F263 Series Liquid Level Switches Installation Instructions
4
All F263 models have color-coded screw terminals.
•
Red is common
•
Red closes to Yellow on liquid level increase
•
Red closes to Blue on liquid level decrease
The F263 switch has three color-coded terminals. Red is common. Remove the cover to make wiring connections.
See Figure 3 for terminal identification.
See Figure 4 and Figure 5 for suggested circuits for controlling liquid levels with several inches (or feet) between
minimum and maximum levels.
Table 1: F261 Control Switch Action
Flow Action
Switch Closure
Increase
Red to Yellow
Decrease
Red to Blue
Figure 3: Terminal and Wiring Identification
Increase in Level
Above Setpoint
Decrease in
Below Setpoint
Level
Red
Yellow
Blue
FIG
:F2
63_
sw
tc
ha
ct
n
Figure 4: Circuit for Controlling Fill Levels
R
R
Y
Y
B
B
Pump In
R1
R2
Pump
R
High Level
F263 Switch
Low Level
F263 Switch
L
L
FI
G
:f
il
l_l
vl
_c
nt
rl
