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VENT ACCESSORIES
The vent valve and vent device allow to avoid un-
desired venting of the pump during temporary
power failure and enables an automatic vent op-
eration.
TV 301SF Navigator Controller Compatible
Vent Valve mod. 969-9834
This vent valve waits before opening a minimum
time of about 5 sec. This time can be increased up
to about 220 min. by means of a setting of the
Navigator software (optional).
To install the vent valve, unscrew the threaded
plug (see figure below).
Then screw the vent valve into the pump and
tighten it using a 16 mm hexagonal spanner with a
torque of 2.5 Nm.
Do not overtighten the valve as this may damage
the thread on the pump.
Then connect the cable from the valve to the suit-
able connector on the controller (see the preced-
ing paragraph "INTERCONNECTIONS").
Standard Rack Controller Compatible
Vent Valve mod. 969-9843
This vent valve has a fixed delay time of about 5
sec. This time can be increased up to about 220
min. by means of a setting of the Navigator soft-
ware (optional).
To install the vent valve execute the same steps
as the vent valve model 969-9834 (see the above
paragraph).
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TECHNICAL INFORMATION
CAUTION
87-900-957-01(E)
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