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EWWD 170-600 DJYNN

EWWD 170-600 DJYNN. EWWD 170-600 DJYNN. Water Cooled Chiller 166 kW ÷ 604 kW Single Screw Compressor. TABLE OF CONTENT. Unit position into the range Operating Limits Compressor features Refrigerant Circuit Dry-eXpansion shell & tube evaporator Control & remote control Unit delivery

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EWWD 170-600 DJYNN

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  1. EWWD170-600DJYNN

  2. EWWD170-600DJYNN Water Cooled Chiller 166 kW ÷ 604 kW Single Screw Compressor

  3. TABLE OF CONTENT • Unit position into the range • Operating Limits • Compressor features • Refrigerant Circuit • Dry-eXpansion shell & tube evaporator • Control & remote control • Unit delivery • EWWD-DJYNN Options Summary • Standard options • Options on request

  4. A. UNIT POSITION INTO THE RANGE (1/3) EWWD-DJYNN: unit efficiency level 4.90 500 550 190 400 460 280 230 4.70 380 4.50 650 320 4.30 EER 4.10 380 420 210 320 170 260 460 500 3.90 300 600 3.70 EWWD-DJYNN EWWD-DJYNN/A 3.50 100 200 300 400 500 600 700 kW

  5. A. UNIT POSITION INTO THE RANGE (2/3) EWWD-DJYNN: cooling range EWWD DJYNN/A 1 Compressor 2 Compressors EWWD DJYNN 1 Compressor 2 Compressors 100 200 300 400 500 600 700 kW cooling @ Evap. 12/7°C - Cond. 30/35°C

  6. 186.4 223.3 276.5 306.7 366.3 408.2 443.6 496 540.5 603.9 165.5 201.2 252.8 280.4 333.9 372.2 402.5 448.3 493.7 555.7 EWWD-DJYNN EWWD-DJYNN/A 100 200 300 400 500 600 700 kW A. UNIT POSITION INTO THE RANGE (3/3) EWWD-DJYNN: sizes distribution

  7. Operating range EWWD-DJYNN 55 50 45 40 Condenser leaving temperature - °C 35 30 25 20 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 Evaporator leaving temperature - °C B. OPERATING LIMITS Note: Glycol is necessary for evaporator leaving water temperatures below +3°C

  8. 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 compression suction discharge

  9. C. COMPRESSOR FEATURES (2/3) EWWD-DJYNN – Single Screw Compressor radial balancing axial balancing “ Compressor ” better chilled water stability 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

  10. 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. “ Frame 3200 ” Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary Six electrical terminals to allow as standard a star-delta (Y-D) compressor start

  11. D. REFRIGERANT CIRCUIT EWWD-DJYNN single compressor circuit

  12. E. Dry-eXpansion shell & tube evaporator copper tube internally enhanced • One pass configuration on refrigerant side (R-134a) • Better oil circulation and compressor oil return at part load operation • 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 hammer” phenomena damage

  13. 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.

  14. 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

  15. F. CONTROL AND REMOTE CONTROL (3/4) EWWD-DJYNN – Microprocessor Control “Microtech II C Plus” STANDARD "set-point reset" "demand limit" or from external signal "current limit" SPN "soft load" • High value control functions implemented as standard into the logic

  16. 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 PlantVisor 1.0 software; • BMS communication capability via Modbus, BacNet & LonWorks protocol • Remote communication via modem/GSM (up to 8 chillers with Gateway) • Compatibility with Daikin CSC II (Chiller SequencingControl)

  17. 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.

  18. Standard options Heatpump version Brine version Dual setpoint Thermal relays compressors Under/over voltage controller Victaulic on condenser & evaporator Flow switch for evaporator Setpoint reset and demand limit Alarm from external device Rubber type antivibration mounts Main switch Electronic expansion valve Suction stop valve H. EWWD-DJYNN: Available options • OPPF: Power factor 0.9 • OP57: A/V meter • OPSS: Soft starter • OPNI: Cu/Ni heat exchanger • OPLN: Low noise version • OPPR: Partial Heat Recovery • OPTR: Heat Recovery Unit Types • /A: High Efficiency

  19. 1. OPTIONS AS STANDARD (1/2) 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 others). COMPRESSOR THERMAL OVER RELAYS– Safety devices against compressor motor overloading in addition to the normal protection envisaged by the electrical windings.

  20. 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”. 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.

  21. 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.

  22. 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 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. These allow hot water to be produced up to a maximum temperature of +50°C

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