SJE RHOMBUS 112 Single Phase Simplex Instruction Manual
- June 9, 2024
- SJE RHOMBUS
Table of Contents
SJE RHOMBUS 112 Single Phase Simplex
Parts Included
This control panel must be installed and serviced by a licensed electrician in accordance with the National Electric Code NFPA-70, state and local electrical codes. UL Type 4X enclosures are for indoor or outdoor use.
For information regarding operation, available options, or servicing
questions, please call SJE Rhombus Technical Support.
SJE Rhombus offers a five-year limited warranty.
For complete terms and conditions, please visit
www.sjerhombus.com.
Products returned must be cleaned, sanitized, or decontaminated as necessary
prior to shipment to ensure that employees will not be exposed to health
hazards in handling said material. All applicable laws and regulations shall
apply.
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.
- 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 floats are not properly mounted and connected in the correct order, the pumps will not function properly.
Mounting the Control Panel
NOTE 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.
Floats require free range of motion.
They must not touch each other or any equipment in the pump chamber.
Wiring the Control Panel
-
Determine conduit entrance locations on control panel as shown. Check local codes and schematic inside the panel for the number of power circuits required.
CAUTION! Be sure the pump power voltage and phase are the same as the pump motor being installed. -
Connect the following wires to the proper terminal positions:
- incoming power
- pump
- float switches
See the schematic inside control panel for details.
Operation
SJE-Rhombus® Model 112 Single Phase Simplex control panels are designed to
operate in a three-float system as standard. When all floats are in the open
or OFF position, the panel is inactive. As the liquid level changes and closes
the stop float, the panel remains inactive until the start float closes. At
this point the pump will start, providing the HOA switch is in the AUTOMATIC
mode and the power is ON. The pump will remain ON until both the stop and
start floats open (return to the OFF position).
If the liquid level travels beyond both the stop and start floats and reaches
the alarm float, the alarm will be activated. The alarm horn can be silenced
by pressing and releasing the test/silence switch.
CAUTION! You must use conduit sealant to prevent moisture or gases from
entering the panel.
Type 4X conduit must be used to maintain a Type 4X rating of the control
panel.
Verify correct operation of control panel after installation is complete.
COMPONENTS
- a. ON/OFF Switch – Control/Alarm Power
- b. 120V Incoming Power Terminals
- c. Power LED – (Green)
- d. Pump HOA Switch
- e. Float LEDs – (Red) x3
- f. Pump LED
- Pump Run – (Green)
- Pump Fail – (Red)
- g. Simulate Float Buttons x3
- h. Float Terminals x6
- i. Seal Fail Pot – (Optional)
- j. Seal Fail LED – (Red) – (Optional)
- k. Auxiliary Alarm Terminals
PROGRAMMING INSTRUCTIONS
WITH POWER ON, HOA OFF, FLOATS OFF OR DISCONNECTED, PRESS DESIRED FLOAT BUTTON
RAPIDLY 4 TIMES AND HOLD
PUMP LED WILL FLASH UPON SUCCESSFUL PROGRAMMING
OPTIONS| FLOAT BUTTON| DEFAULT| OPERATION
MANUAL ALARM RESET| STOP| OFF| LATCHES HIGH ALARM: CLEAR WITH EXTERNAL TEST
SWITCH
SEAL FAIL ALARM ACTIVATION| START| OFF| ACTIVATES HORN UPON SEAL FAIL
ALARM FLASHER| ALARM| OFF| 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
Technical Support: +1-800-746-6287
techsupport@sjeinc.com
www.sjerhombus.com
Technical Support Hours: Monday – Friday, 7 A.M. to 6 P.M Central Time