21
ENG
Water connection
WTS +0300130EN rel. 1.0 - 05.09.2022
6. WATER CONNECTION
Have all plumbing work done only by qualified personnel (plumber or specialist with equivalent training) to minimize
risks.
Caution: Risk of electrical shock!
Hazardous electrical voltage! Before starting installation work ensure that the unit is not yet connected to the power
supply.
General Rules
• Obey local water utility regulations
• Verify that necessary safety measures have been taken – in compliance with either German Technical and Scientific Associa-
tion for Gas and Water (DVGW) guidelines (DIN EN1717) or local regulations – that eliminate backflow of polluted water into
drinking water treatment facilities. This may require the installation of a system separator, allowable only when free discharge
into the drainage system is given.
• Ensure that there is a free outflow and drain according to DIN EN 1717. Pay attention to the minimum requirement for the free
flow distance (between the drain hose and the siphon) of 26 mm to prevent microbial contamination.
• Supply water must not exceed 25°C (77°F)
• Allowable range of water pressure: 1,5 to 4 bar / 22 to 58 psi (150.000 to 400.000 Pa). If the pressure is below 1.5 bar, install a
pressure booster, if it is above 4 bar, install a pressure reducer after the reverse osmosis system.
• Install a drain tap shortly before the system to flush the pipe. Flushing the pipe prevents foreign particles such as swarf or
sealing material from entering the system from the pipes.
Connection of the system supply
»
Make sure that the flow rate and pressure correspond to the values given in the technical data.
»
Ensure that the water supply stays closed. This system may only be supplied with water during commissioning
(see chapter 8) !
Connection of the concentrate discharge pipe.
• The diameter of the concentrate pipe must be at least equal to the diameter of the connection piece (see technical data).
Notice
: In any case, a particle filter (min. 100 µm) according to DIN 13443-1 should be installed before the reverse
osmosis system. Without a water filter there is a risk of damage to the system.
Notice
:
The following applies to ROL units:
• For safety reasons the water connections are not screwed during transport. They must be screwed during installation.
• Remove the transport locks from the flow pipes.
Water connections final check
Go down the following water installation checklist:
- ALL screw connections and hoses firmly connected?
- Water supply line flushed before making connections?
- Water connection properly installed?
- Water discharge properly installed?
- Does blow-down water drain freely?
- Water supply line and water discharge leakage-free?
Summary of Contents for Compact ROC 140
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