Danfoss UnoFloor Control Pre-Assembled Distribution Stations Installation Guide

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Installation Guide

UnoFloor Control Pre-Assembled Distribution Stations

UnoFloor

UnoFloor Basic|  UnoFloor Comfort| UnoFloor Control

Take the prefab for each apartment and put away the frame and door which are packed together for protection. The cardboard box can be used to protect frames and doors during the construction phase.

In-wall mounting

Keep the frame fixing bracket together with the frame and door!

E+F Loops
Min = 750
Max = 840

**Preparation and setup

**

Unbox the cabinet.

**Positioning

**

Adjust the height. Check the horizontal leveling.

Pipe installation

Fill, flush, and air
Before filling in the installation check all connections!
Fill the installation with water acc. to VDI 2035 one loop at a time. Flush and de-air each loop. Use the flow meters to individually shut off the loops.

Water pressure testing

Before filling in the installation check all connections!
Fill the installation with water acc. to VDI 2035 one loop at a time. Flush and de-air each loop. Use the flow meters to individually shut off the loops.

Pressure testing via drain connection
Air pressure testing
Follow national standard and safety instructions from EN 14336 Apply 0,5 bar air pressure for approx. 10 minutes and check for leakage. Possible leakages can be found with leakage spray or applying soap water.

1. All valves must be open.
2. Pressurize installation slowly.
3. Maximum 0,5 bar, keep clear.
4. Keep under pressure for approx. 10 minutes and check for leakage. Air needs to be applied to the system from outside the room of installation.

Dust cover

Put on a dust cover to protect the installation from dust, damage, and paint.

Hydronic balancing and drying screed

Pre-set LENO manual balancing valve| without mains power
Pre-set ASV differential pressure controller (basement balancing)| Pre-set AB-PM differential pressure controller (apartment balancing)| with mains power

Pre-set AB-PM differential pressure controller (apartment balancing)
---|---|---|---
Pre-set RA-N built-in valve on
SSM-F (apartment balancing)| Pre-set RA-N built-in valve on
SSM-F (apartment balancing)| Pre-set RA-N built-in valve on SSM-F (apartment balancing)| Icon™ automatic balancing, no pre-setting on manifolds (Only balancing between apartments needed!)
Very Slow
Slow drying of screed simultaneously| Slow
Average time drying screedsimultaniously| Fast
Fast drying screed simultaneously| Fast
Fast drying screed simultaneously

Sizing AB-PM

AB-PM is to be sized based on needed flow (Q) and needed differential pressure drop for the loop (Δpr).
The settings for the manifold can be found on page 5.
Max flow data are presented in the table below.
For any other Q and Δpr needed, the setting can be identified based on Fig. 1.

Loops pre-setting

Manifold, with a flowmeter

Heat up

If no mains power for the heat up period (screed drying) do not remove the red mounting split! Heat up the installation with TWA open, do not remove the retaining ring on the actuator! The plastic heat meter insert is not for permanent operation! Please exchange in case no heat meter is mounted!

Danfoss Icon™ Wiring Center 230V

Please power off the Wiring Center when during the installation!
The wiring needs to be done by an authorized electrician!
Do not forget the GROUNDING!
Connecting room thermostats
It is possible to connect up to 8 room thermostats. Power off the Wiring Center when wiring the thermostats. Detailed information could be found in the controller installation guide.

Activate TWA actuators
To activate, remove the red mounting split from twas.

Actuator wiring LEFT variant

The actuators are wired to respective terminals on the Wiring Center as below.

Danfoss Icon™ Wiring Center 230V
Basic, code no.: 088U1040, 088U1041, 088U1042.

1. 230 VAC output for the pump.
2. 230 V Thermal actuator, Normally closed (NC).

For wiring details see separate Icon™ 230V instructions
Danfoss Icon™ Wiring Center 230V
Connecting more than 2 actuators to a single thermostat/room

1. Bridge (wire) – allows the use of additional outputs (max. 5 totally per thermostat)
2. Connect the bridge to the terminal marked with.
3. Don’t connect a thermostat to the channel which you took the additional outputs from!
4. You MUST use the same phase on all Wiring Centers!

Max. number of thermostats ……………………….8
Max. number of actuators …………………………14
Supported actuator type ………… Normally closed (NC)
Internal fuse …………………………………… 3 A
Conforms with directives………..LVD, EMC, RoHS, WEEE
Supply voltage………………………….220-240 VAC
Supply frequency …………………………..50/60 Hz
The output voltage, actuators ……………………230 VAC
Ambient temp. range, in use ……………….0 to +50˚C
Storage temp. range …………………….-20 to +60˚C
Output relay, pump ………………… 230V, max. 100W
Output relay, boiler ……………Potential free, max. 2A
Outputs, setback & cooling ………..230V, when active
Input, setback & cooling* ………………………….Ext. switch input (230V rating)
Rated impulse voltage ………………………….4 kV
Temp. for ball pressure test………………………75˚C
Control pollution degree …………… Pollution degree 2
Disposal instructions ………………As electronic waste
Operating time……………….. Permanent connection

• only available on featured versions, code no.:
  088U1040.
  Full data sheet is available at www.danfoss.com.

Danfoss A/5
Heating Segment
heating.danfoss.com
+45 7488 2222
E-Mail: heating@danfoss.com
Danfoss can accept no responsibility for possible errors in catalogs, brochures, and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary for specifications already agreed upon. All trademarks in this material are the property of the respective companies. Danfoss and all Danfoss logotypes are trademarks of Danfoss A/S. All rights reserved.
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© Danfoss | 2022.01

Documents / Resources

| Danfoss UnoFloor Control Pre-Assembled Distribution Stations [pdf] Installation Guide
UnoFloor Basic, UnoFloor Comfort, UnoFloor Control, Pre-Assembled Distribution Stations, UnoFloor Control Pre-Assembled Distribution Stations, Assembled Distribution Stations, Distribution Stations, Stations
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References

• Engineering Tomorrow | Danfoss
• Danfoss Icon | Danfoss

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