OPERATION
Safety
20
|DHF-C
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2. Safety
2.1 Intended use
This appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-do-
mestic environment, e.g. in a small business, as long as it is used
in the same way.
This pressure appliance is designed to heat DHW. The appliance
can supply one or more draw-off points.
Any other use beyond that described shall be deemed inappropri-
ate. Observation of these instructions and of instructions for any
accessories used is also part of the correct use of this appliance.
2.2 General safety instructions
CAUTION Burns
During operation, the tap can reach temperatures in ex-
cess of 60 °C.
There is a risk of scalding at outlet temperatures in ex-
cess of 43 °C.
!
WARNING Injury
The appliance may be used by children aged 3 and up and
persons with reduced physical, sensory or mental capa-
bilities or a lack of experience and know-how, provided
that they are supervised or they have been instructed on
how to use the appliance safely and have understood
the resulting risks. Children must never play with the
appliance. Children must never clean the appliance or
perform user maintenance unless they are supervised.
!
Material losses
Protect the appliance and its tap against frost.
2.3 Test symbols
See type plate on the appliance.
3. Appliance description
The hydraulically controlled instantaneous water heater heats
water as it flows through the appliance. When a tap is opened,
the appliance starts heating automatically at the selected output as
soon as the start-up volume is exceeded (see chapter "Installation /
Specification / Data table"). You can adjust the hot water volume
and temperature at the tap by mixing in cold water.
You can choose between 2 output stages. In addition, 2 output
stages are hydraulically controlled in relation to the flow rate.
The flow meter compensates for pressure fluctuations. The flow
meter ensures largely stable temperatures. The control unit limits
the flow rate, thereby ensuring an adequate increase in the DHW
temperature at all times.
Heating system
The tubular heater heating system has a pressure-tested copper
cylinder. The heating system is suitable for soft water areas (for
application range, see chapter "Installation / Specification / Data
table").
4. Settings
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00000
42
70
3
1
2
1 Partial load:
This setting is suitable for hand washing at a basin, for ex-
ample. At low flow rates, the appliance starts heating at half
the selected output.
2 Full load:
This setting is suitable for baths, showers and washing up,
for example. At low flow rates, the appliance starts heating
at half the selected output and at higher flow rates, the full
selected output.
f
f
Click the output selector into the required position.
For start volumes, see chapter "Specification / Data table / On".
Recommended settings when using a thermostatic valve
f
f
Set the output selector to full power.
4.1 Recommended tap/valve settings
Note
If the outlet temperature is not high enough when the
draw-off valve is fully open at full power, then more water
is flowing through the appliance than can be heated by
the heating system (appliance is at its output limit).
f
f
Reduce the water volume at the draw-off valve.
Low draw-off rate = high outlet temperature
High draw-off rate = low outlet temperature
Twin lever tap
Output stage
Application range
Partial load
Washbasin
Full load
Bath, shower, sink
f
f
If the temperature is too high, mix in some cold water.
Mono lever mixer
Output stage
Application range
Full load
All
f
f
Turn the tap lever to the highest temperature.
f
f
Fully open the tap.
f
f
Increase the outlet temperature by closing the tap slowly.
f
f
Reduce the outlet temperature by adding cold water or open-
ing the tap further, if possible.
