GB - p. 3/5
ENGLISH
1-210-0129_ Libretto_BB_SPX_2022-01_testo_GB.docx
•
During original installation or subsequent maintenance, follow the instructions in this booklet carefully. Changes to
any type of connection or failure to follow the instructions provided will void the warranty.
•
Before installation, maintenance or repair, disconnect the appliance from the power supply.
7. POSITION AND ASSEMBLY
The black plastic cover has 4 fixing holes (A - FIG_7-1). In this way an easy but firm and safe installation is obtained. To fix
the appliance, use the fixing nuts kit (supplied as standard with the appliance).
The appliance must be installed in such a way that the heat exchanger and / or the electrical resistance are placed in the
lower part (FIG_7-2).
Allowed positions:
•
A, B, C
*
: all models
•
*
: it is necessary to invert the cold water inlet with the hot water outlet. On models 56-47455-03 and 56-47455-01
the heating efficiency keeps unchanged. On the other models, C positioning is allowed, but the heating efficiency
will be reduced.
The appliance can be installed in any space, without limitations. The above does not exempt from observing the instructions
provided in the paragraph "General precautions" at the beginning of this booklet.
8. HYDRAULIC CONNECTIONS AND WATER QUALITY
To extend the life of the appliance, the quality of the water should be in line with the following parameters, as required by the
European Directive 98/83 / EC (concerning the quality of water intended for human consumption):
•
hardness between 15 and 50 ° F (in particular, where the water has undergone a softening or desalination treatment)
•
chlorides between 25 and 100 mg / l
•
PH between 6.5 and 9.5
•
conductivity between 400 and 1500µS / cm
Connect the appliance according to the following indications (FIG_8-1):
1. cold water inlet (1/2 ")
2. hot water outlet (1/2 ")
3. water delivery to the engine cooling circuit (1/2 ")
4. water return from the engine cooling circuit (1/2 ")
Minimum water inlet pressure: 70 kpa.
It is advisable to insulate the hot water pipes: this will avoid unnecessary waste of energy.
Check / safety valve assembly: the valve is supplied with the appliance and not assembled. It must be mounted on the cold-
water inlet when installing the appliance. (S - FIG_8-1).
ATTENTION: do not replace the safety and non-return valve supplied with the appliance with a
non-return valve (clapet).
ATTENTION: connect the water drain of the valve to a rubber hose with an internal diameter of
9.5 mm. This drainpipe must be installed with a constant downward slope and in a place
protected from ice.
9. ELECTRICAL CONNECTIONS
The appliance must be connected to a single-phase power supply (please make sure to connect the correct voltage: 120V or
230V according to the data label on the appliance) and to a good earth connection.
THE MANUFACTURER DOES NOT ACCEPT LIABILITY FOR POSSIBLE DAMAGES
OR INJURY CAUSED BY THE LACK OF EARTH CONNECTION OF THE EQUIPMENT
The appliance is equipped with a power cable with Schuko plug. Connect the power cable in accordance with the wiring
regulations in force in the country where the appliance is installed. In case of replacement of the power supply cable, use only
a cable with the same characteristics (H05 VV-F - 3x1,5 mmq).
If not necessary to use the Schuko plug, it is possible to cut the power cable and connect it to a different plug or directly to the
power supply connection. Please be careful to connect the polarities correctly (FIG_9-1):
•
L
→
phase (brown cable)
•
N
→
neutral (blue cable)
Install a bipolar switch near the appliance to allow the isolation of the appliance.
ATTENTION: BEFORE WORKING ON THE THERMOSTAT, MAKE SURE THAT THE
ELECTRIC POWER SUPPLY IS COMPLETELY DISCONNECTED.
