MR 150M–1050M SINGLE – MXIII CONTROLLER
SYSTEM INFORMATION
7
TUBING DIAGRAM - VALVE NEST - MULTITANK - PARKER SOLENOID
Note:
All valves normally open except optional valve 2A.
1
3
2
Flow
Solenoid Energized
1
3
2
Flow
Solenoid De-energized
Energized T
o Close
The
NXT
Stager
control
can
operate
an
optional
24
VA
C
solenoid
to
control
when
a
tank
is
o
ff
line.
This
solenoid
is
electrically
connected
to
the
"lower
drive"
connection
on
the
circuit
board,
and
control
pressure
is
run
through
the
solenoid
to
the
service
outlet
diaphragm
valve.
The
solenoid
installed
at
the
factory
is
a
universal
type.
It
is
plumbed
in
an
energize
to
close
configuration.
When
a
tank
enters
Regeneration
or
Standby
the
solenoid
is
energized.
Pressure
from
solenoid
port
1
passes
to
port
2.
The
diaphragm
valve
#2
will
close.
When
a
tank
enters
In
Service
the
solenoid
is
de-energized.
The
inlet
pressure
to
solenoid
port
2
is
stopped.
The
diaphragm
valve
is
vented
through
solenoid
port
2
to
port
3
(drain).
The
valve
#2
opens.