User manual

INSTRUCTION
Combi-set with living sensor & bi-directional angle valve
013R9548
Installing the bi-directional valve
The valve is bi-directional and can be installed horizontally
or vertically in either flow or return pipe.
A built in flow direction selection feature can be used to
eliminate the risk of water hammer.
Note! Maximum pressure drop should not exceed 0.45 bar.
Troubleshooting
In the unlikely event of water hammer being encountered,
turn the setting ring to the another setting.
Alternatively, if commissioning the whole system, establish
the flow direction through each valve as shown below.
If the flow direction needs to be changed there is no need
to remove the valve, simply turn the setting ring.
Danfoss Heating Solutions VIGWE102 © Danfoss 02/2012
013R9548
1. 2. 3.
Close all radiator valves by turning
the valve cap clockwise.
Leave system to cool down.
Start boiler/heating. Open a valve and determine flow
direction. Which pipe heats up first?
4.
4a.
4b.
Remove cap and turn setting ring (by
hand) according to 4a. and 4b.
5.
Repeat step 3 and 4 until all valves
have been set correctly. To mount the
living sensor, see next page.