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Thermia ATEC User Manual

Thermia ATEC
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User manual
Atec
086L0130 Rev. 1 EN

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Thermia ATEC Specifications

General IconGeneral
BrandThermia
ModelATEC
CategoryHeat Pump
LanguageEnglish

Summary

Foreword

Safety Precautions

Installation and Maintenance Safety

Only authorized installers may perform installation, operation, maintenance, and repair.

System Modifications

Only authorized installers may modify heat pump unit, water/electrical installations, and safety valve.

Safety Valve Precautions

Never block the safety valve's overflow pipe. Water released can be hot.

About Your Heat Pump

Components and Functions Overview

Description of the heat pump's outdoor unit components and their functions.

Control Unit Variants

Details on Atec Standard, Atec Plus, and Atec Total control units and their components.

Heating Functionality

The heat pump produces heat for the house and hot water, prioritizing hot water.

Hot Water Functionality

Details on how the heat pump produces hot water, including prioritization and tank heating.

Defrost Function

Automatic function to defrost the air heat exchanger using house heating system energy.

Cooling Function

How the heat pump produces cooling, controlled by the control unit and temperature.

Speed Controlled Fan Operation

Fan speed adjustment based on refrigerant circuit temperatures for optimal performance.

Electronic Expansion Valve Function

Regulates refrigerant pressure and temperature for optimal energy flow into the circuit.

Auxiliary Heat System

Description of the immersion heater system and its power stages for auxiliary heating.

Speed (rpm) Control for Circulation Pump

Ensures optimum heating system conditions by adjusting circulation pump speed.

Control System

Control Panel Keypad Functions

Explanation of the '+' , '-' , '>' , and '<' buttons for menu navigation and value adjustment.

Control Panel Indicator Modes

Description of the indicator's three modes: not lit, continuously green, and flashing green.

Display Symbols and Information

Explains symbols and messages shown on the heat pump's display for operation status and alarms.

Display Messages Explained

Details the meaning of various messages displayed on the control panel.

Main Menu Navigation

How to navigate and select sub-menus like INFORMATION, OPERAT., HEATING, etc.

Settings and Adjustments

Setting Operating Mode

Describes how to select operating modes like OFF, AUTO, COMPRESSOR, AUX. HEATER, HOT WATER, MANUAL TEST.

Adjusting Indoor Temperature

Adjusting the heat curve via HEATING sub-menu or ROOM value for desired indoor temperature.

Heating Menu Parameters

Details parameters like CURVE, MIN, MAX, CURVE 5, CURVE 0, CURVE -5, HEAT STOP.

Adjusting ROOM Values

Temporary adjustments to indoor temperature by changing the ROOM value.

Distribution Circuit Settings

Controlling heating and cooling for two distribution circuits individually.

Hot Water Control and TOP-UP

Using the HOT WATER function and activating TOP-UP for immediate hot water heating.

Cooling Function Control

Controlling cooling with START, STOP, and COOLINGMODE ACTIVE settings.

Reading Temperatures

Displaying various temperatures like outdoor, supply line, return line, and system supply.

Reading Operating Time

Shows total operating hours for the compressor and auxiliary heaters since installation.

Manual Defrost Operation

Procedure to manually initiate a defrosting cycle from the control computer.

Calendar Functions

Controlling functions like blocking hot water, EVU stop, noise reduction, and temperature via calendar.

Alarm History

Displays information about up to 10 alarms, including type, time, and date.

Regular Checks

Checking Operation Status

Monitoring the alarm indicator and display messages for correct operation and errors.

Checking Heating Circuit Water Level

Monthly check of line pressure using manometer, topping up if below 0.8 bar.

Checking Safety Valves

Checking safety valves at least four times a year to prevent clogging.

Leakage Response

Procedure for handling leaks in hot water pipes: close shut-off valve and contact installer.

Cleaning Heating Circuit Strainer

Instructions for cleaning the strainer twice a year, including safety precautions.

Default Control Computer Settings

Installation Protocol

Checklist

Service Schedule

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