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EWAD-MBYNN. Air-cooled. EWAD-MBYNN. Air-cooled. Contents. A. Equipment Overview B. Capacity Range C. Operation Range D. Specifications E. Construction F. Options & Kits. Single Circuit. Double Circuit (2 Compressors). A. Equipment Overview . EWAD120-170MBYNN.

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slide1

EWAD-MBYNN

Air-cooled

Applied Systems Sales

slide2

EWAD-MBYNN

Air-cooled

Contents

A. Equipment Overview

B. Capacity Range

C. Operation Range

D. Specifications

E. Construction

F. Options & Kits

Applied Systems Sales

a equipment overview

Single Circuit

Double Circuit (2 Compressors)

A. Equipment Overview

EWAD120-170MBYNN

EWAD240-340MBYNN

EWAD380-600MBY

Large Chillers: R-134a

  • Daikin stepless single screw compressor
  • All components optimized for use with R-134a
  • Air heat exchanger: Cross fin coils / Hi-X tubes and PE waffle louvre fins
  • Water heat exchanger: Shell & Tube
  • Double refrigeration circuit (from 240kW)

Applied Systems Sales

b capacity range

Launch Aug 06

Launch June 06

B. Capacity Range

EWAD-MBYNN

Model 120 150 170 240 300 345 380 460 520 600

kW 111 140 166 211 276 316 372 453 525 605

HP 40 50 60 80 100 120 120+ 160 200 240

Single circuit

(1 compressor)

Double circuit

(2 compressors)

Applied Systems Sales

c operation range
C. Operation Range

°C Ambient temperature

50

LWE to -10°C

43

40

39

33

30

20

Continuous

Operation Area

Pull-Down

Area

10

0

Low Ambient to -15°C

  • Protect against freezing by:
  • Evaporator heater tape (std)
  • Glycol

-10

-15

-20

Glycol

Water

LWE

-30

4

16

26

°C

-20

30

-10

0

10

20

Applied Systems Sales

d specifications

Daikin Stepless

Single Screw Compressor

pCO2 Control Platform

Shell & Tube Evaporator

D. Specifications

Applied Systems Sales

d specifications refrigerant
D. Specifications -> Refrigerant

EWAD~MBY

  • Pure Refrigerant -> No Glide
  • ODP = 0
  • Chlorine free
  • Low toxicity
  • Not flammable
  • Good and efficient refrigerating capacity
  • Moderate operating pressures

Applied Systems Sales

d specifications stepless compressor
D. Specifications -> Stepless Compressor

Reliable New compressor:

New features:

- Newly designed gate rotors

- High efficient electric motor

- COP increase of 5 to 10%

- Newly designed slide vanes

Stepless G-type compressor

Applied Systems Sales

d specifications stepless compressor1
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 40000 hours

  • Low Vibration & Noise
  • Plastic on metal = lower noise
  • Runs at 2900rpm = 17400 compressions/min
  • Smoothed discharge flow = low vibrations

Applied Systems Sales

d specifications stepless compressor2
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.

Applied Systems Sales

d specifications stepless compressor3

Chiller Load

Chiller Load

100%

100%

30%

Starting position

Starting position

15%

12%

12%

Demand

Demand

Double Circuit

Single Circuit

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

Designed, tested and manufactured in Daikin’s own laboratories.

Applied Systems Sales

d specifications evaporator
D. Specifications -> Evaporator
  • 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

Applied Systems Sales

d specifications evaporator hydronics
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

Applied Systems Sales

d specifications evaporator heater

Insulation

D. Specifications -> Evaporator Heater

Standard with Evaporator

Heater Tape

Applied Systems Sales

d specifications pco 2 controller
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.

Applied Systems Sales

d specifications pco2 controller
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

Applied Systems Sales

d specifications temperature control
D. Specifications -> Temperature Control

Inlet / Outlet Control

  • Alters setpoint in function of ambient or ∆T
  • Increase setpoint = increase evaporating temp

Floating Setpoint

  • 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

Applied Systems Sales

slide18

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

Applied Systems Sales

d specifications expansion device
D. Specifications -> Expansion Device

EEV from EWAD380~600

  • 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 from EWAD120~340

Operation based on external

Pressure compensation

EEV’s available on special request

Applied Systems Sales

d specifications dicn

Bigger System Capacity

Increase System Reliability

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

Applied Systems Sales

d specifications dicn1
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

LOAD

Master

EKCLWS

Applied Systems Sales

d specifications dicn2
D. Specifications -> DICN

Fixed Speed

Pumps

DICN - System Example 2

Slave 3

“Variable flow water system”

SL3

Entering water control.

Slave 2

Pump SL1-3 runs if unit = ON

SL2

Pump Master runs always.

Slave 1

SL1

Inverter pump

Master

M1

Applied Systems Sales

d specifications safety devices
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

Applied Systems Sales

e construction condenser

(Aluminum)

E. Construction -> Condenser

Cross fin coils

Lubricant layer

Hydrophilic layer

Colouring & Corrosion proof

Corrosion proof layer

Standard anti-corrosion treated

Acetic Salt Spray Test in accordance with ISO9227

Applied Systems Sales

slide25

PE Condenser Coils

E. Construction -> Robust Chassis

All-Weather Urban and

Industrial Environment

( “Blue color” )

High Quality Platework!

  • Galvanized steel plate
  • Zinc-Phosphate coating
  • Epoxy powder painted)

COLOR  Ivory white (Munsell code 5Y7.5/1)

Applied Systems Sales

slide26

V-Shape PE

Condensers

2.135mm

Shell & Tube

Daikin Single Screw

Compressor

+ Housing

3.980mm

1.110mm

E. Construction -> EWAD120-170MBY

Single Circuit

Applied Systems Sales

slide27

4 V-Shape Chromate Treated

Condensers

2250

Shell & Tube

4280

2238

Daikin Single Screw

Compressor + Housing

E. Construction -> EWAD240-340MBY

Dual Circuit

Applied Systems Sales

slide28

6 V-Shape Chromate Treated

Condensers

Shell & Tube

evaporator

2250

Daikin Single Screw

Compressor

+ Housing

Daikin Single Screw

Compressor

+ Housing

2238

5901

E. Construction -> EWAD380-600MBY

Double Circuit

High Reliability !!!

Applied Systems Sales

slide29

E. Construction -> Switchbox

Automatic Door Lock

Spacious / Easy accessible

Switch Box

Space

Space

Field Wiring

 Spacious

 Ergonomic Height

 High Quality Components

* EWAD120-340MBYNN

Applied Systems Sales

easy maintenance
Easy Maintenance

E. Construction -> Serviceability

Required Space for

Service and Air Intake

1000

1200

Applied Systems Sales

slide31

F. Options & Kits -> Factory Fitted

  • Low Noise Operation OPLN
  • Inverter Fans (On Special Request) OPIF
  • High ESP Fans OPHF
  • Dual Pressure Relief Valve OP03
  • Suction Stop Valve OP12
  • Mains Isolator Switch OP52
  • Ammeter Voltmeter OP57
  • Condenser Protection OPCG

Applied Systems Sales

slide32

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)

Applied Systems Sales

offered with or without opln

Ambient temp. (°C)

15

20

25

30

35

40

0

-1

-2

-3

-4

Sound power level (dBA)

F. Options & Kits -> Inverter Fans (OPIF)

Offered with or without OPLN

- Smooth operation, better colour of sound

- Linear sound reduction in function of ambient

Sound reduction in function of ambient temperature

Further Reduction of

- 3dBa

Applied Systems Sales

slide34

ON/OFF

Inverter

F. Options & Kits -> Inverter Fans (OPIF)

  • Stable HP control, better part load efficiency
  • Energy savings at ambient 10oC to -15oC

Example: EWAD520 @ 5oC ambient

  • On/Off Fan HP control
  • Cycling of fans On and Off
  • Requires dead band
  • Avg Tcondensing = 39oC
  • Inverter Fan HP control
  • Stepless modulation of fan speed
  • No dead band
  • Target Tcondensing = 30oC

Result = 15kWhr Energy Saving!

Applied Systems Sales

slide36

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

Applied Systems Sales

slide37

Compressor 1

A

V

Compressor 2

A

F. Options & Kits -> For Service

OP57 Ammeter / Voltmeter

OP52 Mains Isolator Switch

L1, L2, L3

Applied Systems Sales

slide38

Factory Mounted Condenser Protection Grilles

F. Options & Kits -> Protection Grilles (OPCG)

Applied Systems Sales

slide39

F. Options & Kits -> Field Installed

  • Remote Controller EKRUPC
  • BMS
    • Modbus EKBMSMBA
    • Bacnet EKBMSBNA
  • DICN
    • LWE Sensor EKCLWS

Applied Systems Sales

slide40

F. Options & Kits -> Remote & BMS

Remote Controller

&

BMS

UNIT

Remote Controller

PCO² - Controller

PCO-controller

BMS (Building Management System)

EKAC200A

Gateway

RS232/485/422

EKBMSMBA

EKBMSBNA

Applied Systems Sales

slide41

Read out :

Write :

 Temperatures

 Pressures

 Status

 Alarms...

 Setpoints

 Remote on/off

 Operation mode

...

F. Options & Kits -> BMS

Question

Interface

needed

Answer

Modbus: Max. 16 addresses

BACnet: Max. 8 addresses

Access up to 130 parameters

Applied Systems Sales

slide42

1. R-134a: the good choice !

2. High specifications

3. High Quality Components

4. Useful Options

Large

Air-Cooled

Chillers

EWAD120~600MBY

Applied Systems Sales