4
System parts description
Backflow preventer
The backflow preventer (a) is installed to protect the water system from
being contaminated in the case of a backflow. The backflow preventer
uses an atmospheric vent for any abnormal situation. This vent is
therefore to be kept unobstructed. Keep in mind that water might come
out of this vent.
The backflow preventer is flow directional.
Water filter
The water filter (b) will help keep the system running longer and make sure the final
product is as clean as possible.
On the top of the filter housing is a red button. This bottom is used to release pressure
when changing the filter.
The filter housing can be removed by twisting the housing to the left. To help remove
the hosing a specialty tool can be purchased.
See maintenance section for further information on filter change interval.
Dosing unit
The dosing unit (c) uses the waters pressure to mix in a
concentrate. The injection rate of the concentrate can be adjusted
using the scale at the bottom of the unit. The dose of concentrate
will be directly proportional to the volume of water entering the
unit, regardless of variations in flow or pressure. The ratio can be
adjusted using the scale shown in picture 5. Make sure the locking
ring at the bottom of the adjusting “handle” is loosened before any
movement of the adjusting ring. All adjustments should be made
without pressure on the unit. The eyelet in the white part of the
adjusting handle is used to set the current setting and is used when
adjusting the ratio. The dosing unit is flow directional, the flow
direction is indicated with an arrow, between the inlet and outlet.
There are two different versions of the same scale. One is a
percentage and the other is ratio. The scales are on opposite sides
of the unit and will do the exact same thing.
Picture 2 Backflow preventer
Picture 3
Water filter
Picture 4
Dosing unit
Picture 5 Dosing
unit scale
