SJE Rhombus 112 Operation and maintenance manual

Single Phase Simplex
SJE Rhombus®Type 112
Installation Instructions and Operation/Troubleshooting Manual
Installation
Warranty void if panel is modied.
Call factory with servicing questions:
1-800-RHOMBUS
(1-800-746-6287)
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.
All conduit running from the sump or tank to the control panel must
be sealed with conduit sealant to prevent moisture or gases from enter-
ing the panel. NEMA 1 enclosures are for indoor use only, primarily to
provide a degree of protection against contact with enclosed equipment.
Cable connectors are not required to be liquid-tight in NEMA 1 enclosures.
Do not use NEMA 1 enclosures if subjected to rain, splashing water or
hose-directed water. NEMA 4X enclosures are for indoor or outdoor
use, primarily to provide a degree of protection against corrosion, wind-
blown dust and rain, splashing water and hose-directed water. Cable
connectors must be liquid-tight in NEMA 4X enclosures.
A standard Type 112 panel is designed to operate with three oats. These
oats operate pump stop, pump start, and high level alarm functions.
NOTE: Options ordered may aect the number of 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 order, the pump system will not function properly.
WARNING: Turn o all power before installing oats in pump chamber.
Failure to do so could result in serious or fatal electrical shock.
1. Use oat label kit to label oats for specic operation (stop, start,
alarm, etc.). See schematic for oat options.
2. Determine your normal operating level, as illustrated in Figure 1.
3. Mount oat switches at appropriate levels as illustrated in Figures
2-4. Be sure that 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 2.
5. Locate the clamp at the desired activation level and secure the
clamp to the discharge pipe as shown in Figure 2.
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 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.
Technical support: [phone]
[e-mail]
www.sjerhombus.com
PN 1008704F 05/19
© 2019 SJE, Inc. All Rights Reserved.
SJE RHOMBUS is a trademark of SJE, Inc.
Manufactured by:

Mounting the Control Panel
1. Determine mounting location for panel. If distance
exceeds the length of either the oat switch
cables or the pump power cables, splicing will be
required. For outdoor or wet installation, we rec-
ommend the use of an SJE Rhombus® liquid-tight
junction box with liquid-tight connectors to make
required connections. You must use conduit seal-
ant to prevent moisture or gases from entering
the panel.
2. Mount control panel (mounting anges are fur-
nished with control panel).
3. Determine conduit entrance locations on control
panel. Check local codes and schematic for the
number of power circuits required.
NOTE: Be sure the proper power supply voltage,
and phase are the same as the pump motor being
installed. If in doubt, see the pump identication
plate for electrical requirements.
4. Drill proper size holes for type of connectors being
used.
NOTE: If using conduit, be sure that it is of ad-
equate size to pull the pump and switch cables
through. You must use conduit sealant to pre-
vent moisture or gases from entering the panel.
5. Attach cable connectors and/or conduit connec-
tors to control panel.
FOR INSTALLATION WITHOUT A SPLICE,
GO TO STEP 11;
FOR INSTALLATION REQUIRING
A SPLICE, FOLLOW STEPS 6-10.
6. Determine location for mounting junction box
according to local code requirements. Do not
mount the junction box inside the sump or
basin.
7. Mount junction box to proper support.
8. Run conduit to junction box. Drill proper size holes
for the type of conduit used. Attach liquid-tight
connectors to junction box.
9. Identify and label each wire before pulling through
conduit into control panel and junction box. Pull
pump power cables and control switch cables
through connectors into junction box. Make wire
splice connections at junction box.
10. Firmly tighten all ttings on junction box. Insure
all cable connectors are liquid-tight and sealed.
11. If a junction box is not required, identify and label
cables on both oat and stripped ends.
12. Connect pump and oat wires to proper position
on terminals. See schematic inside control panel
for terminal layouts.
13. Connect control, alarm and pump power conduc-
tors to proper position on terminals. See schemat-
ic inside control panel for terminal connections.
NOTE: It is the recommendation of the factory
to use separate pump and control/alarm power
sources.
VERIFY CORRECT OPERATION OF CONTROL PANEL
AFTER INSTALLATION IS COMPLETE.
FIGURE 1
Three oat simplex - pump down installation
Installation Instructions

For information regarding the operations
of options not listed here or servicing questions,
please call a SJE Rhombus®
customer service technician at
1-800-RHOMBUS
(1-800-746-6287)
Warranty void if panel is modied.
FIGURE 3
Internally weighted oat
FIGURE 2
Mounting clamp detail
FIGURE 4
Float with cable weight
SJE Rhombus® Type 112 control panels are designed
to operate in a three oat system as standard. When
all oats are in the open or OFF position, the panel is
inactive. As the liquid level changes and closes the
stop oat, the panel remains inactive until the start
oat also 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 oats open (return to the
OFF position). If the liquid level travels beyond both
the stop and start oats and reaches the alarm oat,
the alarm will be activated. The alarm horn can be
silenced by moving the test/normal/silence switch to
the silence position.
Alarm System (Horn and Indicator)
When an alarm condition occurs, a red light and horn
will be activated. If the test/normal/silence switch
is moved to the silence position, the horn will be
silenced. When the alarm condition is cleared, the
alarm system is reset. The alarm system can be
tested by moving the test/normal/silence switch to
the test position.
HOA Switch
A hand-o-automatic switch is provided for the pump.
In the hand mode, the pump will turn on unless other
safety features are employed. In the automatic mode,
the pump will turn on from commands by the oat
switches.
Operations
Installation Instructions
Pump Run Light
The run light will be ON in either the hand or the au-
tomatic mode when the pump is called to run.
Circuit Breaker (optional)
The pump circuit has a thermal-magnetic circuit
breaker which provides pump disconnect and branch
circuit protection.
Dry Auxiliary Contacts (optional)
Normally open - Contacts are open under normal con-
ditions and closed when alarm condition is present.
Normally closed - Contacts are closed under normal
conditions and open when alarm condition is present.
Both types automatically reset once alarm condition
is cleared.
NOTE: Some options ordered may not be included
in this manual.

1. Isolate the oat by disconnecting one or both of the
oat leads from the oat terminals.
2. Place one ohmmeter lead on one of the oat wires, and
the other ohmmeter lead on the other oat wire.
3. Place the ohmmeter dial to read ohms and place on
the R X 1 scale. With the oat in the “o” position, the
scale should read innity (high resistance). Replace
the oat if you do not get this reading. With the oat
in the ON position, the scale should read nearly zero
(very low resistance). Replace the oat if you do not
get this reading.
NOTE: Readings may vary depending on the length of wire
and accuracy of the measuring device.
Fuses
Check the continuity of the fuse. With power OFF, pull the
fuse out of the fuse block. With the ohmmeter on the R X 1
scale, measure resistance. A reading of innity indicates a
blown fuse and must be replaced. Replace fuse with same
type, voltage and amp rating.
Magnetic Contactor Coil
WARNING: Disconnect incoming power to panel.
Check the coil by disconnecting one of the coil leads. Mea-
sure the coil resistance by setting the ohmmeter on the
R X 1 scale. A defective coil will read zero or innity, indicat-
ing a short or opened coil respectively. Replace defective
contactor with same type.
NOTE: Readings may vary depending on the accuracy of
the measuring device.
Alarm Horn
Moving the test/nor-
mal/silence switch to
the test position or
activating the alarm
float should turn on
the alarm horn. If the
horn does not sound, replace horn with same type.
Alarm Light
Moving the test/normal/silence switch to the test position
or activating the alarm oat should turn on the alarm light.
If the light does not activate, replace with same type.
Circuit Breaker (optional)
Check each pole of the circuit breaker for proper resistance
reading using the following procedure.
WARNING: Disconnect incoming power to panel.
1. Isolate the circuit breaker by disconnecting either line
side or load side wires.
2. Place the ohmmeter leads across the corresponding
line and load terminals of each pole.
3. With the ohmmeter on the R X 1 scale and the breaker
in the OFF position, the reading should be innity (very
high resistance). With the breaker in the ON position,
the reading should be nearly zero ohms (very low re-
sistance). If the readings are not as stated, replace
the circuit breaker with one of the same ratings.
NOTE: Readings may vary slightly depending on the
accuracy of the measuring device.
Float Controls
Check the oats during their entire range of operation.
Clean, adjust, or replace damaged oats.
Checking the oat resistance - The oat resistance can
be measured to determine if the oat is operating correctly
or is defective. Use the following procedure to measure
the oat resistance.
WARNING: Disconnect incoming power to panel.
Troubleshooting
NOTICE!
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.
For complete terms and conditions, please visit www.sjerhombus.com.
SJE Rhombus®Five-Year Limited Warranty