SJE RHOMBUS 1010434G-TD Timed Dosing Control Installation Guide
- June 1, 2024
- SJE RHOMBUS
Table of Contents
SJE RHOMBUS 1010434G-TD Timed Dosing Control
WARNING! ELECTRICAL SHOCK HAZARD
Disconnect all power sources before servicing. Failure to do so could result
in serious injury or death.
Warranty void if the panel is modified. Call the factory with servicing questions: 1-800-RHOMBUS (1-800-746-6287)
This control panel must be installed and serviced by a licensed electrician by the National Electric Code NFPA-70, and 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 entering the panel. NEMA 4X enclosures are for indoor or outdoor use, primarily to provide a degree of protection against corrosion, windblown dust, rain, splashing water, and hose- directed water. Cable connectors must be liquid-tight in NEMA 4X enclosures.
Installation
Type TD control panels are designed to operate with two, three, or four float systems. The two-float system utilizes one float as the “low-level cutout”, and the second as the “high-level alarm”. A three-float system adds either a “redundant off” float or a “timer override” float to the “low-level cutout” and “high-level alarm” functions. A four-float system includes a “redundant off float”, a “low-level cutout” float, a “timer override” float, and a “high- level alarm” float.
NOTE: Options ordered may affect the number of floats and their functions. Please reference the schematic provided with the control panel.
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 off all power before installing floats in the pump chamber.
Failure to do so could result in serious or fatal electrical shock.
-
Use a float label kit to identify and label cables on both the float and stripped ends (low-level cutout, alarm, etc.). See the schematic for float options.
-
Determine your normal operating level and desired float configuration, as illustrated in Figures 1-4.
-
Mount float switches at appropriate levels as illustrated in Figures 1-4. Be sure that floats have a free range of motion without touching each other or other equipment in the basin.
-
For mounting clamp installation: place the cord into the clamp as shown in Figure 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 a cord under the hose clamp. -
Tighten the hose clamp using a screwdriver. Over-tightening may result in damage to the plastic clamp. Make sure the float 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. -
If using an optional redundant off float, mount slightly below the low-level cutout float, but above the pump as illustrated in Figures 2 & 4.
-
If using an optional timer override float, position it at a level in the basin as shown in Figures 3 & 4.
Installation Instructions
Mounting the Control Panel
-
Determine a mounting location for the panel. If the distance exceeds the length of either the float switch cables or the pump power cables, splicing will be required. For outdoor or wet installation, we recommend the use of an SJE Rhombus® liquid-tight junction box with liquid-tight connectors to make the required connections. You must use conduit sealant to prevent moisture or gases from entering the panel.
-
Mount control panel with mounting devices furnished.
-
Determine conduit entrance locations on the control panel. Check local codes and schematic for the number of power circuits required.
NOTE: Be sure the proper power supply voltage, amperage, and phase meet the requirements of the pump motor being installed. If in doubt, see the pump identification plate for voltage/phase requirements. -
Drill proper size holes for the type of connectors being used.
NOTE: If using a conduit, be sure that it is of adequate size to pull the pump and switch cables through. -
Attach cable connectors and/or conduit connectors to the control panel.
FOR INSTALLATION REQUIRING A SPLICE, FOLLOW STEPS 6-10; FOR INSTALLATION WITHOUT A SPLICE, GO TO STEP 11. -
Determine a location for mounting the junction box according to local code requirements. Do not mount the junction box inside the sump or basin.
-
Mount junction box to proper support.
-
Run conduit to the junction box. Drill proper size holes for the type of conduit used.
-
Identify and label each wire before pulling through the conduit into the control panel and junction box. Make wire splice connections at the junction box.
-
Firmly tighten all fittings on the junction box.
-
If a junction box is not required, pull cables through the conduit into the control panel.
-
Connect pump wires and float switch cables to the proper terminals as seen in Figures 6 & 7. If the redundant off float is not required, place a jumper wire across TB1-7 and TB1-8.
-
Connect pump/control and alarm incoming power conductors to the proper position on terminals. See the schematic and wiring diagram for terminal connections.
VERIFY CORRECT OPERATION OF CONTROL PANEL AFTER INSTALLATION IS COMPLETE.
Setting the timer
Remove the timer by clipping the tie strap and pulling it straight out of the
socket.
- Determine the pump “on and off” time.
- Adjust the OFF time range selector to the appropriate period (e.g. 10H).
- Adjust the OFF dial so the pointer indicates the off period required (e.g. 0.2).
- Adjust the ON time range selector to the appropriate period (e.g. 10M).
- Adjust the ON dial so the red pointer indicates the on period required (e.g. 0.1).
- When the setting is complete, place the timer back in the socket.
- In the example shown, the pump would be off for 2 hours and then on for 1 minute. This cycle would continue as long as there was enough liquid in the tank to float the low-level cutoff switch.
NOTE: “OFF” time is cycled first.
Operations & Troubleshooting
WARNING! ELECTRICAL SHOCK HAZARD Disconnect all power sources before servicing. Failure to do so could result in serious injury or death.
TD series control panels are available for use with two, three, or four float combinations. In a two-oat system, one float in the tank is the “low-level cutout” float while the other is a “high-level alarm” float. The normal operating level should be between the “low-level cutout” position and the “high-level alarm” position.
- The TD panel can be installed with a choice of three float systems. One choice adds a “redundant off” float which is positioned slightly below the “low-level cutout” grey float but above the pump. The normal operating level shall be between the “low-level cutout” position and the “high-level alarm” position. The other choice adds a “timer override” float which is positioned between the “low-level cutout” (grey float) and the “high-level alarm” float. The normal operating level should be between the “low-level cutout” float and the “timer override” float.
- A four-float system includes a “redundant off” float, a “low-level cutout” float, a “timer override” float, and a “high-level alarm” float. The “timer override” float gives you the option of pumping from the basin while the timer is in the “off” cycle. It is only intended for times of abnormally high liquid level inrushes. The normal operating level should be between the “low-level cutout”
fl oat and the “timer override” float.
The control panel begins timing the “off” sequence when the “low-level cutout” float is activated. Once the timer completes the “off” sequence, the timer will start the pump and continue to run until the programmed “on” sequence is complete. At this point, the “off” sequence begins timing again and the cycle repeats.
Float Controls
- Check the floats during their entire range of operation. Clean, adjust, replace, and repair damaged floats.
- Measure the float resistance to determine if the float is operating properly.
To measure float resistance:
- Isolate the float by disconnecting one or both of the float leads from the float terminals.
- Place one ohmmeter lead on one of the float wires, and the other ohmmeter lead on the other float wire.
- Set the ohmmeter dial to read ohms and place it on the R X 1 scale. With the float in the “off” position, the scale should read infinity (high resistance), if not replace the float.
With the float in the “on” position, the scale should read close to zero, if not replace the float. Readings may vary depending on the accuracy of the measuring device.
Magnetic Contactor Coil
To measure the coil, disconnect one of the coil leads. Measure the coil
resistance by setting the ohmmeter on the R X 1 scale. A defective coil will
read zero indicating a short, or infinity (high resistance) indicating an
opened coil. Replace defective contactor.
Fuses
To check the continuity of the fuse, pull the fuse out of the fuse holder.
With the ohmmeter on the R X 1 scale, measure resistance. A reading of
infinity (high resistance) indicates a blown fuse that must be replaced with a
fuse of the same type, voltage, and amp rating.
Alarm Light
Activate the alarm float. The alarm light should turn on. If not, replace the
light with that of the same type.
Alarm Horn
Activate the alarm float. The alarm horn should turn on. If not, replace the
horn with that of the same type.
SJE Rhombus® Five-Year Limited Warranty
- Five-Year Limited Warranty. For complete terms and conditions, please visit www.sjerhombus.com.
NOTICE!
Products returned must be cleaned, sanitized, or decontaminated as necessary
before shipment to ensure that employees will not be exposed to health hazards
in handling said material. All applicable laws and regulations shall apply.
Specifications
- Model: PN 1010434G
- Control Type : Timed Dosing Control
- Enclosure: NEMA 4X for indoor or outdoor use
- Float System Compatibility: Two, three, or four float systems
- Support Contact: 1-800-RHOMBUS (1-800-746-6287)
- Technical Support Hours : Monday – Friday, 7 A.M. to 6 P.M. Central Time
FAQ
Q: What should I do if the pump system does not function properly after
installation?
A: Check the wiring of control switch cables to ensure they are in the
correct order. Incorrect wiring can lead to malfunctioning of the pump system.
Q: How should I handle power before installing floats in the pump chamber?
A: It is crucial to turn off all power before installing floats to avoid
serious or fatal electrical shock.