Multiport Valve Functions; Recommendations - BWT P-FI 400 Notice D'installation Et Conseils D'utilisation

5.

MULTIPORT VALVE FUNCTIONS

CAUTION !
To change the valve handle position, simply rotate it; do not press down on the handle
before turning it.
FILTRATION:
Usual valve
position. Water from the
pump crosses the fitler from
top to bottom and returns to
the pool.
CLOSED:
No water
circulation is possible. The
pump should never be
allowed to run when the
valve is in this position.
CIRCULATION: Water from
the pump returns directly
to the pool without passing
through the filter.
CAUTION !
Always stop the pump Before changing the valve position. Failure to comply with this
instruction could entail serious damage to the filter and cancellation of its guarantee.
6.

RECOMMENDATIONS

IMPORTANT
Upon putting the filter into operation for the first time observe the direction of water flow attentively: in
"Filtration" position, water should flow from the top of the filter to the bottom. In the event that the pipes
were inverted during assembly or that the multiport valve is faulty, water will travel from the bottom to the
top leading swiftly and inevitably to damage to the collector plate and the walls of the tank. The following
signs are strongly suggestive of incorrect assembly:
• low pressure reading at the pressure gauge.
• a rapid drop in the flow rate even after backwashing the filter and ensuring that the pump prefilter is clean.
• continuously cloudy pool water.
CAUTION !
In above ground pools filtration should be stopped, as a safety measure, while the pool is in
use.
18/32
2021/01 - Indice de révision : G - Code : 26650
DRAIN: Water from the
pump passes directly to
waste without passing
through the filter.
BACKWASH:
Water from
the pump crosses the filter
from the bottom to the top
and is then routed to waste
taking with it dirt and debris
trapped by the filter.
RINSE: Water from the
pump crosses the filter from
top to bottom and is routed
to waste.
FILTRATION