Technical Information
5
CVA 4062/CVA 4066/CVA 4068 Coffee Systems
080 Water Intake (CVA 4066 Only) ........................................................................ 101
2 Function ............................................................................................................. 102
2.1 Plumbed Water Line (CVA 4066 Only) ....................................................... 102
2.2 Safety Concept for Water Intake ................................................................. 102
4 Service .............................................................................................................. 102
4.1 Water Inlet Filter Removal .......................................................................... 102
4.2 Water Inlet Valve (1Y63, 2Y63) Removal ................................................... 103
090 Technical Service Bulletins ............................................................................ 105
1 Some CVAs May Experience a Power Electronic TRIAC Failure ..................... 105
2 The Display Clock on Models CVA 4062 and CVA 4066 May Change Time
Unexpectedly ..................................................................................................... 106
3 CVA & French Roast Coffee ............................................................................. 106
4 CVA Water Tank Cleaning ................................................................................ 107
5 CVA 4062 & CVA 4066 Milk Pipework Conversion ........................................... 107
6 CVA Door Hose Replacement ........................................................................... 114
7 CVA Replacement Coffee Grinders .................................................................. 115
8 CVA 406X Hot Milk Temperatures .................................................................... 115
9 Understanding CVA 40xx Temperature Fuses .................................................. 116
10 CVA 406x & MDU Updates ............................................................................... 117
List of Figures
Figure A-1: Compression Fitting ....................................................................................... 9
Figure D-1: Front View of Appliance ............................................................................... 14
Figure D-2: Interior View of Appliance ............................................................................ 15
Figure D-3: CVA 4062, CVA 4068 Component Layout ................................................... 16
Figure D-4: CVA 4066 Component Layout ..................................................................... 17
Figure 010-1: Removing the Appliance from a Cabinet .................................................. 19
Figure 010-2: CVA 4066 Plumbing ................................................................................. 20
Figure 010-3: CVA Feet Adjustment ............................................................................... 21
Figure 010-4: CVA Mounting Locations .......................................................................... 21
Figure 010-5: Door Hinge Adjustment ............................................................................. 22
Figure 021-1: Dispenser Height Adjustment ................................................................... 26
Figure 025-1: Optical Interface for Diagnostic Support and Program Updating .............. 29
Figure 025-2: Right and Central Covers ......................................................................... 31
Figure 025-3: Hose and Wire Connections ..................................................................... 31
Figure 025-4: Main Dispenser Retaining Screws ............................................................ 32
Figure 025-5: Control/Display Electronic Cover and Power Electronic Connection ........ 32
Figure 025-6: Control/Display Electronic Connections .................................................... 33
Figure 025-7: Door Hinge Screws ................................................................................... 34
Figure 030-1: Brew Unit Microswitches ........................................................................... 36
Figure 030-2: Brew Unit Switching Cam, Ground Quantity Compensation Microswitch . 37
Figure 030-3: Measurable Volume Areas 1, 2 and 3 ...................................................... 37
Figure 030-4: Selectable Volume Areas 1, 2 and 3 ........................................................ 38
Figure 030-5: Home Position, Rear View ........................................................................ 38
Figure 030-6: Home Position, Front View ....................................................................... 38
Figure 030-7: Compressing Position, Rear View ............................................................ 39
Figure 030-8: Compressing Position, Front View ............................................................ 39
Figure 030-9: Drain Position, Rear View ......................................................................... 40