Advertisement
English
Fresh water plumbing connection
For a better understanding of these instructions,
please refer to the "plumbing connection diagram"
found at the back of the booklet.
1. Connect water system to the pressure relief/
non return valve and then to the cold water
inlet marked with a blue rubber washer (see
plumbing connection diagram, points 2 and 6).
NOTE! When Water Heater is mounted verti-
cally with its tubes upwards, the entr y pipes
should be exchanged with the exit pipes and
vice versa.
2. Ensure that pressure relief valve is mounted
correctly (that the arrow points towards the
blue rubber washer). A gate valve, that cuts off
the Water Heater from the rest of the water
circuit during maintenance operations (see
plumbing connection diagram, point 8), is
recommended. Install the valve between the
accumulator tank and the pressure relief valve.
3. The hot water outlet marked with a red rubber
washer (see plumbing connection diagram,
point 1) should be connected to the hot water
taps with tubes or hoses that can withstand the
circuit's temperature and pressure
(max. 120° –7 kg cm
4. An escape valve, useful for maintenance or
drainage operations (see plumbing connection
diagram, point 7) is recommended and should
be mounted between the tube and pipe fitting
connection.
WARNING! When the Water Heater has
been mounted, open hot water taps and allow
the water to run a few minutes (before electri-
cal connection!) in order to expel all air from
the Water Heater and lines thus ensuring that
the heating element is totally submerged,
other wise it will burn out within a few minutes
when power is turned on.
5. Ensure that all pipe fitting connections are
watertight. Mount a small tube to the safety/
non return valve and ensure that overflow runs
into the bilge or other suitable space where hot
water and steam will not cause any immediate
risk to people on board or damage any other
parts, particularly electrical ones.
NOTE! Ensure that the cold water inlet and hot
water outlet pipework has been connected
correctly (see plumbing connection diagram,
points 1–2) and not the heat exchanger pipes
marked with the engine symbol (see plumbing
connection diagram, points 3–4).
2
2
).
Electrical connection
WARNING! Before removing the black
plastic cap, be sure to turn off the electrical supply.
WARNING! Follow the norms and standards
of the local authorities when carr ying out electri-
cal connections. Ensure that your AC voltage
corresponds to that indicated on the electrical
heating element.
Ensure that a high-sensitivity differential cut out
switch and an insulating transformer is mounted
into the electrical system.
Insert a bipolar switch (10AMP/220V or 15 AMP/
110V) in an accessible location from where the
electric supply of the Water Heater's electric
heating element can be controlled.
Protect electric line with a 10 AMP/220V or
15AMP/110V fuse. Use only pliant and not rigid
cable, since vibrations might damage the latter.
The cable area should not be less than 2.5 mm².
The electric cables and connections should be
protected from sea spray and dripping. The cable
must not run in the bilge. Support it securely at
frequent intervals. Protect it from the possibility of
accidental contact with mobile parts.
Strip the insulation from the three wires to bare
about 1 cm of the stranded wire. The two wires
conducting electricity (generally blue/brown)
should be fastened to the thermometer's contact
points marked by numbers 1 and 2. Connect the
earth wire (yellow or green) to the screw nut
contact on the Water Heater tank marked with the
earth symbol.
Adjust the thermostat setting by turning the dial
clockwise with a screwdriver blade until the arrow
points to the desired temperature setting (produc-
tion setting is to 60°C).
Our thermostats are equipped with a high temper-
ature cut out safety switch, which is an electro-
mechanical device that opens the current circuit
and disconnects the electric heating element if the
thermostat fails. When activated, the pin located
near the temperature regulator dial is released. To
check that the pin has not been released and is set
correctly, check that the pin is lying a few millime-
ters below the structures edge.
After double-checking that the Water Heater is
filled with water, the power can be turned on (see
the plumbing connection above). Within a few
minutes it should be evident that the Water Heater
is beginning to heat the water.
Advertisement
