Wastewater Connection; Regulations For The Wastewater Connection - Rational iCombi Pro Original Installation Instructions

9 | Wastewater connection

9 Wastewater connection
9.1

Regulations for the wastewater connection

General notes on all devices
Drain pipe does not comply with the regulations
Use a steam temperature resistant drain pipe that at least corresponds to a
pipe of type PP. Do not use a hose.
Incorrect installation of the drain pipe
Do not glue or weld the drain pipe on to the drain of the device.
Do not connect the drain pipe to the device drain with a reducer.
Never seal or pipe the safety overflow
Do not reduce the cross-section of the safety overflow.
The safety overflow but be accessible and clear at all times. It is used for
ventilation and as a drain in the event of blockages.
Contaminated wastewater and wastewater containing grease
Ensure that a grease separator is installed on-site to treat the wastewater.
The device complies with the current valid regulations (SVGW, KIWA,
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WRAS).
The average wastewater temperature is 65°C [149°F].
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When dimensioning the discharge, note that the steam generator's pump-
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ing rate is 0.5 l/s [0.13 gal/s] for a short time.
If there is a floor drain without an odor seal, there must be a free outlet
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distance of 20 mm [0.79 inch].
Each device size can be connected to a wall drain or floor drain.
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Requirements for device size XS GN
In order to achieve optimum energy consumption, it is recommended to inte-
grate a siphon into the wastewater connection.
Diameter of the device outlet: DN 40 mm [1.5 inch]
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The device drain DN 40/50 is enclosed with the device. The device drain
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DN 40/50 is also available separately from the manufacturer under item
number 8720.1031.
Each device must have its own wastewater connection.
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