Introduction
This programmer can automatically switch your
central heating or hot water ON and OFF up to 3 times
a day, at whatever times you choose. Timekeeping is
maintained through power interruptions by a non-
replaceable battery designed to last for the lifetime
of the programmer. The clock is automatically put
forward 1 hour at 1:00am on the last Sunday of March
and back 1 hour at 2:00am on the last Sunday of
October. The clock is factory pre-set to UK time and
date, but you can alter the time setting if you wish.
During installation, the installer selects 24 hour, or
5 day/2day, or 7 day programming and 2 or 3 on/off
periods per day, via a 4 position DIP switch on the
back of the unit (see installation instructions).
IMPORTANT: These settings should only be
changed by a qualified person. Contact your
installer.
IMPORTANT: This programmer is not suitable
for the switching of devices greater than 2 Amp
rated per channel. (e.g. Not suitable for use as an
immersion timer)
Configuration
When setting time, date or changing programme
times the first screen displayed indicates the
configuration as set up by the installer. (See ‘Setting
The Time section)
Configuration
Display
2 ON/OFF Pumped System
2PU
3 ON/OFF Pumped System
3PU
Times for Central Heating and How Water can be
independently set.
The 24 hour, or 5 day/2day, or 7 day programming
option as set up by the installer can also be verified
at this stage by how the Monday to Sunday indicators
are displayed.
Programming
Option
Mon to Sun Indicators
flash
7 DAY
Mon to Sun individually
shown
5/2 DAY
Mon to Fri together then
Sat & Sun together
24 HOUR
Mon to Sun together shown
Now press any button to move to Setting the Time
and Day.
Built In Programme
For convenience, the programmer has a built in
programme which will be satisfactory for many
people, but which can be changed very easily (see
section CHANGING PROGRAMME TIMES). Once the
unit is powered up this built in programme will run.
If the user changes from the built in programme and
wishes to return to it, then pressing the reset button
with a non metallic pointed tool will return the unit
to the built in / default programme.
Factory Programme Settings
2Pu
3Pu
Mon-Fri
Sat-Sun
1st ON
1st ON
6:00am
7:00am
1st OFF
1st OFF
8:30am
9:00am
-
2nd ON
12:00 noon
12:00 noon
-
2nd OFF
12:00 noon
12:00 noon
2nd ON
3rd ON
4:30pm
4:30pm
2nd OFF
3rd OFF
10:30pm
11:30pm
If the unit is installed as a 24 hour programmer the
built in programme will be the same for each day (i.e.
Sat-Sun be same as Mon-Fri above).
Selecting Operating Mode
ON
Central Heating and Hot Water is ON
continuously
AUTO
Central Heating and Hot Water will be
switched ON or OFF as programmed
ALL
DAY
Central Heating and Hot Water will
be switched ON only once each day
between the first ON time and last OFF
time
OFF
Central Heating and Hot Water is OFF
continuously
• Press the
SET
button once. The configuration
setting will appear on the screen.
• Press the
SET
button again. The clock icon [1] on
the screen will flash.
• Press the
+/-
buttons to adjust the time. Time will
change quicker if pressed continually.
• Press
SET
once to move on to setting the DATE or
press multiple times to return to RUN mode.
Setting The Time
• Press the
SET
button until the Y:XX icon (year)
appears and the D (DATE) icon [2] flashes.
• Press the
+/-
button to set the year.
• Press
NEXT
button. M:XX appears (month).
• Press
+/-
button to set month.
• Press
NEXT
button. D:XX appears (Day).
• Press
+/-
button to set day.
Setting The Date
Changing Central Heating Times
The built in programmes can easily be changed to
better suit your lifestyle.
• Press
SET
button until radiator icon [3] flashes in
the display and 1 ON [4] appears. This indicates
the time shown on the display is the first ON time.
• By pressing the
+/-
buttons you can alter the ON
time to the time you want.
• Press
NEXT
button, display will now show 1 OFF
[4].
• By pressing the
+/-
buttons you can alter the OFF
time to the time you want.
• Press
NEXT
button to access remaining ON/OFF
periods and alter in same manner as above.
• To return to RUN mode, press the
SET
button until
the display indicates
RUN
on the display
NOTE:
Programming is in 10 minute segments.
CH1 MODE
HW MODE
Choice PR3n - 3 Channel Programmer
User Instructions
Fit & forget...
[1] [2]
[3]
[4]
[6]
[5]
If the unit is installed as a 7 day programmer, the
initial programme displayed will be for Monday.
You can go to any date of the week by pressing the
DAY
button repeatedly.
The ON/OFF times can be changed for each day
as described above in the section “CHANGING
PROGRAMME TIMES”.
If you press the
COPY
button, the current programme
will be copied onto the next day.
NOTE: it is not possible to copy Sunday to Monday.
If the unit is installed as a 5 day/2 day programmer,
the initial programme displayed will be for Monday
to Friday.
Pressing the
DAY
button will take you to the
programme for Saturday and Sunday.
The ON/OFF times can be changed for each day
group as described above in the section “CHANGING
PROGRAMME TIMES”.
If you press
COPY
button, the current programme
will be copied onto the next day group.
Press
SET
button until tap icon [3] flashes in the
display and 1 ON [4] appears. This indicates the time
shown on the display is the first ON time and proceed
in same manner as ‘To change the Central Heating
Times’ above.
NOTE: Every time the reset is pressed, the time
and date must be set again.
See the sections
‘Setting The Time & Setting The Date’
You can review or edit the date you have set just
by pressing
NEXT
button again and repeating the
sequence above. To confirm the date and move on to
PROGRAM mode press
SET
button once or press
SET
button multiple times to return to RUN mode.
CH2 MODE
Changing Hot Water Times
7 Day Programmer Option
5/2 Day Programmer Option
