Table Of Contents - Mitsubishi Electric MUZ-FH09NA Service Manual

Table of Contents

Table Of Contents1
Outdoor Unit1
Service Manual1
Technical Changes2
Part Names And Functions3
Specification4
Test Condition5
Operating Range5
Power Supply5
Outlines And Dimensions6
Required Space7
Wiring Diagram8
Muz-Fh09Na Muz-Fh12Na8
Muz-Fh09Nah Muz-Fh12Nah8
Muz-Fh15Na9
Muz-Fh15Nah10
Refrigerant System Diagram11
Max. Refrigerant Piping Length12
Max. Height Difference12
Additional Refrigerant Charge12
Data13
Performance Data13
Cooling Capacity13
Cooling Capacity Corrections13
Heating Capacity14
Performance Curve15
Cooling15
Heating16
Condensing Pressure17
Standard Operation Data19
Capacity And Input Correction By Inverter Output Frequency20
Correction Of Cooling Capacity20
Correction Of Cooling Total Input20
Correction Of Heating Capacity20
Actuator Control21
Outdoor Fan Motor Control21
R.v. Coil Control21
Relation Between Main Sensor And Actuator21
Service Functions22
Change In Defrost Setting22
Pre-Heat Control Setting22
Changing Defrost Finish Temperature22
Troubleshooting23
Cautions On Troubleshooting23
Before Troubleshooting23
Failure Mode Recall Function24
Judgment Of Indoor/Outdoor Abnormality24
Releasing The Failure Mode Recall Function24
Deleting The Memorized Abnormal Condition24
Flow Chart Of The Detailed Outdoor Unit Failure Mode Recall Function25
Operational Procedure25
Outdoor Unit Failure Mode Table26
Troubleshooting Check Table28
Trouble Criterion Of Main Parts30
Troubleshooting Flow31
How To Check Inverter/Compressor31
Check Of Open Phase31
Check Of Compressor31
Check Of Compressor Winding32
Check Of Compressor Operation Time32
Check Of Compressor Start Failure32
Check Of Outdoor Thermistors33
Muz-Fh09/1233
Muz-Fh1533
Check Of R.v. Coil34
Unit Operates Cool Mode Even If It Is Set To Heat Mode34
Check Of Outdoor Fan Motor35
Check Of Power Supply36
Check Of Lev (Expansion Valve)37
Check Of Inverter P.c. Board38
How To Check Miswiring And Serial Signal Error39
Check Of Defrost Heater40
Check Of Outdoor Refrigerant Circuit40
Electromagnetic Noise Enters Into Tv Sets Or Radios41
Test Point Diagram And Voltage42
Inverter P.c. Board42
Back Side Of Unit42
Front Side Of Unit42
Disassembly Instructions44
Terminal With Locking Mechanism" Detaching Points44
Removing The Cabinet44
Removing The Inverter Assembly, Inverter P.c. Board45
Removing R.v. Coil45
Removing The Discharge Temperature Thermistor46
Removing Outdoor Fan Motor47
Removing The Compressor And 4-Way Valve47
Removing Inverter Assembly, Inverter P.c. Board And Relay P.c. Board49