BWT PRO A, Manual

Page: 49 / 88

2021/03 - Indice de révision : B Code : 29740 TRAITEMENT DE L'EAU
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7.4.1 Filter cleaning mode
Filter cleaning mode is accessible whether Auto or Manual filtration
is activated. It allows a back-wash of the filter media (sand or glass)
to be performed. In this mode, the production of Chlorine in the
electrolysis cell is stopped as water is directed to waste and will not
pass through the cell. After selecting this mode, proceed as follows:
• Switch the filtration pump OFF using the Plus/Minus keys.
• Turn the multi-port valve to the Backwash position.
• Switch the filtration pump ON: The length of the back-wash is timed
on screen.
• Monitor the condition of the water being directed to waste.
• Once the back-wash is complete, switch the filtration pump OFF
and move the valve to the Rinse position.
• Switch the filtration pump ON and rinse for approx 20 seconds.
• Switch the filtration pump OFF, move the multi-port valve to the
Filtration position.
Upon exiting the "Filter cleaning" menu, the system will automatically
revert to the previously programmed mode.
7.5 Lighting management menu
Reminder: this menu allows one or more 12 V AC underwater lights,
up to 50 W, to be controlled simultaneously. Do not exceed 50 W.
Nota bene: When lighting mode is active, the Chlorine production
level (g/h) is reduced by one third of the programmed value .
1. Select the Lighting menu (Up/ Down arrows), and press OK.
2. Using the Plus/ Minus keys, select the lighting control mode and
press OK.
Manual mode: Allows the light to be switched on and off from the
menu. The "status' line indicates whether the light is On or Off. To
change the status, scroll down using the Down key and press the
Plus/ Minus key, then press OK.