45
2016/01 Rev. 0.0
OptiFresh (Bean) NG 2.0
EN
3.8.2 Removing / replacing
The hot water dispensing valves are accessible by
dismantling the cover behind the ingredients canisters.
1. Switch off the machine.
2. Drain the water heater with the drain hose.
Attention: hot water.
3. Take the coffee- and instant canisters from the
machine and remove the back cover.
4. Gently loosen off the wiring and hoses and gently
pull the valves out of the silicone grommets.
3.8.3 Calibrating
In the unlikely event that one of the valves needs
replacing, it should be calibrated to one of the
dispensing speeds given the figure on the right after it
has been fitted.
When calibrating valves, use the special
Valve
Calibration
menu by opening the
Service
Menu
and navigate to
2.7 Hardware Test /
2.7.2 Calibrating Valves
.
1. Place an empty measuring cup with a minimum
volume of 250ml under de drink outlet.
2. Select the valve (DV) which needs to be calibrated
and press recipe button 11 (for 1 sec.) to open the
relevant valve for 10 seconds.
Before calibrate the Brewer valve DV1 extent the
hot water connection so the water can flow directly
into the measuring cup.
3. Set on the basis of the measured quantity the
adjusting screw on to 150 ml.
DV 1 = 15ml/sec. (Brewer)
DV 4 = 15ml/sec. (Hot water)
DV 2
=
15ml/sec. (Mixer 2)
DV 3 = 15ml/sec. (Mixer 3)
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