Table Of Contents - Mitsubishi Electric EHST20C-VM2C.UK Service Manual

Table of Contents

Table Of Contents1
Reference Manual2
Safety Precaution3
Cautions For Service5
Additional Refrigerant Charge5
Service Tools5
Specifications6
Parts Names And Functions7
Outlines And Dimensions8
Service Access Diagrams9
Wiring Diagram10
Dip Switch Setting16
Automatic Switch To Backup Heat Source Operation16
Field Wiring17
Water System Diagram21
Local System23
Filling The Cylinder Unit24
Draining The Cylinder Unit24
Controls25
Main Controller25
Setting The Main Controller26
Main Settings Menu26
General Operation26
Service Menu29
Manual Operation29
Thermistor Adjustment30
Economy Settings For Pump30
Electric Heater (Heating)30
Electric Heater (Dhw)30
Mixing Valve Control31
Flow Sensor31
Heat Source Setting31
Pump Speed31
Operation Settings32
Heating Operation32
Freeze Stat Function32
Simultaneous Operation32
Energy Monitor Settings33
Settings Using The Main Controller33
General Description33
External Input Settings34
Running Information34
Thermistor Reading34
Summary Of Settings35
Error History35
Password Protection35
Manual Reset36
Sd Card36
Indoor Unit Switch Setting Display38
Output Signal Display40
Input Signal Display43
Indoor Unit Only Operation44
Emergency Operation44
Troubleshooting45
Test Run45
Malfunction Diagnosis Method By Main Controller45
Self Diagnosis And Action46
Troubleshooting By Inferior Phenomena52
Checking Component Parts' Function57
Thermistor Characteristics Charts59
Test Point Diagram60
Ftc (Controller Board)60
Disassembly Procedure61
Notes On Replacing The Parts83
Back-Up Operation Of Boiler84
Supplementary Information84
Engineers Forms85
Service And Maintenance85
Annual Maintenance Log Book87