Page Installation..................2 Installation alternatives..........2 Connection to the inlet/outlet duct..3 Connection of duct to the fan outlet..3 Electrical connections...........3 Guards.....................4 To adjust the V-belt tension.......4 To change the belts............4 Installation of HABASIT flat-belt drive...5 Moveing the motor to adjust the belt tension...............6 Dismantling the EULR-30-53 belt guard (principle)............6 Belt pulleys..................7 Variable-pitch guide vanes........7 Checks to be made prior to starting the fan.............8 Starting the fan...............8 Storage before installation........8 Installation..................9 Filling with manometer liquid.......9 Hose connections..............9 Checks.....................9 Temperature correction..........9 Air flow measurement with q-dysa and analogue flow indicating instrument.10 Installation of the frequency converter.11 Fläkt Woods 8192 GB 2008.04 1 Specifications are subject to alteration without notice
Installation : EULZ-64 Protective screen EULZ-63 counterflange EULZ-61 flexible connection EULZ-62 connection piece Inlet: Fig. 1 EULZ-65 damper EULZ-62 connection piece EULZ-61 flexible connection EULZ-63 counterflange EULZ-64 protective screen Installation alternatives The fan can be installed to discharge into a duct or into some other unit section. Alternative directions of discharge and locations of discharge opening are shown in Fig. 2 and 3. Horizontal installation Vertical installation (sizes 11 32) Top 1) inlet upwards forward Rear inlet forward Left side inlet upwards downwards Normal inlet (end wall Top 1) inlet Fig. 2 Bottom inlet 2) downwards 1) Upward outlet not possible 2) Downward outlet not possible Fig. 3 Normal inlet (end wall) Fläkt Woods 8192 GB 2008.04 2 Specifications are subject to alteration without notice
Connection to the inlet/outlet duct Ducts can be connected to the connection parts of the unit in accordance with one of the examples shown in Fig. 4. Important! For all alternatives, make sure that the deadweight of the duct system is not applied to the unit casing. Connection piece Flexible connection Counterflange Duct EULZ-61 EULZ-62 EULZ-63 Connection pece Flexible connection Counterflange Duct EULZ-61 EULZ-62 EULZ-63 Fig. 4a Fig. 4b Fig. 4c The duct can be connected to the casing in accordance with one of the following alternatives: A. By means of a connection piece secured to the unit casing with self-tapping screws. The duct can then be connected by means of a PG-joint or a flanged joint as shown in Fig. 4a. B. By means of a flexible connection secured to the unit casing with self-tapping screws. The duct can then be connected by means of a PG-joint or a flanged joint as shown in Fig. 4b. C. By means of a collared duct with sheet steel angles at the corners. Connection of duct to the fan outlet Installation principle: All connections should be fitted edge-to-edge with the back plate of the fan. N.B. Not all connection facilities are shown, see Fig. 5 and 6. Fig. 6 Electrical connections Electrical connections are to be carried out by an authorized electrician. Use a rubber insulated cable but do not run the cable through the inspectiondoor. Allow about 1.2 m of extra cable on the inside of the casing of the EULR-11 through -32, to enable the fan to be withdrawn for service. See Fig. 9. Use a trepanning drill, for instance, for drilling a hole for the cable gland at a suitable point on the casing. The cable gland can be arranged as shown in Fig. 8. Safety isolating switch The fan should be equipped with a safety isolating switch such as the EULZ-17. Always open the safety isolating switch before doing any work on the fan. The safety isolating switch should be located at a point that enables the fan to be withdrawn without having to disconnect the electrical connections. Do not use the safety isolation switch as an operating switch. Fig. 7 Fig. 8 Fig. 5 Fig. 9 Fläkt Woods 8192 GB 2008.04 3 Specifications are subject to alteration without notice
Guards The provisions of the EEC Machinery Directive concerning guards must be met. This means that the fan must be equipped with screen protection for belt drive and inlet or screen protection (requiring tools to dismantle it) behind the inspection cover or a door lock. To adjust the V-belt tension The belts must be correctly tensioned to ensure good contact with the pulleys. If insufficiently tensioned, the belts may slip, and if excessively tensioned, the motor and fan bearings may be overloaded. When correctly tensioned, the belt deflection L will be 15 mm per metre of distance between centres (c/c) when a force P (N) is applied. The deflection and force should preferably be measured by means of a tensiometer (see Fig. 10 and 11). The force P is dependent on the belt type as shown in the table below. c/c L To change the belts To change the belts, first move the motor towards the fan by a sufficient amount to enable the old belts to be easily prised off the pulleys and the new belts to be prised on. Change all the belts at the same time. Use matched belts (with the same production number), i.e. belts of exactly the same length. Tension the belts according to the instructions on this page and align them as shown in Fig. 12. Retension the belts after 30 minutes of operation. Fig. 12 P Fig. 10 1 2 3 4 5 6 cm N 120 100 80 60 20 0 Fig. 11 Belt section SPZ SPZ SPA SPA SPB SPB SPC SPC 1) New belts. Effective diameter of smaller pulley, mm 67 95 100 90-132 140 160-224 236 224-355 375 P in N / belt Normal Max. 1) 10 15 20 28 35 50 60 90 15 20 27 35 50 65 90 120 Fläkt Woods 8192 GB 2008.04 4 Specifications are subject to alteration without notice
Installation of HABASIT flat-belt drive Caution! Never fit an ice cold and stiff belt; allow the belt to thaw out, become flexible and pliable before fitting it. Exposure to cold impairs the elasticity of the belt material. This will make the belt difficult to fit and, in the future, may cause it to break apart at the weld. 1. Fit the motor and fan pulleys to their corresponding shafts but do not tighten the bushes. 2. Fit the belt around the pulleys and push the motor by hand to stretch the belt. 3. Align the pulleys by means of a straight edge and tighten the pulley bushes. 4. Tighten the motor mounting bolts only so hard that the motor will still be able to slide on the guide rails. 5. Measure the longest free measurement distance on the belt to the nearest 100 mm. The belt must not be in contact with the pulleys along the measurement distance. 6. Remove the belt, place it on a flat surface and mark off the above measurement distance to the nearest 100 mm. 7. Refit the belt to the pulleys and tension it by means of the tensioning screws of the motor guide rails. Keep the shafts of the motor and fan as parallel as possible. 8. Conclude the tensioning when the belt has achieved the elongation specified in the table. 9. Rotate the belt drive by hand in both directions. If the belt tends to move axially in one direction or the other, this is because the shafts are not parallel. Adjust by means of the tensioning screws on the slide rails until the belt remains in the centre of the pulleys when the pulleys are rotating. 10. When tensioning has been completed and the belt remains in position when the drive is rotating, securely tighten the motor mounting bolts. Start by tightening the bolts nearest to the pulley. Before tensioning (mm) Distance between marks After tensioning (mm) Type: F 0, F 1 Type: F 14, A 2, A 3, A 4 2,8% 2,5% 100 102,8 102,5 200 205,6 205,0 300 308,4 307,5 400 411,2 410,0 500 514,0 512,5 600 616,8 615,0 700 719,6 717,5 800 822,4 820,0 900 925,2 922,5 1000 1028,0 1025,0 Tension the belt until the elongation tabulated above has been achieved. Measurement distance Use a straight edge to check that the pulleys are in line. If the belt moves sideways, adjust by means of the tensioning screws of the guide rails or motor bracket. Fläkt Woods 8192 GB 2008.04 5 Specifications are subject to alteration without notice
Moveing the motor to adjust the belt tension The belt tension can be adjusted by moving the motor. 1. Remove the belt guard, if fitted. 2. Slightly back off the 4 mounting screws. 3. Use the tensioning screws to adjust the belt tension. 4. Check the alignment of the drive. Align by means of the adjustment screw. 5. Retighten the mounting bolts. 6. Refit the belt guard if one was fitted EULR-60 through -84 Tensioning pad Tensioning screw EULR-11 through -53 Mounting screw Slide rail Tensioning screw Mounting screw Fig. 14 Adjustment screw Mounting bolt Dismantling the EULR-30-53 belt guard (principle) Adjustment screw Sliding cover plate for motor shaft Fig. 13 Fig. 15 Fläkt Woods 8192 GB 2008.04 6 Specifications are subject to alteration without notice
Belt pulleys To remove and refit the belt pulley Never hammer the belt pulley onto or off a shaft, since even light blows and shocks may damage the bearing, which will give rise to noise and an abnormally high rate of wear. To remove: 1. Remove the screws, oil them sparingly and screw one of them into the extractor hole, i.e. the tapped hole in the bush (see Fig. 16 and 17). 2. Tighten the screw until the bush is free of the hub and the unit is free of the shaft. 3. Remove the pulley and the bush from the shaft as one unit. To fit: 1. Clean the bore of the pulley and the inside and outside of the bush to remove any anti-corrosion agent, and make certain that the surfaces are completely free from oil and dirt. Fit the bush into the pulley. 2. Oil the screws sparingly and loosely screw them into the tapped holes in the pulley (see Fig. 16). 3. Clean the shaft and fit the pulley and bush onto the shaft as one unit. 4. Tighten the screws alternately until they are all securely tightened. Variable-pitch guide vanes If the fan is equipped with variable-pitch guide vanes at both inlets, check that the guide vanes can be reset from the fully open position (max. air flow) to the required partially closed position (reduced air flow). Resetting is carried out by the control lever being turned by means of an actuator. To avoid damage to the guide-vane linkage, check that the actuator does not attempt to force the guide vanes past the fully open or fully closed position. All pivotal joints of the guide vanes have glass-fibre reinforced nylon bearings which must not be lubricated. Suitable actuators should have a torque of 15 Nm. Fig. 18 Extractor hole Fig. 16 Screw Screw Fig. 17 Fig. 19 Fläkt Woods 8192 GB 2008.04 7 Specifications are subject to alteration without notice
Checks to be made prior to starting the fan that the fan section is connected to the ducting or equipped with necessary EULZ-64 protective screen, Fig. 1, page 1, on the fan inlet and fan outlet. that an authorized electrician has given approval for commissioning the unit. that the fan impeller rotates freely and that no objects which can be drawn in and damage the fan have been left in the installation. Important! If the fans are not operated for more than 3 months before or after installation, the load on the belt drive must be relieved and the fans rotated by hand at regular intervals. If not, the ball bearing may suffer the following damage; see the illustration. Starting the fan The fan must not be started with the damper on the suction or delivery side closed. However, the motor can be briefly energized with the inspection cover open for checking the direction of rotation. Caution! When commissioning a new unit, check the belt tension and adjust, if necessary, after 30 minutes of operation. Belastningss Load-induced damage Storage before installation The storage area must not be exposed to vibrations from the surroundings of a kind which can give bearing damage. If the storage period exceeds 3 months, the belt drive tension should be released and the fans should be rotated by hand at regular intervals. Fläkt Woods 8192 GB 2008.04 8 Specifications are subject to alteration without notice
1 (Pa) 3 MODEL M 700 PA MANOMETER DWYER INSTRUMENTS, INC. MICH. CITY IND. 46360 U.S.A. EU Air Handling Unit Air flow measurement with q-dysa and analogue flow indicating instrument p Flow sensor q-dysa Filling screw + Pa 1.4 EULF-11 1.2 Resetting screw - + 0 J4129410-2101 q = 19.86 p m /s 0 0.2 0.3 0.4 1.0 0.8 0.6 Level Flow indicating instrument The q-dysa flow sensor is supplied if the EULR fan is ordered with flow sensor (code suffix d = 5, 6). The accuracy of the flow sensor is ±7% of the differential pressure reading provided that the installation and maintenance instructions are observed. The analogue indicator instrument shows the air pressure in m 3 /sec. Installation Vertically mount the instrument on a wall or against a panel on the unit and secure it by means of the screws supplied. The horizontal position of the instrument can be adjusted by means of the built-in level. Filling with manometer liquid Back off the resetting screw completely and then screw it in three full turns. This will enable zero setting adjustment in both directions. Remove the filling screw. Fill the instrument with the manometer liquid supplied, pouring the liquid into the filler hole until the level of liquid reaches the zero setting. Caution! Do not use any type of liquid other than the manometer liquid supplied. Use the resetting screw for fine adjustment of the zero setting. Refit the filling screw and tighten it. If you have filled the instrument with too much manometer liquid and cannot adjust the zero setting to the proper position, insert a pipe cleaner or the like in the filler hole to remove excessive liquid or pour out a slight amount of liquid. Hose connections The 4 mm i.d. hoses supplied should be cut to the appropriate length and should be connected from the nipples on the upper frame member on the inspection side to the nipples on the instrument, plus to plus and minus to minus. Fasten the hoses as appropriate so that they cannot be damaged or kinked. Checks The zero setting of the manometer should be checked at regular intervals. To check the zero setting, remove the hoses connected to the pressure connections of the manometer. Whenever the need arises, use the resetting screw to adjust the zero setting. Top up with manometer liquid, if required. The measurement nozzle should be blown clean with compressed air once or twice a year depending on the quality of the air. This can easily be done by disconnecting the hoses from the instrument and blowing them with compressed air to free the air passages from impurities. Another type of pressure gauge may also be connected for use as an alternative meter or for checking the performance of the flow indicating instrument. In this case, fit T-nipples in the hoses to the indicating instrument and run hoses from them to the pressure gauge. The air flow can be calculated by the expression: q = 1 p m 3 /s k where the value of k is stated on the unit rating plate and p is the measurement pressure in Pa. Temperature correction The flow scale on the indicator instrument and the above flow equation are applicable to air at a temperature of +20 C. At other air temperatures, the flow must be corrected with the formula: q = q 20 (273 + t) 293 m 3 /s where q = the actual flow through the fan, q 20 = the flow reading and t = the present temperature in C. Fläkt Woods 8192 GB 2008.04 9 Specifications are subject to alteration without notice
Air flow measurement with q-dysa and analogue flow indicating instrument EU size F-impeller B-impeller size 1 B-impeller size 2 B-impeller size 3 B-impeller size 1 B-impeller size 2 B-impeller size 3 size 2 normal normal normal reinforced reinforced reinforced K-factor m 3 /s at K-factor m 3 /s at K-factor m 3 /s at K-factor m 3 /s at K-factor m 3 /s at K-factor m 3 /s at K-factor m 3 /s at 500 Pa 500 Pa 500 Pa 500 Pa 500 Pa 500 Pa 500 Pa 11 30,76 0,727 20 15,89 1,41 21,34 1,05 16,42 1,36 21 10,07 2,22 16,42 1,36 10,72 2,09 8,12 2,75 22 8,21 2,72 10,72 2,09 8,12 2,75 6,51 3,43 6,51 3,43 30 8,21 2,72 10,72 2,09 8,12 2,75 6,51 3,43 6,51 3,43 31 5,07 4,41 6,51 3,43 4,57 4,89 3,90 5,73 6,51 3,43 4,57 4,89 3,90 5,73 32 3,61 6,19 4,57 4,89 3,90 5,73 3,03 7,38 4,57 4,89 3,90 5,73 3,03 7,38 33 3,61 6,19 3,90 5,73 3,03 7,38 3,90 5,73 3,03 7,38 40 3,61 6,19 4,57 4,89 3,90 5,73 3,03 7,38 4,57 4,89 3,90 5,73 3,03 7,38 41 2,89 7,74 3,90 5,73 3,03 7,38 2,30 9,72 3,90 5,73 3,03 7,38 2,72 8,22 42 2,22 10,1 3,03 7,38 2,30 9,72 1,99 11,24 3,03 7,38 2,72 8,22 2,23 10,03 44 2,22 10,07 2,30 9,72 1,99 11,24 2,72 8,22 2,23 10,03 50 2,22 10,1 3,03 7,38 2,30 9,72 1,99 11,24 3,03 7,38 2,72 8,22 2,23 10,03 51 1,69 13,2 2,30 9,72 1,99 11,24 1,50 14,91 2,72 8,22 2,23 10,03 1,75 12,78 52 1,69 13,2 2,30 9,72 1,99 11,24 1,50 14,91 2,72 8,22 2,23 10,03 1,75 12,78 53 1,4 16,0 1,99 11,24 1,50 14,91 1,35 16,56 2,23 10,03 1,75 12,78 1,35 16,56 60 1,4 16,0 1,99 11,24 1,50 14,91 1,35 16,56 2,23 10,03 1,75 12,78 1,35 16,56 62 1,09 20,5 1,50 14,91 1,35 16,56 1,08 20,70 1,75 12,78 1,35 16,56 1,08 20,70 64 0,85 26,3 1,35 16,56 1,08 20,70 0,80 27,95 1,35 16,56 1,08 20,70 0,80 27,95 71 0,85 26,3 1,35 16,56 1,08 20,70 0,80 27,95 1,35 16,56 1,08 20,70 0,80 27,95 73 1,08 20,70 0,80 27,95 0,68 32,88 1,08 20,70 0,80 27,95 0,68 32,88 80 0,85 26,3 1,35 16,56 1,08 20,70 0,80 27,95 1,35 16,56 1,08 20,70 0,80 27,95 82 1,08 20,70 0,80 27,95 0,68 32,88 1,08 20,70 0,80 27,95 0,68 32,88 84 0,80 27,95 0,68 32,88 0,52 43,00 0,80 27,95 0,68 32,88 0,52 43,00 Fläkt Woods 8192 GB 2008.04 10 Specifications are subject to alteration without notice
Fan EUL(B,F) Installation of the frequency converter Warning: Incorrect installation of the frequency converter can damage the bearings in the motor. It is Fläkt Woods' policy to only except claims when the motor and frequency converter have been supplied and installed by us. Damage to the motor will not be accepted when the motor has been connected to the frequency converter by an installation engineer not provided by Fläkt Woods. Frequency converter Connection of the screening conductor shall be made via an EMC approved union in the frequency converter's casing or by using a clamp intended for this purpose. The screen conductor must not be connected to an earth bolt. The frequency converter and the motor must be installed by a qualified electrician with good knowledge of speed regulated, drive system installations (frequency converters) and EMC-safety. The following recommendations should be seen as a supplement to the manufacturer's installation instructions. In those cases where there are differences, the manufacturer's instructions shall take precedence over the following; this is due to the warranty undertaking from the manufacturer. The screen should have 360 contact with the casing Screen Insulating tape General The installation between the motor and the frequency converter should be carried out using screened, unbroken 4- wire cable intended for EMC-installations for motor operations, the screen shall have at least 80% optical density, for example, Nexan s NCY or Ölflex Classic. The screen shall have 360 contact with the casing both in the motor and in the frequency converter to give the maximum contact surface. Safety switches or connection boxes fitted between the frequency converter and motor are not recommended. Motor The cable gland in the motor's outlet box should consist of an EMC approved cable gland, for example, Miltronic SKINTOP MS-SC. The screen conductor may only be connected via EMC unions, not to earth bolts. The screen should have 360 contact with the casing Casing Screen Connection of the screen conductor In those cases the screen conductor must be connected to an earth bolt in the motor or frequency converter, this should be done so that the impedance is as low as possible, in these cases, this conductor is limited in length to 5 times its width. For example, when the screen conductor is 1 cm wide it must not be longer than 5 cm. Insulating tape Diverse Besides this, the following should be observed: type of mains supply. local regulations and provisions. the manufacturer's installation instructions for the frequency converter. Outputs over 22 kw In the event of outputs over 22 kw, a symmetrical screened cable with concentric or in some other way symmetrically designed protective earth conductor should be used, please refer to the installation instructions for the frequency converter for recommendations concerning these installations. Fläkt Woods 8192 GB 2008.04 11 Specifications are subject to alteration without notice