1. EWWD-MBYNN EWLD-MBYNN
Water-cooled
EWLD-MBYNN
Condenserless
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2. EWWD-MBYNN EWLD-MBYNN
Water-cooled
EWLD-MBYNN
Condenserless
Contents
A. Equipment Overview
B Capacity Range
C Operation Range
D. Specifications
E. Construction
F. Options & Kits
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3. Double Circuit (2 Compressors)
A. Equipment Overview
Condenserless Unit
EWWD MBYNN
EWLD MBYNN
EWWD MBYNN
EWLD MBYNN
Single Circuit
Double Circuit (2 Compressors)
Large Chillers: R-134a
Daikin stepless single screw compressor
All components optimized for use with R-134a
Water heat exchangers: Brazed Plate Evaporator and Shell & Tube Condensor
Double refrigeration circuit (from 340kW)
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4. B. Capacity Range – EWWD~MBYNN
Model
CC kW HP
Single circuit
(1 compressor)
Double circuit
(2 compressors)
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5. B. Capacity Range – EWLD~MBYNN
Model
CC kW HP
Single circuit
(1 compressor)
Double circuit
(2 compressors)
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6. C. Operation Range – EWWD~MBYNN
For EWWD 240/280/500/520/540
°C LWC 60
For EWWD 120/180/360/440 50
Water-Cooled Range 44 40
Start-up area 30 25 20
Glycol
Water
LWE 15 -4 4 7 16 °C
-10 10 20
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7. C. Operation Range – EWLD~MBYNN
°C TC
For EWLD 240/260/480/500/540 62 60
For EWLD 120/170/340/440 55 50 49
Condenserless Range 40
Start-up area 30 25 20
Glycol
Water
LWE 15 -2 4 7 16 °C
-10 10 20
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8. Single Screw Compressor
D. Specifications
Daikin Stepless
Single Screw Compressor
Brazed Plate
Evaporator
pCO2 Control Platform
Shell & Tube Condenser
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9. D. Specifications -> Refrigerant
EWWD~MBY
Pure Refrigerant -> No Glide
ODP = 0
Chlorine free
Low toxicity
Not flammable
Good and efficient refrigerating capacity
Moderate operating pressures
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10. D. Specifications -> Stepless Compressor
Reliable New compressor:
New features:
Stepless G-type compressor
- Newly designed gate rotors
- High efficient electric motor
- COP increase of 5 to 10%
- Newly designed slide vanes
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11. D. Specifications -> Stepless Compressor
High Efficiency
Engineered plastic gate rotors
Ensuring closer tolerences
Compact Design
Durable & Reliable
Fewer moving parts
Balanced forces = Low bearing loads
Plastic on metal = Low wear
No need for oil pump
1st Service Interval
after hours
Low Vibration & Noise
Plastic on metal = lower noise
Runs at 2900rpm = compressions/min
Smoothed discharge flow = low vibrations
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12. D. Specifications -> Stepless Compressor
Launch of STEPLESS capacity control
(Sales launch: August 2005)
Better partial load control
WHAT YOU WANT IS WHAT YOU GET
More precise control of the temperature
OUTLET CONTROL (± 0.5oC)
Smaller minimum water volume required
 Upto 40% less than stepped chillers
 Less need for buffer tanks
G-type stepless
Higher
Efficiency
Saves the environments resources …
and nevertheless your own resources
Designed, tested and manufactured in Daikin’s own laboratories.
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13. D. Specifications -> Stepless Compressor
Higher
Efficiency
STEPLESS capacity regulation
The compressor has built-in capacity control by 30 – 100%
by stepless slide valve mechanism, and adjustable volumetric ratio
100%
30%
12%
Chiller Load
Demand
Starting position
Single Circuit
100%
15%
12%
Chiller Load
Demand
Starting position
Double Circuit
Designed, tested and manufactured in Daikin’s own laboratories.
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14. D. Specifications -> Evaporator
Brazed plate heat exchangers for evaporator
Filter & Flow switch
High W/m² value for increased efficiency
Optimal refrigerant distribution
Decreased refrigerant charge
Super-
heated
Vapor
&
Liquid
Water
Refrigerant
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15. D. Specifications -> Evaporator Hydronics
To secure the safety of YOUR installation + EASY INSTALLATION
Filter
Flow Switch
Semi Mounted
Perforation diameter = 1mm
Evaporator Filter (free supplied)
Victaulic Joints (free supplied)
Flow switch (factory semi-mounted)
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16. D. Specifications -> Evaporator Hydronics
Victaulic joints:
- Absorb vibration
- Reduce operating sound
- Reduce thermal deflection
- Simplify chiller installation
8° angle guarantees stress free
Leak tight water piping connection
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17. D. Specifications -> Condensor
Shell and Tube condenser __Refrigerant in Shell
Special double sided enhanced tube:
40% size reduction
Reduction in refrigerant charge
Ideal for stable refrigerant R-134a
High W/m² value for increased efficiency
Optimal refrigerant distribution
Condenser
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18. D. Specifications -> pCO2 Controller
The nerve centre of the Chiller System
Benefits for the user ...
- provides detailed information
- accurate control of all functional parameters
- easy menu screen scrolling.
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19. D. Specifications -> pCO2 Controller
Features
Automatic restart after power failure
Control of operating and safety parameters
Schedule timer (4 timer groups)
Advanced freeze-up control
Floating set point according to ambient temperature
Extended alarm history (20 alarms)
5 languages
Time and date information
Daily pump on
Temperature probe fine tuning
Lead-lag of compressors
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20. D. Specifications -> Temperature Control
Inlet / Outlet Control
Floating Setpoint
Alters setpoint in function of ambient or ∆T
Increase setpoint = increase evaporating temp
Sampling of temperatures every 12seconds
Fast (7%) Load-up, Slow Load-up (3%) or No Action depending on deviation
Fast (7%) Load-down, Slow Load-down (3%) or No Action depending on deviation
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21. D. Specifications -> Freeze-up Control
LWE (°C)
Freeze-up Prevention
Unload compressor if LWE drops
1oC below MOW 4 3
2) Freeze-up Protection
Stop compressor if LWE drops
1,5oC below MOW
2,5
Freeze-Up
Safety Setting 1 2
t(min)
STOP
*For Glycol: ZH -6,5°C / ZL -11,5°C
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22. D. Specifications -> Expansion Device
EEV
Greater control over a wider operating range
Superheat kept to a minimum – optimizing evaporator
Can cope with lower head pressures than TEV’s
Pro’s
Energy savings at part load condition
Energy savings at reduced optimum head pressures
TEV on the 110, 180, 360
and 440 kW systems
Operation based on external
Pressure compensation
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23. D. Specifications -> DICN
WHAT?
Combine up to 4 DAIKIN chillers as if they were 1 unit …
FEATURES :
- Entering or Leaving water control
- Running hours balancing between units
- Flexible and efficient pump control
- Features of the individual unit remain
ADVANTAGES:
Comfort cooling :
Process / Industrial cooling :
- Extend the DAIKIN chiller range
- Create a chiller system of
up to 2 MegaWatt ...
- Even more precise & efficient capacity control
- Standby : provide backup in case of alarm
- Cooling available under any conditions
Bigger System Capacity
Increase System Reliability
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24. D. Specifications -> DICN
DICN - System Example 1
Slave 3
“Constant water volume system”
Leaving water control with sensor.
Slave 2
Pump runs if at least 1 unit = ON.
Slave 1
Fixed Speed
Pump
Master
LOAD
EKCLWS
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25. D. Specifications -> DICN
Fixed Speed
Pumps
Slave 3
DICN - System Example 2
“Variable flow water system”
SL3
Slave 2
Entering water control.
SL2
Pump SL1-3 runs if unit = ON
Pump Master runs always.
Slave 1
SL1
Inverter pump
Master M1
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26. D. Specifications -> Safety Devices
Double high pressure switch
Low pressure switch
Freeze-up prevention & protection
Discharge thermal protector
Pressure relief valve on compressor
Compressor motor over current protector
Compressor motor thermal protector
Reverse phase protector
Recycling and guard timer
Digital display controller with electronic temperature control
Emergency Stop HP LP
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27. E. Construction -> Robust Chassis
High Quality Platework!
Galvanized steel plate
Zinc-Phosphate coating
Epoxy powder painted
COLOR  Ivory white = Munsell code 5Y7.5/1
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28. E. Construction -> EWWD120~280
1 014mm
898mm
2 672mm
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29. E. Construction -> EWWD360~540
Single or double circuit have the same footprint
DAIKIN : proposes COMPACT LINE units.
EASY split up in separate modules,
without influence on refrigerant circuit !
EWWD MBYN
EWLD MBYN
split up in 2 modules.
unscrew 6 bolts disconnect 9 wires
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30. E. Construction -> Compact Design
Enter through the roof.
Transport through the basement.
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31. E. Construction -> Serviceability
600
500
600
900
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32. F. Options & Kits -> Factory Fitted
Low Noise Operation OPLN
Dual Pressure Relief Valve OP03
Suction Stop Valve OP12
Mains Isolator Switch OP52
Ammeter Voltmeter OP57
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33. F. Options & Kits -> Low Noise (OPLN)
operation
The casing is completely closed
with sheet metal insulated from the inside
with sound absorbing insulation.
Sound power level reduction of
- 6 dB(A)
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34. Non Return Valve on HP-Side
F. Options & Kits -> For Service
OP03 Dual Pressure Relief
OP12 Suction Stop Valve
Non Return Valve on HP-Side
is Standard
Stop Valve on LP-Side
is an option 1
Pressure Side
HP-Side
Suction Side
LP-Side 2
Re-calibration possible without
refrigerant evacuation
Daikin Single Screw
Compressor
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35. 1 2 V A 1&2 F. Options & Kits -> For Service
OP57 Ammeter / Voltmeter
Unit 2 1
Terminal
FOR
1&2 A V
Compressor 1
Compressor 2
L1, L2, L3
OP52 Mains Isolator Switch
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36. F. Options & Kits -> Field Installed
Remote Controller EKRUPC
BMS
Modbus EKBMSMBA
Bacnet EKBMSBNA
DICN
LWE Sensor EKCLWS
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37. F. Options & Kits -> Remote & BMS
Remote Controller
&
BMS
UNIT
Remote Controller
PCO² - Controller
PCO-controller
EKRUPC
BMS (Building Management System)
EKAC200A
Gateway
RS232/485/422
EKBMSMBA
EKBMSBNA
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38. F. Options & Kits -> BMS
Interface
needed
Question
Answer
Read out :
 Temperatures
 Pressures
 Status
 Alarms...
Write :
 Setpoints
 Remote on/off
 Operation mode
...
Modbus: Max. 16 addresses
BACnet: Max. 8 addresses
Data exchange and communication between the chiller and the BMS is realized by CLICK the principle of “QUESTION” and “ANSWER”.
The BMS sends out a question signal concerning a certain parameter, and the chiller replies with the proper answer.
CLICK
Among the exchanged information, we can find 2 kinds of parameters.
READ ONLY parameters, such as temperatures, pressures, status, alarms.
Then we also have the WRITABLE or CHANGEABLE parameters. These are for instance altering of the setpoints, changing of the operation mode for small chillers, start/stop circuits, …
All together, with a 2 circuit large chiller, you can access up to more than 130 parameters.
Access up to 130 parameters
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39. Unique Concept & Design, excellent installation possibilities!
Large
Water-Cooled
Chillers
EWWD MBYNN
EWLD MBYNN
Unique Concept & Design, excellent installation possibilities!
Applied Systems Sales