Nespresso Citiz Service Manual page 4

4
9 Function tests
................................................................................................. 130
9.1 Safety instructions.......................................................................................... 130
9.2 Required equipment....................................................................................... 130
9.2.1 Overview ............................................................................................... 130
9.2.2 Pressure adapter .................................................................................. 131
9.3 Measure flow rate........................................................................................... 132
9.4 Pressure and leakage checks ........................................................................ 133
9.4.1 Preparations.......................................................................................... 134
9.4.2 Test run ................................................................................................. 135
9.5 Measure coffee temperature .......................................................................... 136
9.6 Milk frother tests............................................................................................. 138
9.6.1 Measure hot milk temperature .............................................................. 138
9.6.2 Measure milk froth ratio ........................................................................ 138
9.7 NTC temperature sensor functionality............................................................ 139
9.8 Protective earth (PE) continuity test............................................................... 141
9.8.1 What coffee machine has to be tested and when? ............................... 141
9.8.2 General ................................................................................................. 141
9.8.3 Test sequence ...................................................................................... 142
9.8.4 What to do if the protective earth continuity test fails............................ 143
9.9 Protective insulation test ................................................................................ 144
9.9.1 What coffee machines have to be tested and when? ........................... 144
9.9.2 General ................................................................................................. 144
9.9.3 Test sequence ...................................................................................... 145
9.9.4 What to do if the insulation test fails ..................................................... 147
10 Explosion Drawings
10.1 Model Citiz, core unit D ­ range (EF 483)....................................................... 148
10.2 Model Citiz, core unit C ­ range (EF 484)....................................................... 149
10.3 Model Citiz & milk, core unit D ­ range (EF 485)............................................ 150
10.4 Model Citiz & milk, core unit C ­ range (EF 486)............................................ 151
10.5 Model Citiz & Co, core unit D ­ range (EF 487).............................................. 152
10.6 Model Citiz & Co, core unit C ­ range (EF 488).............................................. 153
11 Parts List
.......................................................................................................... 154
12 Notes
.................................................................................................................158
Citiz service manual
...................................................................................... 148