Danfoss Link FT User manual

Danfoss Link™ FT
Floor Thermostat
Installation Manual
MAKING MODERN LIVING POSSIBLE
Danfoss Heating
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Danfoss Link™ CC
Danfoss Link™ RS
Danfoss Link™ FT
The Danfoss Link™ FT (Floor Thermostat) is a device for
switching the heating element ON/OFF.
In connection with a floor sensor it can also measure the
temperature in the floor (FTS). Secondly you have the
possibility to use the FT as a on and off switch to other
equipments manually or by schedule.
Installation scenario:
ON/OFF
safety switch
LED
Push and hold
for 5 sec. to
install/connect
Danfoss Link™ FT

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Placement of Danfoss Link™ FT
Installation and placement must be according to local
building regulations.
Operation mode
Danfoss Link™ FT supports two types of operation modes.
1. Heating regulation
2. On/OFF switching
When used in heating regulation mode you have to consider
the following advices for controlling the heating.
When used as simple ON/OFF mode do not connect floor
sensor.
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:
1. Comfort heating: Constant temperature on the floor 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 configura-
tion.
2. Total heating: Control of room temperature in living
rooms etc. Install the floor sensor and a Danfoss Link™ RS.
Choose Combined regulation when doing the configura-
tion on the Danfoss Link™ CC.
3. No floor sensor: A floor sensor is not present, and cannot
be installed. You must install a Danfoss Link™ RS. Choose
Room regulation.

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Be aware that temperature control is less accurate without
the floor sensor and that all Danfoss Link™ FTs in a room need
to havethe same sensor configuration.
Danfoss recommends always installing a floor sensor.
Placement of Danfoss Link™ FT
Do not install floor heating system without a floor sensor
when the heating element is installed on or beneath
wooden surfaces and other surfaces
sensitive to temperature!

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Installation of Danfoss Link™ FT
Installation of Danfoss Link™ FT
1. To remove the front cover, gently press the release tabs
under the bottom of the thermostat with a screwdriver.
Then remove the front.
2. Connect the thermostat according to the connection
diagram.
Configuration:
See Step-by-Step guide in Danfoss Link™ CC instruction
manual.
15
20
25
30
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Green LED ON Standby
Red LED ON Heating
Green LED fast flash Inclusion or link test
Red LED short flash Inclusion not OK, goes to not
included.
Linktest not OK, goes to
missing link
RED LED slow flash Sensor failure
Factory reset a Danfoss Link™ FT
Turn off 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 flash
(approx. 5 sec.)
Trouble shooting

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Disposal Instruction

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Technical specifications
Operation voltage 180-250 VAC, 50/60 Hz
Standby power
consumption Max. 1 W
Relay:
• Resistive load
• Inductive load
230 V ~ 15 A / 3450 W
cos ϕ= 0.3 Max. 4 A
Sensing unit NTC 15kOhm 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 off 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

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The 2 Year Danfoss Warranty
You have purchased a Danfoss heating
system which we are sure will serve to
improve the comfort and economy of
your application.
Danfoss provides superior electrical
heating solutions for total climate
control in and around homes and
buildings. Danfoss offers a complete
product program with Danfoss
heating cables or Danfoss heating
mats, Danfoss thermostats, Danfoss
selflimiting heating cables combined
with additional products completing
the product program.
This 2 year warranty applies to all
Danfoss products.
Should you, against all expectations,
experience a problem with your
Danfoss product, you will find that
Danfoss offers a 2 year warranty from
the date of purchase on the following
conditions:
During the warranty period Danfoss
shall offer a new comparable
product or repair the product in
case the product is found to be
faulty by reason of defective design,
materials or workmanship. Repair
or replacement shall be carried out
at Danfoss’ discretion. Danfoss shall
not be liable for any consequential
or incidental damages including, but
not limited to, damages to property or
extra utility expenses.
This warranty shall only be valid on
production of proof of purchase and
must be submitted to the installer or
seller without undue delay.
An extension of the warranty period
following repairs undertaken under
warranty cannot be granted.
The Danfoss Warranty shall not
cover any damage caused by
incorrect conditions of use, incorrect
installation or if installation has
been carried out by non-authorised
electricians. All work will be invoiced
in full if Danfoss is required to inspect
or repair faults that have arisen as a
result of any of the above.
The Danfoss Warranty shall not extend
to equipment which has not been
paid in full.
Danfoss will, at all times, provide a
rapid and effective response to all
complaints and inquiries from our
customers.
The warranty explicitly excludes
all claims exceeding the above
conditions.