Contents
Packing . . . . . . . . . . . . . . . . . . . . . . . .6
Unpacking and supplies . . . . . . . . . . . . . . . . 6
Denitions . . . . . . . . . . . . . . . . . . . . . . . 6
General characteristics . . . . . . . . . . . . . . . .7
Description. . . . . . . . . . . . . . . . . . . . . . 14
Operating principle . . . . . . . . . . . . . . . . . 16
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installation of refrigeration connections . . . . . . . 18 Installation of the outdoor unit . . . . . . . . . . . . 20
Installation of the hydraulic unit . . . . . . . . . . . 22
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Cable dimensions and protection rating . . . . . . . 39
Electrical connections on the outdoor unit side . . . 40
Electrical connections on the hydraulic unit side . . 42
Outdoor sensor . . . . . . . . . . . . . . . . . . . 44
Room sensor (option) . . . . . . . . . . . . . . . . 44
Controller Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
User Interface . . . . . . . . . . . . . . . . . . . . 48
Display Description . . . . . . . . . . . . . . . . . 49
Installer Menu . . . . . . . . . . . . . . . . . . . . 50
Navigating the Menus . . . . . . . . . . . . . . . . 50
Modifying Settings . . . . . . . . . . . . . . . . . . 51
Temperature control . . . . . . . . . . . . . . . . . 52
This appliance must be installed by qualied personnel holding a certicate of competence in the handling
of refrigerants.
Description of the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Refrigeration connections and lling the installation with gas . . . . . . . 24
Rules and precautions . . . . . . . . . . . . . . . . 24
Shaping the refrigeration pipes . . . . . . . . . . . 24
Checks and connection . . . . . . . . . . . . . . . 27
Filling the installation with gas . . . . . . . . . . . . 28
Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Connecting the hydraulic unit to the heating circuit . 34
Filling and bleeding the installation . . . . . . . . . 35
Heating circulation pump speed settings . . . . . . 36
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Installation manual "1872 - EN"
Alféa Extensa A.I. Heat Pump
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