Sanremo ZOE COMPETITION Instruction Booklet page 19

ZOE COMPETITION
4.3 WATER CONNECTION
When installed, the boiler and heat exchangers are dry to avoid possible damage to the
appliance caused by freezing.
1) The appliance must be supplied with cold water only.
2) If the mains pressure is higher than 0.6 Mpa (6 bars), you must install a pressure regulator
with 0.6 Mpa (6 bars) maximum output pressure.
3) Connect the drain hose to the drip tray, avoiding excessively tight curves and sloping the
hose appropriately to facilitate water flow.
4) Connect a water inlet hose to the mains water supply, then to the water softener and the
appliance. Connect to the mains water supply in respect of national legislation.
N.B. The water softener is indispensable for correct operation of the appliance, to optimise
coffee delivery in the cup and to extend the working life of components, as it purifies the water
from limescale and residues that would otherwise shorten working life.
Failure to follow these instructions absolves the company from all liability.
Before connecting the pump intake tube, open the tap and run water through the water
softener for about two minutes to eliminate possible.
4.4 WARNING – CORRECT USE OF ROTARY PUMPS
1) PROPER ALIGNMENT OF PUMP AND MOTOR
On occasion the noise of a motor-pump assembly is caused by a poor alignment.
When the coupling between motor and pump is rigid, the pump rotor and the motor rotor
may be out of axis. If this condition is maintained over time the most likely damage is seizure
of the pump.
An efficient solution of this problem is the use of an elastic coupling between pump and
motor. SANREMO supplies an optional kit code N. 10051020.
2) QUALITY OF WATER.
Tight mechanical tolerances of components and materials used for rotary vane pumps require
a very clean water, free from suspended particles. Sand, deposits on connecting pipes or the
resins of the sweetener, when flowing through the pump, may scratch graphite parts causing
problems of insufficient pressure and flow rate.
If a closed loop hydraulic circuit is not available to guarantee a clean water and no sources
of contamination SANREMO recommend to install a 5-10 micron filter between the sweetener
and the pump.
Recommended filter: food approved polipropilene wire cartridge.
Keep the filter clean.: an upstream dirty filter will create cavitation and the pump will break
shortly (see section 4).
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ENGLISH