Wega Polaris EPU, Инструкция по эксплуатации

Страница: 27 / 30

27
English
CHECKS & MAINTENANCE
ENGLISH
To ensure perfect safety and efficiency of the machine over time, it is necessary to carry out maintenance. In particular,
it is advisable to ask Technical Service to carry out an overall check of the machine at least once a year.
Automatic
Check the following on a regular basis:
• check pump pressure with a pressure gauge which should indicate a pressure of around 8-9 bar. In case of anoma-
lies contact technical service;
• also with a pressure gauge, check the boiler pressure, which should be about 0.8-1.2 bar. This may also require
the assistance of technical service;
• check the wear of the filters, if there is damage to the edges and check if coffee grounds are getting into the cup.
If necessary replace the filters.
Grinder-doser
Check the following on a regular basis:
• check the dose, which should be about 6-7 gr. at a time and adjust the amount as necessary;
• always monitor the degree of grinding and modify as required;
• check the wear of the grinders. They will need to be replaced if there is too much powder in the ground coffee.
Softener
Do the following on a weekly basis:
• perform regeneration of the softener as described in chapter 9 (for the softener in the manual version);
• check that there is salt in the container (for the softener in the automatic version).
C
hecks and Maintenance
To obtain a high-quality coffee, it is important that water hardness of the water used does not exceed 4-5 °F (French
degrees). In the water hardness exceeds these values, it is advisable use a water softener.
Avoid using a water softener if water hardness is less than 4 °F. If the taste of chlorine in the water is especially strong,
a special filter should be installed.
It is not advisable to keep large stores of coffee beans. Never grind large amounts of coffee. Use the amount the
doser holds and if possible use it by the end of the day. Never purchase ground coffee as it expires quickly.
After the machine has not been used for a period of time (2-3 hours) make a few dry runs. Be sure to carry out
regular cleaning and maintenance.
S
uggestions on how to obtain a good cup of coffee