Fitting The Mechanical And Digital Time Clocks - Ariston Type C Installation, Servicing And Operating Instructions

13. Electrical connections
13.1 Fitting the Digital Programmer
The boiler is supplied with a factory fitted mechanical time clock, to
fit the optional digital programmer it is necessary to proceed as
follows; (this should only be carried out by a competent engineer)
- Isolate the electrical supply to the appliance;
- Remove the front panel as described in Section 18.1.1;
- Remove the mechanical clock on the right hand side (Fig. 31)
and pull out the 4 wires (Fig. 32);
N : T
OTE HE WIRES MAY BE TUCKED BEHIND THE ELECTRICAL COVER
- Connect the clock wires as follows;
M M (Fig. 33)
ECHANICAL ODEL
Red Wire - Contact 1
Black Wire - Contact 2
Black Wire - Contact 3
Grey Wire - Contact 5
N : T
OTE HE TWO BLACK WIRES ON
D M (Fig. 34)
IGITAL ODEL
Red Wire - Contact 1
Black Wire - Contact 2
Grey Wire - Contact 3
N : S B W
OTE ECOND LACK IRE IS NOT CONNECTED
- Push the clock back into the panel and refit the casing
panel (Fig. 35).
Fig. 33
5 4 3
G
28
(continued)
C 2 & 3
ONTACTS CAN BE REVERSED
.
2 1
R
B
Fig. 35
.
Fig. 31
Fig. 32
Fig. 34