ewad 650-c18 bjynn
DESCRIPTION
EWAD 650-C18 BJYNN. EWAD 650-C18 BJYNN. Air Cooled Chiller - Cooling Only 538 kW ÷ 1920 kW Single Screw Compressor. TABLE OF CONTENT. EWAD-BJYNN range Unit position into the range Technical solution Operating Limits Compressor features Refrigerant Circuit DX shell & tube evaporator - PowerPoint PPT PresentationTRANSCRIPT
EWAD650-C18BJYNN
2Apr 22, 2023
EWAD650-C18BJYNNAir Cooled Chiller - Cooling Only
538 kW ÷ 1920 kW
Single Screw Compressor
3Apr 22, 2023
TABLE OF CONTENTA. 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 comparisons1. 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
4Apr 22, 2023
EWAD-BJYNN/A
4 EWAD-BJYNN noise versions available:
EWAD-BJYNN
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)
4 EWAD-BJYNN/A noise versions available:
EWAD-BJYNN/A
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)
EWAD-BJYNN Flexibility
EWAD-BJYNN
A. EWAD-BJYNN RANGE
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5Apr 22, 2023
EWAD-BJYNN– Unit efficiency level
C18
C16C15
C14
C13C12
C11
C10
950
900
850750700
650
C21
C20C19
C18
C17
C16
C15
C14
C13C12
C11
C10
950
900850
800
700
650
2.70
2.80
2.90
3.00
3.10
3.20
3.30
3.40
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
kW
EER
EWAD-BJYNN EWAD-BJYNN/A
B. UNIT POSITION INTO THE RANGE (1/5)
6Apr 22, 2023
EWAD-BJYNN: cooling range
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
EWAD-BJYNN/Z
EWAD-BJYNN + OPLN
EWAD-BJYNN + OPRN
EWAD-BJYNN
kW cooling @ Evap. 12/7°C - 35°C OAT
2 compressors
2 compressors
2 compressors
2 compressors
3 compressors
3 compressors
3 compressors
3 compressors
4 compressors
4 compressors
4 compressors
B. UNIT POSITION INTO THE RANGE (2/5)
7Apr 22, 2023
EWAD-BJYNN/A: cooling range
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
EWAD-BJYNN/Z
EWAD-BJYNN/A + OPLN
EWAD-BJYNN/A + OPRN
EWAD-BJYNN/A
kW cooling @ Evap. 12/7°C - 35°C OAT
2 compressors
2 compressors
2 compressors
2 compressors
3 compressors
3 compressors
3 compressors
3 compressors
4 compressors
4 compressors
4 compressors
B. UNIT POSITION INTO THE RANGE (3/5)
8Apr 22, 2023
EWAD-BJYNN: sizes distribution
640 761 886 1057 1166 1322 1641
670 784 945 1062 1175 1296 1457 1553 1735
606 730 868 1116 1296 1457 1553 1735
539 650 759 869 974
17721520
12261109988817700
1016 1116868730606
1016
1062 1175670 784 945
1086
597 709 812 921 1055 1152
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
EWAD-BJYNN EWAD-BJYNN+OPRN
EWAD-BJYNN+OPLN EWAD-BJYNN/Q
B. UNIT POSITION INTO THE RANGE (4/5)
9Apr 22, 2023
EWAD-BJYNN/A: sizes distribution
667 800 903 974 1094 1222 1354 1557 1710 1806 1920
640 769 881 953 1053 1177 1323 1512 1618 1762 1871
640 769 881 953 1053 1177 1323 1512 1618 1762 1871
569 840 953
1430128211771038926855723
140112381135998907822703
703 822 907 998 1135 1238 1401
631
668
914 1013
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
EWAD-BJYNN/A EWAD-BJYNN/A+OPRN
EWAD-BJYNN/A+OPLN EWAD-BJYNN/Z
B. UNIT POSITION INTO THE RANGE (5/5)
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10Apr 22, 2023
EWAD-BJYNN version – Technical Solution
79.0 ÷ 80.0 dB(A) ISO 3744 - @ 1m hemispherical field
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
C. TECHNICAL SOLUTION (1/4)
11Apr 22, 2023
EWAD-BJYNN + OPRN version – Technical Solution
73.5 ÷ 76.5 dB(A) ISO 3744 - @ 1m hemispherical field
EWAD-BJYNN + OPRNHelicoidal 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
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 reduce the noise level of the chiller condensing section
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C. TECHNICAL SOLUTION (2/4)
12Apr 22, 2023
EWAD-BJYNN + OPLN version – Technical Solution
71.5 ÷ 73.0 dB(A) ISO 3744 - @ 1m hemispherical field
EWAD-BJYNN + 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
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 vibrationsFan speed reduction ( 680 RPM ) to attenuate the noise level of the chiller condensing section
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C. TECHNICAL SOLUTION (3/4)
13Apr 22, 2023
EWAD-BJYNN/Q version – Technical Solution
65.0 ÷ 66.5 dB(A) ISO 3744 - @ 1m hemispherical field
EWAD-BJYNN/Q
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
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 vibrationsVery low fan speed value ( 500 RPM ) with fan speed control (phase cut) to reduce the noise level of the chiller condensing section.
Enhanced condensing section of the chiller
C. TECHNICAL SOLUTION (4/4)
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14Apr 22, 2023
EWAD-BJYNN Unit Operating Limits
EWAD-BJYNN OPRN OPLN /QMax ambient temperature (at full load) °C 44 40 40 +40 (1)Min ambient temperature °C +10 (2) +10 (2) +10 (2) -10 (3)Max leaving evaporator water temperature °C 9 9 9 9Min leaving evap. water temp. (without glycol) °C 4 4 4 4Min leaving evap. water temp. (with glycol) °C -8 -8 -8 -8Max evaporator T °C 8 8 8 8Min evaporator T °C 4 4 4 4
Notes:
Unit version
(1) When air temperature is higher then +32°C fan speed control device (EWAD-BJYNN/Q units) sets up speed rotationincreasing cooling capacity and sound pressure level.
(2) When air temperature is lower than +10°C you need the fan speed control device. It allows the unit working with airtemperature down to – 10°C. OPLA allows to reach – 18°C.(3) Fan speed control device is standard furnished on the EWAD-BJYNN/Q units.
D. OPERATING LIMITS (1/2)
15Apr 22, 2023
EWAD-BJYNN/A – Unit Operating Limits
EWAD-BJYNN/A /A+OPRN /A+OPLN /Z
Max ambient temperature (at full load) °C 48 44 44 40Min ambient temperature °C +10 (2) +10 (2) +10 (2) -10 (3)Max leaving evaporator water temperature °C 9 9 9 9Min leaving evap. water temp. (without glycol) °C 4 4 4 4Min leaving evap. water temp. (with glycol) °C -8 -8 -8 -8Max evaporator T °C 8 8 8 8Min evaporator T °C 4 4 4 4
Notes:
Unit version
(1) When air temperature is lower than +10°C you need the fan speed control device. It allows the unit working with airtemperature down to – 10°C. OPLA allows to reach – 18°C.(2) Fan speed control device is standard furnished on the EWAD-BJYNN/Q units.
D. OPERATING LIMITS (2/2)
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16Apr 22, 2023
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 rotorssuctioncompressiondischarge
E. COMPRESSOR FEATURES (1/3)
17Apr 22, 2023
EWAD-BJYNN – Single Screw Compressor
“ Frame4 ”radial balancing axial balancing
Composite material (carbon base composition) to improve compressor reliability and energy performances
Stepless slide valve (oil controlled) to change compressor capacity to match exactly the plant thermal request
better chilled water stability
E. COMPRESSOR FEATURES (2/3)
18Apr 22, 2023
EWAD-BJYNN – Single Screw Compressor
“ Frame4 ”
Six electrical terminals to allow as standard a star-delta (Y-D) compressor start. For low inrush current and reduce starting torque
External high efficiency oil separator mounted on the same compressor metal base frame
Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary
E. COMPRESSOR FEATURES (3/3)
Link backLink back options summary
19Apr 22, 2023
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
E. REFRIGERANT CIRCUITS
20Apr 22, 2023
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
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
E. DRY-EXPANSION SHELL AND TUBE
21Apr 22, 2023
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.
F. CONTROL & REMOTE CONTROL (1/4)
22Apr 22, 2023
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
F. CONTROL & REMOTE CONTROL (2/4)
23Apr 22, 2023
EWAD-BJYNN – Microprocessor Control “Microtech II C Plus”
High value control functions implemented as standard into the logic
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F. CONTROL & REMOTE CONTROL (3/4)
24Apr 22, 2023
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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F. CONTROL & REMOTE CONTROL (4/4)
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25Apr 22, 2023
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.
EWAD-BJYNN – Unit delivery, moving and lifting
I. UNIT DELIVERY (1/2)
26Apr 22, 2023
EWAD-BJYNN with 4 compressors can exceeds dimensions of a standard truck. Could be necessary a “long vehicle”.
Up to 13700 mm
EWAD-BJYNN – Unit delivery, moving and liftingI. UNIT DELIVERY (2/2)
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27Apr 22, 2023
EWAD-BJYNN: OPTIONS SUMMARY (1)• 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– Alarm from external device– Rubber type antivibration mounts– Evaporator heater (OP10)– Main switch (OP52)– Epoxy coating (OPEP)– Electronic Expansion valve (OPEX)
28Apr 22, 2023
EWAD-BJYNN: OPTIONS SUMMARY (2)
– A/V meter (OP57)– Low noise (OPLN)5
– Gauges (OPGA)– Coil guards (OPCG)– Soft starter (OPSS)– Blank Cu/AI coils (OPAL)– Cu/Sn coils (OPSN)– Cu/Cu coils (OPCU)
1 Not available for EWAD14-18BJYNN and EWADC16-C21/A 2 Not available for EWAD800-850BJYNN/Q and EWAD850-900BJYNN/Z3 Not available for EWAD-BJYNN/Q and EWAD-BJYNN/Z4 Not available for EWAD-BJYNN/Q and EWAD-BJYNN/Z5 Not available for EWAD-BJYNN/Q and EWAD-BJYNN/Z
• Options on request– Cu/Ni heat exchanger (OPNI)– Single & Twin pump (OPSP;OPTP)¹– Heat recovery (OPTR;OPPR)– High ESP fans (OPHF)²– Reduced noise (OPRN)³– Fan silent (OPFS)– Low ambient (OPLA)4
– Power factor 0.9 (OPPF)– Suction stop valve (OP12)
29Apr 22, 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.
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30Apr 22, 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
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
1. OPTIONS AS STANDARD (2/2)
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31Apr 22, 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.
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32Apr 22, 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.
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33Apr 22, 2023
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.
2. OPTIONS ON REQUEST (3/3)
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34Apr 22, 2023
COMPETITORS COMPARISONS
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35Apr 22, 2023
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
with R134a
Vs
with R134a
36Apr 22, 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)
EWAD-BJYNN
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
37Apr 22, 2023
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
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
38Apr 22, 2023
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 kitNote (2): subtract 20 dB(A) to quickly have sound pressure indication @ 1m
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
39Apr 22, 2023
Field installed acoustic kit (louvers wall)
Unit weight increases: - 500kg for 082- 900kg for 182- 1300kg for 358
Maintenance activities are affected
Field acoustic reliability ?
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
40Apr 22, 2023
30GX options available on Carrier price list (some of them…)
1. EWAD-BJYNN Vs CARRIER 30GX Phase III
41Apr 22, 2023
EWAD-BJYNN strength point Vs CARRIER 30GX Phase III1. 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 maximumin-rush currents;
3. Much more flexibility on noise version availability to match customers orsite 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 savingand 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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1. EWAD-BJYNN Vs CARRIER 30GX Phase III
42Apr 22, 2023
with R410A
with R134a
Vs
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
43Apr 22, 2023
30 RB has 12 sizes in range 250 – 750 kW (Eurovent certified)
4x 8x 12x
30 RB is equipped with R410A Danfoss-Maneurop scroll compressors
30RB has 2 & 3 circuits: up to 4 scroll compressors on same circuit !!
ALS “F”
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
44Apr 22, 2023
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
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 fansNote (2): subtract 20 dB(A) to quickly have sound pressure indication @ 1m
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
45Apr 22, 2023
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
2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
46Apr 22, 2023
EWAD-BJYNN strength point Vs CARRIER 30RB AquaSnap
1. Infinitely variable cooling capacity control down to 6,2% of nominalchiller cooling load (EWAD-BJYNN with 4 compressors) to exactly match plant thermalload and respect chilled water temperature set-point within ±0,2 K;
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-BJYNN/Z level not reachable by Carrier.
4. With EWAD-BJYNN/A is possible to reach higher EER value for energy savingand energy management cost saving;
5. EWAD-BJYNN has really independent refrigerant circuits with one compressorper circuit: AquaSnap is equipped with even 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…
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2. EWAD-BJYNN Vs CARRIER 30RB AquaSnap
47Apr 22, 2023
with R134a
with R134a
Vs
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
48Apr 22, 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-BJYNN
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
49Apr 22, 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
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
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
50Apr 22, 2023
+
+2x
2x
2x
1x
Note: 2 electrical connection points
Note: 2 electrical connection points
30XA 140230XA 1502
30XA 1702
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
51Apr 22, 2023
30 XA has 2 efficiency versions: standard and high efficiency (option 119)
EER 2,7 ÷ 3,1 EER 3,1 ÷ 3,3
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
52Apr 22, 2023
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
3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
53Apr 22, 2023
EWAD-BJYNN 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-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
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3. EWAD-BJYNN Vs CARRIER 30XA AquaForce
54Apr 22, 2023
4. EWAD-BJYNN Vs TRANE RTAC
with R134a
Vswith R134a
55Apr 22, 2023
RTAC has 13 sizes in range 420 – 1500 kW (Eurovent certified)
Rating @ Evap. 12/7 °C - OAT 35°CTotal
Note: sizes 120 - 130 are not available in standard efficiency configuration
4. EWAD-BJYNN Vs TRANE RTAC
56Apr 22, 2023
RTAC has 2 efficiency version: standard (STD) and high (HE)
TotalRating @ Evap. 12/7 °C - OAT 35°C
4. EWAD-BJYNN Vs TRANE RTAC
57Apr 22, 2023
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
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)
4. EWAD-BJYNN Vs TRANE RTAC
58Apr 22, 2023
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
4. EWAD-BJYNN Vs TRANE RTAC
59Apr 22, 2023
EWAD-BJYNN strength points Vs TRANE RTAC
1. Infinitely variable cooling capacity control down to 6,2% of nominalchiller cooling load (EWAD-BJYNN with 4 compressors) to exactly match plant thermalload 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 it entirely;
3. Much more flexibility on noise version availability to match customers orsite installation requirement; EWAD-BJYNN/Z or /Q level not reachable by Trane.
4. EWAD-BJYNN has really independent refrigerant circuits with one compressorper circuit: RTAC is equipped even with 2 screw on same circuit !
5. Single screw reliability is naturally higher than double-screw one
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4. EWAD-BJYNN Vs TRANE RTAC
60Apr 22, 2023
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
with R134a
Vswith R134a
61Apr 22, 2023
FOCS has 25 sizes in range 290 ÷ 1740 kW
EWAD-BJYNN
EWAD-BJYNN
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
62Apr 22, 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
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
63Apr 22, 2023
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- compressor enclosure- fans speed reduction- oversized condensing section- muffler on compressor discharge lineNote : subtract 20 dB(A) to quickly have
sound pressure indication @ 1m
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
64Apr 22, 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)
3. Direct driven screw compressor
4. Integrated oil separator
5. Y-D starter as standard thanks 6 motor terminal power connections
Integrated oil separator
Double screw profiles
Rolling bearings
5. EWAD-BJYNN Vs CLIMAVENETA FOCS
65Apr 22, 2023
EWAD-BJYNN strength points Vs CLIMAVENETA FOCS and FOCS-CA
1. Infinitely variable cooling capacity control down to 12% of nominalchiller 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 orsite installation requirement; EWAD-BJYNN/Q or /Z level not reachable by Climaveneta.
3. Single screw reliability is naturally higher than double-screw one
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5. EWAD-BJYNN Vs CLIMAVENETA FOCS
66Apr 22, 2023
Engineered for flexibility and performance.™