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Danfoss Icon Display 24V Room Thermostat Installation Guide

A comprehensive installation and configuration guide for the Danfoss Icon Display 24V room thermostat. Includes step-by-step mounting instructions, wiring diagrams, and details on accessing the installer menu to configure temperature...

Table of contents

Manual images

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Installation steps 1-9 Page 1 Installer menu settings table Page 1 Wiring and floor sensor installation Page 1

Quick Guide from the Manual

This document provides installation and configuration instructions for the Danfoss Icon Display 24V room thermostat. The thermostat supports both bus and star wiring configurations. If a floor sensor is used, it must be installed in a conduit (gooseneck) for protection.

Installation and Demounting

Follow the steps below to install or remove the thermostat:

Installation steps 1-9
Installation steps 1-9
Wiring and floor sensor installation
Wiring and floor sensor installation
  • Installation: Follow steps 1 through 9 to mount the thermostat to the wall.
  • Demounting: Follow steps 10 through 12 to remove the thermostat from the wall.
  • Wiring: Ensure the floor sensor is placed in a conduit as shown in step 13.

Installer Menu

To access the installer menu, follow these steps:

Installer menu settings table
Installer menu settings table
  1. Press and hold the button to open the Settings menu.
  2. Press and hold the button again while in the Settings menu to enter the Installer Menu.
  • ME.1: Room temperature range limits.
  • ME.2: Product ID and version information.
  • ME.3: Link test to the main controller. Returns a percentage (0-100%); 80% or higher indicates a strong connection.
  • ME.4: Floor sensor mode:
    • Comfort mode: Uses both room and floor sensors.
    • Floor mode: User sets the desired floor temperature.
    • Dual mode: Controls radiators and floor heating circuits.
  • ME.5: Min. and max. floor temperature settings for modes in ME.4.
  • ME.6: Reference room setting. Enable (ON) if this thermostat should act as the reference for switching between heating and cooling.
  • ME.7: Cooling ON/OFF. Used to disable cooling (e.g., in bathrooms).

Manufacturer information

Danfoss A/S

Brand profile
Manufacturer website https://www.danfoss.com Support https://www.danfoss.com/en/service-and-support/ Manufacturer manuals https://www.danfoss.com/en/service-and-support/downloads/

Practical help

Common problems

Weak connection to main controller

Perform a Link Test (ME.3). A value of 80% or higher is required for a strong connection.

Floor sensor not functioning

Ensure the floor sensor is installed inside a conduit (gooseneck) as specified in the installation diagram.

Before use

  • Verify the wiring configuration (bus or star).
  • Ensure the floor sensor is installed in a conduit if applicable.
  • Access the Installer Menu (ME.4) to configure the correct floor sensor mode.
  • Check the Link Test (ME.3) to ensure communication with the main controller.

Specs in practice

ME.3 Link Test
Tests the connection quality to the main controller. 0-100% scale; 80% or higher is recommended.
ME.4 Floor Sensor Mode
Determines how the thermostat utilizes the floor sensor (Comfort, Floor, or Dual mode).
ME.6 Reference Room
When ON, this thermostat acts as the reference for heating/cooling switching.

Images and diagrams

  • Steps 1-9: Mounting procedure for the thermostat.
  • Steps 10-12: Demounting procedure.
  • Step 13: Wiring diagram showing the floor sensor installation in a conduit.

Model compatibility

  • Compatible with bus or star wiring configurations.
  • Optional floor sensor requires a 47 kΩ @ 25°C specification.

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Manual page author

Michael Turner

Technical manual editor

Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.