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Installing the Float Switches

The Model 112 Single Phase Simplex control panel operates with 
3 float switches to activate pump STOP, START, and high-level 
ALARM functions.

Mounting the Control Panel

1

2

3

CAUTION!

NOTE

Ensure all power is turned OFF 
before installing floats in tank. 
Failure to do so could result in 
serious or fatal shock.

Label each float and cord 
end with the provided pairs 
of STOP, START, and ALARM 
stickers.

If the distance to the control panel exceeds the length of 
the float switch cords or the pump power cord, splicing 
in a liquid-tight junction box will be required.  For outdoor 
or wet installation, we recommend an SJE Rhombus UL 
Type 4X junction box.

2

Make sure hose clamp 
band does not interfere 
with float operation.

Do not install cord under
hose clamp.

Tighten 
the 
clamp.

Hose clamp is 18-8 
stainless steel. 

If the floats are not properly mounted and connected in the correct 
order, the pumps will not function properly.

Floats require free range of motion.  

They must not touch each other or any equipment in the pump chamber.

START

RED. OFF

STOP

STOP

START

RED. OFF

ALARM ALARM

Lag/Alarm

Stop

Stop

Stop

Lag/Alarm

Lead

Lead

Lead

Lag/Alarm

Operating

range

Start

Start

Alarm

Alarm

Alarm

Lag/Alarm

Stop

Stop

Stop

Lag/Alarm

Lead

Lead

Lead

Lag/Alarm

Operating

range

Start

Pipe Clamp Mounting - 

Float Operation

3.5”

(9cm)

Summary of Contents for 112

Page 1: ...on s or ser vic ing que stio ns ple ase cal l SJE Rho mb us Tec hni cal Sup por t ve y ear limit ed war rant y For com plet e term s and con ditio ns plea se visit ww w sj erho mbu s co m Prod ucts retu rned mus t be clea ned san itize d or dec onta min ated as nec ess ary prio r to ship men t to ens ure that emp loye es will not be exp ose d to hea lth haz ards in han dlin g said mat eria l All a...

Page 2: ...on box will be required For outdoor or wet installation we recommend an SJE Rhombus UL Type 4X junction box 2 Make sure hose clamp band does not interfere with float operation Do not install cord under hose clamp Tighten the clamp Hose clamp is 18 8 stainless steel If the floats are not properly mounted and connected in the correct order the pumps will not function properly Floats require free ran...

Page 3: ...de the pump will turn ON OFF turns the pump OFF In AUTO mode commands from the float switches turn the pump ON and OFF Auxiliary Contact Form C Can be wired normally open or normally closed Circuit Breaker optional The circuit breaker provides pump disconnect and branch circuit protection Motor Contactors The motor contactor controls the pump by switching electrical lines Wiring the Control Panel ...

Page 4: ...F FLASHES BEACON UPON HIGH ALARM ALARM CONDITIONS ALARM BEACON CONTROLLER LED HORN PUMP POWER FAIL FLASHING RED PUMP LIGHT NO SEAL FAIL FLASHING SF1 PROG FLOAT FAIL FLASHING BAD FLOAT NOT LIT NO HIGH ALARM SOLID ALARM FLOAT YES COMPONENTS a ON OFF Switch Control Alarm Power g Simulate Float Buttons x3 b 120V Incoming Power Terminals h Float Terminals x6 c Power LED Green i Seal Fail Pot Optional d...

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