Industrial / Motor Drives
User Manual for Danfoss UnoFloor Metering Comfort / Control
Quick guide for Danfoss UnoFloor Metering Comfort and Control systems. Includes installation, wiring diagrams, technical specifications, and hydronic balancing instructions.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The Danfoss UnoFloor Metering system is a pre-assembled, pressure-independent stainless steel distribution unit designed for floor heating. It is available in two main versions: Comfort and Control. The system is delivered pre-mounted in a cabinet (in-wall or on-wall) to minimize installation time and reduce the risk of faults. It includes a manual air vent, drain valve, and a flow meter to maintain designated flow rates.
Product Description
The system provides reliable hydronic balancing and correct heat distribution even under partial load. It features an integrated domestic hot water (DHW) metering line with an MTCV valve for hot water circulation. The Comfort version utilizes an ICON Wiring Center, while the Control version uses an ICON2 Advanced Master Controller for more advanced management.
Installation and Setup
The units are available in configurations ranging from 4 to 12 circuits, with left or right-hand versions. The cabinet must be installed in-wall or on-wall according to the dimensions provided in the technical specifications. The system is designed as a plug & play construction, meaning the manifold and associated valves are pre-mounted.
Wiring and Connections
Comfort Version (ICON Wiring Center): Designed for hydronic floor heating using 230V thermostats and actuators. It can connect up to 14 thermal actuators from up to 8 room thermostats. It includes a 230V circulation pump output and voltage-free relays for boiler control.
Control Version (ICON2 Advanced Master Controller): Designed for use with wireless or wired thermostats and 230V actuators. It features automatic balancing (PWM+) based on actual room demand and requires no pre-setting on the manifold. It allows for combining wired and wireless thermostats in the same installation.
Hydronic Balancing
The AB-PM connection set is included to ensure optimal hydronic balance in horizontal loops. It provides flow limitation independent of differential pressure. The system should be sized based on the manifold's needed flow (Q) and the required differential pressure drop for the loop.
Technical Specifications
- Nominal pressure: PN 6
- Max DH supply temperature: 60 °C
- Supply voltage: 230V
- Output voltage: 230V
- Connection sizes: G ¾” (IT)
- Heating water quality: Must meet VDI2035 or Ö-NORM H5195-1 standards, fluid category ≤ 3 according to EN1717.
Manufacturer information
Danfoss A/S
Practical help
Common problems
Hydronic imbalance
Use the AB-PM set to ensure optimal hydronic balance in the loops.
Wiring errors
Ensure actuators are wired to the correct terminals on the Wiring Center or Master Controller as indicated in the wiring diagrams.
Flow rate issues
Adjust the flow meter on the manifold to maintain the designated flow rate.
Before use
- Verify the cabinet type (in-wall or on-wall) and size (790, 940, or 1140 wide).
- Check the number of circuits (4 to 12) required for the installation.
- Ensure the supply voltage is 230V.
- Confirm heating water quality meets VDI2035 or Ö-NORM H5195-1 standards.
- Ensure the AB-PM set is correctly sized based on the manifold's needed flow.
Specs in practice
- Nominal pressure (PN 6)
- The maximum operating pressure the manifold is designed to withstand.
- DH supply temperature Tmax 60 °C
- The maximum allowable temperature for the domestic hot water supply.
Images and diagrams
- Wiring diagrams illustrate the connection of actuators to the Wiring Center/Master Controller.
- Pre-setting diagrams help determine the flow and pressure drop settings for the system.
Model compatibility
- Comfort version is compatible with ICON Wiring Center and 230V thermostats.
- Control version is compatible with ICON2 Advanced Master Controller and wireless/wired thermostats.
- Compatible with 4 to 12 circuit configurations.
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.