Filling The Cylinder; Water Quality - Bosch Compress 3000 DW FI Series Installation And Operating Instructions Manual

Safety
valve pressure
Cylinder (maximum
type pressure) system
6 bar
HP
8 bar
270...
10 bar
Table 6

5.9 Filling the cylinder

NOTICE: Damage to the appliance!
▶ Prior to commissioning the appliance, fill
the cylinder with water and bleed the
system if necessary.
Automatic filling - systems with water pressure above 3 bar
▶ Open the water outlet valve and at least one hot water tap.
▶ Open the water inlet valve on the cylinder (Fig. 5, [4]).
The cylinder is filled.
▶ Do not close the hot water taps until the water flows steadily
and is free from air bubbles.
The process of filling the cylinder is complete.
▶ Connect the appliance to the power supply via a separate
socket with an earth connection.
If the fault code "E09" appears on the display after a few
minutes, proceed as follows:
▶ Fill manually.
Manual filling - systems with water pressure below 3 bar
▶ Open the water outlet valve and at least one hot water tap.
▶ Open the water inlet valve on the cylinder (Fig. 5, [4]).
The cylinder is filled.
▶ Do not close the hot water taps until the water flows steadily
and is free from air bubbles.
▶ Connect the appliance to the power supply via a separate
socket with an earth connection.
Compress 3000 DW FII
Capacity of the
Water expansion vessel
corresponding to the
in the switch-on pressure of
the safety valve
2 12 l
3 18 l
4 25 l
2 12 l
3 12 l
4 18 l
2 12 l
3 12 l
4 18 l
▶ Set the selector switch on the heating pump (Fig. 11, [1]) to
"III".
Fig. 11 Heating pump
[1] Selector switch
[2] Air vent screw
▶ Select "Purg" operating mode ( page 24, chapter 8.6.5).
CAUTION: Risk of scalding!
▶ Ensure that draining water from the air
vent screw presents no risk to people or
property.
▶ Open the drain screw on the heating pump (Fig. 11, [2])
until the water flows steadily and without air bubbles.
▶ Close the drain screw on the heating pump.
▶ Wait around 5 minutes until the "Purg" operating mode has
finished.
▶ Set the selector switch on the heating pump to "I".
The process of draining and filling the cylinder is complete.
If the fault code "E09" appears on the display after a few
minutes, proceed as follows:
▶ Clear the fault ( page 25, section "Resetting the fault
display").
▶ Refill manually.

5.9.1 Water quality

Inadequate water quality or contaminated water can damage
the appliance.
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