Air circulation Xpelair air circulation products are able to provide for your fixed or spot cooling needs throughout the year. At work employers are legally obliged to ensure that during working hours temperatures are reasonable and comfortable. In public areas where there is smoking employers have a duty of care to their employees to ensure that exposure to passive smoking is minimised. In public places body heat and odour can be the overriding problem. With the body heat of one person being upwards of 250 Watts depending on activity it s easy to see how 80 people in a hall or workroom can add more than 20kW to an enclosed space. a vital roll too, in destratifying the air, diluting contaminants or ventilating areas that extract systems cannot reach. In warmer periods air circulators may not reduce the air temperature but they provide vital air movement allowing customers and employees to feel fresher and cool. Need something different? If you still can t find your perfect system then contact Xpelair CustomVent Division where we specialise in bespoke solutions. Further details page 288. Extraction is usually considered first with air replacement as close to the workspace whilst avoiding unnecessary draughts. Air circulation plays 262
Product selector Whispair Trapeze Superblowers & Mancoolers Page Number 266 270 272 Fan type Destratification Suspended Stand mounted ceiling fan cooling unit cooling unit Models 4 1 6 Max diameter (mm) 1500 460 560 Max extract rate (m /s).88 1.44.06 Phase Single Single Single Xpelair Air circulation 26
Xpelair Whispair Commercial ceiling fan range Key features The Range Type: Application: Control options: Commercial quality cooling and destratification fans Commercial/Industrial Range of optional controllers available Originally designed to provide a cool flow of air during warm periods, Xpelair Whispairs are a popular choice for winter applications too, where their use as heat destratification units can reduce heating costs. These commercial quality products are designed for use in public buildings, shops, theme pubs, restaurants, village halls, churches, hospitals, schools, farm buildings, factories, warehouses and other commercial buildings. Whispairs are designed for worldwide use, including hot and humid conditions. The units are rated for continuous operation in commercial applications at temperatures up to 40ºC and are suitable for upwards or downwards airflow. The triple bladed units are available in four sizes with swept diameters from 900 to 1500mm. Fan blades are steel and are supplied in matched sets. Whispairs are supplied with a choice of two lengths of suspension rod giving overall drops of 75 or 750mm. In summer the atmosphere can become stifling hot. Whispairs can provide immediate relief by quietly delivering a continuous cooling breeze over a wide area. To maximise the benefit it is good practice to introduce fresh air into the area. of the roof) and cooler air sinks to ground level. Xpelair Whispairs will effectively destratify the hot air which gathers at ceiling height by pushing it downwards to mix with cooler air nearer to ground level, thus providing a more uniform temperature profile from floor to ceiling. This results in reduced heating costs as all the hot air does not gather at ceiling height, and thermal losses are reduced. The units should be set for downward airflow at low speed for optimum effect. The optional Xpelair Automatic temperature sensor control system can automatically compare high and low level temperatures and ensure that the fans are operated to maximise energy efficiency. The controller should be sited where the ambient is less than 5ºC, with the two sensors fitted at high and low level and connected using the cables supplied. In summer the control knob can be used to manually override the sensors. For no-frills speed control the Xpelair Whispair controllers are available for the control of a single fan or groups of up to 6 fans. All Whispairs have integral anti-vibration bobbins and a continuously rated capacitor start and run external rotor motor. The motor incorporates two sets of caged ball bearings for extra long life. In winter stratification will naturally occur in a room as hot air rises to ceiling level (or the apex Specification Construction Whispair Sweep Fans are available in four diameters: 900mm, 1200mm, 1400mm, and 1500mm each packed with two downrod lengths, 75mm/750mm, to cater for different ceiling heights. The fan is suspended from the ceiling using a ceiling anchor and suspension rod with integral anti-vibration bobbin using secure fixings. Blades and Downrods The blades and downrods are manufacture in steel and powder coated in white finish for suitability for high humidity environments. Top and bottom covers are in white polymer. Motor External rotor motor design. Continuously rated capacitor start and run. The design features two sets of caged ball bearings ensuring a long maintenance free life. Rated for use in hot and humid conditions up to 40C. Designed to be suitable both upward and downward air circulation. Using appropriate Xpelair controllers. Suitable for auto destratification systems using an Xpelair Automatic temperature sensor control system. Control Single and Group electronic controllers are available. For quietest operation Transformer controllers such as WAC1 is recommended. Electrical supply 220-240V single phase 50Hz. 264
Performance MODEL NWAN6 NWAN48 NWAN56 NWAN60 Reference number 90409AW 90410AW 90411AW 90412AW Swept diameter (mm) 900 1200 1400 1500 Reversible operation Maximum speed (rpm) 50 10 280 260 Airflow (m /h) 8761 10890 12474 1959 Air delivery (m /s) 2.4.0.47.88 Max electrical power (W) 50 65 65 65 Overall drop options (mm) 75/750 75/750 75/750 75/750 Weight (kg)* 6.5 6.5 6.5 6.5 *All models 6.5kg with marginal weight variance according to sweep diameter Dimensions Whispair Selection Graph Installed Height [m] 12 10 8 6 4 900mm 1200mm 1400mm Recommended Blade Size 1500mm 25 50 75 100 125 150 175 200 Area per Fan [m 2 ] Dimensions (mm) NWAN6 NWAN48 NWAN56 NWAN60 Sweep Diameter 900 1200 1400 1500 Overall Drop All models, ceiling to bottom of fan: 75 or 750 (two down rods supplied) Correct selection and siting of the appropriate Whispair is essential to obtain optimum air displacement. Room height minus 'drop' of fan gives the installed height, which is used to calculate the floor area covered per fan. Xpelair Whispair Commercial ceiling fan range 265
Xpelair Whispair Commercial ceiling fan range Installation Which fan diameter do I choose? Whispair units are delivered with two suspension rods of 75 and 750mm length. Ideally the fan blade should be at 2700mm or more from the floor (but never less than 2400mm) and a minimum of 75mm from the ceiling. Minimum room height is 2.8 metres with 75mm drop or.2 metres with 750mm drop length. Spacing will vary according to individual building layout. As a rule of thumb, in the majority of temperate climate applications Xpelair Whispairs should be spaced 4500-6000mm between blade tips apart. In hot and humid applications this should be reduced by a third, and should be mounted as low as possible (min 2400mm). The units should be no closer than one and a half diameters from pillars and walls in order to avoid turbulence unbalancing the unit and causing it to sway. Check that the units are clear of lighting to avoid strobe effects. When installing one fan, it is suggested that a NWAN56 fan is used as this provides adequate air displacement without high air velocity. When installing more than one Sweep Fan ensure that the blades packaged with the fan are fitted to that fan only, as they are matched as a set and must not be mixed with other blades. A speed controller is recommended particularly for multi unit installations. Higher speed settings are recommended for maximum cooling effect in Summer, and low speeds in Winter to compensate for the upward convection of warm air without creating excessive air movement at working level. Air Movement Winter Heat Conservation Warm air rises and is ultimately lost through the roof of a building. The amount of heat lost depends on the degree of insulation in the roof. To maintain a comfortable working temperature, the building has to be heated disproportionately. To reduce energy costs, heat loss has to be kept to a minimum. Installing a sweep fan will check the upward convection of heat and distribute evenly (see fig. 2); consequently the warm air will be kept at working level longer. Fig 1 - Illustrates a typical example of a building fitted with or without sweep fans. Without the fans to maintain a constant 18 º C, the temperature at the top of the building could be substantially higher. Installing sweep fans could reduce heating bills by 0%. Even with an insulated building, savings of 10% can be achieved. FIG 1 - Heat layers in a commercial environment FIG 2 - Air Distribution pattern Summer Cooling To improve the working environment in the Summer when the atmosphere can be stifling hot, sweep fans operating on a high setting can provide immediate relief by cooling and moving the air over a wide area. To maximise the benefit, good ventilation is required to extract the stale air or alternatively bring fresh air into a room. 266
Controllers Single Fan Transformer Group Fan Electronic Reversible Group Fan Automatic/Manual 5 Step Transformer Speed Controller Speed Controller Electronic Speed Temperature Sensor Speed Controller WAC1 WAC6 Controller WAC6R AWC T1 NWAN6 21852AW 2185AW 21878AW 21857AW 9167AW* NWAN48 21852AW 2185AW 21878AW 21857AW 9167AW* NWAN56 21852AW 2185AW 21878AW 21857AW 9167AW* NWAN60 21852AW 2185AW 21878AW 21857AW 9167AW* *Can be used to control up to 5 Whispair fans. For more fans use 5 step controller with a higher current rating. Automatic/manual temperature sensor AWC Application Provides automatic or manual control of up to 10 Sweep fans. Key Features Designed to minimise temperature variation, providing energy savings in Winter and Summer. Supplied with two sensors for high/low level temperature measurement. Automatic or manual operation. Switch to provide either up or downward air movement. Fan running indicator. Controller can be surface or recess mounted. 208mm x 86mm. 2 year guarantee (UK). Operation Automatic Operation - Energy Saving The fan speed varies automatically between the preset min and max values adjusting to the difference in high and low room temperature. Manual Operation - Summer Cooling The fan speed varies according to the position of the control knob, irrespective of the sensor. Wiring Diagram Installation Do not site where ambient temperature is likely to exceed 5 o C. The high level sensor should be mounted above the fan and the low level within 1m of the controller. Sensors mounted horizontally without touching walls or ceilings. Length of cable supplied. Low sensor - 1 metre High sensor - 10 metres Power rating: 600 watts Dimensions Height = 194mm Width = 92mm Depth = 45mm 10m 0 m Max 1m m Max Xpelair Whispair Commercial ceiling fan range 267
Xpelair Trapeze Commercial cooling fans Key features The Range Type: Application: Air circulation Commercial/Industrial For permanent circulation applications or where floor space is at a premium choose Xpelair Trapeze for suspension at high level. It is an ideal solution for controlled air circulation in public places, sports halls, high bay warehouses where people or equipment need to be protected from the air circulation equipment. The trapeze unit is a fully protected industrial circulation fan which can be suspended at any angle from horizontal to vertical. Two or more units installed horizontally can be used to generate circulation over a large area or used vertically can provide spot cooling. Trapeze units are fully speed controllable using a transformer controller. Specification Casing Polymer tubular construction with integral galvanised steel suspension eyes interchangeable for horizontal or vertical suspension. The casing is fitted with protective finger guards on both the inlet and discharge sides to DIN24167 (UNE20-59- 74)held in place by bolted fixings. Impeller One piece polymer axial blade construction. Motors Single phase totally enclosed, continuously rated, capacitor start and run motor with maintenance free sealed for life bearings and integral thermal overload protection. Connection box Fitted to the side of the unit on a galvanised steel mounting pad. Rated at IP55. The motor is speed controllable using a voltage transformer or alternatively can be connected via a starter. Electrical supply 220-240V single phase 50Hz. 268
Performance Data Dimensions MODEL TP450 Reference number 91412AA Fan diameter (mm) 460 Airflow (m /s) 0Pa 1.44 20Pa 1.28 40Pa 1.08 60Pa 0.9 80Pa 0.68 100Pa 0.41 Nominal fan speed (rpm) 950 Sound pressure level (db(a)@m) 57 Max electrical power (W) 250 Full load current (A) 1.50 Starting current (A) 4.5 Motor insulation class F IP rating IP55 Max operating temperature (ºC) 60 Weight (kg) 14 Performance Graph 120 Static Pressure [Pa] 80 40 TP450 0 0 2000 4000 6000 0 0.4 0.8 1.2 1.6 Wiring Diagram 1 Phase 220-240V 50Hz DOUBLE POLE ISOLATING SWITCH FUSE ON / OFF SWITCH NOT SUPPLIED FAN TERMINAL CONNECTOR Airflow [m /h] Airflow [m /s] Xpelair Trapeze Commercial cooling fans 269
Xpelair SuperBlowers & ManCoolers Commercial and industrial cooling fans Key features The Range Type: Application: Air circulation Commercial/Industrial With more unpredictable fluctuations in our weather the need for temporary solutions to deal with temperature extremes has never been more relevant. Xpelair portable SuperBlowers and ManCoolers are an ideal spot cooling solution. The SuperBlower range of heavy duty industrial blowers & ManCooler range of commercial and industrial air coolers are ideal for use in areas such as factory assembly lines, steelworks, factory moulding areas, hospitality marquees, and general movement applications in large areas. Xpelair SuperBlowers and ManCoolers can fulfil a wide range of duties in industry and the public sector. An effective and reliable answer where even large quantities of air are required quickly, the SuperBlower and ManCooler ranges comes complete with their own robust stand and are easy and quick to set up. The adjust-and-lock head allows the units to be tilted for maximum benefit. For building site requirements the SuperBlower is available in 110V. The range has also been designed to be used for drying outbuildings and equipment after flood damage. Specification Casing Rolled and flanged cylindrical casing in steel. ManCoolers are finished in a grey powder coat finish. SuperBlowers are hot dip galvanised after manufacture. Tubular stand arrangement allows for a large angle of adjustment whist retaining stability. The angle of direction of discharge may be locked using a hand adjustable knob. Protective finger guards to DIN 24167 (UNE 20-59-74) are fitted to either side of the casing. Impeller SuperBlowers are fitted with adjustable pitch axial five blade cast aluminium impellers. ManCoolers are fitted with one piece polymer axial multi-blade impellers. Motors Motors are totally continuously rated, capacitor start an run motor with maintenance free sealed for life bearings and integral thermal overload protection. Connection box Fitted to he side of the unit on a galvanised steel mounting pad. Rated at IP55. The motor is speed controllable using a voltage transformer or alternatively can be connected via a starter. Electrical supply 110V or 220-240V single phase 50Hz. 270
Performance MODEL SB1 240V SB1 110V MC50 MC400 MC450 MC560 Reference number 90171AA 91224AA 91408AA 91409AA 91410AA 91411AA Fan diameter (mm) 400 400 55 410 460 560 Airflow (m /s) 1.25 1.25 0.86 1.42 1.97.06 Nominal fan speed (rpm) 1420 1420 1440 1450 175 175 Sound pressure level (db(a)@m) 5 5 59 64 68 72 Max electrical power (W) 00 00 120 250 70 550 Full load current (A) 1.0 2.7 0.67 1.90.10 4.40 Starting current (A) 2.86 5.04 8.40 10.92 Motor insulation class F F F F IP rating IP55 IP55 IP55 IP55 IP55 IP55 Max operating temperature (ºC) 60 60 60 60 Weight (kg) 2 2 12 19 22 27 Sound Power Data Sound power level spectra db and free field sound levels db(a) measured at a distance equivalent to twice the fan span plus the impeller diameter, minimum 1.5m, at maximum airflow. MODEL 6Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz db(a)@m MC50 24 41 5 61 66 66 62 55 59 MC400 29 46 48 66 71 71 67 60 64 MC450 50 62 70 75 75 71 64 68 MC560 9 56 69 76 81 82 77 70 72 Dimensions Dimensions (mm) Model A B C D E F SB1 557 591 649 MC50 415 489 76 420 20 55 MC400 450 596 775 481 20 410 MC450 45 596 795 481 60 460 MC560 522 726 945 594 400 560 Xpelair SuperBlowers & ManCoolers Commercial and industrial cooling fans 271
Xpelair SuperBlowers & ManCoolers Commercial and industrial cooling fans Air Distribution Graphs SuperBlower SB1 Spread [m] 0 0 2 4 6 8 10 12 14 16 18 Throw [m] ManCooler MC50 Spread [m] 0 0 2 4 6 8 10 12 14 16 18 Throw [m] ManCooler MC450 Spread [m] 0 0 2 4 6 8 10 12 14 16 18 Throw [m] 272
Air Distribution Graphs ManCooler MC400 Spread [m] 0 0 2 4 6 8 10 12 14 16 18 Throw [m] ManCooler MC560 Spread [m] 0 0 2 4 6 8 10 12 14 16 18 Throw [m] Wiring Diagram Fan terminals Xpelair SuperBlowers & ManCoolers Commercial and industrial cooling fans 27