ENR Incorporating

Transcription

1 ENR Incorporating R410A Refrigerant Air cooled water chillers with scroll compressors and axial fans, kW ENR models inc. self-cleaning coaxial evaporators ENR models inc. shell and tube evaporators

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3 The complete solution to all your cooling needs ENR Index Page General Description... 3 Technical features...3 Technical Data ENR Range Technical Data ENR Range Technical Data ENR Range Optional Accessories

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5 The complete solution to all your cooling needs ENR General Description ENR range consists of 28 models covering a cooling capacity from 2.2 to 480kW. Technical features Frame Self-supporting painted steel frame. Easy to remove panels allow access to the inside of the unit for maintenance and other necessary operations. Compressors Scroll hermetic type with oil sight glass. Includes an internal overheat protection and crankcase heater, installed on rubber shock absorbers. Evaporator Self-cleaning coaxial type (ENR ) or dual circuit shell and tube (ENR ). Condenser Made up of a copper tube and aluminium fins. Circuits on the refrigerant side are made to create one circuit in models ENR and ENR and two independent circuits in models ENR Alternative materials are available. Fans Axial fans directly coupled to a three-phase electric motor with external rotor (ENR are single phase). A safety fan guard is fitted on the air flow discharge. On the super silenced units the fans have a low rpm. Electrical Board Includes: main switch with door safety interlock, fuses, overload protection for compressors & thermocontacts for fans, interface relays and electrical terminals for external connections. The power supply for ENR is 230V/1Ph/50Hz. For all other models, the supply is 400V/3Ph/50Hz. Refrigeration Circuit All models include filter dryer. Models ENR are capillery, ENR 005+ have thermostatic valves. Models ENR 005+ also include sight glass and liquid line solenoid valve. Water Circuit: Includes end suction close coupled pump, water tank, flow switch (ENR supplied loose), evaporator, temperature sensor, antifreeze probe, water pressure gauge and manual air breather valve. Microprocessor A microprocessor controls all the functions of the unit and allows any adjustments to be made. The set-points and operating parameters are set directly into the microprocessor. This type of microprocessor enables the adjustment of up to four compressors. It has a visual alarm signal, push buttons for the various functions, and offers a continuous control of the system as well as saving all the data in case of a cut in the power supply. Through the display, one can input and have an indication of set values. Principal functions Indication of entering and leaving water temperature; identification and display of blocks by means of alphanumerical code; control of one or two pumps; differential pressure switch alarm delay at start-up; prestarting of the fans; hour counter of compressors in operation; automatic changeover of compressor and pump sequence; compressors start individually and not together; frost protection; remote on-off; operation signalling; manual operation; manual reset; pump down stop. Alarms High and low pressure (from 022 model) and overload on each compressor; antifreeze; flow switch (from 022 model); configuration error. Accessories Electronic card for connection to management and service systems; remote display. Operating Range Cooling Min. Max. Inlet water temperature C 8 25 Outlet water temperature C 5 20 Water thermal difference C 3 9 Ambient air temperature C Minimum chilled water outlet temperature with glycol mixture Max. operating pressure heat exchanger water side C -8 kpa

6 Incorporating Technical Data ENR Range Aircooled liquid chillers ENR series Scroll compressors R410A Coaxial evaporator Condenser with copper tubes, aluminium fin Axial fans Model Nominal cooling capacity (1) kw Nominal cooling capacity (1) Frig/h Total compressors nominal absorbed power (1) kw COP W/W EER W/W ESEER IPLV Compressors no Circuits no Partion step no Hydraulic Section Nominal water flow m 3 /h Evaporator pressure drop kpa Available pressure mca Pump absorbed power kw Pump absorbed current A Hydrulic connections BSP/ 1" 1 1/2 1/2 1/2 3/4" 1" 1" 1" 1" 1" DN 1/4 1/2" Tank volume dm Fan Section Total air flow m 3 /h Fans nr Fans absorbed power kw Fans absorbed current A Total Electric Data Nominal absorbed power kw Maximum absorbed current (F.L.A.) A Maximum peak current (L.R.A.) A Electric feed V/Ph/ Hz 230/1/50 400/3/50 Noise Data Sound pressure (2) db(a) Dimensions and Weight Length mm Width mm Height mm Weight empty kg Weight operating kg (1) Inlet/Outlet water temperature = +12/+7 C - Condenser air temperature = +35 C; fouling factor = m²k/w (2) Sound pressure level referred to measures according to normative ISO3744, pressure level at distance of 10 m, referred to free field on reflecting surface 4

7 The complete solution to all your cooling needs ENR Technical Data ENR Range Aircooled liquid chillers ENR series Scroll compressors R410A Coaxial evaporator Condenser with copper tubes, aluminium fin Axial fans Model Nominal cooling capacity (1) kw Nominal cooling capacity (1) Frig/h Total compressors nominal absorbed power (1) kw COP kw/kw EER kw/kw ESEER IPLV Compressors no Circuits no Partion step no /1 1/1 1/1 1/1 1/1 Hydraulic Section Nominal water flow m 3 /h Evaporator pressure drop kpa Available pressure mca Pump absorbed power kw Pump absorbed current A Hydrulic connections BSP/DN 1 1/2" 1 1/2" 1 1/2" 2" 2" 2" 2" 2" Tank volume dm Fan Section (Axel) Total air flow m 3 /h Fans nr Fans absorbed power kw Fans absorbed current A Total Electric Data Nominal absorbed power kw Maximum absorbed current (F.L.A.) A Maximum peak current (L.R.A.) A Electric feed V/Ph/Hz 400/3/50 Noise Data Sound pressure (2) db(a) Dimensions and Weight Length mm Width mm Height mm Weight empty kg Weight operating kg (1) Inlet/Outlet water temperature = +12/+7 C - Condenser air temperature = +35 C; fouling factor = m²k/w (2) Sound pressure level referred to measures according to normative ISO3744, pressure level at distance of 10 m, referred to free field on reflecting surface 5

8 Incorporating Technical Data ENR Range Aircooled liquid chillers ENR series Scroll compressors R410A Shell and tube evaporator Condenser with copper tubes, aluminium fin Axial fans Model Nominal cooling capacity (1) kw Nominal cooling capacity (1) Frig/h Total compressors nominal absorbed power (1) kw COP kw/kw EER kw/kw ESEER IPLV Compressors no Circuits no Partion step no. 2/2 2/2 2/2 2/2 2/2 2/2 3/2 3/2 3/2 Hydraulic Section Nominal water flow m 3 /h Evaporator pressure drop kpa Available pressure mca Pump absorbed power kw Pump absorbed current A Hydraulic connections BSP/DN DN65 DN65 DN65 DN125 DN125 DN150 DN150 DN150 DN200 Tank volume dm Fan Section (Axial) Total air flow m 3 /h Fans nr Fans absorbed power kw Fans absorbed current A Total Electric Data Nominal absorbed power kw Maximum absorbed current (F.L.A.) A Maximum peak current (L.R.A.) A Electric feed V/Ph/Hz 400/3/50 Noise Data Sound pressure (2) db(a) Dimensions And Weight Length mm Width mm Height mm Weight empty kg Weight operating kg (1) Inlet/Outlet water temperature = +12/+7 C - Condenser air temperature = +35 C; fouling factor = m²k/w (2) Sound pressure level referred to measures according to normative ISO3744, pressure level at distance of 10 m, referred to free field on reflecting surface 6

9 The complete solution to all your cooling needs ENR Optional Accessories Mechanical Configuration Options LN Low noise (compressors jacket, fan speed regulator) Model 008 onwards CF Condenser aluminium filter Model 002 onwards CV Epoxy coated aluminium fin coils Model 002 onwards CC Copper/copper condenser Model 002 onwards CG Fin guard silver treatment on condenser Model 002 onwards GALV1 Galvanised main frame Model , included on 030+ GALV2 Galvanised panels (in conjunction with main frame) Model , included on 030+ ATS Spring type anti-vibration mounting Model 002 onwards Hydraulic Circuit Configuration Options BPA Automatic bypass Model 002 onwards SS.T.WP Stainless steel hydraulic circuit with plate exchanger, pump & tank Model 002 onwards NT.NP No tank, no pump, carbon steel with shell & tube evaporator Model 002 onwards NT No tank, with shell & tube evaporator and pump Model 002 onwards DP Double pump Model 018 onwards PH 5 bar pump Model 002 onwards DPH Double pump with 50 mca with contacts and overload Model 018 onwards AT Management pumps (in conjunction with DP or DPH) Model 022 onwards VTP Manual valve between tank & pump (in conjunction with standard version/dp/ph or DPH) Model 002 onwards RAGT Antifreeze heater internal in tank Model 002 onwards RAGP Antifreeze heater pump Model 002 onwards LLA Electric float low level alarm Model 002 onwards Refrigerant Circuit Configuration Options CSV Compressor suction valve Model 008 onwards HP High pressure gauges Models , included on models 061+ LP Low pressure gauges Models 030 onwards PDS De-superheater with plate exchanger Model 030 onwards PMC Precision leaving temperature (+/-1ºC) Model 002 onwards LW Low water temperature (outlet until -15ºC) Model 002 onwards LT Low ambient temperature (until -25ºC) Model 002 onwards Electric Circuit Configuration Options RV Fan speed regulator Model 002 onwards RVG General voltage relay Model 008 onwards CSF 3 phases sequences relay Model 008 onwards OFC On-off compressors signal Model 012 onwards SF Soft start Model 012 onwards Remote Connection Arrangement Options RS485 Serial card for carel/modbus (RS485) Model 002 onwards OFR Remote display (on/off) Model 002 onwards OFRC Remote control with on/off remote + alarm management Model 030 onwards Packing Options WCA Wooden cage packing ISPM15 Model 002 onwards ANS Rubber pad anti-vibrating (shipment) Model 002 onwards PLT Pallet/ISPM15 pallet Models

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11 The complete solution to all your cooling needs ENR

12 Due to continual product development, details contained within this brochure may change without notice and are therefore purely indicative. T: F: Aqua Cooling Solutions Ltd Unit D4 Segensworth Business Centre Segensworth Road Fareham Hampshire PO15 5RQ