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Fujitsu ASU-RLF Disassembly Instructions Manual

Coil cleaning
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Fujitsu ASU-RLF Coil Cleaning

Disassembly Instructions

ALWAYS SHUT OFF POWER BEFORE ANY WORK
IS PERFORMED

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  Summary of Contents for Fujitsu ASU-RLF

  • Page 1: Disassembly Instructions

    Fujitsu ASU-RLF Coil Cleaning Disassembly Instructions ALWAYS SHUT OFF POWER BEFORE ANY WORK IS PERFORMED...
  • Page 2 Remove the front cover and the air filters. Next remove the 2 screws on the right and 1 screw on the left, see arrows.
  • Page 3 After removing all the screws, take a flat head screwdriver and locate where the top of the cover clips in. Gently pry the top of the cover off at the locations shown. The pull the the cover clips in. Gently pry the top of the cover off at the locations shown. The pull the cover off, top first.
  • Page 4 Once the cover is off Remove the 3 This is how it should remove the room and screws for the look once you remove pipe thermistors off the electrical section. the control box. top right of the unit. Pipe thermistor Room Temperature thermistor...
  • Page 5 Next you need to separate the coil from the blower wheel and drain pan. Remove the 2 screws on the right and 2 screws on the left. Remove the fan motor cover screw. Disconnect the field wires from the terminal block and make sure they are not attached to the...
  • Page 6 Once all screws have been removed, the fan section should be able to drop out of the unit. Once all screws have been removed, the fan section should be able to drop out of the unit. Unclip the bottom of the unit from the wall bracket. Disconnect the drain line from the back of the unit.
  • Page 7 Cleaning the Evaporator Coils Fix a plastic sheet around the Use a non-acidic HVAC coil cleaner. evaporator enough to protect the Follow the instruction on the cleaning wall, floor, and a reasonable area solution on how to apply and rinse the around the evaporator.
  • Page 8 Cleaning the Drain Pan Example: Simple Green Remove the blower wheel from the from the drain pan and remove the blower motor. Use a ready to use non-acid cleaner, make sure to follow the instructions on the cleaning solution. Make sure to dry the drain pan before re-installing.
  • Page 9 Cleaning the Blower Wheel Be sure to clean the blower wheel with After cleaning the blower wheel, be sure warm water and allow the blower wheel to lubricate the fan holder with a time to dry before placing the wheel in silicone grease.
  • Page 10 Basic maintenance procedures will be found -IN ALL OPERATION MANUALS. Basic maintenance procedures will be found -IN ALL OPERATION MANUALS. WARRANTY- Does not cover Mold and Mildew growth. Fujitsu General America Inc. 353 Route 46 West, Fairfield NJ 07004 Phone: (973) 575-0380 Fax: (973) 575-2194 Email: ServiceHVAC@fujitsugeneral.com...