Table Of Contents - Mitsubishi Electric MLZ-KP25VF Service Manual

Table of Contents

Table Of Contents1
Technical Changes2
Preparation Before The Repair Service2
Precautions During The Repair Service2
Safety Precaution3
Cautions Related To New Refrigerant3
Warning For Service3
Cautions For Unit Using R32 Refrigerant3
Checks On The Refrigeration Equipment4
Checks On Electrical Devices4
Repairs To Sealed Components4
Detection Of Flammable Refrigerants4
Removal And Evacuation5
Charging Procedures5
Decommissioning5
Labelling6
Recovery6
Part Names And Functions7
Accessories7
Mlz-Kp25Vf7
Mlz-Kp35Vf7
Specification8
Specifications And Rated Conditions Of Main Electric Parts8
Mlz-Kp50Vf 5. Noise Criteria Curves9
Outlines And Dimensions10
Wiring Diagram11
Refrigerant System Diagram12
Service Functions13
Timer Short Mode13
How To Set Remote Controller Exclusively For A Particular Indoor Unit13
How To Set The Remote Controller13
Auto Restart Function14
How to Disable "AUTO RESTART FUNCTION"14
P.c. Board Modification For Changing Airflow Volume15
How To Change Dip Switch (Sw3) Setting (Factory Setting Is Normal)15
P.c. Board Modification For Changing Airflow Direction Adjustment15
Microprocessor Control16
Wireless Remote Controller16
Indoor Unit Display Section16
Cool Operation17
Dry Operation17
Fan Operation17
Heat Operation17
Auto Vane Operation18
Horizontal Vane18
Vane Motor Drive18
Positioning18
Vertical Vane19
Drain Pump/ Float Sensor Control19
Float Sensor19
Timer Operation20
How To Set The Time20
Program Timer20
To Release The Timer20
Weekly Timer Operation21
How To Set The Weekly Timer21
Checking Weekly Timer Setting22
I-Save22
Emergency/Test Operation23
3-Minute Time Delay Operation23
Troubleshooting24
Cautions On Troubleshooting24
Failure Mode Recall Function25
Flow Chart Of Failure Mode Recall Function For The Indoor/Outdoor Unit25
Flow Chart Of The Detailed Outdoor Unit Failure Mode Recall Function26
Indoor Unit Failure Mode Table27
Instruction Of Troubleshooting28
Troubleshooting Check Table29
Trouble Judgement Criteria Of Main Parts30
Operation Indicator30
Check Of Indoor Fan Motor31
Check Of Indoor Electronic Control P.c. Board And Indoor Fan Motor33
How To Check Miswiring And Serial Signal Error34
Check Of Float Sensor35
Electromagnetic Noise Enters Into Tv Sets Or Radios36
Test Point Diagram And Voltage37
Indoor Electronic Control P.c. Board37
Receiver P.c. Board37
Display P.c. Board37
Disassembly Instructions38
Detaching Method Of The Terminal With Locking Mechanism38
Removing The Intake Grille38
Removing The Grille39
Installing The Grille39
Check After Installing40
Removing The Heat Exchanger And Stabilizer41
Removing The Horizontal And Vertical Vane Motors41
Removing The Drain Pump And Float Sensor42
Removing The Fan Motor And Line Flow Fan42