DeLonghi EN660 User manual

EN660

1. ACCESSIBILITY………………………… 3
1.1 Remove side panel………………………. 4
1.2 Remove back panel……………………… 5
1.3 Remove upper panel…………………….. 6
Remove upper panel…………………….. 7
1.4 Replace Flowmeter……………………….. 8
1.5 Remove Thermoblock…………………….9
1.6 Remove the Steamer…………………….. 10
1.7 Remove the Electrovalve………………… 11
Remove the Electrovalve………………… 12
1.8 Remove Coffee Pump…………………….. 13
1.9 Remove Electronic Board………………… 14
1.10 Remove MBU……………………………… 15
Remove MBU……………………………… 16
Remove MBU……………………………… 17
Remove MBU……………………………… 18
Remove MBU……………………………… 19
Remove MBU……………………………… 20
Remove MBU……………………………… 21
1.11 Remove the bottom……………………… 22
2. EXPLODED VIEW………………………... 23
2.1 Exploded view……................................... 24
Exploded view……………………………... 25
Spare part list……………………………... 27
Spare part list……………………………… 28
CONTENTS
2
3. TECHNICAL DATA SHEET…………………………………. 29
3.1 Technical data…………………………………………………. 30
Technical data…………………………………………………. 31
Technical data…………………………………………………. 32
3.2 Functional diagram…………………………………………… 33
3.3 Wiring diagram………………………………………………... 34
3.4 Hydraulic diagram…………………………………………….. 35
3.5 Reading memory…………………………………………….. 36
4. OVERVIEW OF RATING PLATE………………………….. 37
4.1 Rating plate……………………………………………………. 38
5. TIGHTENING TORQUES FOR SCREWS…………………. 39
5.1 Tightening torques for screws……………………………….. 40
6. MEASURING COFFEE TEMPERATURE………………….. 41
6.1 Coffee temperature …………………………………………… 42
7. WATER CIRCUIT……………………………………………… 43
7.1 Steam water circuit……………………………………………. 44
7.2 Coffee water circuit……………………………………………. 45
8.MAIN COMPONENTS………………………………………… 46
8.1 Components……………………………………………………. 47
9. WATER LEAKAGES AND PUMP……………………………48
PRESSURE TEST
9.1 Components……………………………………………………. 49
9.2 Test procedures……………………………………………….. 50
9.3 MBU Closing force setting………….....................…………..51
Spare part list…………………………… ... 26

1. ACCESSIBILITY
3

Unscrew the 4 indicated
screws (T20) Torx
1
1.1 To remove side panel
2
Remove with attention
the panel
4

1.2 To remove back panel
To remove the back of the
appliance, unscrew the
2 indicated screws (T20)Torx.
5

12
1.3 To remove upper panel:
Unscrew the 2
Indicated screws
Lift with attention the
upper panel
6

Take off the panel, pushing it
to the back. Pay attention to
the 3 indicated hooks
3
7

1.4 To replace Flowmeter
1
1. Take off the cable
2. Take off the 2 tubes
2
Take off the metal ring placed under
the pot container. Now it is possible
to remove the Flowmeter
8

1.5 To remove the Thermoblock
1. Take off cables
2. Take off tubes
3. Unscrew the 2 screws and
and the nuts. Now it is
possible to remove
the complete thermoblock.
9

1.6 To remove the steamer:
1
1. Take off tubes
2. Take off cables
3. Unscrew the fixing screw
2
Take off the 2 Thermal Cut Off
Now it is possible to remove the
steamer
10

1.7 To remove the Electrovalve:
1. Unscrew the 2 indicated
screws
2. Unhook the front panel
Using a screwdriver , unhook
the upper part of the front
panel
12
11

3
1. Take off cables
2. Take off tubes
3. Now it is possible to
remove the Electrovalve
12

1.8 To remove Coffee Pump
1. Take off cables
2. Take off the tubes
3. Take off the connector
Now, it is possible to remove the Coffee Pump
Check cable connection! If the cables are reversed,
it is not possible to generate any steam.
13

1.9 To remove Electronic Board:
1. Unscrew the 2 screws
2. Unhook the side of the
front panel
3. Remove the panel
1. Unscrew the 3 indicated
screws.
2. Take off cables
Now it is possible to remove
the electronic board.
12
14

1.10 To remove MBU:
1. Unscrew the 2 screws 1. Take off cables
12
15

1. Unscrew the screws you find
on both sides of MBU
34
1. Lift the lever
2. Lift and take off the cover
16

1. Remove the 2 small covers
56
1. Unscrew the 4 indicated screws
17

1. Unhook the upper panel 1. Remove the panel
78
18

1. Cut the band 1. Remove the cover
910
19

1. Unscrew the 2 screws you
find on the right side
11
1. Unscrew the 2 screws you
find on the left side
12
20