Fault Location - Danfoss ASV-P Montageanleitung

ASV-P
ENGLISH
Balancing valve ASV-P is used together with
shut-off and measuring valve
ASV-M to control the differential pressure in
riser pipes where radiator valves have presetting
facilities ❶.
ASV-P maintains constant differential pressure
across the pipes.
Max. working pressure.......................................16 bar
Differential pressure
across valve .........................................10-max.150 kPa
Max. flow temperature ......................................120 °C
Valve size Internal thread
DN 15 Rp ½
DN 20 Rp ¾
DN 25 Rp 1
DN 32 Rp 1 ¼
DN 40 Rp 1 ½
Impulse line: G 1/16
Installation
ASV-P must be installed in the return pipe. The
flow must be in the direction of the cast-in
arrow ❸①.
It is recommended that an FV filter be installed
in the system flow pipe.
The impulse tube must be fitted on the flow
pipe, e.g. via an ASV-M valve. The tube must be
flushed through before being fitted on the +
connection of the ASV-P balancing valve ❷.
ASV-P must in addition be installed as
determined by installation conditions. When
the system has been in use for some time, the
connections with external threads should be
tightened once again to minimize the risk for
leakage.
Shut-off
Turning the ASV-P knob fully clockwise will shut
off the balancing valve ❷①.
Pressure testing
Max. test pressure ...............................................25 bar
Note:
When pressure testing you must secure that both
sides of the membrane have the same static
pressure. That means the impulse tube must be
connected and any needle valves must be open.
If ASV-P/PV is installed in combination with
ASV-M both valves can be open or closed (both
valves must be in the same position!). If ASV-P/
PVis installed in combination with ASV-I both
valves must be open. If this instruction is ignored,
the membrane of the automatic balancing valve
might be damaged.
Starting
You can fill the system with the drain-
connection on ASV-P/PV. The system shall be
ventilated at the highest point. When opening
the shut-of from ASV-P/PV please secure that
you have the same static pressure on both sides
of the membrane.
AQ14678647941301-010301
Note!
If this procedure is not followed ASV-P may become
locked in closed position even if the valve is fully
opened.
Tapping
The connection (closed, ❸② - open, ❸③ can
be used for water tapping and filling.

Fault location

Check the following if the balancing valve does
not function correctly:
1. Is the flow direction through the valve
correct?
External thread
2. Is the impulse tube fitted correctly and are
any needle valves open?
G ¾ A
3. Is the valve shut-off open?
G 1 A
Accessory
G 1 ¼ A
Impulse tube, 1.5 m
G 1 ½ A
Impulse tube, 5 m
G 1 ¾ A
Measuring connection for drain
connection
Insulation
The styropor packaging in which the valve is
supplied can be used as an insulation jacket for
temperatures up to 80 °C.
Code no.
003L8152
003L8153
003L8143
© Danfoss | 2021.09 | 3