• About this item Xpelair 90411AW NWAN56 Whispair Fan 1400mm diameter.

The Xpelair Whispair NWAN56 Sweep Fan is designed to improve the working environment. Installing an NWAN56 sweep fan could reduce heating bills by up to 30% and even with an insulated building, savings of 10% can be achieved. This unit can be operated by an optional remote controller which is available separately and the unit also has a reversible operation for complete versatility. To provide automatic control the NWAN56 Whispair fan has an integral anti-vibration bobbin and a continuously rated capacitor to start and run the external rotor motor and to provide the unit with an extra long life the motor incorporates two sets of caged ball bearings. The Xpelair ThermoMiser Sensor Control System is available as an optional addition and this will automatically compare high and low temperatures to ensure that the fan is operated in such a way as to maximise energy efficiency. To gain maximum benefit from the control system the ThermoMiser should be sited in an area where the ambient temperature is less than 35 degrees C with the sensors fitted, one at high level and one at low level. The manual control knob can be used in summer to manually override the sensors. All Whispair Controllers can be used to control a single fan or a group of up to six fans. Two drop rods are supplied to provide either 375mm or 750mm overall drop. Specification for the NWAN56 Remote optional controllers available - y Sweep Diameter (mm) - 1400 Reversible operation - y Maximum Speed (rpm) - 280 Air Delivery (cubic metres per hour) - 12,474 Air Delivery (litres per second) - 3,465 Electrical Power Rating (W) - 65 Overall Drop Options (mm) - 375/750 Weight (kg) with marginal variance according to sweep diameter - 6.5 Guarantee (UK) - 2 years