Installation Instructions; Location And Mounting - ATI B 020 X Série Manuel D'utilisation

UK – pag. 2/4
A. By the heat exchange between the engine cooling water and the water stored inside the tank. This heat exchange is
possible thanks to a heat exchanger. The engine cooling water circulates through a coil placed at the centre of the
tank in order to spread heat uniformly.
B. By means of an electrical heater element (supplied as standard with the appliance).
Main parts (see fig. FIG_5-2):
1. Storage tank: it is entirely made of AISI 316L stainless steel.
2. Casing: the casing is very resistant to bumps and to any external stress, having at the same time a very nice design.
3. Thermal insulation: a thick insulation in expanded polyurethane with closed cells avoids useless heat losses. In this
way heat loss for thermal inertia is reduced to 1°C per hour over a period of 24 hours.
4. Heat- exchanger : made of AISI 316L stainless steel, its exchange's surface allows to exploit at best the heat of the
engine cooling water and to get hot water even in extreme conditions (very small temperature differences).
5. Electrical heater element: the appliance is equipped with an electrical heater element (500/800/1200W, 120/230V ~)
in order to heat water even when the boat engine is off (for example when the boat is in the dock). Material :
corrosion resistant alloy INCOLOY.
6. High limit temperature thermostat: it is assembled inside the electrical heater element and it acts as:
a) adjustable thermostat: it cuts off the electrical supply to the heater element as the pre-set temperature is
achieved (the temperature can be set between 0°C and 70°C, according to the user's needs).
b) safety thermostat: it cuts off the electrical supply to the heater element when, in case of bad operation of the
appliance, the temperature of the water reaches 90°C. A manual intervention is needed to start up the
appliance again (manual reset).
Temperature range :
Temperature differential :
Intervention temperature :
Maximum rating :
Maximum temperature :
7. Pressure relief and non-return valve (and cold water inlet) : it is a non-return valve, preventing hot water backflow into
the cold water supply; it is also a pressure relief valve, protecting the tank against possible excessive pressure
caused by water while heating. The water is discharged from a suitable drain, which the valve is equipped with..
Calibration : 800 ± 50 kpa (116 ± 7 psi)
8. Cold feed inlet
9. Hot water outlet
10. Fixing bracket

6. INSTALLATION INSTRUCTIONS


Installation should be carried out, in accordance with the regulation in force, by a qualified person who can do, not
only a proper set up of the appliance, but also the necessary tests before starting the water heater.

During the original installation or subsequent maintenance, follow the instructions provided in this booklet carefully.
Modifications to any kind of connection or the non-observance of the provided instructions will cause the warranty to
be invalidated.

Before installation, maintenance or repair, cut off the electrical supply to the appliance.

7. LOCATION AND MOUNTING

Two fixing brackets (A - FIG_7-1) are present on the appliance. In this way an easy but firm and safe installation is assured.
For fixing the appliance use the fixing nuts kit (supplied as standard with the appliance).
The appliance has to be installed in such a way that the heat exchanger and/or the electrical heater element are placed at the
bottom (FIG_7-2).
The appliance can be installed in any space, with no restrictions to its conditions. What above described does not exempt
from observing the instructions provided in the paragraph "General precaution measures", at the beginning of this booklet.
FOR OTHER INSTALLATIONS, WHICH ARE NOT MENTIONED IN THIS BOOKLET, CONTACT OUR TECHNICAL
DEPARTMENT. FOR FURTHER INFORMATION CONCERNING INSTALLATION ON SLOPING WALLS, CONTACT OUR
TECHNICAL DEPARTMENT.
8. WATER'S QUALITY AND WATER CONNECTIONS
To extend the working life of the appliance water's quality should be according the following parameters, as foreseen by the
European Directive 98/83/CE (on the quality of water intended for human consumption):
 overall water hardness: included between 15 and 50 °F (in particular where water has undergone a softening or
desalisation treatment)
 chlorides : included between 25 and 100 mg/l)
 PH: included between 6,5 and 9,5
 conductibility: included between 400 and 1500 µS/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. Engine cooling water out (1/2")
4. Engine cooling water in (1/2")
10_testo_UK.docx
from 0 °C to 65 °C
about 9 °C
90 °C
20 A
120 °C
210-0301_libretto_BB_20_inox_2014-