15
ENG
3.4 FILLING THE CYLINDER
Damage to the appliance! Prior to commissioning the appliance, fill
the cylinder with water and bleed the system if necessary.
Filling the cylinder
•
Open the water outlet valve and at least one hot water tap.
•
Open the water inlet valve on the cylinder. 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.
•
Call up the “Purg” function. (see 4.8.6)
•
Set the selector switch on the DHW pump to “III”. (Fig.5(1))
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.5(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
•
Refill manually.
3.4.1 WATER QUALITY
Water quality varies, in order to ensure a long and trouble free life the heat pump the following values should not be
exceeded.
Total hardness
200 p.p.m.
Chloride
250 p.p.m.
Sulphate
250 p.p.m.
Magnesium
10 p.p.m.
Sodium
150 p.p.m.
pH Min
6.5 and Max 8.5
Calccium
20 p.p.p. (if pH between 7,3 and 8,3)
Iron
0,2 p.p.m.
Inadequate water quality or contaminated water can damage the appliance. Scaling is more important at higher
water temperature. In case of water hardness above 600 mg/l, the Langelier saturation index must be determined to
evaluate the necessity for water treatment.
Check the guideline 98/83/EG for the minimal requirements about potable water.
Note: In regions with more corrosive water, safety measures (filter, etc.) must be taken. The first inspection must
always take place 6 months after installation.
2
1
Fig. 5
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