HygroMatik WL-ROL 160-1200 Series, Manual

Page: 23 / 76

Page 23
6. Water connection
Have all plumbing work done only by quali-
fied personnel (plumber or specialist with
equivalent training) to minimize risks..
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
Association for Gas and Water
(DVGW) guidelines (DIN EN1717) or
local regulations – that eliminate back-
flow of polluted water into drinking
water treatment facilities. This may
require the installation of a system sep-
arator, allowable only when free dis-
charge 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 commis-
sioning (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).
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.
The following applies to WL-ROL units:
• For safety reasons the water connec-
tions are not screwed during transport.
They must be screwed during installa-
tion.
• Remove the transport locks from the
flow pipes.
WARNING
!
NOTICE
NOTICE