Danfoss FED-IF, FED-FF Data sheet [fa]

Data sheet FEK sensors

Control of cooling circuit

Products

FEK-IF: with integrated sensor FEK-FF: with remote sensor

Ordering and
specifications

Application

The FEK sensor is installed in rooms which
have surplus heat due to internal or external
heat sources; i.e. only control of cooling circuit
is needed.
When the room temperature rises above the
set temperature the FEK sensor opens the
cooling valve.
FEK-IF as well as FEK-FF sensors can be

For cooling circuits in fancoils and induction
units use the FEK-FF with remote sensor.
The remote sensor can e.g. be placed below
the cabinet of the air inlet or on a separate
wall surface.
By placing the sensor in the air inlet a quicker
reaction time of the air temperature changes

is achieved.
used for chilled ceilings, fancoils and induc­tion units.

Type Code no. Sensor Capillary tube Setting range
FEK-IF 013G5465 Integrated sensor 5 m
FEK-FF 013G5464 Remote sensor 2 + 2 m

17-27 °C

Control of cooling circuit - chilled ceiling

FEK-IF

Cooling circuit

RA-C

Control of cooling circuit - fancoils and inductions units

Cooling circuit

FEK-FF

RA-C

CD-ST VD.33.S1.02. © Danfoss 06/99 1

Data sheet Climate controls: FEK sensors

FEK sensor design

Remote tempera­ture adjuster

Temperature setting

Cooling
adapter

Actuator

The FEK sensors are applied with RA-C
valves.

The FEK sensors are equipped with a reverse

Comfort temperature ~ 22 °C at Xp = 0 K

Remote sensor
(only FEK-FF)

device for the control of cooling circuits. With
the reverse device the valve in the cooling
circuit will open when the temperature rises
above the set temperature.

The FEK sensors have been developed for

valves via capillaries and adapters.
room cooling via water-based cooling sys­tems.

The scale shows the approximate set-point

offset from the comfort temperature which is
The FEK sensors are based on the self-acting
principle. The liquid-filled sensors control the

approximately 22° C at X

= 0 K.

p

2 VD.33.S1.02. © Danfoss 06/99 CD-ST