GEL DECAL - Duplex Installation Pressure Considerations; Duplex Potable Use Recommendations; Softener Start-Up and Testing Procedures; Mixing Valve Adjustment Guide

ENGLISH
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- For pressures lower than 2 atm. install a pumping system with surge tank.
- For pressures higher than 6 atm. install a pressure reducer.
- After the water meter, install a check valve.
- For potable use a residual hardness of 15° f is recommended, for which the installation of a mixing valve
is necessary (see position 20 of the drawing above).
- For potable use the resins disinfection system is recommended (model with AD code).
After installation, for start up and testing of the equipment, directly contact your dealer or
installer from whom you have purchased the machine.
Do not use the equipment before the start up and testing carried out by your dealer or
authorized technical staff.
10 - START UP AND TESTING
The start up and testing of the softener must be carried out by authorized technical staff, who will take
care of:
- CHECKING THE INSTALLATION
- MEASURING THE WATER HARDNESS
- PROGRAMMING THE TIMER
(Note for DUPLEX: before plugging in the two timers, open the water supply valve)
- CARRYING OUT A MANUAL REGENERATION
- CALIBRATING THE MIXING VALVE (for potable use only)
- STARTING UP THE EQUIPMENT
- GIVING INSTRUCTIONS TO THE USER ON USE AND MAINTENANCE OF THE SOFTENER
HOW TO ADJUST THE MIXING VALVE (Reserved to Technical Assistance Service)
The hardness of the water treated by the softener is 0 °f.
If the softener is for potable use, the minimum water hardness recommended is 15 °f.
To get a hardness of 15 °f, the softener must be equipped with the mixing valve necessary for mixing the
mains supply water with the water softened to 0 °f, thus allowing to adjust the hardness up to the desired
value.
The mixing valve must be adjusted only after completing the programming of the Timer in all its
parts (see section 14 or 16).
AUTOMATIC MIXING VALVE (Timer VT 2000)
To check the proper working of the automatic mixing valve, operate as
follows:
- completely open a tap and run water;
- wait 30 seconds, take a water sample and check with the special kit that
the hardness measured at the outlet corresponds (+/- 2°) to the hardness
at the outlet set on the timer;
- close the tap.
Water 15°f
Incoming
water
Water
hardness
0°f
Automatic
mixing
valve