Danfoss LinkFT User manual

Danfoss Link™ FT
Floor Thermostat
Installation Guide
electricheating.danfoss.com

Installation Guide2
1 Introduction � � � � � � � � � � � � � � � � � � � � � 2
2 Placement of Danfoss Link™ FT � � � � � � � � � 4
2.1 Operation mode . . . . . . . . . . . . . . . . 4
2.2 Sensor combination. . . . . . . . . . . . . . 4
3 Installation � � � � � � � � � � � � � � � � � � � � � � 6
3.1 Conguration . . . . . . . . . . . . . . . . . . 7
4 Factory reset � � � � � � � � � � � � � � � � � � � � � 7
5 Technical specications � � � � � � � � � � � � � � 7
6 Warranty� � � � � � � � � � � � � � � � � � � � � � � � 9
7 Disposal instructions� � � � � � � � � � � � � � � � 9
1 Introduction
The Danfoss Link™ FT (Floor Thermostat) is a device for
switching the heating element ON/OFF.
In connection with a oor sensor it can also measure the
temperature in the oor (FTS).
Secondly you have the possibility to use the Danfoss Link™
FT as a on and o switch to other equipments manually or
by schedule.
Danfoss Link™ FT
Table of Contents

3Installation Guide
Installation scenario: Danfoss Link™ CC
Danfoss Link™ RS
Danfoss Link™ FT
ON/OFF
safety switch
LED
Push and hold
for 5 sec. to
install/connect
Danfoss Link™ FT

Installation Guide4
2 Placement of Danfoss Link™ FT
Installation and placement must be according to local
building regulations.
2�1 Operation mode
Danfoss Link™ FT supports two types of operation modes.
1. Heating regulation
1. On/OFF switching
When used in heating regulation mode you have to con-
sider the following advices for controlling the heating.
When used as simple ON/OFF mode do not connect oor
sensor.
2�2 Sensor combination
When installing the Danfoss Link™ FT you need to consider
the type of heating and thus which sensors should be used.
There are three options:
Danfoss Link™ FT

5Installation Guide
1. Comfort heating: Constant temperature on the oor
in bathrooms and other rooms where a comfortable
warm surface is required. Install the Floor sensor and
choose Floor regulation for the room when doing the
conguration.
2. Total heating: Control of room temperature in living
rooms etc. Install the oor sensor and a Danfoss Link™
RS. Choose Combined regulation when doing the
conguration on the Danfoss Link™ CC.
3. No oor sensor: A oor sensor is not present, and
cannot be installed. You must install a Danfoss Link™
RS. Choose Room regulation.
Be aware that temperature control is less accurate without
the oor sensor and that all Danfoss Link™ FTs in a room
need to have the same sensor conguration.
Danfoss recommends always installing a oor sensor.
Do not install oor heating system without a oor sensor
when the heating element is installed on or beneath wooden
surfaces and other surfaces sensitive to temperature!
Danfoss Link™ FT

Installation Guide6
3 Installation
1. To remove the front cover, gently press the release
tabs under the bottom of the thermostat with a screw-
driver. Then remove the front.
15
20
25
30
35
2. Connect the thermostat according to the connection
diagram.
DFT01
Sensor
N L NTC
N
LOAD
L
LOAD
(Optional)
Mains 220-240V
50-60 Hz
Max. Load
15 (1) A
IP31
-10T30
Danfoss Link™ FT

7Installation Guide
3�1 Conguration
See Step-by-Step guide in Danfoss Link™ CC instruction
manual.
Green LED ON Standby
Red LED ON Heating
Green LED fast ash Inclusion or link test
Red LED short ash Inclusion not OK, goes to not
included.
Linktest not OK, goes to
missing link
RED LED slow ash Sensor failure
4 Factory reset
Turn o power on the safety switch on the front. Hold the
install button in while pushing ON the safety switch and
keep the install button pressed until the LED gives a red
ash (approx. 5 sec.)
5 Technical specications
Operation voltage 220-240 V~ 50/60 Hz~
Standby power
consumption Max. 1 W
Danfoss Link™ FT

Installation Guide8
Relay:
• Resistive load
• Inductive load
230 V ~ 15 A / 3450 W
cos ϕ= 0.3 Max. 1 A
Sensing unit NTC 15 kOhm at 25°C
Sensing values:
• 0°C
• 20°C
• 50°C
42 kOhm
18 kOhm
6 kOhm
Regulation PWM
Ambient temperature -10° to +30°C
Sensor failure
monitoring
The thermostat has a built-
in monitoring circuit, which
will switch o the heating if
the sensor is disconnected
or short-circuited
Transmission frequency 868.42 MHz
Transmission range in
normal buildings Up to 30 m
Transmission power Max. 1 mW
IP class 31
Dimensions 85 mm × 85 mm × 21 mm
Danfoss Link™ FT

9Installation Guide
6 Warranty
7 Disposal instructions
Danfoss Link™ FT

Installation Guide10
Danfoss Link™ FT

Produced by Danfoss © 08/2015088L8135 & VIION102
Danfoss A/S
Electric Heating Systems
Ulvehavevej 61
7100 Vejle
Denmark
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
htttp://electricheating.danfoss.com
Danfoss can accept no responsibility for possible errors in catalogues, 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 in specications already agreed. All
trademarks in this material are property of the respective companies. DEVI and the DEVI logo-type are trademarks of
Danfoss A/S. All rights reserved

Danfoss Link™ FT, ELKO JUSSI 088L1905 EN Floor Thermostat 220-240V~ 50-60Hz +5°C to +45°C 15A/3450W@230V~ IP 31
Product documentation
devireg™550
Designed in Denmark for Danfoss A/S
*088L8135*
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