Technical Data; Initial Use - Würth 0891 385 020 Manual Original

Technical data

Art.
Max. water inlet pressure
Max. water inlet temperature
Assembly
The installation must comply with the
local regulations on the laying of
pipework systems.
Only the backflow preventers
approved for the particular installation
may be used.
A pressure indicator must be installed on existing
shut-off elements which complies with the applicable
regulations on the laying of pipework systems.
Note
Any number of dosing units can be
combined.
Preparation
Remove the two locking screws [2] of the cover.
■
Remove the cover of the metering unit housing.
■
If several metering units are combined:
■
• Remove plug [14] from all metering units
with the exception of the last metering unit.
• Connect the inlet ports of upline units to the
hose connectors [3] of the downline units.
Hold the metering unit on the mounting surface
■
and mark the position of the mounting holes [5]
for the mounting screws.
Two mounting screws are sufficient for up to four
interconnected metering units.
For wall mounting, drill holes of 6 mm diameter
■
at the marked points and insert the dowels
included in the scope of supply.
For mounting on a wooden surface, drill holes
■
of 3 mm diameter at the marked points.
Insert the mounting screws (included in the scope
■
of supply) through the mounting holes [5].
Secure the metering unit.
■
Fit the cover and secure with the locking
■
screws [2].
Remove the hose connector [3].
■
Apply liquid sealant to the thread of the hose
■
connector.
Connect the water supply hose to the hose
■
connector [3].
The connection can be freely selected by ex-
changing the plug and hose connector.
Tighten the hose connector finger-tight.
■
Tighten the hose connector a further 1 1/2
■
turns.
0891 385 020
8.6 bar
65°C
Set the Metering Rate
The metering rate is set via the appropriate measur-
ing probe.
Screw the appropriate measuring probe [7]
■
into the inlet port [6] (selection, see table).
Connect the Metering Medium
Position the drum with the metering medium
■
max. 1.80 m below the metering unit (large
differences in height impair the injection behav-
iour).
Push ceramic weight [9] onto inlet hose [8].
■
Insert the inlet hose with foot valve and ceramic
■
weight into the drum with the metering medium.
Shorten inlet hose [8], if necessary.
■
Push inlet hose [8] onto inlet port [6].
■
Push outlet hose [11] onto outlet port [12].
■
Shorten the outlet hose, if necessary.
■
During operation, water flows through the mixing
controller, the metering medium is drawn in and
diluted.
Switching ON/OFF
Switching on:Press push-button [1].
■
Continuous operation:Pull the tongue off
■
the push-button.
For continuous operation, turn the pressed push-
button [1] 90° in clockwise direction.
Switching off:Release push-button [1] or turn
■
locked push-button in anti-clockwise direction.

Initial Use

Ensure that the technical data of the
device are not exceeded.
Operation
9