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
EV
ENT 1
EV
ENTS
2,
3 &
4
EV
ENT
5
EV
ENT
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.
DA
Y
S
PR
OGR
AMME
EVENTS
1
2
3
4
5
6
FORMAT
CLG
HTG
CLG
HTG
CLG
HTG
CLG
HTG
CLG
HTG
CLG
HTG
TIME
TIME
TIME
TIME
TIME
TIME
1
(M
o
nda
y
)
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
(Tue
s
d
a
y
)
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
(W
ed
n
e
sd
ay)
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
(Thurs
d
a
y
)
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
(F
ri
d
ay)
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
(S
a
tu
rd
a
y)
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
(S
unda
y
)
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
E
VENT 1
E
VENT 4
EVENT
5
EVENT
6
FACTORY
PRE-SET
PROGRAMME
5°C
DEAD
BAND
EVE
NT 3
EVE
NT 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 occurred, 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.
