2
32°C
31°C
30°C
29°C
28°C
27°C
26°C
25°C
24°C
23°C
22°C
21°C
20°C
19°C
18°C
17°C
16°C
15°C
14°C
13°C
MIDNIGHT 3:00 6:00 9:00 12:00 15:00 18:00 21:00 MIDNIGHT
COOLING
HEATING
EVENT 1
EVENTS
2, 3 & 4
EVENT 5
EVENT 6
EXAMPLE
USER SET
PROGRAMME
3°C
DEAD
BAND
MANUAL OVERRIDE
=
USED
AT 9 AM TO RAISE
TEMPERATURE BY 2°C.
PROGRAMMED 3°C DEAD
BAND MAINTAINED.
FACTORY PRE-SET PROGRAMME
The table should be used to record the users programme. If the HC75 has been configured for
5/2 day control only days 1 and 6 need be recorded.
DAYS
PR
OGR
AMME
EVENTS
123456
FORMAT
CLGHTGCLGHTGCLGHTGCLGHTGCLGHTGCLGHTG
TIME TIME TIME TIME TIME TIME
1
(Monday)
Pre-set
25.0 20.0 27.0 15.0 25.0 20.0 27.0 15.0 25.0 21.0 27.0 15.0
6:30 8:30 11:30 13:30 16:30 22:30
USER’S
2
(Tuesday)
Pre-set
25.0 20.0 27.0 15.0 25.0 20.0 27.0 15.0 25.0 21.0 27.0 15.0
6:30 8:30 11:30 13:30 16:30 22:30
USER’S
3
(Wednesday)
Pre-set
25.0 20.0 27.0 15.0 25.0 20.0 27.0 15.0 25.0 21.0 27.0 15.0
6:30 8:30 11:30 13:30 16:30 22:30
USER’S
4
(Thursday)
Pre-set
25.0 20.0 27.0 15.0 25.0 20.0 27.0 15.0 25.0 21.0 27.0 15.0
6:30 8:30 11:30 13:30 16:30 22:30
USER’S
5
(Friday)
Pre-set
25.0 20.0 27.0 15.0 25.0 20.0 27.0 15.0 25.0 21.0 27.0 15.0
6:30 8:30 11:30 13:30 16:30 22:30
USER’S
6
(Saturday)
Pre-set
25.0 20.0 27.0 20.0 25.0 20.0 27.0 20.0 25.0 21.0 27.0 15.0
7:30 9:30 11:30 13:30 16:30 22:30
USER’S
7
(Sunday)
Pre-set
25.0 20.0 27.0 20.0 25.0 20.0 27.0 20.0 25.0 21.0 27.0 15.0
7:30 9:30 11:30 13:30 16:30 22:30
USER’S
If the unit is to operate in 5/2 day mode, then only days 1 and 6 need be completed.
32°C
31°C
30°C
29°C
28°C
27°C
26°C
25°C
24°C
23°C
22°C
21°C
20°C
19°C
18°C
17°C
16°C
15°C
14°C
13°C
MIDNIGHT 3:00 6:00 9:00 12:00 15:00 18:00 21:00 MIDNIGHT
COOLING
HEATING
EVENT 1
EVENT 4
EVENT 5
EVENT 6
FACTORY
PRE-SET
PROGRAMME
5°C
DEAD
BAND
EVENT 3
EVENT 2
In the above diagram, event 2 has been moved to 15:30. Note that events 3 & 4 have also
been moved to that time, and that the following control temperature will be that of event 4.
It is possible to move events past midnight into the following day, when the day number will
blink in the display, see the display diagram in the notes on setting event times.
NOTES ON SETTING EVENT
TIMES
If, during the event checking and setting
procedure, no buttons are pressed for more than
two minutes then the HC75 will return to RUN
mode automatically. If this appears to have
occured, it is advisable to re-check the
programme to ensure that it is as required.
When setting event times and temperatures it is
not possible to set event times out of
chronological order.
Event 1 may be set at any time from 0:00 to
23:59 (but would normally be in the morning).
Event 2 may be set at any time between event
1 and 23 hours, 59 minutes after event 1.
Event 3 may be set at any time between event
2 and 23 hours, 59 minutes after event 1.
Event 4 may be set at any time between event
3 and 23 hours, 59 minutes after event 1,.... and
so on.
If the event time being set is moved past midnight
into the following day then the number of the
following day will blink.
When using the + button to adjust events 1 to 5
and the event time being adjusted becomes the
same as the following event time, then both are
changed simultaneously. This applies to all
subsequent event times reached and is
demonstrated in the lower diagram on the left.
When using the - button to adjust events 2 to 6
and the previous event time is reached the -
button ceases to respond.
The factory pre-set programme may be reinstated
by pressing the recessed RESET button. This
will however reinstate all the factory pre-set
conditions, so that the clock type, temperature
scale and optimum start period (if enabled) may
also have to be re-set.
Event 6 on day 6
set after
midnight.
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