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.

2. Connect the thermostat according to the connection

diagram.

DFT01

Sensor

N L NTC

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

Table of contents

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