Danfoss 013G7390 RA-N Integrated Valve manual
Screw the integrated valve into the radiator until it is hand tight and it’s flange is butting onto the radiator connection. Then, using an open ended ring spanner, SW21, tighten the valve into the radiator, this should be turned through an angle of 30° equivalent to one of the notches on the valve body part on which the spanner fits. This equates to a torque of 30 35 Nm.
Reference
As the notches on the valve body cannot be seen with the spanner in place, it is a good idea to put two marks on the outside of the ring spanner for guidance: Mark “1” must be at top Mark “2” should be spaced one notch distance away in a clock-wise direction.
Capacity: Information on pre-settings at the assembly site
Pre-setting The dimensioned setting values can be selected simply and precisely without tools, prior to the fitting of the sensor. For this purpose, the red scale ring must be turned to ensure that the presetting figure selected matches the setting mark. In setting “N” the preset value is fully open. Detailed information is available from stockists or from the radiator manufacturer.