INSTALLATION INSTRUCTIONS LL-3 (L-30N)
LIQUID LEVEL SWITCH
MODEL L30N LIQUID LEVEL SWITCH
INSTALLATION AND OPERATING INSTRUCTIONS
Installation:
The L-30 liquid level switch is supplied with a 1-1/2” or 1-1/4” X 1 bushing threaded in place
with 2 to 3 wraps of teflon tape, which must be intact or renewed if bushing and switch are
separated before assembly in tank. Care must be exercised when threading the bushing
into plastic or metal fittings. Apply a minimurn of 2 to a maximum of 3 wraps of teflon tape
to threads of bushing - this is especially important if unit is to be used in metal fittings where
coarse METAL THREADS could gall plastic if not lubricated. The plastic bushing CAN BE
CRACKED if the main body of the flow switch is tightened into it FIRST. Cracking will not
occur if the bushing is FIRST tightened into the pipe or tank fitting and THEN the L-30 body
is tightened into the bushing.
Thus:
1). Teflon tape thread and tighten plastic bushing into pipe or tank fitting.
2). Teflon tape thread and tighten L-30 switch into PLASTIC bushing by applying wrench to
hexagon section. Repeat steps I and 2 until ARROW on body points to UPWARD and
threads are, leak tight.
Plumbers'tools such as pipe wrenches are not recommended. If possible use a "Ridgid"
type wrench where the smooth jaws closely fit the hexagon section.
Electrical Wiring:
1). Remove gland nut, grommet and switch cover.
2). Strip outerjacket of electrical cord back
3). Slip on terminals are
individual conductors supplied with each switch. approximately 1-1/4". Strip insulation
from back approximately 1/4". Remove from switch terminals and
and crimp on or solder to electrical leads.
4). Feed electrical cable through gland nut, grommet and switch cover as shown.
