Transcript Welcome to Daikin Europe N.V.

EWWD170-600DJYNN
EWWD170-600DJYNN
Water Cooled Chiller
166 kW ÷ 604 kW
Single Screw Compressor
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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. EWWD-DJYNN Options summary
1. Options as standard
2. Options on request
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A. UNIT POSITION INTO THE RANGE (1/3)
EWWD-DJYNN: unit efficiency level
4.90
500
190
280
230
4.70
400
550
460
380
4.50
650
320
EER
4.30
4.10
170
210
320
380
420
260
460
500
3.90
300
600
3.70
EWWD-DJYNN
3.50
100
200
300
400
EWWD-DJYNN/A
500
600
700
kW
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A. UNIT POSITION INTO THE RANGE (2/3)
EWWD-DJYNN: cooling range
EWWD-DJYNN/A
EWWD-DJYNN
100
1 Compressor
2 Compressors
1 Compressor
200
2 Compressors
300
400
500
600
700
kW cooling @ Evap. 12/7°C - Cond. 30/35°C
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A. UNIT POSITION INTO THE RANGE (3/3)
EWWD-DJYNN: sizes distribution
186.4 223.3
165.5 201.2
276.5 306.7
252.8280.4
366.3
408.2 443.6
333.9 372.2 402.5
448.3
496
493.7
540.5
603.9
555.7
EWWD-DJYNN
EWWD-DJYNN/A
100
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200
300
400
kW
500
600
700
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B. OPERATING LIMITS
Operating range EWWD-DJYNN
Condenser leaving temperature - °C
55
50
45
40
35
30
25
20
-10
-8
-6
-4
-2
0
2
4
6
8
10
12
14
16
18
Evaporator leaving temperature - °C
Note: the use of glycol is necessary for evaporator leaving water temperature below +3°C
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C. COMPRESSOR FEATURES (1/3)
EWWD-DJYNN – Single Screw Compressor
“ Frame3200 ” single
screw compressor
 axial balanced loads
 radial balanced loads
 2 specular compression cycles
 infinitely variable cooling capacity control
 integrated oil separator
 direct driven screw (no gear)
 6 electrical terminals for Y-D as standard
 fully semi-hermetic design
 composite material on gate rotors
discharge
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compression
suction
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C. COMPRESSOR FEATURES (2/3)
EWWD-DJYNN – Single Screw Compressor
radial balancing
axial balancing
“ Compressor ”
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
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C. COMPRESSOR FEATURES (3/3)
EWWD-DJYNN – Single Screw Compressor
The integral oil separator is bolted to the rear of the
main casing. The impingement type separator is
fitted with a knitted stainless steel mesh element.
Six electrical terminals to allow as standard
a star-delta (Y-D) compressor start
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“ Frame 3100 ”
Fully semi-hermetic design to allow ordinary
maintenance and to replace easily each
component if necessary
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D. REFRIGERANT CIRCUIT
i.e. EWWD-DJYNN one compressor circuit P&I
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E. Dry-eXpansion shell & tube evaporator
1) One pass configuration on refrigerant side (R-134a)
copper tube
internally enhanced
 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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F. CONTROL AND REMOTE CONTROL (1/4)
EWWD-DJYNN – Electrical Panel Features
 Main switch: only on OFF position, it allows the access inside the panel.
 Control keypad and display are located outside on the front door.
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F. CONTROL AND REMOTE CONTROL (2/4)
EWWD-DJYNN – 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 AND REMOTE CONTROL (3/4)
EWWD-DJYNN – Microprocessor Control “Microtech II C Plus”
 High value control functions implemented as standard into the logic
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F. CONTROL AND REMOTE CONTROL (4/4)
EWWD-DJYNN – Microprocessor Control “Microtech II C Plus”
 Easy integration into building automation systems via separate digital
connection for unit start/stop and 4-20 mA signals for chilled water
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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G. UNIT DELIVERY
EWWD-DJYNN – 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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H. EWWD-DJYNN: OPTIONS SUMMARY
• Standard options
• Available options
– Heatpump version
– Power factor 0.9 (OPPF)
– Brine version (OPZH;OPZL)
– A/V meter (OP57)
– Double setpoint
– Soft starter (OPSS)
– Thermal relays compressors
– Cu/Ni heat exchanger
– Under/over voltage controller
– Low noise version (OPLN)
– Victaulic on condenser
– Heat Recovery (OPPR;OPTR
– Flow switch for evaporator
– Option /A available with
EWWD190-650DJYNN/A
– Setpoint reset and demand limit
– Alarm from external device
– Rubber type antivibration mounts
– Main switch (OP52)
– Electronic Expansion valve (OPEX)
– Suction stop valve (OP12)
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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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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”
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).
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).
OP57- Ammeter and voltmeter – Digital meters of unit drawn amperes and voltage
values, installed on the electrical control panel.
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2. OPTIONS ON REQUEST (2/2)
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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