1. EWAP-MBYNN
Air-cooled
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2. EWAP-MBYNN Air-cooled Contents A. Equipment Overview B. Capacity Range
C Operation Range
D. Specifications
E. Construction
F. Options & Kits
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3. Single Circuit (1 Compressor) Double Circuit (2 Compressors)
A. Equipment Overview
EWAP MBYNN
EWAP MBYNN
EWAP MBYNN
Single Circuit (1 Compressor)
Double Circuit (2 Compressors)
Large Chillers: R-407C
Daikin stepless single screw compressor
All components optimized for use with R-407C
Air heat exchanger: Cross fin coils / Hi-X tubes and PE waffle louvre fins
Water heat exchanger: Brazed plate evaporator
Double refrigeration circuit (from 400kW)
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4. EWAP-MBYNN B. Capacity Range Model 110 140 160 200 280 340 400 460 540kW HP
Single circuit
(1 compressor)
Double circuit
(2 compressors)
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5. LWE to -10°C Low Ambient to -15°C
C. Operation Range
Ambient (°C ) 50
LWE to °C 43 40 39 36 30 20
Continuous
Operation Area
Pull-Down
Area 10
On special request
Protect against freezing by:
Evaporator heater tape (std)
Glycol
Low Ambient to -15°C
The air-cooled chillers operate from ambient temperatures as low as -15°C to +43°C. Units are fitted standard with head pressure control to deal with low ambient. Above 43Deg C high pressure setback prevents the unit tripping on high pressure so ensuring cooling.
On the water side, chilled water from 16oC down to -10°C can be produced. The dual setpoint facility can be used to ones advantage by producing chilled water during the day, while making ice for storage during the evening off peak billing period.
An evaporator heater tape protects the unit against freezing, however in severe ambients or negative leaving water applications a % of glycol needs to be added.
-10
-15
-20
Glycol
Water
LWE (°C)
-30 -5 4 16 26
-20
-10 10 20 30
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6. Single Screw Compressor
D. Specifications
Brazed Plate
Heat Exchanger
Daikin Stepless
Single Screw Compressor
pCO2 Control Platform
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7. D. Specifications -> Refrigerant
EWAP~MBY
Zeotropic Blend R32-R125-R134a
Chlorine free
Not toxic
Not flammable
Good and efficient refrigerating capacity
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8. 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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9. 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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10. 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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11. 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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12. 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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13. D. Specifications -> Evaporator Hydronics
To secure the safety of YOUR installation + EASY INSTALLATION
Filter
Semi
Full
Flow Switch
* NOTE:
Only for EWAP MBYNN
Standard Mounting *
Perforation diameter = 1mm
Filter to Daikin Spec (free supplied)
Victaulic Joints (free supplied)
Flow switch (factory pre-mounted)
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14. 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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15. D. Specifications -> Evaporator Heater
Standard with
Evaporator
Heater Tape
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16. 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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17. 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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18. 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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19. 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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20. 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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21. 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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22. 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
Slave 1
Pump Master runs always.
SL1
Inverter pump
Master M1
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23. 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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24. E. Construction -> Condenser
Cross fin coils
(Aluminum)
Lubricant layer
Hydrophilic layer
Colouring & Corrosion proof
Corrosion proof layer
Standard anti-corrosion treated
As standard, all air-cooled condensers are given anti-corrosion treatment. Depending on the capacities and models, the Daikin chillers are undergoing acrylic, black-epoxy or chromate treatment.
This treatment significantly increases resistance to acid rain and saline corrosion. Typically in an acetic salt spray test at 1000hrs a bare aluminium coil has a 7,5% mass loss whereas the acrylic coated coil has about 4% mass loss. After a 1000hrs corrosion of the bare Al coil is accelerated.
On request, Daikin can also provide extra corrosion protection options for special applications in harsh environmental conditions.
Acetic Salt Spray Test in accordance with ISO9227
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25. High Quality Platework!
E. Construction -> Robust Chassis
All-Weather Urban and
Industrial Environment
PE Condenser Coils
( “Blue color” )
High Quality Platework!
Galvanized steel plate
Zinc-Phosphate coating
Epoxy powder painted)
COLOR  Ivory white (Munsell code 5Y7.5/1)
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26. E. Construction -> EWAP110-160MBY
Single Circuit
2 V-Shape PE
Condensers
2250
Daikin Controller
+ cover
Plate Heat
Evaporator
(Back Side)
Daikin Single Screw
Compressor
+ Housing
2238
2346
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27. E. Construction -> EWAP200-340MBY
Single Circuit
4 V-Shape Chromate Treated
Condensers
2250
Plate Heat
Evaporator
(Back Side)
Daikin Single Screw
Compressor + Housing
4280
2238
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28. High Reliability !!! E. Construction -> EWAP400-540MBY
Double Circuit
6 V-Shape Chromate Treated
Condensers
2250
Daikin Single Screw
Compressor
+ Housing
2 x Plate Heat
Evaporator
(Inside)
5901
Daikin Single Screw
Compressor
+ Housing
2238
High Reliability !!!
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29. E. Construction -> Switchbox
Automatic Door Lock
Spacious / Easy accessible
Switch Box
Space
Space
Field Wiring
 Spacious
 Ergonomic Height
 High Quality Components
* EWAP MBYNN
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30. E. Construction -> Serviceability
Easy Maintenance
3000
Required Space for
Service and Air Intake
1000
1000
1000
500*
1000*
Same Specs for complete Range
*Only Range
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31. F. Options & Kits -> Factory Fitted
Low Noise Operation OPLN
Inverter Fans OPIF
High ESP Fans OPHF
Dual Pressure Relief Valve OP03
Suction Stop Valve OP12
Mains Isolator Switch OP52
Ammeter Voltmeter OP57
Condenser Protection OPCG
Heat Recovery (See EWTP unit) OPHR
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32. F. Options & Kits -> Low Noise (OPLN)
Insulated compressor compartment +
Reduce fan speed
900 to 600rpm
High performance absorption & insulation material
Anti vibration material. =
Sound power level reduction of
- 6 dB(A)
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33. Offered with or without OPLN
F. Options & Kits -> Inverter Fans (OPIF)
- Smooth operation, better colour of sound
- Linear sound reduction in function of ambient
Sound reduction in function of ambient temperature 15 20 25 30 35 40 -1 -2 -3 -4
Sound power level (dBA)
Ambient temp. (°C)
Further Reduction of
- 3dBa
Offered with or without OPLN
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34. Example: EWAP540 @ 5oC ambient Result = 15kWhr Energy Saving!
F. Options & Kits -> Inverter Fans (OPIF)
Stable HP control, better part load efficiency
Energy savings at ambient 10oC to -15oC
Example: 5oC ambient
On/Off Fan HP control
Cycling of fans On and Off
Requires dead band
Avg Tcondensing = 39oC
ON/OFF
Inverter Fan HP control
Stepless modulation of fan speed
No dead band
Target Tcondensing = 30oC
Inverter
Result = 15kWhr Energy Saving!
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35. F. Options & Kits -> High ESP Fans (OPHF)
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36. 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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37. V A F. Options & Kits -> For Service OP57 Ammeter / Voltmeter
Compressor 1
Compressor 2
OP52 Mains Isolator Switch
L1, L2, L3
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38. F. Options & Kits -> Protection Grilles (OPCG)
Factory Mounted Condenser Protection Grilles
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39. F. Options & Kits -> Heat Recovery (OPHR)
Cooling
Load
400C
450C
120C
70C
Heating
Return
Supply
COP>5
Criteria
Hot water demand must be great enough to justify cost
High enough useful waste heat temperature
* See EWTP~MBYNN presentation
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40. F. Options & Kits -> Field Installed
Remote Controller EKRUPC
BMS
Modbus EKBMSMBA
Bacnet EKBMSBNA
DICN
LWE Sensor EKCLWS
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41. 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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42. 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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43. Large Air-Cooled Chillers EWAP110~540MBY
1. R-407C: the good choice !
2. High specifications
3. High Quality Components
4. Useful Options
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