Hydraulic Connections; Suction Line; Injection Line - Tebas Efka270 Installation And Maintenance Instructions Manual

POWER LED
Green light; slow flashing indicates that the unit is powered and normally functioning, while fast
blinking indicates a fault (lack of liquid to be dosed or pump disabled)
LED PUMP1, 2
Red light is on when the corresponding pump is dosing
CAL Key
Provides access to the "Configuration", "Calibration" and "Manual Mode" menus; confirms parameter
modifications
 Key
Scrolls the available menus/options; in calibration and configuration modes decreases the displayed
value
 Key
Scrolls the available menus/options; in calibration and configuration modes increases the displayed
value
ESC Key
In calibration and configuration modes exits without saving the modifications; from manual mode
resumes to normal operations
ON/OFF Key
Activate / de-activates the unit or confirms alarms; both the disabled dosing or alarm condition are
indicated by the POWER LED that flashes fast
(Warning! The unit remains disabled even in case of shutdown/restart)

HYDRAULIC CONNECTIONS

Check that the suction line does not exceed the maximum height of 1.5 m from the tank bottom. Unscrew the pipe-wrench
nut and remove the two protective caps from fittings (in the case a pump head needs to be removed, it is recommended to
reuse the protective caps, to prevent any leakage from the pump body).
Note: If the product to be dosed is sulfuric acid (10% max concentration), previously remove any water from the pump and
use polyethylene pipes.
All operations to tighten the pipe connections of the pumps must be done by hand, without using any tools (e.g. pliers
squeeze tube), to avoid damaging the hydraulic connections.
Warning! Before performing any kind of operation on the pump, carefully read the HSDS of the chemical to be dosed, in
order to define the proper behaviours to be followed, and the personal safety equipment to be worn.

Suction Line

(also see drawing)
1. Unscrew the fixing nut of the connector located on the bottom left side of the
pump head and marked in the figure with an incoming arrow.
2. Cut the PVC Crystal, transparent tube.
3. Insert the fixing nut and the tube-wrench on the tube.
4. Mount the tube on the conic hose of the suction fitting, pushing it until it
reaches the stop collar.
5. Fix the tube by screwing the fixing nut onto the suction connector of the pump
head.
6. Locate the PVC Crystal tube inside the tank and/or the suction lance.
7. Unscrew the fixing nut of the foot filter..
8. CuCut the transparent PVC Crystal tube..
9. Insert the fixing nut and the tube-wrench on the tube
10. Mount the tube on the conic tube-holder of the foot filter
connector,pushing it until it reaches the stop collar.
11. Fix the tube by screwing the fixing nut onto the connector of the foot filter.
12. Screw the foot filter onto the suction lance (if used) and/or locate it in its
working place
Notes:
•
The foot filter must be located at a minimum distance of 5 cm from the tank bottom.
•
If a dense product is dosed, it is recommended to remove the small inside filter from the foot valve, in order to facilitate
the suction.

Injection Line

(also see drawing on the previous page)
1. Unscrew the fixing nut of the connector located on the bottom right side of the pump head and marked in the figure with
an outgoing arrow.
2. Cut the white, semi-rigid polyethylene tube.
3. Insert the fixing nut and the tube-wrench on the tube.
4. Mount the tube on the conic tube-holder of the suction connector, pushing it until it reaches the stop collar.
5. Fix the tube by screwing the fixing nut onto the head connector of the pump head.
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