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Installation instructions
Technical specifications:
Flow pressure (min. - max.: 1,0 - 5,0 bar
Max. Resting pressure: 8 bar
Flow rate: 15,0 l/min at 3 bar flow pressure
Water temperature max.: 70°C (80°C permissible for 10 min./day) - ATTENTION: Risk of scalding!)
Installation information:
Ensure adequate dimensioning in accordance with DIN 1988 Part 3, or EN 806-3. Observe DIN 1988 Part 4 (protection of drinking water,
compliance with drinking water quality) as well as EN 1717 (protection of drinking water against contaminants in drinking water supply
installations).
Water qualities:
SCHELL shower 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
deposits. If necessary, back-wash filters and decalcification systems are to be provided (water upwards of 10° dH). 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 assembly information:
Use corrosion-resistant pipe materials. Seal threads with permitted sealants only (Teflon tape). Do not exceed normal torques!
Rarely used fittings:
Select a pipe layout which prevents stagnant water (ring installation). If required, fit flush valves behind the fittings. If used after prolonged
operating pauses, allow water to drain (see recommendation of the Umweltbundesamt (Federal Environment Agency).
Protection against Legionella:
If there is a risk of high Legionella concentrations, take measures in accordance with DVGW work sheet W 551.
Pay particular attention to installations for persons with immune deficiencies.
Start-up information:
Following installation, each fitting must undergo a pressure test which should be conducted preferably with compressed air. Check the tempe-
rature setting of the thermostat, hot water safety device (38 °C ± 1 °K).
Fittings with thermostat:
ATTENTION: Hot water temperatures which jump over the temperature barrier may result in scalds. If there is a risk of non-observance
(children, etc.), use temperature selection lever with fixed safety device (SCHELL accessory).
External installation:
ATTENTION: If there is a risk of frost, drain fittings, remove functional components or permanently protect fittings with thermal tape.
Information refers to WBD-SC-T only:
All fittings have been tested for function at the factory and set for a run time of approx. 20 – 25 s at the following values:
1. Flow pressure: 3 bar
2. Mix water temperature: 38 °C
3. Shower head flow rate: 10 l/min
Other pressures, flow rates and temperature changes will result in different run times:
1. Run time changes caused by flow pressure changes
Higher pressure – shorter run time
Lower pressure – longer run time
2. Run time changes caused by different flow rates
Lower flow rate – shorter run time
Higher flow rate – longer run time
3. Run time changes caused by temperature changes
Lower temperature – longer run time
Higher temperature – shorter run time
The run time can be set to a flow pressure of 3 bar between approx. 5 and approx. 40 s via the adjusting screw. Run time fluctuations
resulting from pressure fluctuations within the mains supply are normal.
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