Danfoss RAS-D2 Radiator Thermostat Installation Guide
INSTRUCTION
Radiator Thermostat RAS-D2 Combi Pack / Radiator Pack
BI-DIRECTIONAL ANGLED VALVE WITH FLOW-SELECTABLE FEATURE
Installation of valve
Troubleshooting
The valve is a bi-directional valve * and can be installed In the unlikely event of water hammer being encountered
horizontally or vertically in either the flow or return pipe. turn the setting ring (see diagram 4) to the other setting.
A built in flow direction selection feature can be used to Alternatively if commissioning the whole system, establish the
eliminate the risk of water hammer. We recommend using a flat flow direction through each valve using the diagrams below.
faced adjustable spanner and a soft cloth to protect the chrome If the flow direction needs to be changed there is no need to
surfaces when tightening up the connections.
remove the valve, simply turn the setting ring.
1
2
Start boiler/heating.
3
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.
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
fitted or the valve
cap temporarily
refitted.
* Maximum pressure drop should not
exceed 0.45 bar
© Danfoss Climate Solutions | 01/2024 | AN000086405177en-010301(013R9399)
| General | Details |
|---|---|
| Name | Danfoss RAS-D2 Radiator Thermostat Installation Guide |
| Make | Danfoss |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.15 MB |
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Danfoss RAS-D2 Manual: Questions and Answers
Where is the setting ring on the Danfoss RAS-D2?
Behind the valve cover cap. Remove the cap to access and turn it by hand. Installation Guide, p. 2
What does the Allen screw on the Danfoss RAS-D2 sensor do?
Secures the sensor connection to the valve. Installation Guide, p. 2
How do I attach the sensor to the Danfoss RAS-D2?
Mount the sensor onto the valve ensuring correct orientation, then secure it.
- Remove the cap from the valve.
- Press the sensor firmly onto the valve with the scale pointer at top if horizontal, or at the front if vertical.
- While holding the sensor firmly, tighten the Allen screw using the enclosed key to secure the connection.
- Set your desired room temperature by turning the head. Installation Guide, p. 2
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