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Installation instructions
EN
Installation instructions:
EN
Please consult the SCHELL „General installation conditions" available at www.schell.eu -> Service/Downloads/Installation conditions apply.
Country-specific regulations and standards are generally applicable here.
Make sure there is sufficient allowance for dimensions in line with EN 806-3. EN 1717 (protection of drinking water against contaminants
in drinking water installations) are to be observed.
Water qualities:
SCHELL fittings are suitable for use in drinking water systems in accordance with the current German Drinking Water Ordinance.
Depending on the system, there are sensitive parts within the fittings that need to be protected against dirt particles and limescale de-
posits. If necessary, back-wash filters and decalcification systems are to be provided. Approval is needed to operate fittings with mineral
waters where their contents tend to flocculate, or which are particularly aggressive towards metal materials. All products from Schell 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.
General installation instructions:
Use corrosion resistant pipe materials. Only seal threads with permitted sealants. Do not exceed standard torque!
Rarely used fittings:
Choose pipe routing that will not allow for stagnating water to collect (ring installation). If necessary, provide flush valves behind the
fittings. If using after longer periods of non-operation, let the water drain; see „German Environmental Agency" (Umweltbundesamt)
recommendation.
Protection against legionella:
Provide fittings with integrated flush valve (SCHELL LINUS DP-C-T/DP-SC-T) for thermal disinfection where there is a risk of high concen-
trations of legionella or take other measures conforming with the DVGW (German association for gas and water) worksheet W 551. Take
particular care with installations for people with weak immune systems.
Instructions for commissioning:
Prior to commissioning, all pipe lines are to be flushed in accordance with the ZVSHK (‚German Association for Sanitation, Heating and
Air Conditioning') worksheet EN 806-4. Every fitting is to undergo a pressure test after installation; where possible, perform the pressure
test with compressed air.
Fittings with thermostats:
The temperature setting for thermostats is to be checked; hot water stop (38 °C ± 1 K).
WARNING: After removing the locking disc, water temperatures can cause scalding. Do not remove the locking disc when the fittings
are used by people who are particulary at risk (care facilities, kindergartens). Thermostat fittings have an anti-scalding protection feature
complying with EN 1111.
Fittings with temperature limit device:
WARNING: no anti-scalding protection! The mixed temperature ratio changes for increased hot water temperatures. If necessary, provide
central thermostats.
Mixers without thermostats:
Select operating temperatures for the hot water supply that will not allow risk of scalding. If necessary, provide central thermostats.
Outdoor installation:
WARNING: Empty tap if there is a risk of frost! Remove the functional components or permanently protect the fitting against freezing with
heat tape.
Instructions for self-closing fittings:
All fittings are checked in the factory to ensure they are fully functional and set to a cycle of approx. 20 - 25 s for the following values:
1. Flow pressure: 3 bar
2. Mixed water temperature: 38 °C
3. Showerhead flow: 9 l/min at 3 bar
Different pressures, flow rates and temperature changes lead to different cycle times:
1. Change in cycle times due to flow pressure changes
Greater pressure - shorter cycle
Lower pressure - longer cycle
2. Change in cycle times due to other flow rates
Lower flow rate - shorter cycle
Higher flow rate - longer cycle
3. Change in cycle times due to temperature changes
Higher temperature - shorter cycle
Lower temperature - longer cycle
The cycle setting can be set for between approx. 7 and approx. 30 s at 3 bar flow pressure using the regulating needle (see page 28).
Cycle fluctuations due to pressure fluctuations are usual within the supply network.
Carry out instruction of the operator.
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