Thermostatic sensors type RA 2000 - DANFOSS Refrigeration & Air Conditioning - (Version JPG) - PDF Catalogue | Technical Documentation

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Check valve, Filter, Ball valve, Valve, Reciprocating compressor

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Data sheet

Thermostatic sensors type RA 2000

RA 2990

RA 2992

RA 2920

RA 5060

RA 5074

Application

The RA series is a comprehensive programme ofradiator thermostatswhich covers all central and district heating systems. RA is a self-actuating proportional controller with a small P-band.

The RA sensor range includes:

• RA 2990 and RA 2940: built-in sensorwith frost protection, temperature range 5-26°C, facilities for limiting and locking the temperature set-point. RA 2980 has an additional anti-theft facility. RA2940 has positive shutt off feature.

• RA 2992: remote sensor with frost protection, temperature range 5-26°C, facilities for limiting and locking the temperature set-point. RA 2982 has an additional anti-theft facility.

• RA 2920:Tamperproofmodel with built-in sensor, frost protection, temperature range 5-26°C, facilities for limiting and locking the temperature set-point.

• RA 2922:Tamperproof model with remote sensor, frost protection, temperature range 5-26°C, facilities for limiting and locking the temperature set-point.

RA 2992 and 2922 are equipped with 2mof ultra-thin capillary tube, which is coiled up within the remote sensor housing. After sensor mounting capillary tube is pulled out to the required length.

RA 5060/5070 Series: remote temperature adjusterwith frost protection. Temperature range 8-28°C, facilities for limiting and locking the temperature set-point.

- RA 5062: length ofcapillarytube 2 m

- RA 5065: length ofcapillarytube 5 m

- RA 5068: length ofcapillary tube 8 m

- RA 5074: length ofcapillary tube 2+2 m

All thermostatic sensors can be combined with all RA2000 valve bodies.

A union nut establishes a simple but strong connection between sensor and valve body. Anti-theft protection prevents the sensor from unauthorised removal. (See accessories).

The technical data for RA valve bodies in combination with RA sensors meet Euronorm EN 215-1.

Ordering and RA thermostatic sensors


Type	Code no.	Model	Cap. tube	Temp.range²'
RA 2940	013G2940	Standard, built-in sensor, positive shut off	-	0-26 °C
RA 2990	013G2990	Standard, built-insensor	-	5-26 °C
RA 2992	013G2992	Standard, remote sensor	0-2 m "	5-26 °C
RA 2920	013G2920	Tamperproof, built-in sensor	-	5-26 °C
RA 2922	013G2922	Tamperproof, remote sensor	0-2 m ¹¹	5-26 °C
RA 5062	013G5062	Remotetemperatureadjuster	2 m	8-28 °C
RA 5065	013G5065	Remotetemperatureadjuster	5 m	8-28 °C
RA 5068	013G5068	Remotetemperatureadjuster	8m	8-28 °C
RA 5074	013G5074	Remote adjuster with remote sensor	2 + 2m	8-28 °C

¹¹ The remote sensor is delivered with all of thecapillarytube coiled up within the sensor. When mounting the sensor, onlythe

capillary tube required is uncoiled. ²¹ Temperatures stated for Xp = 2K, i.e. the valve is closed at 2 °C higher room temperature.

DKCC

Thermostatic sensors type RA 2000 - DANFOSS Refrigeration & Air Conditioning - #1

Check valve, Filter, Ball valve, Valve, Reciprocating compressor