Technical information

57
6.6.2 Removing the P.C.B.
1. Isolate electricity;
2
.
R
emove the inspection cover from the reverse of the
control panel, unscrew the screws “C7” (FIG. 6.85);
3. Unplug all electrical connections from the recuperator
P.C.B on the reverse of inspection cover (FIG. 6.86);
4
.
U
nscrew the recuperator P.C.B mounting screws “C8”
(
F
IG.
6.87);
5. Unplug all electrical connections from the P.C.B.;
6. Unplug carefully the EEPROM “C9” (FI
G
. 6.88);
7. Remove the screws “D1” (FIG. 6.89);
8. Separate the facia panel from the rear of the control
panel ;
9. Remove the main P.C.B., unscrew the screws “D2”,
and disconnect the P.C.B. connection cable “D3” (FI
G
.
6.90)
10.Unscew the display P.C.B. mounting screws “D4” (FIG.
6.91);
11.Remove the display P.C.B. (FIG. 6.92);
12.Replace either P.C.B. in reverse order;
13.Replug the EEPROM key “C9”.
FIG. 6.85
C7
C7
FIG. 6.86
FIG.
6.87
FIG. 6.89
FIG. 6.90
D1
D1
D1
D1
C8
C8
FIG. 6.88
C9
D2
D2
D2
D3