Danfoss RAS-C Data sheet

Data Sheet

RAS-C2 Range

Radiator Thermostats for Domestic 2-Pipe Systems

Application

RAS-C² radiator thermostats are designed for use in 2-pipe domestic heating systems.

All RAS-C² Combi Packs comprise of a RA-FS angled or straight pattern bi-directional valve and a RAS-C2 sensor designed for 2-pipe heating systems.

Combi Packs are also available with a RLV-D lockshield valve or drain-off tailpiece.

The valves have a ½” BSP (R½”) tail piece connection to the radiator and are available with 15mm, 10mm or 8mm compression fitting or an elbow with 10mm push-fit fitting to connect the valve to the pipe work.

The valve bodies are reversible and bi-directional and include a flow-selectable feature to ensure trouble free installation without any risk of water hammer. For optimum performance, Danfoss recommend the sensor be mounted horizontal where at all possible.

The valve is supplied with a protective cap, which can be used for manual regulation during the construction phase. The cap must not be used as a manual shut of device.

RAS-C² sensors incorporate a “Frost Protection” setting and a “Positive Off” feature for maximum user flexibility. Temperature range is from 8°C to 28°C.

System

© Danfoss Climate Solutions | 02/2022 | AI000086402453en-010803

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Data Sheet	RAS-C2 Range - Radiator Thermostats for Domestic 2-Pipe Systems
Ordering Details	Valve bodies and RAS-C2 thermostatic sensors supplied complete in Combi-pack form
				Temp.
	Symbol	Type	Comprising	range °C,	Code No.
				Xp = 2 K
		RAS-C² Combi	15 mm angle valve body and	8-28	013G6050
		6050	thermostatic sensor
		RAS-C² Combi	10 mm angle valve body and	8-28	013G6055
		6055	thermostatic sensor
		RAS-C² Combi	8 mm angle valve body and	8-28	013G6058
		6058	thermostatic sensor
		RAS-C² Combi	Angle valve body, RAS-C2		013G6060
			thermostatic sensor and elbow	8-28
		6060
			with 10 mm push-fit fitting
		RAS-C²	15 mm angle valve body,		013G6005
		Radiator Pack	lockshield valve and	8-28
		6005	thermostatic sensor
		RAS-C²	10 mm angle valve body,		013G6006
		Radiator Pack	lockshield valve and	8-28
		6006	thermostatic sensor
		RAS-C²	8 mm angle valve body,		013G6008
		Radiator Pack	lockshield valve and	8-28
		6008	thermostatic sensor
		RAS-C²	Angle valve body, lockshield		013G6007
		Radiator Pack	valve, thermostatic sensor and	8-28
		6007	elbows with 10 mm push-fit fitting
		RAS-C²	15 mm angle valve body,
			lockshield valve, thermostatic		013G6009
		Radiator Pack		8-28
			sensor and drain-off tailpiece
		6009
			with 10 mm push-fit fitting
		RAS-C²	15 mm angle valve body,
			lockshield valve, thermostatic		013G6025
		Radiator Pack		8-28
			sensor and drain-off tailpiece
		6025
			with 15 mm push-fit fitting
		RAS-C²	15 mm bi-directional straight		013G6051
		Combi Pack	valve body and thermostatic	8-28
		6051	sensor, 15 mm fittings
		RAS-C²	8/10 mm bi-directional straight		013G6056
		Combi Pack	valve body and thermostatic	8-28
		6056	sensor, 8/10 mm fittings
		RAS-C²	15 mm bi-directional straight		013G6003
		Radiator Pack	valve body, lockshield valve, therm-	8-28
		6003	ostatic sensor, 15 mm fittings
		RAS-C²	8/10mmbi-directionalstraight		013G6004
		Radiator Pack	valvebody,lockshieldvalve, therrmo	8-28
		6004	-staticsensor,8/10mmfittings

2	© Danfoss Climate Solutions | 02/2022 | AI000086402453en-010803

Data Sheet

RAS-C2 Range - Radiator Thermostats for Domestic 2-Pipe Systems

RAS-C² sensors supplied in a separate box

Type

Sensor (Max. sensor temperature 60°C)

Temp. range °C (Xp = 2 K)

Code No.

RAS-C2

Built-in (includes positive shut-off)

8 - 28

013G6040

Specification

RA-FS angle valves supplied in separate boxes

Connection

kv-value (m³/h at Δp = 1

Max. pressure

bar), P-band (K)

Max.

Type

Design

Work.

Diff.

Test

temp.

Code No.

Inlet

Outlet

0.5

1.0

2.0

3.0

kvs

press.

press.

press.

bar

bar

bar

°C

Rev.

15

1/2”

013G6281

RA-FS 15

Angle

mm

BSP

10

0.6

16

120

1) 3)

Rev.

8/10

1/2”

013G6283

Angle

mm

BSP

0.13

0.27

0.50

0.64

0.73

RA-FS 15

Rev.

10

1/2”

3) with

3

0.6

6

92

pushfit

Angle

mm

BSP

elbow

1)RA-FS valves must only be used with RAS-C2 or RAS-D sensors.

2)As with any device which imposes a pressure drop in the system, noise may occur under certain flow/ pressure conditions. To ensure quiet operation, maximum pressure drop should not exceed 45 kPa (0.45 bar). The differential pressure can be reduced using Danfoss automatic by-pass valve AVDO.

3)Only available in Combi packs.

	The push-fit fitting is suitable for 10 mm copper	Always use plastic pipe inserts of the same brand
	pipes manufactured in accordance to BS 2871	as the pipe used.
	part 1 / BS EN 1057 : 1996 and suitable for 10 mm
	polybuthelene (PB) including Hep2O, Polyplumb,
	OsmaGold and 10 mm cross linked polyethylene
	(PEX) pipes made in accordance to BS 7291 part
	1 : 1990 or part 3 : 1990.
Approved to EN 215	All Danfoss RAS-C2² sensors and RA-FS
	valves are manufactured to the highest
	standards and are approved to the
	European standard EN 215, which
	supersedes BS 6284, 1983.
Quality Standards	All Danfoss radiator thermostats and valves are
	manufactured in factories, assessed and certified
	by BVC (Bureau Veritas Certification) against ISO
	9001 / BS 5750.

© Danfoss Climate Solutions | 02/2022 | AI000086402453en-010803

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