Bandini A5 SP Manual De Instrucciones página 7

the water meter and in any case as far as much is possible form the water heater. A pressure reducer installed close to the
appliance (below 10 m) require the installation of an expansion vessel on the inlet tube of cold water next the appliance.
During the heating phase a slight drip of the safety valve is quite normal due to the increase of pressure into the boiler. Hence is
necessary to connect the drain outlet of the valve (A fig.2) to a drain pipe installed inclined continuously downward, place without
condensation and always open. The safety valve against overpressure should be operated regularly in order to remove limescale
and verify the correct operation.
Connect the outlet tube of the boiler with red collar to the services by flexible pipe.
3- Electrical connection
If the appliance is not equipped with electrical cable is necessary connect it to the main electrical supply with rigid cable for fix
connection. Before connect the appliance verify that the supply tension is right with the appliance value.
In the electric power supply circuit of the water heater must be fitted with a device assuring the interruption of all
poles in the conditions of overvoltage category III.
For the models A5, A12, A14, B30 the cable has to be inserted in the hole on the plastic cap, for model Q12 the cable must be
inserted into the hole on the back of appliance (A fig.3).
The electrical connection is carried out directly to the clamps (M fig. 4-5-6) of the 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
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
1. If hot water does not come out form the taps, before calling the Technical Assistance make sure that the water and
electrical connections are as specified in the relative paragraphs, or make sure of the continuity of the phases
between the clamps and the relative fastons on the thermostat, after taking it off. If this is not, the bipolar safety device
could have come into operation (call the Technical Assistance).
2. If the warning lights does not light up, but hot water still comes from the appliance possibly it is only a faulty bulb. For
the replacement of the warning light bulb call the Technical Assistance.
- EN regulations.