Knick Unical 9000, Installation Manual

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32
8.3 Media Supply to Unical 9000(X)
Pilot Valves, Control Valves
Connections Between Pilot Valves at the Valve Block (H) and Control Valves
To ensure low power consumption, the control valves are operated via pilot
valves. As delivered, the tubes between the pilot valves at the valve block and
the control valves are already connected. For orientation:
• Pilot valve "Probe"
(a)
to probe control valve
(A)
: green
• Pilot valve "Water"
(b)
to water control valve
(B)
: blue
• Pilot valve "Aux 1" (c) to Aux 1 purge air control valve (C) : black (optional)
• Pilot valve "Aux 2" (d) to Aux 2 control valve (D) : black (optional)
• Compressed air supply to media adapter
(E)
: red
• A safety valve
(s)
is connected upstream of the pilot valves.
This valve allows disconnecting the compressed air in the system.
For maintenance, it can be disabled via the service switch.
Pilot valves
Valve block
with pilot valves and
safety valve
(see also next figure)
Retractable fitting
Water
Aux 1 purge air
(Option)
Aux 2 (Option)
A
B
C
D
Pressure gauge for
checking the facto-
ry-set valve control
pressure and the
compressed-air supply
to the media adapter
(4 bar)
G
Pressure gauge for
indicating the internal
operating pressure
adjusted by the
operator
(4 … 7 bar)
F
Pressure gauge for check-
ing the water pressure
M
Sensor dismount guard
K
Compressed-air
supply to
media adapter
E
H
J
Pressure regulator