8
3
6
9
12
Fig. 4
1. General layout
The mechanical clock covers a 24 hour period. Each tappet represents 15 minutes
A
(Fig. 5). An override switch is located on
the clock
B
(Fig 5).
2. To set the time
To set the time of day, grasp the outer edge of the dial and turn slowly clockwise until the correct time is lined up with the arrow
C
(Fig. 5).
3. To Set the "On" and "Off" times
The clock uses a 24 hour system e.g. 8 = 8.00 am and 18 = 6.00 pm "ON" periods are set by sliding all tappets between the
"ON" time and the "OFF" time to the outer edge of the dial.The tappets remaining at the centre of the dial are the "OFF"
periods.
4. For operation
Set the selector switch
B
to the symbol to control the central heating by the clock. Set the selector switch
B
to «
I
» to select
permanent operation or to «
0
» to turn the central heating off permanently.
11
22
33
44
55
66
77
88
9 9
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
1818
1919
2020
2121
2222
23
23
24
24
99
66
12
12
I
A
C
B
Fig. 5
6. Setting the Time Clock
6.1
Setting the Mechanical Clock
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 ...