Danfoss FED-IF, FED-FF Data sheet [cs]
Data sheet FED sensors
Sequence control
of cooling and heating circuit
Products
FED-IF: with integrated sensor FED-FF: with remote sensor
The FED sensors are used in applications in
which a cooling and a heating circuit are to be
controlled by one controller.
Both FED-IF and FED-FF sensors can be
applied to chilled ceilings, fancoils and induction units.
For control of cooling and heating circuits in
fancoil and induction units use the FED-FF
with remote sensor.
By placing the sensor in the air inlet a quicker
reaction time of the air temperature changes
is achieved. Using the remote sensor, the
remote temperature adjuster can be placed
directly on the cabinet.
Ordering and
specifications
Type Code no. Sensor Capillary tube Setting range
FED-IF 013G5463 Integrated sensor 4 + 11 m
FED-FF 013G5462 Remote sensor 2 + 2 + 2 m
Application
Sequence control of chilled ceiling and radiator Sequence control of fancoils and induction units
Cooling circuit
17-27 °C
Cooling circuit
RA-C
FED-IF
Heating circuit/radiator
RA-N
CD-ST VD.33.T1.02 © Danfoss 06/99 1
FED-FF
RA-C
Heating circuit
RA-C
RA-N
Data sheet Climate controls: FED sensors
FED sensor design
Cooling
adapter
Actuator
Remote temperature adjuster
Remote sensor
(only FED-FF)
Capillary reel
(only FED-IF)
Heating
adapter
Temperature setting
The FED sensors are applied with the RA-N
and the RA-C valves.
The FED sensors are equipped with a reverse
device for the control of cooling circuits. With
the reverse device the valve in the cooling
Comfort temperature ~ 22 °C at Xp = 0 K
The FED sensors have been developed for
room temperature control via water-based
cooling and heating systems.
The FED sensors are based on the self-acting
principle. The liquid-filled sensors control the
circuit will open when the temperature rises
above the setpoint temperature.
The valve in the heating circuit will open when
the temperature falls below the setpoint temperature.
valves via capillaries and adapters.
The scale shows the approximate set-point
offset from the comfort temperature which is
approximately 22° C at X
= 0 K.
p
2 VD.33.T1.02 © Danfoss 06/99 CD-ST
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