3:4 Electrical connection:
All internal connections are made in the factory. The mains power supply cable is
fitted with an international plug (EU plug), which should be fitted to a correctly installed socket. This socket as all
”high-voltage” installations on board, must be carried out to fulfill valid regulations. The Isotemp Slim water heater
is designed to meet EU regulations in this field. When leaving the boat for longer periods, it is recommended to
pull out the cable connector from the socket. This should be done even if the shore power system is shut off, as
there can be a potential difference in the electrical system, between the earth and the salt-water earth of the boat.
This can seriously damage the immersion or water heater.
4. Start up/Test:
Start the engine and check the circulation of the cooling water. Secure the hoses after check-
ing. When using with a fresh water engine system, compensate with anti-freeze for the additional volume in hoses
and heat exchanger. Fill up the water heater with fresh water by starting the fresh water pump, leaving the hot wa-
ter tap open to air the system. Check there are no water leaks and finally connect the power cable when the water
heater is full. Check that the safety valve outlet is free to allow water to escape.
5. Maintenace:
5:1 Winter drain:
When there is a risk of freezing temperatures, the water heater must be drained. This is
done by pulling the lever on the safety valve to its open position. Take off the hot water hose and/or open the air
bleeder screw on the mixer valve, to allow air coming into the tank.
The water heater can be left safely on board over winter.
5:2 Immersion heater:
The immersion heater is on 750W. The thermostat has an integrated working ther-
mostat and a double over heat protection thermostat. This is manually re-settable, by pushing the white indicator
pin, under a white cap, at the top of the overheat thermostat. Also check why the overheat thermostat initially
tripped before re-connection the power supply.
When leaving the boat for long periods, it is recommended to dis-connect the power supply cable plug. This should
be done even if the shore power system is shut off, as there can be a potential difference in the electrical system,
between the earth lead and the salt water earth of the boat. This can seriously damage the immersion and water
heater.
The immersion heater is also available in other versions as well as in 115 volt on special order.
5:3 Controls:
Check regularly that there is no leakage in the connections.
Technical data
I-61019 S Agata Feltria (PU)
Italy
Phone +390541848030
Fax +390541848563
[email protected]
www.isotherm.com
Type
Volume lit.
L x øD x H mm
Weight kg
Immersion heater
602431B000000
24
460 x 390 x 395
11
230V/750W
604031B000000
40
630 x 390 x 395
17
230V/750W
605031B000000
50
750 x 390 x 395
20
230V/750W
607531B000000
75
1040 x 390 x 395
26
230V/750W
Connection freshwater. BSP ½” outside, Engine water BSP ½” outside
Material: Tank and connections AISI 316, outside cover and mounting feet AISI 304
Safety valve: 4.5 bar / 65 psi
Insulation: Polyurethan foam
The manufacturer reserves the right to change the specifications without prior notice
