English
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1 General information
1.1 Abbreviations and subject index
Softening:
A pre-treatment process that removes the hardness from the raw water. The
hardness is caused by the calcium and magnesium ions contained in the wa-
ter.
Raw water:
The raw water is the untreated drinking water that is connected to the con-
nection for the water inlet.
RO:
Abbreviation for reverse osmosis.
Permeate:
The largely desalinated “pure water extracted through reverse osmosis”. The
key parameter is the electrical conductivity in μS/cm.
Concentrate:
The waste water that contains all the salts and minerals removed from the
raw water.
Membrane:
The device’s filter, which desalinates the raw water under high pressure and
throughput.
TDS:
Total dissolved solids: total content of dissolved salts, measured in mg/l.
SDI:
Silt density index
(blockage index)
: The silt density index is a measure of water’s ten-
dency to cause a blockage.
Conductance,
electrical conduc-
tivity:
The lower the value for electrical conductivity
(μS/cm)
measured by the RO de-
vice, the lower the salt concentration in the permeate product.
EBA:
Abbreviation for installation and operating instruction
Water conversion
factor
(WCF)
:
The ratio between the quantity of pure water produced
(permeate)
and the waste
water produced.
Bypass setting
with cold drinking
water:
Using the bypass setting on the blue setting mixer head
(at the top of the device below
the service cover)
, an amount of cold drinking water can be added to the pure wa-
ter produced. By turning the blending head while holding the blue switch,
you can set the required locking position 0, 1, 2 or 3. The higher the number
of the locking position, the higher the mixing ratio of the feed water
(Chapter 3.2)
.
The BWT bestaqua 14ROC Coffee enables continuous adjustment of the by-
pass independent of locking position 0, 1, 2, 3).
1.2 Scope of delivery
The scope of delivery of the BWT bestaqua 14ROC Coffee includes the following components:
RO filter cartridge bestaqua 14ROC Membrane
Mineralisation bestaqua 14 Premium
Installation and operating instructions
Connection material: Outlet connection (DN50), permeate adapter F3/8” x M3/4”, 1.5 m hose
JG 8 mm, connection cable for the electricity supply (type F / type I / type G)
The front side displays the following components of the BWT bestaqua 14ROC Coffee:
1 RO filter cartridge bestaqua 14ROC Membrane
2 Remineralisation bestaqua Premium 14
3 Status LED
The following connections are seen on the rear of the BWT bestaqua 14ROC Coffee:
4 Top service cover
5 Socket for PE adapter type IEC 320
6 Device ON/OFF switch
7 Connection for feed water M¾”
8 Connection for concentrate 8 mm JG (5/16”)
9 Connection for external tank 8 mm JG (5/16”)
10 Connection for permeate M3/8”
11 Technical data for BWT bestaqua 14ROC Coffee
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