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Contents

1 Foreword ................................................................................................... 3

2 Safety precautions ...................................................................................... 4

2.1 Installation and maintenance ........................................................................ 4

2.2 System modifications ................................................................................... 5

2.3 Safety valve ................................................................................................ 5

3 About your heat pump ................................................................................ 6

3.1 Components and functions ............................................................................ 6

4 Control system ......................................................................................... 12

4.1 Keypad ..................................................................................................... 12

4.2 Indicator ................................................................................................... 12

4.3 Display ..................................................................................................... 13

4.4 Main Menu ............................................................................................... 15

5 Settings and adjustments .......................................................................... 16

5.1 Setting operating mode ............................................................................... 16

5.2 Adjusting the indoor temperature ................................................................. 17

5.3 Distribution circuit 1 and 2 ......................................................................... 20

5.4 Hot water ................................................................................................. 20

5.5 Cooling ..................................................................................................... 20

5.6 Reading off temperatures ............................................................................ 21

5.7 Reading the operating time ......................................................................... 21

5.8 Manual defrost, outdoor unit ....................................................................... 21

5.9 Calendar ................................................................................................... 22

5.10 Alarm history .......................................................................................... 23

6 Regular checks ........................................................................................ 24

6.1 Checking operation .................................................................................... 24

6.2 Check the water level in the heating circuit ................................................... 25

6.3 Checking safety valves ............................................................................... 25

6.4 In the event of leakage ............................................................................... 26

6.5 Cleaning the strainer for the heating circuit ................................................... 26

7 Default setting in the control computer ........................................................ 28

8 Installation protocol .................................................................................. 29

9 Check list ................................................................................................ 30

10 Service schedule .................................................................................... 32

086L0130 Rev. 1 EN – 1

Thermia ATEC User Manual

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