This document provides maintenance procedures for servicing a room air conditioner. It outlines safety precautions and describes the parts to be considered for maintenance. The procedures include disconnecting power, accessing the AC unit, removing and cleaning the air filter, reconnecting power, and testing the unit. A checklist is also provided to verify the air conditioner is working properly following maintenance.

1. MAINTENANCE DEPARTMENT
ROOM AIR
CONDITIONER SERVICE
PROCEDURE

2. 1.- SAFETY PRECAUTIONS
2.- PARTS DESCRIPTION .
3.- MAINTENANCE PROCEDURE.
4.- TEST RUN.
MAINTENANCE DEPARTMENT
CONTENT

3. MAINTENANCE DEPARTMENT
SAFETY INSTRUCTIONS
3. - Make sure the main power switch is in the off position
before starting.
4. - Do not tray to go any further, or solve any other issue
related to the AC machine, or any component which are not
mentioned in this procedure.
5.- Do not touch any electrical parts, siwtches or buttons
which are not mentioned in this procedure.
1.- Safety equipment must be worn all the time. (Gloves,
proteccion googles and breathing mask )
2. -Do not attemp to carry out the procedure until the
machine is completly turned off

4. A: AIR FILTER
MAINTENANCE DEPARTMENT
YEAR: 2014
PARTS TO BE CONSIDERED IN THE MAINTENANCE PROCESS
PARTS DESCRIPTION
EQUIPMET DESCRIPTION
MITSUBISHI ELECTRIC AIR CONDITIONER INDOOR UNIT
MODEL: PEFY-P20VMA-E REFRIGERANT: R410A

5. 3. -REMOVE THE AIR FILTER LOCATED IN THE AIR SUCCION LINE
VENTILATION DUCT
AIR SUCCION
MAINTENANCE DEPARTMENT
1 . -DISCONECT THE POWER & ENSURE THE EQUIPMET CAN NOT BE TURNED
ON DURING THE PROCES.
2. -GET ACCES TO THE AC. MACHINE LOCATED IN THE ROOF OF THE ROOM,
REMOVING THE SCREWS LOCATED IN THE CORNERS OF THE ACCESS GRILL.

6. 6.- PLACE BACK THE AIR FILTER.
MAINTENANCE DEPARTMENT
4. -CLEAN THE FILTER AND THE VENTILATION DUCT FROM ANY DUST USING A
HOOVER (WATER IT IS NOT NECCESARY )
7. -CONNECT THE POWER & ENSURE THE PROPER OPERATION OF THE
EQUIPMENT

7. Ensure all tools were collected
Switch main the power ON
Swicth the unit ON
Check the air flow it is constant
Sign the maintenance Report
MAINTENANCE DEPARTMENT
CHECK LIST POST MAINTENANCE
Set the unit in cooling and make sure it is working
properly