Extender - Danfoss.com

EN- Installation instructions
About the instructions
1 Introduction
This instruction describes the installation of Extender
References to chapters and sections within the instructions are marked in italics, e g : 1 About the instructions.
References to menu options in the heat pump’s control system are in upper case, e g : INFORMATION ->
OPERAT -> AUTO
All figures and tables in the instructions are numbered to help installers and service technicians refer to them
easily
2 Symbols
BBB B
ABB B
DBB B
EBB B
Combi/Extender
The instructions contain different warning symbols, which, together with text, indicate to the user that there
are risks involved with actions to be taken
The symbols are displayed to the left of the text and four different symbols are used:
Hazardous electrical voltage! Indicates an immediate danger that leads to fatal or serious injury if necessary
measures are not taken
Danger! Risk of personal injury! Indicates a possible danger that can lead to fatal or serious injury if necessary
measures are not taken
Risk of installation damage Indicates a possible hazard that can lead to item damage if necessary measures
are not taken
Information regarding making the handling of the installation easier or a possible operational technical disadvantage
3 Terminology
The instructions contain terms throughout that designate components and functions The table lists the most
common terms that are used in the instructions
Term Meaning
Heating system The circuit that generates heat to the property or to the water heater
Supply line The heating system’s supply line with flow direction to radiators/under floor heating or
water heater
Return line The heating system’s return line with flow direction from radiators/under floor heating or
water heater
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