First Start-Up; Adjusting The Flow Rate; Servicing Instructions - Stiebel Eltron DHC 3 U Instrucciones De Uso

Fig. 18
3
2
1
Fig. 19
5
Fig. 20
Fig. 21
20
-
°C
+
°C
3
2
4
6
7
Concluding the installation
(Fig. 19)
Fit the cover, and secure it with the centre
screw (Item 1).
With DHC 3 U, DHC 6 U and DHC 6 S,
the cover can also be secured as an
alternative with the hexagonal-headed
screws provided (Item 2), in the event of
only a small gap pertaining between the
unit and the floor. To do this, the marked
parts of the cover (Item 3) are to be
broken through.

First start-up

(may only be carried out by a qualified
installer)
Before screwing in/switching on
the fuses, all the hot water valves
connected are to be opened sufficiently
for the pipe network and the unit to be
rendered free of air.
– Check that the small instantaneous water
heater is functioning properly.

Adjusting the flow rate

In the event of the desired temperature not
being attained, the flow rate can be limited
by means of the adjustment screw (take
note of the data in Table 1). The flow rate
should be adjusted such that the desired
temperature 35 – 40 °C is reached.
Handover of the unit
Explain to the user how the unit works, and
familiarise them with its operation.
– Advise the user about possible hazards
(danger of scalding).
– Hand over these instructions to be kept
in a safe place.

Servicing instructions

Applicable to all maintenance work
disconnect unit from the mains circuit.
– Clean the filter, Fig. 20
Release the earthing screw (Item 4,
approx. 2 turns), unscrew the cold water
connection pipe from the differential
pressure switch (Item 5) turn 90 °, and
remove it downwards. Clean the filter
(Item 6). Assemble in reverse order.
Ensure that the earthing screw
(Item 4) is properly tightened.
– Activate the safety thermal cut-out,
Fig. 21
Once tripped, the safety thermal cut-out
can be reactivated after the fault has
been rectified by means of the reset
button (Item 7). The current to the unit
must be disconnected.
(Fig. 18)