Samson EB 2519 EN, Assembly & Operating Instructions, Page: 21 / 32

EB 2519 EN 21
Mounting and start-up
5.4.2 Additional fittings
Additional electric unit (electric signal trans-
mitter)
An additional electric signal transmitter for
remote transmission of the plant state can be
attached to the operating element with
spring mechanism.
The signal transmitter contains a microswitch
(max. load 10 A, 125 V, 250 V) which gen -
erates a signal when the limit value of the
pressure element is exceeded for remote
transmission of the plant state.
5.4.3 Installing the valve
1. Close the shut-off valve in the pipeline
while the valve is being installed.
2. Remove the protective caps from the
valve ports before installing the valve.
3. Lift the valve using suitable lifting equip-
Hzul
VN
DB
STW
TR
SV
Black
Brown
Unlocked
Blue
Locked
Fig. 5: District heating system (space heating)
acc. to DIN 4747-1 with pressure
limiter (PL)
Fig. 6: Circuit diagram for electric signal
transmitter
ment to the site of installation (see sec-
tion 4.2.2). Observe the flow direction
through the valve. The arrow on the
valve indicates the direction of flow.
4. Bolt the pipe to the valve free of stress.
5.
Depending on the field of application,
allow the valve to cool down or warm up
to reach ambient temperature before
start up.
6. Slowly open the shut-off valve in the
pipeline after the valve has been in-
stalled.
Risk of valve damage due to a sudden
pressure increase and resulting high flow
velocities.
Slowly open the shut-off valve in the pipeline
during start-up.
7. Check the valve to ensure it functions
properly.
NOTICE
!