2902-28 Adjustable Motor and Sensor Series Service Manual
Contents
1. 2902 28 Adjustable Motor and Sensor Series Service Manual Aerix Maintenance and Safety How to Remove the Cover Motor Maintenance Motor Brushes Replacement Motor Replacement How to Replace the Heating Element How to Replace the Circuit Board Maintenance The following slides contain instructions and images to service the components of 2902 28 hand dryers Consult installation instructions before using the equipment Service Manual for 2902 28 How to Remove the Cover Cover Specification Cast Iron White Porcelain 2902 280000 replacement P N P15 411 Steel White Enamel 2902 287300 replacement P N P15 412 Stainless Steel Satin 2902 287400 replacement P N P15 413 Reminder Disconnect the power to the unit before removing the cover Loosen screws with security wrench provided Replacement Part Number P15 419 t e Note To loosen screws Turn wrench in Clockwise direction Screws will tighten to base plate and loosen from inside of cover Removing the Cover Cont Remove the cover taking care to avoid damaging the cover 3 or internal parts Service Manual for 2902 28 How to Replace the Motor Brushes Motor Brushes Specification e he motor brushes have a theoretical life of 3000 hours and must be changed if they are shorter than 0 2 inches Motor Brushes are installed on the side of the motor Re2. ainst overheating 302 F disconnect Replacement Part Number P15 415 BRADLEY B Reminder Disconnect power to the unit before removing the cover HOW to Remove Ihe Heating Element Remove the bar code label located on the volute How to Remove the Heating Element Cont Loosen the fan wheel Turbine by using the 2 Allen key provided Turbine Replacement Part Number P15 418 How to Remove the Heating Element Cont Disconnect the ground cable How to Remove the Heating Element Cont Disconnect all the cables from the motor that connect to the terminal block including the brown wire How to Remove the Heating Element Cont Remove the clip from the circuit board Remove the circuit board by pressing on the flaps How to Remove the Heating Element Cont Cut the Bridle E S wax Open the volute by separating each side How to Remove the Heating Element Cont Carefully remove the heating element from F inside the volute To replace the heating element take the replacement and follow the above steps in reverse Service Manual for 2902 28 How to Replace the Circuit Board Circuit Board Specification Infrared sensor Vandal resistant operating system will cause this unit to automatically shut off if sensor is completely blocked 60 seconds e Fully adjustable detection
3. placement Part Number P15 417 Reminder Disconnect the power to the unit before removing the cover step 1 Press the clip which is Step 2 Remove the clip to the covering the brushes side until you can see the brushes inside Step 3 Remove the brushes To replace the brushes take the replacement and follow the above steps in reverse Service Manual for 2902 28 How to Remove the Motor BRADLEY B Motor Specification Universal Brush Motor Class A 1 3 HP 250 W RPM may be manually adjusted by means of a potentiometer 3800 8200 r p m e Safety thermal cut off which temporarily disables the dryer Replacement Part Number P15 414 BRADLEY B Reminder Disconnect power to the unit before removing the cover Removing the Motor Remove the bar code label located on the volute Removing the Motor cont Loosen the fan wheel by using the 2 Allen key provided Release the lateral springs that hold the motor in place Carefully remove the motor from its location be careful not to damage the fan wheel Remove the fuse cable from the motor To replace the motor take the replacement and follow the above steps in reverse Service Manual for 2902 28 How to Remove The Heating Element Heating Element Specification e Material Waved wire NiCr heating element e Automatic resetting circuit breaker protects ag
4. range 2 8 inches Replacement Part Number P15 416 BRADLEY B Reminder Disconnect power to the unit before removing the cover Remove all the cables from the circuit board and the motor To replace the circuit board take the replacement and follow the above steps in reverse
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