Burkert Type 8697 - Manual (Page 17)

17
Installation
note!
too high torque when screwing in the fastening screw does
not ensure degree of protection ip65 / ip67.
▶ The fastening screws may be tightened to a maximum torque of
0.5 Nm only.
→
Attach the Pneumatic Control Unit to the actuator using the two
side fastening screws. In doing so, tighten the fastening screws
hand-tight only (maximum torque: 0.5 Nm).
3. installation of the pneumatic connection on the actuator
Pilot air outlet 2
1
Lower pilot air port
Upper pilot air port
Pilot air outlet 2
2
Fig. 12: Installation of the pneumatic connection, 20xx series
→
Screw the plug-in hose connectors onto the Pneumatic Control
Unit and the actuator.
→
Using the hoses supplied in the accessory kit, make the connection
between the Pneumatic Control Unit and the actuator with the fol-
lowing “Tab. 1: Pneumatic connection to actuator”.
note!
damage or malfunction due to ingress of dirt and moisture.
▶ To comply with degree of protection IP65 / IP67, connect the
pilot air outlet which is not required to the free pilot air port of the
actuator or seal with a plug.
“In rest position” means that the pilot valves of the Pneumatic
Control Unit Type 8697 are isolated or not actuated.
If the ambient air is humid, a hose can be connected between
pilot air outlet 2
2
of the Pneumatic Control Unit and the
unconnected pilot air port of the actuator for control function
A or control function B. As a result, the spring chamber of
the actuator is supplied with dry air from the vent duct of the
Pneumatic Control Unit.
english
Type 8697