FLO2 - VES

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Belt Drive Fan CurvesFLO 2 - Size 4600Motors available:400 volt 3 phaseall sizes.230 volt 1 phaseup to 2.2kW.Pressure - Pa500400300200Motor3.0SizekW2.22.21.51.53.01000110012001300Fan SpeedRPMSpecify unitas FLO 4 - Speed/kW/phasei.e. FLO 4 - 1100/2.2kW/3ph10008009000.25 0.5 0.75 1.0 1.25 1.50 1.75 2.0 2.25Air Volume - m 3 /secFLO 2 - Size 5All motors400 volt 3 phase.9008007.5kW motors5.5kW motors4.0kW motors700Specify unitas FLO 5 - Speed/kWi.e. FLO 5 - 1250/5.5kWPressure - Pa60050040012501150105013503002007508509501001.0 2.0 3.0 4.0Air Volume - m 3 /secDimensions: Pages 9 & 11.Electrical details: Page 13.6
Constant Pressure ApplicationsTo minimise energy consumptionThe FLO 2 is available containing fans with a built-in inverter designed for constant pressure applications.This is ideal for minimising heat loss when a twin fan unit is to serve a hotel building with multiple bathroom/toilets,and where occupancy varies.To match these fan units an automatic terminal is fitted in each bathroom. VES offer a choice of unit: Model BXSwhich is operated by an integral humidity sensor and PIR motion sensor, and model TDA which is operated by anintegral PIR sensor only, and which has a manual airflow setting adjuster. The units can be installed in wall or ceilingas required.The maximum air volume through both terminal units is 70m 3 /hr, and 12m 3 /hr in the minimum trickle vent setting.Each room unit requires a low voltage supply.These units are easy to install and maintain and silent in operation.Model BXS Dimensions (mm) Power Supply151 41 431591259 volt DC battery(not supplied)or230 volt viaVES power supply unittype BXS PSU.Model TDA Dimensions (mm) Power Supply15556 2815512512 volt ACor230 volt viaVES power supply unittype TDA PSU.The fan contains a programmable inverter integral with the motor. This has an IP54 rating with class F insulation.The fan inverter is programmed at production stage to maintain the design pressure in the ducted system, reducingfan speed as demand decreases.For weatherproof roof mounted twin fan units no additional control is required for the fan to operate. However,for ducted units where there is considerable pressure onthe fan outlet, a pressure transducer is supplied withcontrol interface between sensor and fan inverter.The standard AF 500 autochangeover panel is fitted tothe twin fan unit.This system is also available for the size 4 & 5 belt drivenFLO2 units, using separate inverters with pressuretransducer and control interface.Two sizes of the direct drive units are available. You canselect any duty point from within the areas indicated.400Model 236Constant pressure range 140-280 PaPressure - Pa500400300200100Model 337Constant pressure range 100-400 PaSelection Zone300Pressure - Pa200Selection Zone00.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4Air Volume - m 3 /sec10000.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2Air Volume - m 3 /sec© 2005 VES Andover Ltd.7
Page 2 and 3: The FLO 2 is an extraordinarily wid
Page 4 and 5: Direct Drive Fan CurvesFLO 2 - Size
Page 8 and 9: Plantroom Units - Direct DriveDimen
Page 10 and 11: Weatherproof Units - Direct DriveDi
Page 12 and 13: Sound DataSound Power Level dB ref
Page 14: Silencer Air Pressure Loss80Silence

FLO2 - VES

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