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====== Connection to the central water supply system ======

To use this type of connection, it is necessary to prepare the water supply system. Using a direct connection to the water supply is not recommended; as a rule, 3- or 5-cell filters are used to purify water before entering to machine.


**Attention! Installation of water supply regulation devices is prohibited!**

A PVC hose with a diameter of 6 mm is used to connect to the machine nipple. Make sure that the pressure in the water supply system is not lower than 0.15 - 0.8 MPa (1.5 - 8 bar).

**Connection procedure and rules:**

  - Connect the PVC hose to the fitting on the back of the machine: {{ :watrlinhole.jpg?nolink&400 |}}
  - Set the water supply switch to the upper position: {{ :watersupply13.jpg?nolink&200 |}}
  - Turn the taps as shown in the picture below:{{ :watersupply12.jpg?nolink&200 |}}
  - Start the machine. After loading, the message [[sms_error_1_usa|Error 1 No Water]] will appear on the screen.
  - Open the service menu, place the cupr in the dispensing window, press the "Water pumping" button. 
  - The machine will start the process of filling the system. Water will start flowing through mixer #1 and the hose into the dispensing window. Wait until the process is complete. Repeat pumping until the water flow is stable and the air bubbles disappear.

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===== Setting the water level =====



  - After the system is pumped, you need to adjust the water flow. Restart the pumping and check the water level in the mixer funnel (green line is optimal, unstable work may occure at red lines): {{ :воронка_миксера_уровень_воды.jpg?nolink&300 |}}
  - Adjust the water flow if needed. The adjustment is made by turning the regulator with a screwdriver on the back panel of the machine: {{ :wtrlinregulator.png?nolink&300 |}}
 To increase the water flow, turn the regulator clockwise, to decrease - counterclockwise. Check the water level in the funnel.
  - Press {{ :ms-servicemode.jpg?linkonly |SERVICE MODE}} and wash mixers by pressing buttons {{ :sm-_12washmixer.png?linkonly |1 and 2}} on the screen one after the other.
  - Press  {{ :ms-controller_reboot.jpg?linkonly |CONTROLLER REBOOT}}. After the machine reboots, make sure that [[sms_error_1_usa|Error 1 No Water]] is not displayed on the screen.
  - After setting the water level, check the water output in the service menu “Conversion factor”.


The water supply connection setup is complete.