4 - Installation / Usage
4.0 Installation requisites
The water heater has to be placed in a dry and well-ventilated location. This precaution is required, even
though water heaters are made of sea environment resistant materials, since electrical systems are present
(in models provided). Moreover, if installed in non-ventilated environments, condensation could occur and
could be mistaken for a leak.
4.1 Assembly procedure
A - Put mounting on the tank
B - Fix water heater on wall, as shown in fig. 1, using suitable mountings for the weight of the water heater
and for the type installation site in the boat.
WARNING: the weight of water heater/unit in the technical data refers to the empty unit. In order to
have the gross weight add to the empty weight, the water amount. (1 liter of water will almost weigh
1 Kg. / 2,2 lb).
C - Carry out the hydraulic connections, relating to the input and output of tap water and from the engine
cooling to the heat exchanger, as shown in fig. 2. Keep the connections between engine cooling system and
heat exchanger as short as possible.
WARNING: the overpressure release pipe must be positioned sloping evenly downwards in a loca-
tion protected from the formation of ice.
WARNING: water might drip from the overpressure release pipe of the device, and this pipe must be
left open to the atmosphere.
WARNING: when fittings are used on water outlets, use Loctite 243, 577 or Teflon on the threads in
order to ensure tightness. Make sure that there is no water leakage.
4.2 Usage
WARNING: follow the instructions of the boat engine manufacturer on how to connect engine cool-
ing liquid to the heat exchanger.
• Fit the stub pipe to the valve using the hose clamp. Fit the pipe so as to allow any possible water leak not to
cause damage to part of the boat.
• Open up hot water taps of the washbasins and start the water pump. This allows water to fill the water
heater and force air out of water heater and pipes. Close taps as soon as air free water comes out.
• Check that there are no leaks on pipe joints.
4.2.0 UNIT POWER SUPPLY (In models provided)
See fig.3 for the connection. Make sure the water heater operating voltage is the same as that provided by AC
network.
A double pole switch has to be included on the electric installation, in order to turn on and off the unit, as well
as a fuse of suitable rating. The insulation between connections contacts of the AC network must be at least
3 mm. The connections to AC network must be done following the National Specifications on electrical instal-
lations.
Before carrying out the connection make sure the cables are not live.
Don't operate the electric element if the tank is not filled with water. It may cause a permanent dam-
age to the electric element
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INSTALLATION AND USER MANUAL QUICK BX BOILER - REV007A
BX
EN