Table of Contents
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Technical Documentation
Operating instructions
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Fully automatic combi-heating for
pellets and split logs
4,5 – 38 kW nominal output
Thank you for choosing one of our products. Before installing
and operating your boiler please read carefully all
instructions, assembly and installation instructions and
operating instructions for the
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In this way you will avoid unnecessary damage caused by
incorrect installation or operation.
SHT Heiztechnik aus Salzburg GmbH
Version M21/HB M27/GB
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Table of Contents
Related Manuals for SHT Thermodual TDA 30
Summarization of Contents
Important Information for Installation and Operation
Professional Installation & Commissioning
Emphasizes the need for trained specialists for correct installation and operation.
Correct Operation and Safety
Highlights boiler safety, childproofing, and warranty voidance for improper use.
System Requirements Overview
Covers fuel, setup, flue, and general safety instructions for proper system function.
Technical Data and Features
Technical Data
Details on the boiler's nameplate, serial number, and technical specifications.
Functional Description and Technical Features
Explains the boiler's operation modes, components, and core functionalities.
3.1 Operating Modes
Describes the standard and alternative operating modes: Pellets+Logs, Logs only (auto/manual ignition).
Safety Features and Frost Protection
Boiler Safety Monitoring
Details temperature and oxygen sensors, and automatic restart functions.
Frost Protection Criteria
Explains how the system protects against frost for DHW, heating circuits, and the boiler.
System Requirements
Application Possibilities
Suitable applications for the boiler, including residential and commercial use.
Installation Site Requirements
Specifies needs for central heating room, water system, and flue connection.
Environmental Conditions
Details required room/ambient temperatures, humidity, and flue specifications.
Fuel, Quality, and Air Supply
4.6 Combustion Air Supply
Importance of adequate combustion air and ventilation in the heating room.
4.7-4.11 Fuel, Quality, and Power
Covers pellet/log quality, return flow boost, cleaning, and mains voltage requirements.
Heating with Wood and Initial Commissioning
4.12 Heating with Wood for the Environment
Discusses wood as an eco-friendly fuel and the physical process of wood combustion.
5 Initial Commissioning
Procedures and important points for the initial setup and commissioning of the boiler.
Pellet Conveyor Systems and Storage
6 Pellet Conveyor Systems
Description of different pellet conveying systems and optional storage solutions.
Control and Heating Operation
7.1 Control Device and Home Screen
Overview of the boiler's control unit, display, and main screen layout.
7.3 Home Screen Details
Detailed explanation of data points displayed on the boiler's home screen.
7.3.9-7.3.12 Burner & System Status
Information on burner modes, activity, chamber temperature, and menu access.
7.4 Operation Navigation and Controls
Guide to navigating menus, changing settings, and understanding button functions.
7.5 Menu Map and Button Testing
Overview of the control system's menu structure and testing button functions.
7.6 Domestic Hot Water Settings
Configuration options for domestic hot water temperature and operation modes.
7.7 Heating Circuit Operation
Settings and monitoring for heating circuits, including operation modes and temperatures.
7.8 Second Buffer Monitoring
Details on monitoring a second buffer tank and its related functions.
7.9 Date and Time Settings
Instructions for setting the current date and time, including automatic daylight saving.
7.10 Pellet Hopper Refill
Management of the pellet hopper, including refill times and system status.
7.11 Fuel Selection Modes
Options for selecting primary fuel use: Pellet/Logs, Only Logs with various ignition methods.
7.12 Operation Hours and Consumption
Tracking of boiler operation hours, pellet consumption, starts, and log operation.
7.13 Buffer Monitoring
Display and configuration of buffer tank status, temperatures, and burner start settings.
7.14 Second Boiler Operation Modes
Configuration for operating a second boiler in backup, peak load, or sequential modes.
7.15 Language and 7.16 Screed Drying
Setting the display language and activating the screed drying function.
7.17 Customer Service and Diagnostics
Accessing diagnostic tests, data logging, and expert level settings.
TC3 Report System: Info, Notice, Questions, Errors
8.1 List of INFO Reports
Explains INFO messages providing user understanding of boiler processes and actions.
8.2 List of Notice Reports
Explains NOTICE messages indicating system requirements or warnings.
8.3 List of Questions
Poses user action questions, like confirming log filling for proper operation.
8.4 List of ERROR Reports
Lists error codes, their causes, and recommended actions for technical failures.
Operation of Filling Hatch and Ash Door
9.1.1 Operation of the Filling Hatch
Step-by-step guide for opening and closing the fuel chamber door safely.
9.1.2 Operation of the Ash Door
Instructions for safely opening and closing the ash door for cleaning.
Operating Modes and Stoking Instructions
10 Operating Modes of the thermodual TDA
Overview of the different operational modes available for the TDA boiler.
10.1 Stoking for Automatic Log Ignition
Guide on preparing the boiler for automatic log ignition after pellet start.
10.2 Stoking Instructions – Manual Ignition
Steps for manual ignition of logs using paper and kindling wood.
10.3 Loading Split Logs During Operation
Procedures and conditions for loading logs during active operation while minimizing smoke.
System Resets and Measurements
10.4 Reset STL and Change Fuse
Instructions for resetting the Safety Temperature Limiter (STL) and replacing blown fuses.
11 Chimney Sweep Measurement
Procedure for performing chimney sweep measurements during boiler operation.
Desired Power Setting
How to adjust the desired burner power output for optimal performance.
Measurement Status and Troubleshooting
Explains measurement status displays and troubleshooting for boiler temperature and oxygen values.
Deactivate Measurement Operation
How to manually deactivate measurement operation or how it deactivates automatically.
Cleaning, Servicing, and Care
12.1 Cleaning and Care
General advice on cleaning the boiler for efficiency and preventing malfunctions.
12.2 Ash Disposal and Combustion Chamber Cleaning
Steps for removing ash and cleaning the combustion chamber and heat exchanger.
12.3 Cleaning Fuel Chamber and Heat Exchanger Areas
Detailed instructions for cleaning fuel chamber side panels and air ducts.
12.4 Clean Feeding System - Grid
Procedure for cleaning the pellet hopper grid and related components.
12.5 Annual Servicing
Recommendations for annual servicing of electrical and mechanical components by qualified personnel.
Conformity, Warranty, and Inspection
13 CE Declaration of Conformity
Manufacturer's declaration of compliance with relevant EU directives and standards.
14 Warranty and Guarantee
Details on the manufacturer's warranty, coverage, exclusions, and claim procedures.
15 Periodic Inspection
Advice to observe local laws and consult qualified engineers for periodic inspections.
Important Points and Contact Information
16 Overview of Most Important Points
Summary of key operational, safety, and installation guidelines for the TDA boiler.
17 Customer Services and Spare Parts
Information on contacting distributors for service and spare parts.
18 Your Specialist Company
Contact details for SHT Heiztechnik aus Salzburg GmbH.
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