Maintenance; Cleaning; Inlet Combination; Malfunction - Inventum Modesto Manuel D'utilisation

en-4
4

Maintenance

Make sure that your waterheater is
descaled once a year when you live
in an area with hard water exceeding
12 0 dH (German standard of hardness)

4.1 Cleaning

Use a soft cloth with a non-aggressive clea-
ning product to clean the outside of the
waterheater.

4.2 Inlet combination

Regularly check whether the relief valve
(Figure 2.1) is not obstructed in draining the
expansion water from the waterheater.
The outlet of the relief valve on the
inlet combination must be kept open
to the atmosphere.
The relief valve on the inlet combi-
nation must be regularly operated,
to remove calcium deposits and to
verify that it is not blocked.
5 Malfunctions
This Inventum waterheater is extremely relia-
ble. However, if any malfunctions
occur, follow the table of malfunctions (Table 1).
Contact your fitter if malfunctions
cannot be resolved by means of
the actions prescribed!
Please have the following information ready:
- product name;
- type number;
- serial number.
Do under no circumstance try to
repair the waterheater yourself. A
hazardous situation may occur, and
besides your guarantee will lapse.
The power supply cable may only be
replaced by the Inventum Technical
Service if it should be damaged, this
to prevent dangerous situations.

MALFUNCTION

(Too) cold water.
Too hot water.
Too little water.
Too little water in vertical position.
Relief valve keeps leaking.
Waterheater is leaking.
The waterheater makes
boiling noises.
Table1: Table of malfunctions
6

Legionella prevention!

The kitchen water heater is intended for use near to the kitchen tap which
provide hot water for daily use.
If the water temperature is higher than 45°C for any length of time and the
water is used daily there is only a very limited risk of legionella. To avoid any
risk after a long period of inactivity, it is recommended that the water should
be heated once to a temperature higher than 60 °C and then allowed to flow
through the tap for one minute .
If the kitchen water heater is used for showers (for example in a caravan), or if hot water is
not used for a long period regularly, it is recommended that the temperature be set higher
than 60 °C.
Storage
temperature
<
25 °C
25 - 40 °C
45 - 60 °C
>
60 °C
should Legionella risk at set water heater temperatures
WARNING!
For waterheaters set at high temperature there is a burning hazard (more
specifically for children).
7 End of useful live
All materials used by Inventum are free of hazardous materials which could harm the
environment when these are dismantled and/or destroyed.
EXPLANATION
- Thermostat is set too low.
- Child-proofing is set loo low.
- Hot-water tap is (too) long or is
not isolated.
- Waterheater operated without water.
- Thermostat is set too high.
- Water pressure is too low.
- Stop valve is not sufficiently open.
- Waterheater not placed correctly vertical.
- Water supply pressure is too high.
- Relief valve does not close properly.
- Water mains have not been
properly connected to waterheater
or
- Inner tank is leaking
- Calcification in the waterheater.
Modesto/Modesto Hotfill
Legionella growth Daily hot
water use
No growth not necessary
Growth is possible required
Growth not possible required
Legionella dies not necessary
ACTION
• Adjust thermostat switch.
• Set child-proofing higher (See 3.1).
• Isolate the hot-water tap.
• Reset thermal cut-out. Remove thermostat knob.
• Adjust thermostat switch.
• Check whether the cold- water taps have the
• Contact the waterworks.
• Open stop valve.
• Place the waterheater correctly, see figure 11.
• Place a pressure reducing valve before
• Operate relief valve a number of times.
• Switch off the electricity of the waterheater.
• Close the stop cock.
• Open a hot-water tap to release
• Collect the leaking water.
• Contact your fitter.
• Contact your fitter.
Advice
Setting only for frost protection
Setting not advised
Only for kitchen use
Always safe
same problem.
the inlet combination.
the pressure in the waterheater.
ENGLISH
11007