Danfoss RAS-C 5921, RAS-C 5922, RAS-C 5923 Data sheet

Data Sheet

Thermostatic sensor RAS-C

Application

Ordering and
specifications

The RAS-C radiator sensors are for use on
Danfoss radiator valves in all central and dis-

The RAS-C sensors also provide the option to
limit the minimum temperature range.

trict heating systems.

The RAS-C construction is particularly robust,
RAS-C sensors are self-actuating proportional
controllers with a small P-band, designed for
use in 2-pipe domestic heating systems.

with both end-stop strength limits and sen-

sor bending force limits being substantially

above the requirements of the European

Standard EN 215.
RAS-C sensors are equipped with a snaplock
connection, which ensures quick, firm and
long lasting mounting onto the valve body,
without the use of any tools.

All RAS-C sensors incorporates a Frost Protec­tion Setting.

Type Sensor

RAS-C 5921 Built-in Room temperature 8 - 21 ˚C 013G5921

RAS-C 5922 Built-in Room temperature 8 - 22 ˚C 013G5922

RAS-C 5923 Built-in Room temperature 8 - 23 °C 013G5923

Setting Range

1)

Code no.

1)

Temperatures stated for Xp = 2K, i.e. the valve is closed at 2 °C higher room temperature.

Quality

Danfoss Heating Solutions VDLTB202 © Danfoss 09/2016 1

Thermostatic sensors RAS-C are manufactured
to the highest standards, and are
approved to the European standard EN 215.

Datasheet Thermostatic sensor RAS-C

Mounting

Theft protecton

The Danfoss snaplock connection is easy to
mount and requires no use of tools, once the
valve cover has been removed. The sensor is fitted
to the valve by applying a gentle pressure.

When the sensor is in place, the snaplock connec­tion is activated and the sensor has been correctly
mounted. If dismounting and mounting are car­ried out again, the mechanism must be tightened
manually by turning the tightening ring.

Setting the temperature

Once the thermostat is mounted on the valve,
push in the theft protection device. The thermo­stat cannot be removed.

The required room temperature is set by turning
the setting dial. The temperature scales show the
correlation between scale values and the room
temperature. The temperature values stated are
for guidance only as the obtained room tem­perature will often be influenced by installation
conditions.

To remove the theft protection use screwdriver
013G1236 and screw into the hole (1). Pulled out
until the stop is reached (2). It is now possible to
remove the sensor from the valve.
New Anti-theft plug: 013G5245

 = Frost protection setting

10 14 18 22 °C

0  1 2 3

8 12 16 20 °C

The temperature scales are stated according to
European standards at Xp = 2°C. This means that
the radiator thermostats close at a sensor tem­perature which is 2°C higher than stated on the
temperature scales.

2 VDLTB202 © Danfoss 09/2016 Danfoss Heating Solutions