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YUTAMPO Series
Service manual
Hitachi YUTAMPO Series Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
General Information
General Information
General Notes
Introduction
Applied Symbols
Norms and Regulations
Product Guide
Classification of the Units
Outdoor Unit
Indoor Unit
Product Guide
Outdoor Unit
Indoor Unit
Accessory Code List
Preparation
Name of each Part
Tank Unit TAW-(190-270)RHC
Outdoor Unit RAW-35RHC
Name and Function of Control Panel
Preparing for Operation
Filling up the Tank
Turning on the Power
Setting the Language
Setting the Current Time
Setting Hot Water Temperature
Control Functions
System Diagram
Basic Operation
Operating Procedures
Stopping
Standard Operation Without Electrical Heater
DHW Heater Function
High Demand Mode
Standard Mode
Anti Legionella Function
Boost Function
Emergency Function
Night Shift Function
Circuit Pump - DHW Recirculation Function
Timers Function
Setting of Simple Timer
Setting of Schedule Timer
Central Operation Functions
Smart Function
SG Ready Function
Energy Configuration Function
Pump down Procedure Function
Quick Action Function
Inputs and Outputs
Inputs
Outputs
Operation Information
Controller Settings
About
Electrical Checks of Main Parts
Outdoor Unit
Power Circuit
Power Circuit (Low Voltage)
PCB for Power Circuit
Reversing Valve Control Circuit
Temperature Detection Circuit
Electric Expansion Valve Circuit
DC Fan Motor Control Circuit
Fan Motor
Reactor
Compressor Motor
Thermistor for Outside Air Temperature (Ta)
Thermistor for Overheat Temperature (Td)
Thermistor for Defrost (HEX) Temperature (Te)
Indoor Unit
Safety Thermostat (Water Temperature Safety Device)
Electrical Heater
DHW Thermistor
Servicing
Outdoor Unit
Procedure for Disassembly and Reassembly the Outdoor Unit
Indoor Unit
Removing the Service Cover
Replacement of the LCD Controller
Replacement the PCB
Replacement of the Electrical Heater
Replacement of the Thermistor
Replacement of the Safety Thermostat
Replacing the Mg Anode Rod
Troubleshooting
Outdoor Unit
Discharge Procedure and Power Shut off Method for Power Circuit
Troubleshooting Support
Self-Diagnosis Lighting Mode
Checking the Electrical Parts of the Outdoor Unit
Checking the Refrigerant Cycle
How to Run the Indoor Unit with the Outdoor Unit Test Switch
Service Call Q&A
Indoor Unit
Operation
Troubleshooting by Alarm Code (Related to Tank)
Troubleshooting by Protection Code (Outdoor Unit)
Maintenance Notes
Maintenance Work
Outdoor Unit
Indoor Unit
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Table of Contents
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YUTAMPO SERIES
Service Manual
Indoor unit
YUTAMPO
TAW-(190/270)RHC
Outdoor unit
RAW-35RHC
Table of
Contents
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Table of Contents
Troubleshooting
Troubleshooting
65
Troubleshooting support
68
Troubleshooting by alarm code (related to tank)
80
Troubleshooting by protection code (Outdoor unit)
82
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This manual is also suitable for:
Raw-35rhc
Taw-190rhc
Taw-270rhc
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