Mitsubishi Electric EHST20C-VM6HB.UK Manuals

Manuals and User Guides for Mitsubishi Electric EHST20C-VM6HB.UK. We have 1 Mitsubishi Electric EHST20C-VM6HB.UK manual available for free PDF download: Service Manual

Mitsubishi Electric EHST20C-VM6HB.UK Service Manual

Mitsubishi Electric EHST20C-VM6HB.UK Service Manual (91 pages)

CYLINDER UNIT

Brand: Mitsubishi Electric | Category: Heat Pump | Size: 11.94 MB

Table of Contents

Table of Contents
1
Service Manual
1
Reference Manual
2
Safety Precaution
3
Specifications
6
Part Names and Functions
7
Outlines and Dimensions
10
Service Access Diagrams
10
Wiring Diagram
11
- Automatic Switch to Backup Heat Source Operation
  23
- Dip Switch Setting
  23
Field Wiring
24
Water System Diagram
28
Controls
33
- Main Controller Menu Tree
  34
- Manual Operation
  36
- Service Menu
  36
- Auxiliary Settings
  37
- Function Settings
  37
- Thermistor Adjustment
  37
- Electric Heater (DHW)
  38
- Electric Heater (Heating)
  38
- Mixing Valve Control
  38
- Pump Speed
  38
- Freeze Stat Function
  39
- Heat Source Setting
  39
- Operation Settings
  39
- Simultaneous Operation
  39
- Cold Weather Function
  40
- Room Temp Control (Heating)
  40
- Demand Control (IN4)
  41
- External Input Settings
  41
- Floor Dry up Function
  41
- Outdoor Thermostat (IN5)
  41
- Error History
  42
- Running Information
  42
- Summary of Settings
  42
- Thermistor Reading
  42
- Manual Reset
  43
- Password Protection
  43
- Resetting the Password
  43
- SD Card
  44
- Indoor Unit Switch Setting Display
  46
- Output Signal Display
  48
- Mixing Valve State
  50
- Input Signal Display
  51
- Emergency Operation (Boiler)
  52
- Emergency Operation (Heater)
  52
- Malfunction Diagnosis Method by Main Controller
  53
- Test Run
  53
Troubleshooting
53
Disassembly Procedure
69
Supplementary Information
85
Engineers Forms
86
Service and Maintenance
86
Annual Maintenance Log Book
88

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