ENGLISH
2 Description
This waterheater designed for storing and hea-
ting drinking water. The waterheater contains an
isolated innertank suitable for 10 litres of water.
The in-built electrical heating element heats up
the water. The waterheater can be incorporated
into a water supply system by means of the
hot-water and cold-water connection.
2.1 Main components
The main components are shown in figure 1 on
page 1.
2.2 Product identification
The type plate contains the following data:
- product name;
- type number;
- serial number;
- capacity [L];
- quality marks;
- working pressure [kPa or bars];
- power [W];
- electrical connecting value [V];
- CE marking;
- damp resistance.
2.3 Quality marks
You will find the applicable quality marks on
the type plate.
2.4 Basic operation
Modesto
System under pressure (figure 2.1)
Cold tap water enters the waterheater via the
inlet combination. The thermostat and the elec-
trical heating element heat up the water to the
pre-set temperature. When the water is heated,
it expands, increasing the pressure in the water-
heater. This overpressure is limited by the relief
valve of the inlet combination.
Unpressurised system (figure 2.2)
This application does not make use of an
inlet combination. The special unpressurised
mixing tap drains away the expansion water.
During the heating of the water, the
drips until the pre-set temperature has been
reached. There should never be any obstruc-
tion for the expansion water to drip from the
tap.
Modesto Hotfill
System under pressure (figure 2.3)
The waterheater is included in the main hot
water system. During use, the waterheater is
filled directly with hot water from the main hot
water provision, ensuring that it is always pos-
sible to draw hot water. The thermostat and the
electrical heating element heat up the water to
the pre-set temperature. When the water is hea-
ted, it expands, increasing the pressure in the
waterheater. This overpressure is limited by
the relief valve of the inlet combination.
Figure 2.1 Basic operation of a
pressurised system
Figure 2.2 Basic operation of a
unpressurised system
tap
Figure 2.1 Basic operation of a
pressurised system, "Hotfill"
Modesto/Modesto Hotfill
3 Operation and use
Modesto
3.1 Operation
The temperature switch can be adjusted to
continuously variable.
- Minimum:
Frostproof position (
ture is approx. 10 °C;
- 45 °C:
A Waterheater
Energy saving position. This position can be
B Hot-water
used for washing hands and rinsing, for
hose
instance. This position reduces calcifica-
C Cold-water
tion in the waterheater;
hose
- 60 °C:
D Inletcom-
This is a common temperature for washing-
bination
up water;
E Relief valve
F
Stop cock
- 75 °C:
G Funnel
Maximum position. For hot water or much
H Drain hose
warm water. The water heater supplies app.
J
Tie-wrap
20 litres of 40 °C.
K Drain T - joint
Child-proofing
If required, the setting of the temperature
switch can be blocked by means of a child-
proof lock. (fig. 3).
• Turn the temperatu-
Modesto
re adjusting knob to
the position with the
star;
• Twist the red child-
proofing with a screw-
driver to the desired
blocking position;
• The knob cannot be
turned any further
A Waterheater
than the set value.
B Hot-water
hose
Fig. 3 Temperature adjusting knob with child-proofing
C Cold-water-
hose
D Unpressurised
mixing tap
E Outletpipe/
3.2 Putting into operation and
Draining pipe
for expansion
terminating the system
water
The waterheater is connected to the electricity grid
by means of a wall socket.
Modesto Hotfill
• Connect the power plug to the wall socket to
put the waterheater into operation;
• Disconnect the power plug from the wall socket
to put the waterheater out of operation or turn
the temperature adjustingknob to "
proof position).
3.3 Checking the operation
A Waterheater
Systeem under pressure
B Hot-water
The waterheater heats up the water if the expan-
hose
sion water trickles from the relief valve.
C "Hotfill"
hose
D Inletcom-
Unpressurised system
bination
The waterheater heats up the water if the expan-
E Relief valve
sion water trickles from the outlet pipe of the tap.
F
Stop cock
G Funnel
3.4 Activities regarding water main
H Drain hose
If the water pressure should be cut off, for
J
Tie-wrap
K Drain T-joint
example due to activities regarding
main, flush - as soon as the water pressure is
back - through a cold-water tap untill the
water remains clear.
3.5 Water and energy saving
By using (hot) water with care, you protect the envi-
ronment and decrease your water and energy bill.
). The water tempera-
*
See also page 5 of this manual!
Check if the waterheater is filled
with water!
* "
en-3
(frost
the
11007