Ecolab Ecoset-L - User Manual

Questions and Answers

D
Darrell SimpsonAug 13, 2025
What to do if Ecolab Control Unit pump does not draw/meter product?
- B
  Brian RossAug 13, 2025
  If the Ecolab Control Unit pump isn't drawing or metering product, several issues could be the cause. First, ensure that the product container isn't empty and replace it if necessary. Check the peristaltic tube and replace it if it's defective. Inspect the product feed hose for any squeezing or damage, replacing it if needed. Also, verify the foot valve isn't blocked; clean it or replace it if required. Check if the pick-up tube is defective and replace it if needed. Replace the metering line if it's defective. Finally, replace the check valve if it's blocked.
A
andrew87Aug 17, 2025
Why is the red LED flashing on my Ecolab Ecoset-L?
- J
  Joshua WardAug 17, 2025
  If the red LED is flashing on your Ecolab Control Unit, it could indicate several issues. It might mean the product level is low, so replace the container. It could also mean that no capsule is inserted; in this case, insert a capsule. Another reason could be that the maximum dosage time has been exceeded, so replace the container or capsule, check the pump functionality, and check the solenoid valve/water supply.
G
gbooneAug 20, 2025
How to fix Ecolab Ecoset-L pump that doesn't work when power is applied?
- C
  cristinathomasAug 20, 2025
  If the Ecolab Control Unit pump isn't working when power is applied, the pump motor or solenoid valve may be defective, requiring replacement. Alternatively, the tube rollers might be blocked, in which case you should replace the tube roller assembly.
L
laura82Aug 25, 2025
What to do if Ecolab Ecoset-L has product leakage from pump head?
- S
  Steven RobinsonAug 25, 2025
  If there's product leakage from the Ecolab Control Unit pump head, the peristaltic tube might be defective, so replace it. The tube nuts could also be defective, requiring replacement. Alternatively, the inlet or outlet fittings may be defective, and you should replace them.
G
Gail McdowellAug 27, 2025
Why is the red LED permanently on on my Ecolab Control Unit?
- K
  Kelly RamirezAug 27, 2025
  If the red LED is permanently on (only in inductive mode) on your Ecolab Control Unit, the measuring probe might not be connected; in this case, connect the inductive probe. Alternatively, the measuring probe could be defective, requiring replacement with a new inductive probe.
K
Keith MeadowsAug 31, 2025
What to do if Ecolab Ecoset-L Control Unit pump doesn't work at conductivity mode?
- B
  Brittany RogersAug 31, 2025
  If the Ecolab Control Unit pump isn't working in conductivity mode, first ensure the measuring probe is connected to “1 ...6” or “7 8” on the PCB. Also, if in 2-wire mode and the DW is filled with DEMI-water (conductivity < 100µS/cm), connect a wire link between “3” and “4”. Be aware that metering starts the moment Ecodos-L is live and conductivity is below the setpoint.
H
hornphilipSep 4, 2025
Why LED does not illuminate when power is applied from the dishwasher in Ecolab Ecoset-L?
- T
  Tanner SantosSep 4, 2025
  If the LED on your Ecolab Control Unit doesn't illuminate when power is applied from the dishwasher, the transformer or wiring might be defective; check and replace them if required. Alternatively, the PCB could be defective, and you should replace it.
R
Rhonda JacobsonSep 8, 2025
How to stop green LED from flashing on Ecolab Ecoset-L Control Unit?
- A
  Ashley PettySep 8, 2025
  If the green LED is flashing on the Ecolab Control Unit, the system is likely in standby mode. To return to operation mode, press the QUIT button for 2 seconds.

Summary

Safety

Safety information

Essential safety guidelines for connection, repair work, and wearing protective clothing.

Special safety information for maintenance and repair work

Critical safety precautions for maintenance, covering protective gear, power disconnection, and disposal.

Mounting and installation

Pre-installation requirements

Lists essential prerequisites and dimensional constraints for successful unit mounting and installation.

Installation of the product feed line and the metering hose

Installation of conductivity sensor

Maintenance and repair instructions

Replacement of peristaltic tube

Provides a detailed guide for replacing the peristaltic tube, including lever operation and lubrication.

Replacement of roller assy

Step-by-step instructions for replacing the roller assembly, covering cover removal and part exchange.

The Ecodos-L, Ecorinse-L, and Ecoset-L are dosing units manufactured by ECOLAB Engineering GmbH, designed for use in commercial dishwashers. These systems are capable of speed/timed and conductivity-controlled dosing of liquid/solid detergents and liquid rinse products. The manual emphasizes that all safety information and highlighted points must always be observed.

Function Description:

The core function of these units is to precisely dose cleaning agents and rinse aids into commercial dishwashers. The control electronics are powered by an external transformer when an enabling signal is received from the dishwasher. A green LED on the front of the unit indicates operation (continuously lit) or standby mode (flashing). Dosing can be performed in three modes, configurable on the PCB:

Continuous controlled dosing: This mode allows for a constant flow of product.
Timed controlled dosing: Product is dispensed for a set duration.
Conductivity controlled dosing: Dosing is regulated based on the conductivity of the wash liquor, ensuring optimal concentration.

The Ecodos-L and Ecorinse-L models are designed for liquid/solid detergents and liquid rinse products, respectively, while the Ecoset-L is specifically for detergent.

Important Technical Specifications:

Supply Voltage: AC 24 V, 15 W, 50-60 Hz
Safety Type: Ecodos-L / Ecorinse-L / Ecoset-L: III
Protective Class: IP 54
Detergent Metering Pump (Ecodos-L / Ecoset-L):
- Delivery Rate (Tube size = 3 CC): Approximately 0.6 to 6 l/h
- Head of Suction: Max. 2 m column of water (dependent on back pressure)
- Back Pressure: 0 bar
Rinse Metering Pump (Ecorinse-L):
- Delivery Rate (dependent on back pressure):
  - Tube size = 1/2 CC: Approximately 110 ml/h to 1.20 l/h
  - Tube size = 1/4 CC: Approximately 55 ml/h to 0.6 l/h
  - Tube size = 1/8 CC: Approximately 28 ml/h to 0.3 l/h
- Head of Suction: Max. 2 m column of water
- Backpressure: Max. 3.5 bars (0.35 MPa)
Inputs:
- Power Supply "POWER AC24V": Via external transformer (AC 24V, 15 W)
- Enable "IN1": 5VDC-contact, not galvanic isolated
- Low level "IN2": 5VDC-contact, not galvanic isolated
- Conductivity Sensor 2-wire "7 8": "P120" probe (part no. 418811360)
- Inductive Sensor "1 ... 6": Inductive probe (part no. 2874xx)
Outputs:
- 24V AC-output "OUT AC24V": AC24V, max. 15W*, Triac
- 24V DC-motor "DC-Motor + -": DC24V, speed controlled, max. 15W*
- 24V AC-output "ALARM AC24V": Alarm, AC24V, max. 15W*, Triac
- *Total power consumption max. 15W
LED Indicators:
- Front side: Operation indication (green), Fault indication (red)
- At PCB: "100%"-LED (Concentration indicator), "OUT"-LED (AC-Output indicator)
Control Functions:
- Continuous mode: Speed: Approximately 4 to 40 rpm
- Time control mode: Delay: 0 to 63 sec., Dosing time: 1 to 126 sec., Speed: Approximately 4 to 40 rpm
- Conductivity mode: Concentration range: 0 to 25.2 mS/cm* (for 2-wire probe w. P120 probe), t max. 10 to 1260 sec, Speed: Approximately 4 to 40 rpm
Accuracy:
- Conductivity measuring: ± 10% of value for conductivity <= 3mS/cm, ± 5% of value for conductivity > 3mS/cm
- Inductive mode: ± 10% of value w. P120 probe
Ambient Temperature: Max. 50°C
Dimensions (W x D x H):
- Ecodos-L / Ecorinse-L: 150 x 95 x 145 mm
- Ecoset-L: 215 x 160 x 150 mm
Weight:
- Ecodos-L / Ecorinse-L: Approximately 2 kg
- Ecoset-L: Approximately 4 kg

Usage Features:

Wall Mounting: The units are designed for wall mounting, with specific guidelines for optimal operation (max. 1.8 meters mounting height, max. 3.0 meters distance to product container).
Product Feed Line and Metering Hose Installation: Involves marking water levels, drilling holes, installing tank connectors, and connecting hoses between the unit and the tank/pick-up probe.
Conductivity Sensor Installation: Requires careful selection of measuring and metering points in the tank, ensuring the measuring point is behind the metering point with regard to flow direction. Specific distance requirements from tank corners (at least 50 mm) and heating elements (as far as possible) are provided.
Buzzer Volume Adjustment: The unit includes an acoustic alarm buzzer whose volume can be adjusted by manually turning an inner disk.
Prime Button / Quit Button: Used for priming the pump and exiting certain modes.
LED Indicators: Provide visual feedback on operation (green), fault conditions (red), concentration, and AC-Output.

Maintenance Features:

Maintenance and repair work must only be performed by authorized personnel, wearing suitable protective clothing, and observing all safety provisions for handling chemicals. The power supply from the dishwasher must be interrupted before any repair work. Only original spare parts are to be used, and a functional test must be performed after each repair.

Replacement of Peristaltic Tube:
1. Loosen tube ties and remove product feed- and metering tubes.
2. Open the lever by pressing a strap on the back wall.
3. Remove the old peristaltic tube.
4. Clean the tube housing and remove old silicone residues.
5. Insert a new peristaltic tube and lubricate it.
6. Push the cover back and click the blue lever into the strap.
Replacement of Roller Assy:
1. Remove the cover and old peristaltic tube.
2. Clean the tube housing and remove old silicone residues.
3. Press the fixation strap with a screwdriver and lift off the roller assy holder.
4. Carefully remove the roller assy from the pump head housing.
5. Insert the new roller assy, mount the roller holder.
6. Reinstall the pump head.
Replacement of PCB:
1. Remove the cover.
2. Remove all cables from the PCB.
3. Remove the screws from the PCB and install the new PCB in reverse order.
Replacement of Buzzer:
1. Remove screws from the housing cover and carefully remove the cover with its seal.
2. Remove the two buzzer connectors from the screw terminal "ALARM AC24V" of the PCB.
3. Unscrew and remove the coupling nut from the buzzer and remove the buzzer.
4. Install the new buzzer simultaneously in reverse order.

Troubleshooting:

The manual provides a detailed troubleshooting guide for common issues, categorizing symptoms by "Pump does not work," "Pump does not draw / meter product," "Product leakage from pump head," and "Electronic related." For each symptom, possible causes and corrective actions are listed. For example, if the pump does not work when power is applied, possible causes include a defective pump motor/solenoid valve or blocked tube rollers, with corrective actions being to replace the respective parts. Electronic issues, such as the LED not illuminating or flashing, are also addressed with solutions like checking the transformer/wiring or replacing the PCB.