1500 and 2000 l: There are two G¾ fi ttings in the front of the unit to hold the sensors (in immersion
sleeves) or thermostats, as appropriate. Once again, the position of the component determines the
switching point for reheating. The temperature can be read from the thermometer supplied. It is to
be fi tted on the front of the unit in the G½ fi tting.
If applicable, suitable protection against scalding must be fi tted to the hot-water outlet.
Finally, attach the supplied type plate in a visible position.
4. Installing the foam insulation (from 750 l)
Up to three people will be needed to install the insulation, depending on the size of the cylinder. In
the case of variants intended for retrofi tting (specially labelled), internal installation can take place
before the insulation is installed.
1. The insulation should be raised to room temperature before use (R). The expansion behaviour
of the insulation surface changes in the event of low room and/or ambient temperatures. For
PVC surfaces: Installation can only take place when the insulation has reached the
recommended temperature of approx. 20 °C (S). Installation is extremely diffi cult and may
even prove impossible if this temperature is not reached.
2. The perforated cut-outs must be cut out as required with a suitable blade before applying the
insulation (R). The insulation can be used for different types of cylinder. Please note which parts
are needed!
3. Place the insulation over cut-outs/inspection fl anges, etc., and lay it evenly around the cylinder
(S). Starting at the centre of the insulation, stroke and tap it with fl at hands evenly in both
directions to achieve a good fi t around the surface of the cylinder, without air bubbles (T).
4. Slowly zip up the fastener/adjustable hooks (fi rst or second rest position) while pushing the
foam surfaces (W) together.
5. If necessary, readjust the insulation by tapping with fl at hands and re-tightening the hook
strips, if applicable (T).
6. Insert the round top foam section in line with the cut-outs and put on the deep-drawn cover or
secure the polystyrene lid with an angled strap (Y).
7. Glue or mount the escutcheons in place and mount any fl ange insulation as required (Y).
8. Additional assembly of the cylinder must be performed in accordance with the installation
instructions and applicable technical regulations (Z).
Warning:
do not use pliers, tension belts, etc.!
Warning:
do not expose the insulation to fi re or naked fl ames as it is fl ammable. Maintain minimum
distances from heat sources.
13
5. Further information
No liability shall be accepted for damage that is caused by failure to follow the installation and
operating instructions.
The required maintenance measures must be carried out by specialists or by the user on the basis
of local operating conditions and standards based on experience. The system must be subjected
to annual inspections and documentation under the terms of an agreement.
Protective gloves must be worn when cleaning inside the unit. The fl ange seal must be replaced
after cleaning.
The cylinder must be situated to allow easy access for maintenance, operation, any repairs or
replacement. The construction measures required for this are not the responsibility of the
manufacturer or the responsible distributor. Furthermore, facilities for the secure collection and
drainage of water in the cylinder must be provided to avoid water damage.
Warning:
hot water may escape from the safety valves or when draining the cylinder. Danger - risk
of scalding. The system operator must prevent untrained persons from being put at risk.
Inspect the Mg-anode after two years of operation, and subsequently each year thereafter,
replacing if necessary.
In hard-water areas a commercial descaler may be fi tted in series, as the cylinder manufacturer is
not responsible for natural lime-scale build-up.
In principle, a minimum conductivity of 100 µS/cm must be adhered to, whilst the other properties
of water guaranteed in the relevant legislation on mains water must be adhered to. If in any doubt
the manufacturer should be consulted.
Sediment traps are recommended for both mains water and hot water systems. They, too, must be
regularly inspected in compliance with the system conditions.
Avoid electro-mechanical corrosive infl uences and mixed installations.
Diagram of the mains water connection:
14