Danfoss 013R9355 Radiator Thermostat Instructions

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INSTRUCTION  

Radiator Thermostat RAS-C² Combi  

BI-DIRECTIONAL VALVE WITH FLOW-SELECTABLE FEATURE  

Installation of valve  

Troubleshooting  

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.  

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.  

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3

1

Start boiler/heating.  

Open one valve and determine  

flow direction. Which pipe heats  

first?  

Close all radiator valves by turning  

the valve cover cap clockwise.  

Leave system to cool.  

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

Setting ring  

4

Remove cap and turn setting  

ring according to the drawings -  

the setting ring is turned by hand  

only.  

5

Repeat step 3 and 4 until all valves have  

been set correctly. Sensor may now be fit-  

ted or the valve cap temporarily refitted.  

VISXM302/Danfoss DKCD 05/2011  

* Maximum pressure drop should not exceed 0.45 bar  

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General	Details
Name	Danfoss 013R9355 Radiator Thermostat Instructions
Make	Danfoss
Language	English
Filetype	PDF (Download)
File size	0.08 MB

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Danfoss 013R9355 Radiator Thermostat Instructions Overview

Summary of Contents

• Page 1: Radiator thermostat RAS-C Bi-directional valve with flow-selectable feature Installation of valve The valve 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. If water hammer is encountered, turn the setting ring to the other setting. To change the flow direction, simply turn the setting ring without removing the valve. Open one valve and determine flow direction by observing which pipe heats first. Close all radiator valves by turning the valve cover cap clockwise. Remove cap and turn setting ring according to the drawings.
• Page 2: Installation guide Fitting the sensor The desired room temperature is set by turning the head. The thermostat opens and closes as determined by the temperature around it. The sensor must never be hidden behind thick curtains, furniture, etc. Positive shut-off feature allows for complete water flow shut off. Set desired room temperature. What is a thermostatic radiator valve (TRV)? TRVs sense the air temperature around them and regulate the flow of water through the radiator. Turning a TRV to a higher setting will not make the room heat up any faster. TRVs need a free flow of air to sense the temperature.