12
Installation Manual
MST
MANUAL SINGLE TANK FLUSH SELECTOR
the strain relief gland.
2) Loosen and remove the ¼ FNPT
x ½ tube fitting and sensor from the
bottom of the sensor assembly. DO
NOT remove the ½ inch tube from
the
5
/
8
inch tube.
3) Using a tubing cutter remove
the required length of tube from the
end of each tube. Deburr the cuts
when complete.
4) Install a new ½ compression
ferrule on the end of the tube.
Carefully thread the sensor wire
through the tube assembly and
attach the ¼ FNPT x ½ tube fitting
with sensor attached to the end of
the tube. Tighten the ½ tube
compression nut.
5) Install a new
5
/
8
compression
ferrule on the end of the tube.
Carefully thread the sensor wire
through the
3
/
8
FNPT x
5
/
8
tube fitting
and strain relief gland. Attach the
3
/
8
FNPT x
5
/
8
tube fitting and strain relief
to the end of the tube. Tighten the
5
/
8
tube compression nut.
6) Slide the flange to the top of
the 5/8 inch diameter tube and
adjust the telescoping section until
the desired length is achieved as
measured from the bottom of the
flange to the bottom of the sensor.
Tighten the compression fittings on
the union to lock length.
CAUTION:
Use mounting hardware
that is compatible with all foam
concentrates to be used in the
system. Use washers, lockwashers
and capscrews made of brass or 300
series stainless steel.
d. Insert sensor assembly through the
1.31 inch (33 mm) hole and align the
screw holes on the flange and gasket
with the holes on the tank. Secure
the assembly in place using four ¼-20
UNC x 1 inch long cap screws, ¼ inch
washers and ¼ inch lockwashers.
e. Make final adjustment to the
sensor position by pulling the tubing
sections up through the flange until
sensor is 1-½ to 2 inches (38 to 51
mm) from the bottom of the tank.
Tighten the 5/8 tube compression nut
on the flange.
f. Close strain relief to the 90
0
position making sure it snaps shut.
Tighten strain relief gland nut to seal
out water and contamination.
