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5.2 Fitting the filter bracket
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CAUTION!
f Before installation, read Technical data (Chapter 2) and Operating/Safety instructions (Chapter 4).
f To connect the filter system to the appliances only use hoses according to DVGW W 543 or NSF 42/53.
f When installing accessories (hoses, connection sets), observe the installation dimensions and bending radii.
To install the filter system, choose a location that enables simple connection to the water
mains.
The bracket has to be aligned and mounted to allow a convenient access and replacement of
the filter cartridge.
The filter system must be securely bolted to a wall using the bracket.
The filter system can be operated in a vertical or horizontal position.
For easy service and replacement of the filter cartidge after installation a minimum clearance/
distance of 65 mm (2.56 inches) is required at the bottom of the cartridge.
When installing the filter cartridge for horizontal operation, ensure that it is resting on the
floor.
5.3
Determining filter capacity and bypass setting
The general hardness can be requested from the water supplier or determined with a titration
test. The bypass setting can be selected based on the general hardness and its application.
The typical filter capacities are shown in Table T1 or T2 (last page).
There are four setting options for the bypass. The default bypass setting is "2". The bypass
can be set by pressing the button "a" and twisting the cap on the filter head clockwise or
counter clockwise until the required bypass setting is reached and the cap snapps into place.
The bypass should be sealed with the included warranty label. Note month and year on the
label.
NOTE!
f BWT recommends to choose the size of the filter cartridge with its capacity to be due for replacement in 6 month intervals.
5.4 Fitting the filter head
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CAUTION!
f The filter head is never to be left under mains water pressure without a mounted filter cartridge.
f The tightening torque of the fittings (inlet/outlet) must not exceed 15 Nm!
NOTE!
f The integrated Aquastop in the filter head prevents a water flow without mounted filter cartridge.
Insert the filter head into the filter bracket, observe the correct direction of flow.
Mount hoses (observe the bending radii!) for the water intake and outlet at the filter head.
Connect the water intake hose to the existing check/shut off valve in the intake.
Connect the water outlet hose to the appliance.
5.5 Installing a water meter
BWT recommends the installation of a water meter in the inlet of the filter cartridge in case
the filter system is used for a device without an integrated water meter (e.g. coffee machine)
which indicates the required replacement of the filter cartridge. With the water meter the filter
cartridge's residual capacity can be determined at any time. Observe the operating instructions
of the BWT Aquameter.
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5.6 Installing/replacing the filter cartridge
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CAUTION!
f The filter cartridge may only be installed in a genuine BWT filter head.
f Work cleanly, avoid impurities on the filter system.
f Close the check/shut off valve before exchanging the filter cartridge.
Unpack the filter cartridge and remove the hygienic cap.
Before installing the filter cartridge mark the installation and replacement date (no later than
6 months) on the type label of the filter cartridge.
In case of replacement unscrew the filter cartridge clockwise out of the filter head.
Screw the new filter cartridge counter clockwise into the filter head.
Open the check/shut off valve and check the system for leaks.
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NOTE!
f During commissioning, the filter has to be purged/flushed.
f To avoid airlocks during initial installation, turn the cartridge upside down and flush the required volume through the flush valve. Whilst
flushing, press and release the button every 15 seconds for 2-3 seconds each time. This will agitate the resin and help remove any
trapped air bubbles.
f For the best results, occasionally turn the cartridge upside down whilst it is in use. This will remove any accumulated gases that may be
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trapped within the resin. After a few seconds, return the cartridge to the normal upright position.
f The minimal flushing volume is given in Section 2.2. The volume of purge water is to be dismissed.
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6 Service and maintenance
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CAUTION!
f Failure to respect the replacement intervals of the filter cartridge may cause damage to the downstream appliances.
f Failure to replace the filter head or the hoses after 5 years can cause property damage.
Drinking water is food
Handle the filter system hygienically. Clean the filter system regularly
with a damp cloth. Work cleanly especially when replacing the filter car-
tridge. Avoid using alcohol based cleaners, acidic and strong chemicals.
Check for leaks
Regularly
Regularly check for breaks, squeezes and pinch points. Replace damaged
Check the pressure
hoses
hoses.
Break in operation/
After a break in operation exceeding two days, the filter cartridge should
shutdown
be purged with a minimum of 4-5 liters
After 6 months
Replace filter cartridge
than 4 weeks
Replace filter head
After 5, after 10 years the latest
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Replace pressure hoses
After 5 years
of water.
(1.1-1.3 US gallons)
; after a shutdown of more
(regardless of the residual capacity)
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