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Siemens ALBATROS QAA73.110 User Manual

Siemens ALBATROS QAA73.110
70 pages
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Edition 1.2
Device series A
CE1P2284en
10.07.2002
Siemens Building Technologies
HVAC Products
QAA73.110
Room Unit for Boiler Control with OpenTherm
Interface
Basic Documentation

Table of Contents

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Siemens ALBATROS QAA73.110 Specifications

General IconGeneral
BrandSiemens
ModelALBATROS QAA73.110
CategoryThermostat
LanguageEnglish

Summary

Summary of QAA73.110 Room Unit

Features of the Room Unit

Lists the key features and capabilities of the QAA73.110 room unit.

Handling the QAA73.110 Room Unit

Installation Procedures

Step-by-step guide for installing the room unit.

Electrical Installation Details

Covers the electrical connections and regulations for installation.

Operating the Room Unit

Explains the operating elements and display levels of the room unit.

Communication with Boiler Control

Details the communication protocols and modes used with the boiler control.

Heating Engineer Parameter Settings

Covers parameter settings for heating engineers for system configuration.

Commissioning the System

Outlines the prerequisites and functional checks for system commissioning.

Troubleshooting Operational Faults

Provides guidance for identifying and resolving common operational faults.

Description of Enduser Settings

Nominal Room Temperature Setpoint Adjustment

How to adjust the main room temperature setpoint using the knob.

Frost Protection Setpoint for Room Temperature

Setting a minimum temperature to prevent freezing in rooms.

Setting Switching Times

Defining the on/off times for heating and DHW circuits.

Indication of Faults and Error Codes

Explains how faults are indicated and lists error codes.

Description of Heating Engineer Settings

Heating Curve Slope Adjustment

Setting the slope of the heating curve for weather-compensated control.

Flow Temperature Limitations HC1/HC2

Setting minimum and maximum limits for flow temperatures.

Parallel Displacement of Heating Curve

Adjusting the heating curve to better match room temperature setpoints.

Room Influence Configuration

Defining how room temperature affects heating circuit control.

Adaptation of the Heating Curve

Enabling automatic adjustment of the heating curve.

Optimum Start Control Settings

Limiting the forward shift for optimum start control.

Optimum Stop Control Settings

Limiting the forward shift for optimum stop control.

Legionella Function Configuration

Enabling periodic heating to kill legionella bacteria.

Description of OEM Settings

Maximum/Minimum Room Temperature Setpoints

Adjusting room temperature setpoints within a defined range.

Gain Factor of Room Influence (KORR)

Defines the influence of room temperature deviations on the system.

Boost of Room Temperature Setpoint (DTRSA)

Temporarily raising setpoint for quicker room heating.

Maximum DHW Setpoint (TBWmax)

Limiting the nominal DHW temperature setpoint.

Setpoint for Legionella Function

Setting temperature for periodic heating to kill legionella.

Functions of the QAA73.110 Room Unit

Automatic 24-Hour Heating Limit

Fast-acting savings function switching off heating when demand is low.

Frost Protection Overview

Functions to prevent freezing of plant and rooms.

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