Danfoss HDU-SF Manual de servicio - Página 4
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Imprimir páginaService Guide
Note! HDU-SF are available with left or right side connections to riser. In this Service Guide all illustrations are shown for the left side
version.
1.2
Technical Data
Max. temperature
Max. working pressure
Nominal required differential pressure over Unit (HDU-SF)
Max. differential pressure in a control loop
Max. static pressure
Connection to riser (in and out)
Connection to radiator
Power supply (Heat meter)
* At differential pressure in control loop 10kPa at 100% AB-PM set-
ting.
1.3
Accessories and Spare Parts
Product
Manifold port plugs (10 pcs.)
Filter for strainer
Impulse tube with fittings for AB-PM
2
Drain and Vent
For draining the inlet and outlet:
▪ close ball valves on supply and return inlet pipes.
▪ use the cap hanging on the drain to open the drain.
The HDU-SF is automatically vented, if necessary.
4
HDU-SF (Horizontal Distribution Units - Single Flat)
90 °C
2 bar
0.26 bar*
0.22 bar
10 bar (PN 10)
R 3/4"
3/4"
A-cell battery, 3.6 VDC
VIIGB102
Code no.
003L1246
065B8248
003L8152
Danfoss Heating Solutions