Danfoss 014G0257 M28 Adapter User Guide
Quick guide for installing and removing the Danfoss 014G0257 M28 Adapter for Orkli valves. Learn how to mount the adapter and safely remove it from Danfoss Ally and Eco thermostats.
Table of contents
Quick guide from the manual
The Danfoss 014G0257 M28 Adapter is a specialized accessory designed to allow the installation of Danfoss Ally and Danfoss Eco smart thermostats onto Orkli valves. This guide provides the necessary steps to install the adapter and the procedure for removing it when necessary.
Installation
The adapter consists of two main parts: the M28-adapter and the K-adapter. Ensure you have both components ready before beginning the installation on your valve.

- Identify the M28-adapter and K-adapter components.
- Attach the adapter assembly to the valve.
- Ensure the connection is secure and tightened properly.
Removing the adapter
If you need to remove a pre-mounted adapter from your thermostat, follow these steps to avoid damaging the device:
- Enter Mounting Mode: Press and hold the button on the thermostat until the large 'M' symbol flashes on the display. This indicates the device is in mounting mode.
- Remove Cover: Carefully remove the thermostat cover.
- Detach: Press firmly on the release tab and unscrew the thermostat from the adapter.
Manufacturer information
Danfoss A/S
Practical help
Common problems
Ensure the thermostat is in mounting mode (large 'M' flashing on the display) before attempting to remove it.
Before use
- Verify that your radiator valve is an Orkli type.
- Ensure you are using a compatible thermostat (Danfoss Ally or Danfoss Eco).
- Confirm you have both the M28-adapter and K-adapter components.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.