Jul-15
1.
Noisy gear transmission
2.
Only available with steps cooling capacity
regulation (3 steps)
36
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
 30GX is equipped with flooded evaporator (only 2 refrigerant circuits)
1.
Sizes 207-267 have 3 compressors: 2 compressors on
first refrigerant circuit and 1 on the second circuit
2.
Sizes 298-358 have 4 compressors: 2 compressors per
refrigerant circuit
 30 GX has only one efficiency level available with EER 2.7÷2.9
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1. EWAD-BJYNN Vs CARRIER 30GX Phase III
 30 GX has Y-D starter available as std. up to size 182, D.O.L starter above
 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
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1. EWAD-BJYNN Vs CARRIER 30GX Phase III
 Field installed acoustic kit (louvers wall)
17-Jul-15

Unit weight increases:
- 500kg for 082
- 900kg for 182
- 1300kg for 358

Maintenance activities are
affected

Field acoustic reliability ?
39
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
 30GX options available on Carrier price list (some of them…)
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40
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
EWAD-BJYNN strength point Vs CARRIER 30GX Phase III
1. Infinitely variable cooling capacity control down to 6.2% of nominal
chiller cooling load (EWAD-BJYNN with 4 compressors) to exactly match plant thermal
load and respect chilled water temperature set-point within ±0,2 K;
2. Y-D starter as standard on all Daikin models to minimize maximum
in-rush currents;
3. Much more flexibility on noise version availability to match customers or
site installation requirement; EWAD-BJYNN/Z level not reachable by Carrier.
4. All Daikin OPRN versions obtained without heavy and large field-installed
acoustic solution;
5. With EWAD-BJYNN/A is possible to reach higher EER value for energy saving
and energy management cost saving;
6. EWAD-BJYNN has really independent refrigerant circuits (one compressor per
circuit);
30GX models above 700 kW are equipped with 2 compressors per circuit;
7. Single screw reliability is naturally higher than double-screw, gear driven.
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Link back
41
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
with R134a
Vs
with R410A
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42
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
 30 RB has 12 sizes in range 250 – 750 kW (Eurovent certified)
ALS “F”
 30 RB is equipped with R410A Danfoss-Maneurop scroll compressors
4x
8x
12x
30RB has 2 & 3 circuits: up to 4 scroll compressors on same circuit !!
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2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
 30 RB has only one efficiency level available with EER 2,6 ÷ 2,75
Total power input
98
104
121
128
147
151
169
191
218
240
265
288
 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
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2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
 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)
 30 RB options available on Carrier price list (some of them…)
DX free cooling
system scheme
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45
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
EWAD-BJYNN strength point Vs CARRIER 30RB AquaSnap
1. Infinitely variable cooling capacity control down to 6,2% of nominal
chiller cooling load (EWAD-BJYNN with 4 compressors) to exactly match plant thermal
load and respect chilled water temperature set-point 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-BJYNN/Z level not reachable by Carrier.
4. With EWAD-BJYNN/A is possible to reach higher EER value for energy saving
and energy management cost saving;
5. EWAD-BJYNN has really independent refrigerant circuits with one compressor
per circuit: AquaSnap is equipped with even 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…
17-Jul-15
Link back
46
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
with R134a
Vs
with R134a
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47
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
 30 XA has 20 sizes in range 260 – 1670 kW (Eurovent certified)
EWAD-BJYNN
 30 XA is equipped with new Carrier double screw compressor
17-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
48
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
 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
 30 XA is equipped with flooded evaporator and 2 or 3 or 4 independent circuits
Note: units longer than 12 m (1402-1502-1702) are composed on site with 2 modules available
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49
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
+
2x
Note: 2 electrical
connection points
1x
30XA 1402
30XA 1502
+
2x
17-Jul-15
Note: 2 electrical
connection points
2x
30XA 1702
50
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
 30 XA has 2 efficiency versions: standard and high efficiency (option 119)
EER 2,7 ÷ 3,1
17-Jul-15
EER 3,1 ÷ 3,3
51
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
 30 XA maximum start-up current: Y-D starter as standard on all AquaForce units
 30 XA has 2 sound levels: low noise unit (std efficiency) – high efficiency unit
Note : subtract 20 dB(A) to quickly have sound pressure indication @ 1m
17-Jul-15
52
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
EWAD-BJYNN 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-BJYNN/Q or /Z level not reachable by
Carrier.
3. Single packaged unit with a single power connection point; AquaForce
above 1400 kW are basically two separate machines.
4. Carrier 30XA dimensions are bigger than EWAD-BJYNN on every single
capacity
17-Jul-15
Link back
53
4. EWAD-BJYNN Vs TRANE RTAC
with R134a
Vs
with R134a
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54
4. EWAD-BJYNN Vs TRANE RTAC
 RTAC has 13 sizes in range 420 – 1500 kW (Eurovent certified)
Total
Rating @ Evap. 12/7 °C - OAT
35°C
Note: sizes 120 - 130 are not available in
standard efficiency configuration
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55
4. EWAD-BJYNN Vs TRANE RTAC
 RTAC has 2 efficiency version: standard (STD) and high (HE)
Total
Rating @ Evap. 12/7 °C - OAT
35°C
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56
4. EWAD-BJYNN Vs TRANE RTAC
 RTAC has 2 noise version: standard - low noise (LN)
1) TRANE standard noise level: 99 ÷ 103 dB(A) sound power level
2) TRANE low noise level: 92 ÷ 96 dB(A) sound power level
- TRANE Night Noise Setback (option): 89 ÷ 95 dB(A) sound power level
Note: subtract 20 dB(A) to quickly have sound pressure indication @ 1m
 RTAC is equipped with TRANE double screw compressors
17-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)
57
4. EWAD-BJYNN Vs TRANE RTAC
 RTAC is equipped with flooded evaporator and 2 refrigerant circuits
1.
Sizes 250-300 have 3 compressors: 2
compressors on first refrigerant circuit and 1
on the second circuit
2.
Sizes 350-400 have 4 compressors: 2
compressors per refrigerant circuit
Example: RTAC drawing for 3 compressors model
 RTAC is equipped with Y-D starter as standard
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58
4. EWAD-BJYNN Vs TRANE RTAC
EWAD-BJYNN strength points Vs TRANE RTAC
1. Infinitely variable cooling capacity control down to 6,2% of nominal
chiller cooling load (EWAD-BJYNN with 4 compressors) 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 it entirely;
3. Much more flexibility on noise version availability to match customers or
site installation requirement; EWAD-BJYNN/Z or /Q level not reachable by
Trane.
4. EWAD-BJYNN has really independent refrigerant circuits with one
compressor
per circuit: RTAC is equipped even with 2 screw on same circuit !
5. Single screw reliability is naturally higher than double-screw one
17-Jul-15
Link back
59
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
with R134a
Vs
with R134a
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60
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
 FOCS has 25 sizes in range 290 ÷ 1740 kW
EWAD-BJYNN
EWAD-BJYNN
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61
5. EWAD-BJYNN 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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62
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
 FOCS has 3 noise versions: B – LN – SL
1) FOCS B (standard noise) level: 99 ÷ 105 dB(A) sound power level
2) FOCS LN (low noise) level: 93 ÷ 99 dB(A) sound power level
- compressors enclosure
- fan speed reduction
3) FOCS SL (super low noise) level: 87 ÷ 92 dB(A) sound power level
Note : subtract 20 dB(A) to quickly have
sound pressure indication @ 1m
17-Jul-15
- compressor enclosure
- fans speed reduction
- oversized condensing section
- muffler on compressor discharge line
63
5. EWAD-BJYNN 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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64
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
EWAD-BJYNN strength points Vs CLIMAVENETA FOCS and
FOCS-CA
1. Infinitely variable cooling capacity control down to 12% of nominal
chiller cooling load (EWAD-BJYNN with 2 compressors) 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; EWAD-BJYNN/Q or /Z level not reachable by
Climaveneta.
3. Single screw reliability is naturally higher than double-screw one
17-Jul-15
Link back
65
Engineered for flexibility and performance.™
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66