Liberty Pumps AE-Series - Manual (Page 2)

Most single phase duplex panels are designed to operate as
three or four fl oat systems. The three fl oat system is standard
performing the common pump stop, lead pump start, and lag
pump start/high level alarm functions. The four fl oat system
utilizes separate fl oats for lag pump start and high level alarm.
NOTE: Options ordered may affect the number of fl oats and
their functions. Please reference the schematic provided
with the control panel for proper installation.
Installation of Floats
CAUTION: If control switch cables are not wired and mounted in
the correct location, the pump system will not function properly.
WARNING: Turn off all power before installing fl oats in pump
chamber. Failure to do so could result in serious or fatal
electrical shock.
1. Use fl oat label kit to identify and label cables on both
fl oat and stripped ends (stop, lead, lag, alarm, etc.). See
schematic for fl oat options.
2. Determine your normal operating level, as illustrated in
Figures
1-2.
3. Mount fl oat switches at appropriate levels as illustrated in
Figures 3-5. Be sure that fl oats have free range of motion
without touching each other, or other equipment in the basin.
If using the mounting clamp; follow steps 4-6.
4. Place the cord into the clamp as shown in Figure 5.
5. Locate the clamp at the desired activation level and secure
the clamp to the discharge pipe as shown in Figure 5.
NOTE: Do not install cord under hose clamp.
6. Tighten the hose clamp using a screwdriver. Over tightening
may result in damage to the plastic clamp. Make sure the
fl oat cable is not allowed to touch the excess hose clamp
band during operation.
NOTE: All hose clamp components are made of 18-8
stainless steel material. See your SJE-Rhombus ® supplier
for replacements.
FIGURE 1: Three fl oat duplex
FIGURE 5: Mounting clamp detail
FIGURE 4: Float with cable weight
FIGURE 3: Internally weighted fl oat
FIGURE 2: Four fl oat duplex
Installation Instructions
7249000B
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