Transcript Welcome to Daikin Europe N.V.

EWWD340-C19CJYNN
EWWD340-C19CJYNN
Water Cooled Chiller
334 kW ÷ 1893 kW
Single Screw Compressor
21-Jul-15
2
TABLE OF CONTENT
A. Unit position into the range
B. Operating Limits
C. Compressor features
D. Refrigerant Circuit
E. Dry-eXpansion shell & tube evaporator
F. Control & remote control
G. Unit delivery
H. Options summary
1. Options as standard
2. Options on request
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A. UNIT POSITION INTO THE RANGE (1/3)
EWWD-CJYNN: unit efficiency level
4.70
550
4.60
C19
950
C15
C18
480
4.50
C14
900
C17
C13
400
C16
C12
800
4.40
EER
C11
750
C10
4.30
4.20
700
340
4.10
4.00
0
200
400
600
800
1000
kW
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1200
1400
1600
1800
2000
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A. UNIT POSITION INTO THE RANGE (2/3)
EWWD-CJYNN: cooling range
1 Compressor
2 Compressors
3 Compressors
4 Compressors
2000
0
500
1000
1500
kW cooling @ Evap. 12/7°C - Cond. 30/35°C
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A. UNIT POSITION INTO THE RANGE (3/3)
EWWD-CJYNN: sizes distribution
334
462
399
0
200
400
666
510
792
735
600
800
934
1074
1139
871
1000
1525 1629
1761
1893
1268 1394
1200
kW
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1205 1331
1400
1600
1800
2000
2200
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B. OPERATING LIMITS
Max evaporator leaving water temperature
Min evaporator leaving water temperature (without glycol)
Min evaporator leaving water temperature (with glycol)
Min evaporator water DT
Max evaporator water DT
Min DT between leaving water evaporator and leav. water condenser
Max DT between leaving water evaporator and leav. water condenser
Min condenser entering water temperature
Max condenser leaving water temperature
Min condenser water DT (1 pass, 2 passes - DT 4÷8 °C)
Max condenser water DT (1 pass, 2 passes - DT 4÷8 °C)
Min condenser water DT (2 passes - DT 8÷15 °C)
Max condenser water DT (2 passes - DT 8÷15 °C)
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°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
15
4
-8
4
8
16
48
15
55
4
8
8
15
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C. COMPRESSOR FEATURES (1/3)
EWWD-CJYNN – 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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C. COMPRESSOR FEATURES (2/3)
EWWD-CJYNN – Single Screw Compressor
radial balancing
better chilled
water stability
axial balancing
Stepless slide valve (oil controlled) to
change compressor capacity to match
exactly the plant thermal request
Composite material (carbon base
composition) to improve compressor
reliability and energy performances
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“ Frame4 ”
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C. COMPRESSOR FEATURES (3/3)
EWWD-CJYNN – Single Screw Compressor
“ Frame4 ”
External high efficiency
(98%) oil separator.
Six electrical terminals to allow as standard
a star-delta (Y-D) compressor start
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Fully semi-hermetic design to allow ordinary
maintenance and to replace easily each
component if necessary
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D. REFRIGERANT CIRCUITS
ST1
WO1
WL1
WH3
OIL
SEPARATOR
COMPRESSOR
WATER OUT
WATER INLET
Y5
CONDENSER
EX8
ELECTRONIC
EXP. VALVE
WATER
INLET
EVAPORATOR
WATER
OUTLET
DRIER FILTER
EX8
ELECTRONIC
EXP. VALVE
EVAPORATOR
HEATER
EX8
ELECTRONIC
EXP. VALVE
Y6
ST2
WL2
i.e. EWWD-CJYNN with 3 refrigerant circuits: 3 compressors, 3 expansion
valves, 3 condensers, 3 evaporating sections in the evaporator’s shell, 3 dry-filters
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E. Dry-eXpansion shell & tube evaporator
copper tube
internally enhanced
1) 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)
EWWD-CJYNN – Electrical Panel Features
 Main switch: only on OFF position, it allows the access inside the panel.
 Control keypad and display are located on the front door.
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F. CONTROL & REMOTE CONTROL (2/4)
EWWD-CJYNN – 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 with 4 rows and 20 characters display and 15 keypad
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F. CONTROL & REMOTE CONTROL (3/4)
EWWD-CJYNN – Microprocessor Control “Microtech II C Plus”
 High value control functions implemented as standard into the logic
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Link back options summary
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F. CONTROL & REMOTE CONTROL (4/4)
EWWD-CJYNN – 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)
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Link back options summary
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G. UNIT DELIVERY
EWWD-CJYNN – 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.
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EWWD-CJYNN: OPTIONS SUMMARY
• Standard options
• Available options
– Heatpump version
– Power factor 0.9 (OPPF)
– Brine version (OPZH;OPZL)
– Suction stop valve (OP12)
– Double setpoint
– A/V meter (OP57)
– Thermal relays compressors
– Soft starter (OPSS)
– Under/over voltage controller
– Cu/Ni heat exchanger
– Victaulic on condenser
– Heat Recovery (OPPR;OPTR)
– Flow switch for evaporator
– Setpoint reset and demand limit
– Alarm from external device
– Rubber type antivibration mounts
– Main switch (OP52)
– Electronic Expansion valve (OPEX)
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1. OPTIONS AS STANDARD (1/2)
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.
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
UNDER/OVER VOLTAGE CONTROLLER – Phase monitor to control the minimum
and maximum voltage value that the user can set.
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1. OPTIONS AS STANDARD (2/2)
RUBBER TYPE ANTIVIBRATION MOUNTS – Supplied separately, these are
positionned under the base of the unit for “floor installation”
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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2. OPTIONS ON REQUEST (1/2)
OPSS Soft start – Electronic starting device to reduce starting current. An overload
protection is included (no need of compressors thermal relays).
OP12 - Suction line shut off valve – Suction shut-off valve
installed on the suction port of the compressor to facilitate
maintenance operation.
OPLN Sound proof cabinet – Made of sheet metal and internally insulated, the sound
proof cabinet is around the compressor/s reach the best performance in noise
reduction.
OPPF- Capacitor power factor correction - Installed on the electrical control panel to
ensure it conforms to the plant rules (Daikin advises maximum 0,9).
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2. OPTIONS ON REQUEST (2/2)
OP57- Ammeter and voltmeter – Digital meters of unit drawn amperes and voltage
values, installed on the electrical control panel.
OPTR – 100% total heat recovery – Produced with tube bundle placed in a single
shell with the water condensers heads are provided with 2 connections for
entering/leaving heat recovery water and 2 separate connections for condensing
water.
OPPR – Partial heat recovery – Produced with plate to plate heat exchangers
installed on discharge side of compressor gas. Yhese allow hot water to be
produced up to a maximu temperature of +50°C
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