SmarTherm 10L 2kw OSHW, Instructions For Use Manual

Page: 4 / 12

4
Instructions for use and maintenance
IV. DESCRIPTION OF THE APPLIANCE
The appliance consists of a body, flange, plastic control
panel & safety return valve.
1.
The body consists of a steel reservoir (water tank) and
plastic housing (outer shell) with thermal insulation
placed in-between, and two threaded pipes for the
cold water supply IN (marked with a blue ring) and
hot water discharge OUT (marked with a red ring). The
inner reservoir is steel protected against corrosion by
a special glass-ceramic coating.
2. The flange is fitted with the electric element and a
magnesium anode. The flange is fixed to the water
tank with bolts.
The element heats the water in the tank and is controlled
by the thermostat, automatically maintaining the preset
temperature. The plastic control panel incorporates: switch
(depending on model), adjustable thermostat (depending
on model), and thermal cut-out and control lamps.
The thermal cut-out switches off the power supply should
the water temperature reach excessive values. If this device
is actuated, you should call a the service helpline above.
The signal lights on the control panel indicate the current
mode of the unit.
The magnesium anode provides additional anticorrosion
protection to the internal tank.
3.
The safety valve prevents the appliance from
emptying in the event of cold water supply
interruption. The valve protects the appliance from
pressure increases higher than the allowed value
during heating (note: pressure will increase when
temperature increases), by releasing the excess
pressure through the drain outlet. Excess water exiting
into the drain during the heating process is a normal
event that must be taken into consideration when the
boiler is installed.
ATTENTION! The safety valve cannot protect the
appliance in the event of water mains pressure exceeding
the rated pressure stated for the appliance (6 Bar).
V. INSTALLATION AND SWITCH ON
1. Installation
We recommend installation of the device close to the
likely outlet (i.e. Tap) where hot water is used, in order to
reduce heat losses. The selected installation location must
be clean and dry at all times.
The appliance is affixed to a wall by means of mounting
brackets attached to the unit‘s body.
Two hooks are used to fix the appliance (min. Ø 6 mm)
firmly on the wall (included in the mounting set). The
bearing plank construction for boilers installed
under and
above sink is universal and allows the space between
hooks to vary between 96 and 114mm. (fig.2)
IMPORTANT: The type of boiler designed to be
installed UNDER / ABOVE a sink is marked on the
appliance. Boilers designed for installation above sinks
are assembled in such a manner that the outlet/inlet pipes
are pointed downwards (to the floor of the premise).
Boilers designed for installation
under sinks are
assembled in such a manner that the outlet/inlet pipes are
pointed upwards (to the ceiling of the premise).
For clear understanding of wall installation schemes,
please refer to fig.2.
ATTENTION! Don‘t place objects, which are not
waterproof under the appliance under any circumstances.
2. Water heater connection to the water supply system
Using a pressure reducing valve (set at 3.5 bar), a non-return
valve and expansion vessel charged to 3.5 bar, the expansion
is accommodated in the vessel. This operates on the hydraulic
principle; i.e. the expanded water is forced into the expansion
vessel due to the in-line non-return valve. The vessel pressure
charge is increased as it accommodates the expanded water,
so that the water is discharged from the vessel when the hot
draw off is opened.
Please note that in ALL cases the DIELECTRIC JUNCTIONS
MUST be connected to the heater before any other
connection is made. This is very important as they
prevent an electrolytic reaction occurring and safeguard
the heater against potential aggressive corrosion.
Only the use of copper pipe is recommended for
connection to the heater. If any other material is used it
must be able to withstand 90°C at 7 bar pressure for long
periods.