E-Options - Alfa Laval - ABC

ELECTRICAL OPTIONS Dry Coolers & Condensers AlfaBlue & V-typeBI - SwitchBoard with InverterThis equipment is for units

Equipment for double fan rows and V-type unitsBIC - Cabinet with InverterElectrical cabinet and wiring with Frequency Converter• Parallel operation of fans. Screened motor cables are needed.• Integrated process controller.• Full graphic display panel that provides an assistant with an extensive library of preprogrammed HVAC application macrosand allows rapid configuration of inputs, outputs, and parameters for specific HVAC applications to maximize convenience andminimize start-up time• Support for 15 Languages• Analog Input (0-10 V, 0-20 mA, 4-20 mA, temperature sensor type TF...)• Interface system with RS485 Interface (MODBUS) or optional with LON® possiblePower supply 400V 50/60HzIP 54Ambient Temp -25°C + 40°C (if always powered)Mains isolating switchMain protecting fuses for inverter and fansMotor protection via thermocontactsCommon motor resetTerminal contacts for fans faultManual by-pass in case of Inverter failureCooling fan(s) controlled via thermostatOptionals for the cabinetAnticondensing electrical heater (R); cooling fanoption F = R+C (for operating Temp -25/+40°C)The equipment complies with:73/23/EEC Low Voltage Directive89/336/CEE Electromagnetic CompatibilityCEI EN 61000-6-1; 6-3 Elettromagnetic Compatibility (EMC)EN 60224-1 Safety of machinery

Products descriptionOptionFan Speed Control(BF)Working descriptionLinear regulation of the fan speed: the variation of the input signal corresponds, proportionally, to aconstant variation of the voltage supplied to the load. In practical terms this means that significantchanges of the fan speed will be performed.Features&BenefitsDisadvantages-Good regulation of the condensing pressure/water -Motor hum on "low rpm" fans (8-12 poles);temperature;-low noise;-No considerable energy saving-low cost regulation system"ON/OFF" regulation of fan/couple of fans according to the input signal (unrefined regulation);Fan Step Control (BT)Features&Benefits-low cost regulation system-Digital input for enabling remote ON/OFF, etc.Disadvantages-No continuous control; the variation of the speedis only possible by Y/D change-over;Frequency ConverterControl (BI)The continuous regulation of the fan speed is performed by the modulation of the frequency of thepower supply, according to the input signal. The inverter is already equipped with all poles effectivesinus filter.Features&BenefitsDisadvantages-"High efficiency" regulation system and-lack in the BI range (only for

EC Technology fanFrequency ConverterControl (BIC)The continuous regulation of the fan speed is performed by the electronics within the fan, according tothe input signal;Features&BenefitsDisadvantages-High efficiency at every speed;-Price;-Easy installation;-Less noisy fan motors;-Regulation system integrated in the fan motor=>noneed of cabinet=>space saving;-Working parameters: current, voltage, rpm, runninghours are visible in real time;-Digital input for enabling remote ON/OFF, doubleset point, etc.-Network connection: RS485 MODBUS-RTU-Long life motor fan;-Excellent electromagnetic compatibility (EMC)The according continuous to EN regulation 50082-2; of the fan speed is performed by the modulation of the frequency of thepower supply, according to the input signal.Features&Benefits-"High efficiency" regulation system andconsiderable energy saving;-Network connection: RS485 MODBUS-RTU-Suitable to work up to -25°C ambient temperature;Disadvantages-Shielded motor cables are needed;-Price;- Full graphic display panel with "Help" functionavailable