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1. Blower Installation requirements
1.1. Outdoor fans should be protecting by canopy. Prevent lay up fans in open-air
1.2. Inspect every parts of fan carefully, to confirm whether the right specification and type of fan. Whether the impeller is in the right direction or not as requirement and whether all dimensions are the same drawings. Install fans as drawings, and make sure that there is enough space between impeller and air-duct.
1.3. Rotate impeller by any tools, ensure impeller have no friction. Before running fan, should check the bolts are fastening and wiring is correct.
2. Blower installation instructions
2.1. The blower fans should be installed smoothly, should be add the plate to keep the fan stable. Special attention to lifting the impeller and other rotating components not to be bumped.
2.2. Installation of high temperature fans, should filled with silicate cotton around the insulation box, fans shall be laid ur perpendicular to the spindle.
2.3. Ensure that the fan casing body no garbage, debris, etc.
2.4. The fan casing connected with the duct,first Locating Pins for temporary fixation,and then tightens all bolts.If the fandiameter ≥800mm or tip speed≥80m/s,you should install the damper,and damper should install horizontal and tsightly.Prohibit the weight of pipe added to the fan's casing.When the duct turn,the distance from fan postion to turning is shouid be more than 2 times of the impeller diameter
2.5.Connected to earthing protection of the line under the motor mounting,when motor wiring is complete,prevent dust and water vapor into the junction box.Tighten all wire connections bolts to prevent the thermal resistance is too high and cause the cord to overheat.
2.6.Fan needs a solid foundation.Pay more attention to the strength of hanging and hook and the support on the wall,when install the fan horizontally.
3. Blower starting and running
3.1. Voltage is within the normal range(for 380V,tolerance error of±5%), three-phase current is normal.
3.2. No sundries in fan’s casing amid duct.
3.3. The right direction of rotation of impeller.
3.4. Actual speed matches the rated speed.
3.5. Motor protective earth wire and current protection(fuse)are installed as requirement
After all above,fan could be run.
When running with severe vibration,should power off and check the fan immediately.
When current is overload,the possible reason is that the actual resistance of the system is greater than the design resistance or
surge behavior.
Need to stop and check bolts are loose or not after the fan running for 10-30 minutes.
The second is to alwavs check the temnerature nf motor's hearing and vibration is normal,as well as the nresence or ahsence offriction,collision and other abnormal sound.
In case of the following conditions should be immediately stopped to check or repair:current sudden rise exceeds the specified value
the severe vibration or grazing sound,temperature of motor bearing is rising rapidly.
/Special Notice
The case of fan and motor must be stay on land stabity!Forbid to running fans in negative direction and at the situation of lack-phase. Don't maintain the running fans.
4. Blower fan maintenance
In order to avoid accident of improper maintenance were caused by human’s error, the performance of the equipment were play fully, extend the life of blower, we should strengthen the maintenance of the fan.
Precautions:
The case of fan and motor must be stay on land stability. Forbid to running fans in negative direction and at the situation of lack-phase. Don’t maintain the running fans.
4.1. Only in the case of completely normal fan equipment can be used
4.2. Fan startup after maintenance,should pay attention to that the various components of the fan is normal.Regularly check loose parts, for example:coupling,cooling wind leaf,the impeller fixing nut.
4.3. Need to be cleaned regularly volute and impeller fouling the,dirt impurities such,prevent corrosion,deformation,balanceapsed.
4.4. Ensure that the motor current stable,surface temperature ≤40℃,wire connection reliable and secure,prevent lack of phase.
4.5. Bearing regular replacement of specified crease.For example,high temperature fan to be periodically (usually every 30-40days)inject 7019-1(2)extreme pressure composite lithium grease,cleaning on a regular basis (one year),replaced.
4.6. Water-cooled motor pass water before you can use,water need to ensure smooth and clean.water pressure≥0.3Mpa.Stop using water pipes should be drained to prevent rust,and special attention to prevent the low temperatures damage water-cooled motor
4.7. Fan deactivate for more than one year to be re-used,should check whether the motor becomes wet,water-cooled motor whether water leakage,otherwise machine should sent to factory repair.
4.8. After one year of use,the high temperature fan should calibrate the impeller balanced and spindle curvature
4.9. Ensure personal safety,stopped after the maintenance
