Calcification indicator
The control detects the increasing calcification in the pressure tank. If the calcification exceeds a pre-
en
defined level, this is signaled as follows:
♦ An acoustic signal sounds.
♦ The "Calcification state" indicator (6) flashes.
⇒ Rinse/descale the pressure tank at the next opportunity, for example at the end of the week.
How quickly a pressure tank becomes calcified and how this affects the energy efficiency of the
heating system depends on a variety of parameters, not all of which can be taken into consider-
ation by the calcification indicator.
For this reason, descaling must be carried out every three months at the latest regardless of the
calcification indicator.
Replacing the handpiece holder
A corresponding description is provided in the operating instructions, which you can download from our
website at
Cleaning / Maintenance
The unit does not contain any internal parts that require maintenance.
Opening the unit is not permitted other than as described below!
Danger of burns!
When the unit is switched off, the red flashing „Tank empty" display (4) signals a boiler tempera-
ture above 80 °C [176 °F].
Only carry out cleaning and maintenance work if the unit has cooled down and has been depres-
surized!
In the case of cleaning/maintenance work while the service cap is open (13), always place the unit
so that water that flows out is collected. For example, place next to a sink.
Cleaning
Do not steam clean the unit under any circumstances.
To clean the unit, only wipe the outside with a damp cloth.
Do not use any solvent-based or abrasive cleaning agents.
Cleaning and maintenance intervals
The intervals required for rinsing the pressure tank, descaling and checking the safety valve, as well
as the steps and safety instructions required for this purpose are provided in the operating instructions,
which you can download from our website at
Checking the overpressure valve
A corresponding description is provided in the operating instructions, which you can download from our
website at
Spare parts
You can find wear parts and spare parts in the spare parts list available online at
www.renfert.com/p918.
Enter the following item number: 18450000 or 18460000.
Disposal information
For this reason, equipment with this symbol may not be disposed of in unsorted domestic waste
within the European Union.
Please contact your local authorities for more information on proper disposal.
www.renfert.com/p918
(see Chap. "Introduction").
www.renfert.com/p918
(see Chap. "Introduction").
www.renfert.com/p918
(see Chap. „Introduction").
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Subject to change