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Installation instructions
Please note the SCHELL "Standard terms and conditions of business":
https://www.schell.eu/worldwide-en/service/downloads/installation-conditions.html.
Pipe dimensioning and protection of drinking water
Adequate dimensioning according to DIN 1988 Part 300
or EN 806-3 must be ensured.
DIN 1988 Part 100 (protection of drinking water; drinking
water quality control) and EN 1717 (protection against
pollution of potable water installations) must be
observed.
Water qualities
SCHELL fittings are suitable for use in drinking water
systems in accordance with the current German
Drinking Water Ordinance.
In some types of systems, sensitive parts are present
within the fittings that need to be protected against dirt
particles and limescale deposits.
Provide backwash filters and decalcification systems as
necessary. Approval will be needed before operating
fittings with mineral waters whose contents have a
tendency to flocculate or which are particularly
aggressive towards metals.
All SCHELL products can be used with all potable
waters in accordance with the EU Drinking Water
Directive. Applicable national regulations about general
partial water softening for drinking water must be
observed.
Installation instructions
Use corrosion-resistant pipe materials. Seal threads
only with approved sealants. Do not exceed standard
tightening torques.
Rarely-used fittings
Design the pipe routing so that water stagnation is
avoided (ring installation). If necessary, provide flush
valves after the fittings.
Let water drain off before use after longer periods of
disuse (see recommendation from German Federal
Environment Agency).
MODUS EH-T / EH
Protection against Legionella
If there is a risk of high levels of Legionella, provide
fittings with an integrated flush valve for thermal
disinfection or take other measures according to
DVGW Worksheet W 551.
Take particular care with installations used by
individuals with weakened immune systems.
Important information for commissioning
Before commissioning, flush all piping in accordance
with the ZVSHK worksheet, DIN 1988-200 and DIN EN
806-4.
Each fitting must pass a pressure test after installation.
Perform this pressure test using compressed air where
possible.
Outdoor installation
TAKE CARE – If there is a risk of frost, drain fittings
and provide effective anti-freezing protection.
Operator briefing
Brief the operator in accordance with VDI 6023.
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