Installation Instructions - ATI BB02005X Manuel D'utilisation

UK – pag. 2/4
5. CONSTRUCTIVE DESCRIPTION AND OPERATION
The purpose of this appliance is to heat sanitary hot water in two different ways (see FIG_5-1.):
A. through the heat exchange between the engine cooling water and the water stored inside the tank. Such a
thermal exchange is possible thanks to a heat exchanger. The engine cooling water circulates through a heat
exchanger placed in the middle of the tank to diffuse the heat uniformly.
B. by means of an electric resistance (supplied with the unit).
Main parts:
1. Storage tank
2. Outer coat
3. Thermal insulation
4. Heat exchanger
5. Electrical resistance
6. Thermostat
7. Safety valve and non-
return
8. Cold water inlet
9. Hot water outlet
10. Mounting bracket
11. Magnesium sacrificial anode: prevents corrosion of the tank. Only in enemelled models

6. INSTALLATION INSTRUCTIONS

The installation has to be carried out, in compliance with the current regulations, by a qualified person, being able not

only to set up the appliance correctly, but also to do all the necessary tests before starting up the water heater.
During the original installation or further maintenance, follow the instructions contained in this booklet carefully. Changes

to any type of connection or the non-observance of the instructions supplied will cause the guarantee to be invalidated.
Cut off the power to the appliance before installation or any intervention of maintenance or restoration.

7. POSITION AND ASSEMBLY
The appliance is equipped with two fixing brackets (A - FIG_7-1). In this way we get an easy, but fixed and stable installation.
Use the kit of fixing nuts, that is supplied with the water heater, to fix the appliance.
The device 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).
The unit can be installed in any room, without any restrictions. The above does not exempt from complying with the
instructions provided in the section "General precautions" at the beginning of this booklet.
For other installation not covered in this manual and for installation on sloped walls contact our technical department.
8. WATER CONNECTIONS AND QUALITY 'WATER
To extend the working life of the appliance the quality of the water must be within the following parameters, in accordance
with the European Directive 98/83/CE (about the quality of water destined to human consumption):
hardness between 15 and 50 °F (in particular where water is subject to a softening or desalination treatment)

chlorides between 25 and 100 mg / l

PH between 6,5 and 9,5

conductivity between 400 and 1500 μS/cm

models BB020 ... X - see FIG_5-2
stainless steel AISI 316L
very resistant to shock and external stresses, having at the same time a very nice design
Made of polyurethane closed cell foam, it prevents unnecessary heat loss. In this way the
loss of heat by thermal inertia is reduced to 1 ° C per hour for a 24 hour period
stainless steel AISI 316L
electric heating element (500/800 / 1200W, 120 / 230V) to heat the water even when the
boat engine is off (for example when the boat is on the dock). Material: INCOLOY alloy
resistant to corrosion
has two functions, namely
a. adjustable thermostat: it cuts off the power to the electrical heating element when the
set temperature is reached (the temperature can be adjusted between 0 ° C and 65 °
C, according to the user's needs).
b. safety thermostat: in case of bad operation of the appliance, it cuts off the power to
the electrical heating element when the temperature of the water reaches 90 ° C. A
manual intervention is necessary to restart the appliance (manual reset).
Temperature range: from 0 ° C to 65 ° C -Differential temperature: around 9 ° C
Temperature: 90 ° C
Maximum temperature: 120 ° C
it prevents the reflux of hot water through the cold water inlet. It is also a safety valve
against overpressure: it protects the tank against any possible excessive pressure caused
by the expansion of water while heating. The water is drained through a suitable drain,
which the valve is equipped of.
Calibration: 800 ± 50 kPa (116 ± 7 psi)
BB20 models .. see FIG_5-3
iron internally subjected to a treatment of the
glazing that is, a glassy coating with firing at
over 850 ° C
enamelled steel
-Maximum power: 20 A
Calibration: 600 ± 50 kPa (87 ± 7 psi)
210-0301_libretto_BB20_2018-01_testo_UK.docx