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VIKING 4G E, S
Rev. 1.0 (29.1.2020)
Operation instructions
5.1.3. Quarterly
1. Do the checking when the kettle is
empty.
2.
Check the water level of the steam genera-
tor (electrically heated models).
3. Switch the kettle on by turning the pow-
er regulator to position 6.
4.
Heat up the kettle until the pressure
gauge shows 1,0 bar pressure.
5.
Open the safety valve by cautiously lift-
ing the relief lever (1) upwards. No
w the
saf
ety valve should open and the pres-
sure gauge should indicate a lower value.
Check that the safety valve functions correctly:
1
1,0 bar
5.1.4. Yearly
• It is advisable to have the unit checked once a year by qualifi ed personnel. Preventive checking is the
best guarantee for operational reliability and saves breakdown costs.
•
Depending on the hardness of water, descaling must be done by qualifi ed personnel. If the ket
tle is
equipped with the cooling function and it has been used often descaling should be done more than
once a y
ear. When doing the fi rst descaling the technician can estimate when the following descaling
must be done.
Fill out the form “Notes on service work” with information on service work which has been done ac-
cording
5.1.5. Periodic service
Like a car, a food preparation appliance should be kept in good working order with the help of preventive
maintenance. This guarantees trouble-free and safe operation of the appliance. Depending on how
much the kettle is used and in what kind of conditions it is operated, the technical condition of the
kettle should be checked according to plan from time to time. For example, the amount of scale built
up on the steam system depends on the use of the kettle and the hardness of local water. Contact
your authorized service provider for recommendations on preventative maintenance to be performed.
Beware of hot steam.
It is not allowed to stand behind the kettle during the safety block check, because, when the check is
completed, the safety valve at the kettle’s rear edge opens, blowing hot steam out of the kettle. The kettle
must be clean and empty. The test causes a momentary strong hissing sound. Wear hearing protection
If the test was not implemented as described it is strictly prohibited to continue using at the kettle, and
you should immediately contact a qualifi ed Metos service to fi x the error.
STOP
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