55
18.4.2 Removing the fuses
1.
Carry out step
18.4.1
;
2.
Remove the fuses “
X
”
(see Fig. 105)
3.
Reassemble in reverse order.
N
OTE
: F
USE RATING
= 2 A
MP FAST FUSE
Fig. 105
Fig. 104
W5
X
Fig. 103
8.
To remove the main PCB disconnect all electrical
connections and remove the two screws
W5
(see
Fig. 104
);
Fit the correct EEPROM key when replacing the
old PCB.
9.
Reassemble in reverse order.
6.
To remove the display PCB, remove the two
screw
W4
and lift the PCB out (see
Fig. 103
);
7.
Reassemble in reverse order;
18.5 Connecting the external sensor
Fig. 106
1.
Access the main PCB as in step
18.4.1
;
2.
Install the interface PCB supplied in the
external sensor kit on the main PCB
(see Fig.
106)
3.
Connect the wires between the external
sensor and the interface
(see Fig. 106)
.
W4
Summary of Contents for Minima HE System 24 Nat
Page 19: ...19 1 2 A A Fig 14 Fig 16 Fig 13 11 Installing the Boiler continued Fig 15 P P ...
Page 22: ...22 Fig 21 Fig 22 Fig 23 ...
Page 31: ...31 WIRING DIAGRAM FOR CONNECTION TO AN OPEN VENTED CYLINDER DIAGRAM B ...
Page 32: ...32 WIRING DIAGRAM FOR CONNECTION TO AN MTS UNVENTED CYLINDER DIAGRAM A ...
Page 61: ...61 24 Benchmark Commissioning Checklist ...
Page 62: ...62 25 Service Interval Record ...
Page 63: ...63 ...
