EWWD DJYNN

2 19-Sep-15 Water Cooled Chiller 166 kW ÷ 604 kW Single Screw Compressor EWWD DJYNN

3 19-Sep-15 TABLE OF CONTENT A.Unit position into the rangeUnit position into the range B.Operating LimitsOperating Limits C.Compressor featuresCompressor features D.Refrigerant CircuitRefrigerant Circuit E.Dry-eXpansion shell & tube evaporatorDry-eXpansion shell & tube evaporator F.Control & remote controlControl & remote control G.Unit deliveryUnit delivery H.EWWD-DJYNN Options summaryEWWD-DJYNN Options summary 1.Options as standardOptions as standard 2.Options on requestOptions on request

4 19-Sep-15 EWWD-DJYNN: unit efficiency level kW EER EWWD-DJYNNEWWD-DJYNN/A A. UNIT POSITION INTO THE RANGE (1/3)

5 19-Sep-15 EWWD-DJYNN: cooling range EWWD-DJYNN EWWD-DJYNN/A kW Evap. 12/7°C - Cond. 30/35°C 1 Compressor2 Compressors 1 Compressor2 Compressors A. UNIT POSITION INTO THE RANGE (2/3)

6 19-Sep-15 EWWD-DJYNN: sizes distribution kW EWWD-DJYNN EWWD-DJYNN/A A. UNIT POSITION INTO THE RANGE (3/3) Link back

7 19-Sep-15 B. OPERATING LIMITS Note: the use of glycol is necessary for evaporator leaving water temperature below +3°C Operating range EWWD-DJYNN Evaporator leaving temperature - °C Condenser leaving temperature - °C Link back

8 19-Sep-15 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 suctioncompression discharge C. COMPRESSOR FEATURES (1/3)

9 19-Sep-15 EWWD-DJYNN – Single Screw Compressor “ Compressor ” radial balancing axial balancing Composite material (carbon base composition) to improve compressor reliability and energy performances Stepless slide valve (oil controlled) to change compressor capacity to match exactly the plant thermal request better chilled water stability C. COMPRESSOR FEATURES (2/3)

10 19-Sep-15 EWWD-DJYNN – Single Screw Compressor “ Frame 3100 ” Six electrical terminals to allow as standard a star-delta (Y-D) compressor start 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. Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary C. COMPRESSOR FEATURES (3/3) Link back

11 19-Sep-15 D. REFRIGERANT CIRCUIT i.e. EWWD-DJYNN one compressor circuit P&I Link back

12 19-Sep-15 E. Dry-eXpansion shell & tube evaporator 1)One pass configuration on refrigerant side (R-134a) 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 copper tube internally enhanced Link back

13 19-Sep-15 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. F. CONTROL AND REMOTE CONTROL (1/4)

14 19-Sep-15 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 F. CONTROL AND REMOTE CONTROL (2/4)

15 19-Sep-15 EWWD-DJYNN – Microprocessor Control “Microtech II C Plus” High value control functions implemented as standard into the logic Link back options summary F. CONTROL AND REMOTE CONTROL (3/4)

16 19-Sep-15 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) Link back options summary F. CONTROL AND REMOTE CONTROL (4/4) Link back table of content

17 19-Sep-15 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. G. UNIT DELIVERY Link back

18 19-Sep-15 H. EWWD-DJYNN: OPTIONS SUMMARY Standard options –Heatpump version –Brine version (OPZH;OPZL) –Double setpoint –Thermal relays compressorsThermal relays compressors –Under/over voltage controllerUnder/over voltage controller –Victaulic on condenser –Flow switch for evaporatorFlow switch for evaporator –Setpoint reset and demand limitSetpoint reset and demand limit –Alarm from external deviceAlarm from external device –Rubber type antivibration mountsRubber type antivibration mounts –Main switch (OP52) –Electronic Expansion valve (OPEX)Electronic Expansion valve (OPEX) –Suction stop valve (OP12)Suction stop valve (OP12) Available options –Power factor 0.9 (OPPF)Power factor 0.9 (OPPF) –A/V meter (OP57)A/V meter (OP57) –Soft starter (OPSS)Soft starter (OPSS) –Cu/Ni heat exchanger –Low noise version (OPLN)Low noise version (OPLN) –Heat Recovery (OPPR;OPTRHeat Recovery (OPPR;OPTR –Option /A available with EWWD DJYNN/A

19 19-Sep 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. Link back options summary

20 19-Sep-15 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 1. OPTIONS AS STANDARD (2/2) Link back options summary

21 19-Sep 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. Link back options summary

22 19-Sep-15 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 2. OPTIONS ON REQUEST (2/2) Link back options summary

23 19-Sep-15