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• cycle step #4, time remaining 2 hours 40 min:
• the timer advance to regeneration cycle step #5:
• cycle step #5, time remaining 15 min:
8.1.3
LED status
Blue
Blue flashing
Green
Green flashing
Red
All LED flashing
8.2
Recommendations
• Use only regeneration salts designed for water softening in accordance with EN973;
• for optimal system operation, the use of clean salt, free from impurities, is recommended (for
example salt pellets);
• do not use ice melt, block, or rock salts;
• the sanitizing process (both with liquid and electrochlorination) may introduce chlorine
compounds which may reduce the lifetime of the ion exchange resins. Refer to the technical
guides for resins in common use, providing necessary checks on the system.
8.3
Manual regeneration
Mandatory
The controller must be in service in order to enable this procedure !
8.3.1
Manual delayed regeneration
1. Press
(for NXT ) or
ð The regeneration starts on the programmed regeneration time. See chapter
Regeneration time [
NXT2;
ð For NXT: The blue LED flashes and the letters RGQ take place on the valve state;
Ref. MKT-IM-026 / C - 15.12.2020
the unit is in service and no errors detected;
the unit is in service with a queued regeneration;
the unit is in regeneration;
the unit is in standby position, in a multi tank system;
the controllers have detected an error;
delayed unlock, only for NXT2.
(for NXT2 ) once for delayed regeneration.
Page 77] for NXT and chapter Regeneration time [
→
Installer manual Fleck 2750 NXT/NXT2 - Operation
Once in position:
During transition to cycle:
Once in position:
→
Page 108] for
129 / 170
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