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INSTRUCTION 
Radiator Thermostat RAS-C

2

 Combi

BI-DIRECTIONAL VALVE WITH FLOW-SELECTABLE FEATURE 

 


Close all radiator valves by turning  
the valve cover cap clockwise. 
Leave system to cool.


Start boiler/heating.


Open one valve and determine 
flow direction. Which pipe heats 
first?

Remove cap and turn setting 

ring according to the drawings - 

the setting ring is turned by hand 

only.


Repeat step 3 and 4 until all valves have 
been set correctly. Sensor may now be fit-
ted or the valve cap temporarily refitted.

Setting ring

013R9355

013R9355

Installation of valve

The valve is a bi-directional valve * and can be installed  

horizontally  or  vertically  in  either  the  flow  or  return 

pipe. 

A built in flow direction selection feature can be used to 

eliminate the risk of water hammer.

Troubleshooting

In the unlikely event of water hammer being encountered 

turn the setting ring (see diagram 4) to the other setting.  

Alternatively  if  commissioning  the  whole  system, 

establish  the  flow  direction  through  each  valve  using 

the diagrams below.

If  the  flow  direction  needs  to  be  changed  there  is 

no  need  to  remove  the  valve,  simply  turn  the  setting 

ring. 

* Maximum pressure drop should not exceed 0.45 bar

VISXM302/Danfoss DKCD 05/2011

 

Keymark reference: This package contains sensor 013G6040, valve 013G6281 (15mm) or valve 013G6283 (8/10 mm)

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