Danfoss Link Application guide
Application Guide
Heating Control
Danfoss Link™ & Connect Thermostats
www.heating.danfoss.com
Application Guide Heating Control with Danfoss Link™ & Connect Thermostats
Table of Contents
1. Introduction
1.1 S egm ent .............................................................................. 3
1.2 Danfoss Eco® programmable radiator thermostat ....................................... 3
1.3 Overview of units in a Danfoss Link™ system ............................................ 3
1.4 Number of units in a Danfoss Link™ system ............................................. 4
1.5 Best Practice .......................................................................... 4
2. General Guidelines
2.1 Heat supply ........................................................................... 6
2.2 Functions ............................................................................. 7
2.3 Rooms ................................................................................ 8
3. Applications
3.1 Heating system with Boiler ........................................................... 11
3.2 Heating system with Central Boiler.................................................... 13
3.3 District Heating....................................................................... 14
3.4 Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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VAIDD402 © Danfoss 07/2016
Application Guide Heating Control with Danfoss Link™ & Connect Thermostats
1. Introduction
1.1 Segment
1.2 Danfoss Eco™
programmable
radiator thermostat
1.3 Overview of units
in a Danfoss Link™
system
This application guide covers the use of Danfoss Link™, Danfoss Link™ Connect Thermostat wireless
heating controls and Danfoss Eco™ in 1 and 2 family houses and flats up to 300 m2.
Danfoss Eco™ is a stand-alone intelligent and programmable radiator thermostat*
for residential use, where a central control system is not available
It is easy to install and is supplied with adapters for all thermostatic valves manufac-
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tured by Danfoss and most other radiator valve manufacturers.
The following units can be used in a Danfoss Link™ wireless system:
Danfoss Link™ CC Central
Controller is the unit, from which
the entire installation can be
controlled. One Danfoss Link™ CC
is always needed in a system.
Danfoss Link™ HC Hydronic Controller
allows control of hydronic floor heating with
21,5°
Danfoss Link™ Connect Thermostat is an electronic radiator
thermostat* for residential use,
which is controlled by a Danfoss
Link™ CC.
Danfoss Link™ RS Room Sensor
is used for measuring and adjusting the room temperature.
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a large range of functions.
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^
Danfoss Link™ FT Floor Thermostat is used for measuring and
adjusting electrical floor heating.
is a unit for turning gas and oil
boilers ON/OFF, depending on
heating demand.
Danfoss Link™ RU Repeater
Unit is used for extending the
wireless transmission range
between Danfoss Link™ CC and
other units in a system.
* Danfoss recommends using Connect and Eco™ Thermostats together with Danfoss radiator valves with
integrated pre-setting in order to achieve optimal performance.
For choise of adaptor please use the Danfoss adaptor guide, which also includes adaptors for non Danfoss
valves.
Danfoss Link™ BR Boiler Relay
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Application Guide Heating Control with Danfoss Link™ & Connect Thermostats
Danfoss Link™
Link
RU
1.4 Number of units in a
Danfoss Link™
system
1.5 Best practice
When building a wireless Danfoss Link™ control system it is important to follow these rules:
1. The total number of units must not exceed 50 (1 Danfoss Link™ Central Controller + 49 units).
2. The number of each type of unit must not exceed: Danfoss Link™ CC......................1 unit
Connect Thermostat ................30 units
Danfoss Link™ HC.....................3 units
Danfoss Link™ RS ....................30 units
Danfoss Link™ FT ....................30 units
Danfoss Link™ BR......................1 unit
Danfoss Link™ RU..................... 3 units
Mains powered units
Avoid disconnecting mains powered units in
a Danfoss Link™ system. In the event this happens the system will eventually re-establish the
network, when repeater unit is reconnected to
the mains power.
RU
230 V
Danfoss Link™ RU Repeater units
It is always recommended to use Danfoss Link™ RU, when a repeater is needed to extend the radio
communication range. Several mains powered units (such as relays) also act as repeaters, but with
limited capability to improve the communication range compared to Danfoss Link™ RU.
Danfoss Link™ RU repeaters should always be registered as the first 230 V units in the system.
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VAIDD402 © Danfoss 07/2016
Application Guide Heating Control with Danfoss Link™ & Connect Thermostats
Danfoss Link™ RS Room Sensor
The Danfoss Link™ RS is designed to measure the
room temperature and control the Connect Thermostats to reach the set room temperature.
The Danfoss Link™ RS is useful in all applications
where the actual temperature at the Connect
Thermostat is significantly different from the desired room temperature., or if you have multiple
radiators in the same room.
Do not install Danfoss
Link™ RS on outer walls or
where it will be subject to
direct sunlight.
Best performance of the system with Connect
Thermostats and Danfoss Link™ RS is achieved,
if the RS is not too far from the radiator, best
between 1 and 5 meters.
Make sure to select the proper settings for the
Connect Thermostat and Danfoss Link™ RS on
Danfoss Link™ CC. Choose the “covered radiator”
option if the radiator is behind a fixed radiator
cover and possibly if the radiator and Connect
Thermostat is covered by heavy furniture.
The installation height
should typically be
between 80-150 cm.
In wet rooms Danfoss
Link™ RS shall be installed
according to local building
regulations.
At least 50 cm away from
windows/doors that will
be left open occasionally.
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