Pentair FLECK 2750 NXT Installer Manual page 5

9.2.2 Valve used for filtration ....................................................................................... 135
9.3 Recommendations ...................................................................................... 136
9.3.1 Use original spare parts...................................................................................... 136
9.3.2 Use original approved lubricants........................................................................ 136
9.3.3 Maintenance instructions ................................................................................... 136
9.4 Cleaning and maintenance.......................................................................... 136
9.4.1 First steps............................................................................................................ 136
9.4.2 Power head and/or motor replacement ............................................................. 137
9.4.3 NXT to NXT2 controller upgrade......................................................................... 140
9.4.4 NXT2 controller replacement ............................................................................. 142
9.4.5 Piston and/or seal and spacer kit replacement ................................................. 143
9.4.6 Micro-switches replacement .............................................................................. 145
9.4.7 Cams replacement.............................................................................................. 147
9.4.8 Injector cleaning.................................................................................................. 148
9.4.9 BLFC cleaning ..................................................................................................... 149
9.4.10 DLFC cleaning ..................................................................................................... 150
9.4.11 Valve on tank assembly....................................................................................... 151
10 Troubleshooting .............................................................................. 152
10.1 Error detection ............................................................................................ 152
10.2 Programming error..................................................................................... 154
10.3 Examples of error displayed ....................................................................... 155
10.3.1 NXT controller ..................................................................................................... 155
10.3.2 NXT2 controller ................................................................................................... 155
11 Spare parts and options................................................................... 157
11.1 Valve parts list ............................................................................................. 157
11.2 Power head parts list .................................................................................. 158
11.3 Injector parts list ......................................................................................... 160
11.3.1 1600/1650 injector parts list ............................................................................... 160
11.3.2 1700/1710 injector parts list ............................................................................... 160
11.4 Brine valve parts list ................................................................................... 161
11.5 Safety brine valves list ................................................................................ 163
11.6 Safety brine valves 2310 parts list .............................................................. 163
11.7 Distribution systems parts list.................................................................... 164
11.8 Air checks list .............................................................................................. 165
11.9 Meters parts list .......................................................................................... 165
11.10 Meter cables & meter kits list .................................................................... 166
11.11 CE compliance parts list ............................................................................. 166
11.12 Other components list................................................................................. 166
12 Disposal........................................................................................... 168
Ref. MKT-IM-026 / C - 15.12.2020
Installer manual Fleck 2750 NXT/NXT2 - Table of Contents
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