Cerbos A5 Manual De Instrucciones página 6

thermostat.
To disconnect the unit form the main electrical supply use a bipolar switch conform to CEI-
EN standards (contact opening at least 3 mm, better if equipped with fuses). The earth
connection is mandatory and the earth cable (must be yellow-green and longer than that
of the phases) is fixed to the terminal marked by symbol.
PUTTING IT INTO SERVICE AND TESTING
Before connecting the electrical supply, fill the appliance with water. To do this open the
main tap of the plumbing system and then open the hot water tap. Expect the discharge of
water form hot water tap and hold for few seconds in order to permit the discharge of the
air inside the pipes. Check carefully for eventually leak. Close the hot water tap and switch
on the electrical supply.
USER INSTRUCTION
Starting
To turn on the appliance is enough to put into "ON" position the bipolar switch (see electrical
connection)
Temperature Adjustment Models with external thermal regulation are equipped with an
adjustment knob situated onto the plastic cap. The customer can adjust, as his preference,
the temperature in order to get the best pleasure. We suggest a regulation below the
maximal set in order to achieve the best performance with o good level of efficiency and
good comfort
MAINTENANCE INSTRUCTION
Before execute any type of operation (maintenance, cleaning,...) switch off the appliance.
All intervention must be performed by qualified personnel only.
For operation on thermostat remove the plastic cap after electrical disconnection. For
operation on resistance drain completely the appliance (see respective paragraph).
PERIODIC MAINTENANCE
In order to obtain the best performance from the appliance is advisable to descale the
resistance every year. The operation can be carried out crumbling the limescale from the
cover of the resistance. Take care to not damage it.
In models A12, A15 (A fig.4) the resistance must be removed with an hexagonal head
screw 55 mm; in models A5, Q12, B30 the flange must be removed unscrewing four bolts
(A fig.5-6).
The magnesium anode must be substitute every 2 years (see warrantee conditions). In
order to remove it is necessary to remove the resistance.
DRAINING OF THE APPLIANCE
In order to drain the appliance proceed as follow:
1. Switch off the electrical connection
2. Turn on the tap of inlet cold water
3. Turn on the tap of hot water
Turn on the drain tap (B fig.1-B) if equipped during installation, otherwise remove the
safety valve (A fig.1-B) for undersink models is necessary to overturn the appliance
Bipolar safety reactivation
The appliance is equipped with a safety device against overtemperature (S) with manual
control according to -CEI EN regulations.
In case of abnormal overheating of the water, a thermal safety switch shuts off the electrical
circuit on both supplying phases of the heating elements; in this cases call the Technical
Assistance to restart the appliance
HUSEFUL HINTS
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