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EWAD 190-650 AJYNN

EWAD 190-650 AJYNN. EWAD 190-650 AJYNN. Air Cooled Chiller - Cooling Only 177 kW ÷ 626 kW Single Screw Compressor. TABLE OF CONTENT. EWAD-AJYNN range Unit position into the range Technical solution Operating Limits Compressor features Refrigerant Circuit DX shell & tube evaporator

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EWAD 190-650 AJYNN

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  1. EWAD190-650AJYNN

  2. EWAD190-650AJYNN Air Cooled Chiller - Cooling Only 177 kW ÷ 626 kW Single Screw Compressor

  3. TABLE OF CONTENT • EWAD-AJYNN range • Unit position into the range • Technical solution • Operating Limits • Compressor features • Refrigerant Circuit • DX shell & tube evaporator • Control & remote control • Unit delivery • Options summary • 1. Standard options • 2. Options on request

  4. A. EWAD-AJYNN RANGE EWAD-AJYNN Flexibility • Version /H • 1 noise version available: • BASE MODEL • 77 ÷ 80,0 dB(A) • Standard unit • 3 noise versions available: • OPRN • 74,5 ÷ 76,5 dB(A) • OPLN • 70 ÷ 73 dB(A) • VERSION /Q • 65 ÷ 66 dB(A) • Version /A • 2 noise versions available: • BASE MODEL • 77,5 ÷ 79 dB(A) • + OPLN • 72,5 ÷ 73,5 dB(A)

  5. B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level 3.30 3.15 3.00 600 EER 2.85 440 500 360 230 550 280 340 2.60 260 200 320 480 400 2.45 300 2.30 2.15 190 2.00 EWAD-AJYNN 150 200 250 300 350 400 450 500 550 600 650 700 750 KW = with economizer

  6. B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level 3.30 650 280 340 600 420 3.15 320 500 550 360 260 380 3.00 EER 2.85 240 500 2.60 400 260 210 300 460 280 2.45 440 2.30 320 340 2.15 EWAD-AJYNN/A 2.00 EWAD-AJYNN/Q 150 200 250 300 350 400 450 500 550 600 650 700 750 KW = with economizer

  7. B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level 3.30 3.15 600 400 460 500 550 3.00 EER 240 280 480 420 2.85 320 260 210 300 340 2.60 2.45 200 2.30 2.15 2.00 EWAD-AJYNN/H 150 200 250 300 350 400 450 500 550 600 650 700 750 KW = with economizer

  8. B. UNIT POSITION INTO THE RANGE (2/4) EWAD-AJYNN BASE MODEL / HIGH EFFICIENCY: cooling range 2 Compressors EWAD-AJYNN EWAD-AJYNN/Q 2 Compressors EWAD-AJYNN/A 2 Compressors EWAD-AJYNN/H 2 Compressors 100 200 300 400 500 600 700 = with economizer kW cooling @ Evap. 12/7°C - 35°C OAT

  9. B. UNIT POSITION INTO THE RANGE (3/4) EWAD-AJYNN: sizes distribution EWAD-AJYNN EWAD-AJYNN+OPRN EWAD-AJYNN+OPLN 400 440 480 500 550 600 190 230 280 320 360 440 500 600 200 260 300 340 480 550 190 230 280 320 360 440 500 600 200 260 300 340 480 550 150 200 250 300 350 400 450 500 550 600 650 700 KW

  10. B. UNIT POSITION INTO THE RANGE (3/4) EWAD-AJYNN: sizes distribution EWAD-AJYNN/Q EWAD-AJYNN/H 210 260 300 340 400 460 240 280 320 440 500 210 260 300 340 400 460 500 600 280 320 420 480 200 240 550 150 200 250 300 350 400 450 500 550 600 650 700 KW

  11. B. UNIT POSITION INTO THE RANGE (3/4) EWAD-AJYNN: sizes distribution EWAD-AJYNN/A EWAD-AJYNN/A+OPLN 260 340 380 550 650 280 320 360 420 500 600 280 340 380 420 500 600 650 260 320 360 550 150 200 250 300 350 400 450 500 550 600 650 700 KW

  12. C. TECHNICAL SOLUTION (1/3) EWAD-AJYNN – Base model/OPRN - Technical solution BASE MODEL - /A Helicoidal fans (900 RPM) with good acoustic performance and no mechanical vibrations Compressor antivibration support to avoid transmission on chiller metal base-frame Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise EWAD-AJYNN/A 77,5 ÷ 79,0 dB(A) EWAD-AJYNN 75,0 ÷ 79 dB(A) ISO 3744 - @ 1m hemispherical field

  13. C. TECHNICAL SOLUTION (2/3) EWAD-AJYNN – OPLN – Technical Solution OPLN Helicoidal fans with good acoustic performance and no mechanical vibrations Compressor antivibration support to avoid transmission on chiller metal base-frame Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise 70,0 ÷ 73,0 dB(A) ISO 3744 - @ 1m hemispherical field Fan speed reduction ( 680 RPM) to attenuate the noise level of the chiller condensing section Compressor sound proof cabinet with aluminium frame, metal panels and high density material inside to absorb acoustic waves Suction muffler

  14. C. TECHNICAL SOLUTION (3/3) EWAD-AJYNN – /Q – Technical Solution /Q Helicoidal fans with good acoustic performance and no mechanical vibrations Compressor antivibration support to avoid transmission on chiller metal base-frame Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise Suction muffler & discharge muffler 65,0 ÷ 66,0 dB(A) ISO 3744 - @ 1m hemispherical field Fan speed reduction ( 500 RPM) to reduce the noise level of the chiller condensing section Compressor sound proof cabinet with aluminium frame, metal panels and high density material inside to absorb acoustic wave Enhanced condensing section of the chiller

  15. Envelope of EWAD-AJYNN 40 30 20 Outside Ambient Temperature (°C) 10 0 -10 -20 -10 -5 0 5 10 15 20 Leaving water temperature (°C) D. OPERATING LIMITS (1/3) EWAD-AJYNN – Unit Operating Limits (Base model) Check on rating tables for part load operation of each unit OPFS OPLA

  16. Envelope of EWAD-AJYNN/A 50 40 30 20 Outside Ambient Temperature (°C) 10 0 -10 -20 -10 -5 0 5 10 15 20 Leaving Water Temperature (°C) D. OPERATING LIMITS (2/3) EWAD-AJYNN/A – Unit Operating Limits C heck on rating tables for part load operation of each unit Glycol application OPFS OPLA

  17. Envelopes of EWAD-AJYNN/H 60 50 40 30 Outside Ambient Temperature (°C) 20 10 0 -10 -20 -10 -5 0 5 10 15 20 Leaving Water Temperature (°C) D. OPERATING LIMITS (3/3) EWAD-AJYNN/H – Unit Operating Limits (High Ambient) Check on rating tables for part load operation of each unit Glycol application OPFS OPLA

  18. E. COMPRESSOR FEATURES (1/2) EWAD-AJYNN – Single Screw Compressor • axial balanced loads • 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 “ Frame3100 ” single screw compressor EWAD 190  360 AJYNN “ Frame3200 ” single screw compressor compression suction discharge EWAD 380  650 AJYNN

  19. E. COMPRESSOR FEATURES (2/2) EWAD-AJYNN – Single Screw Compressor 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 Six electrical terminals to allow as standard star-delta (Y-D) compressor start. For low inrush current and reduce starting torque Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary

  20. F. REFRIGERANT CIRCUIT EWAD-AJYNN – Truly Independent Refrigerant Circuits EWAD-AJYNN with 2 refrigerant circuits: 2 compressors, 2 expansion valves, 2 condensing sections, 2 evaporating sections in the evaporator’s shell, 2 dry-filters

  21. G. DX SHELL AND TUBE EVAPORATOR EWAD-AJYNN - DX (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

  22. H. CONTROL & REMOTE CONTROL (1/4) EWAD-AJYNN – Electrical Panel Features • Power and control are located in two different sections. • Main switch: only on OFF position, it allows the access to power section. • Control section opening is possible also when power is ON.

  23. H. CONTROL & REMOTE CONTROL (2/4) EWAD-AJYNN – 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

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

  25. H. CONTROL & REMOTE CONTROL (4/4) EWAD-AJYNN – 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 2.0(EKPV2J) software; • BMS communication capability via Modbus, BacNet & LonWorks protocol • Remote communication via modem/GSM (up to 8 chillers with Gateway) • Compatibility with Daikin EKCSCII (Chiller Sequencing Control)

  26. I. UNIT DELIVERY (1/2) EWAD-AJYNN – 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. Procedure for extracting machine from the container. Container Kit Optional

  27. I. UNIT DELIVERY (2/2) Daikin – Unit delivery, moving and lifting 2340÷4940 • 2÷4 units can be loaded on the same truck.

  28. EWAD-AJYNN: OPTIONS SUMMARY (1) • Victaulic on evaporator • Alarm from external device • Rubber type antivibration mounts • Evaporator heater • Main switch • Suction stop valve Standard options • Brine version • Dual setpoint • Star delta compressor starter • Thermal relays compressors • Under/over voltage controller • Condenser Coils Alucoat • Flow switch for evaporator • Setpoint reset and demand limit

  29. OPLN5: Low noise OPGA Gauges OPCG Coil guards OPAL Blank Cu/AI coils OPSN Cu/Sn coils OPCU Cu/Cu coils EWAD-AJYNN: OPTIONS SUMMARY (2) Options on request • OPSP¹: Single pump • OPTP¹: Twin pump • OPHP²: High ESP single Pump • OPHT²: High ESP twin Pump • OPTR: Total heat recovery • OPPR: Partial heat recovery • OPFS³: Fan silent • OPLA4: Low ambient • OPPF: Power factor 0.9 • OPEX: Electronic Expansion valve • /Q: extra low noise • /A: high efficiency • /H: high ambiant Unit types 1 Not available for EWAD-AJYNN/Q 2Not available for EWAD-AJYNN/Q 3 Offered as standard for EWAD-AJYNN/Q 4 Not available for EWAD-AJYNN/Q and EWAD-AJYNN/H 5 Not available forEWAD-AJYNN/Q and EWAD-AJYNN/H

  30. 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.

  31. 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”. ALUCOAT CONDENSER COILS – Fins are protected by a special acrylic paint with a high resistance to corrosion. EVAPORATOR ELECTRIC HEATER – Electric heater controlled by a thermostat to protect the evaporator from freezing down -28°C ambient temperature.

  32. 2. OPTIONS ON REQUEST (1/3) OPSP: Water circulation pump– The pump is unit mounted. Hydronic kit consists of: one centrifugal pump direct driven, expansion tank, water feed circuit with pressure gauge, safety valve. The pump motor is protected by a circuit breaker installed in control panel. The kit is assembled and wired to the control panel. OPTP: Two water circulation pumps– The pumps are unit mounted. Hydronic kit consists of: two centrifugal pumps direct driven, expansion tank, water feed circuit with pressure gauge, safety valve, check valves, shut-off valves. The pumps motors are protected by circuit breakers installed in control panel. The kit is assembled and wired to the control panel. OPTR: 100%Total heat recovery–Produced with shell and tube heat exchangers to produce hot water up to 50÷55° C. The heat exchangers are mounted on the refrigerant circuits parallel to the condenser coils to remove all the condensation heat.

  33. 2. OPTIONS ON REQUEST (2/3) OPPR: Partial heat recovery–Produced with plate-to-plate heat exchangers installed between the compressor discharge and the condenser coil. These allow hot water to be produced up to a maximum temperature of 55°C. OPFS device:Fan silent– This device allows the continuous variation of the fan speed, modifying the air flow according to the external temperature conditions. It allows the unit working with air temperature down to –5÷–10°C. In addition, a microprocessor clock switches the fan at low speed according to the client setting (i.e. Night & Day). OPLA: Low ambient– Continuous fan speed modulation on the first fan of each circuit. It allows the unit working with air temperature down to –18°C. OPPF: Power factor 0.9–Capacitor power factor correction - Installed on the electrical control panel to ensure it conforms to the plant rules.

  34. 2. OPTIONS ON REQUEST (3/3) 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 OPCG: Coil guards– Metal protection guards fixed on all the external surface of the condenser coils. OPCU – To give better protection against corrosion by aggressive environments. OPSN (new option)– To give better protection against corrosion in aggressive environments and by salty air.

  35. Engineered for flexibility and performance.™

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