Publication No. 5106228
5
User’s Instructions
How to set the Programmer
This section is relevant only if your programmer has
been enabled. Refer to 'Programmer not working' on
Page 7 if unsure.
Using the Powermax programmer, you can set your
Hot Water and/or Central Heating to come on for three
time periods per day, with different or common times
for Hot Water and Central Heating.
It does take time for the boiler to produce the required
temperatures, so set the programmer to switch on, for
example, 30 minutes earlier than you will require
Central Heating and around 20 minutes earlier than
that to allow the Hot Water store to heat up.
Other controls in your system (such as a room
thermostat) may affect the switching of your boiler. So
although the indicator shows that the central heating is
on, the boiler itself could be off.
(Ask your installer how they work).
Setting the Programmer for Built-in Times
The programmer already has built-in time periods,
which are shown below (represented as a 12 hour
clock).
Central Heating - Monday to Friday
ON1
OFF1
ON2
OFF2
ON3
OFF3
07.00
09.30
12.00
12.00
5.00
11.00
Domestic Hot Water - Monday to Friday
ON1
OFF1
ON2
OFF2
ON3
OFF3
06.30
09.30
12.00
12.30
4.40
11.00
Central Heating - Saturday and Sunday
ON1
OFF1
ON2
OFF2
ON3
OFF3
07.30
10.30
12.00
12.00
4.30
11.30
Domestic Hot Water - Saturday and Sunday
ON1
OFF1
ON2
OFF2
ON3
OFF3
07.00
10.30
12.00
1.00
4.00
11.30
These times can be used, by setting the correct time of
day as described in Section 2.0, Page 6.
To set up your own ON/OFF times, refer to Section 3.0,
Page 6.
If you wish to return to the built in time periods, after
changes have been made to them, firstly ensure the
programmer is in Normal Operation (Section 1.0, Page
6). Then press & hold down the
+
and
-
buttons
together, after 2 seconds or so, release the two
buttons and the built in periods will be active.
Using the HW and CH 'SELECT' Button
During normal operation, by pressing these buttons
you can select how you wish your system to work:
OFF
When selected, the boiler will stay
turned off.
TIMED
Allows the Central Heating and/or Hot
Water to run to the times you have set in
the programmer’s memory.
ONCE
Allows your Central Heating and/or Hot
Water to run once a day, from the first
ON time to the last OFF time.
ON
Will turn the Central Heating and/or Hot
Water on continuously 24 hours a day.
Using the 'ADVANCE' Button
The ADVANCE button allows you to go forward to the
next ON or OFF time for Central Heating only, when
timed
is selected. To advance the programme, simply
press the ADVANCE button and the Central Heating
neon will go OFF (if on) or ON (if off), press again to
return to original setting.
Programmer Memory Backup
If the electricity fails or is switched off, the display will
go blank, but the programmer will maintain the set
times and the clock for 12 hours. When the power
comes back on, you may have to reset the clock and
switch times.
Note:
During the time that the electricity is off, any
electrical items, e.g. Boiler, pumps, etc. will not
operate.
If the programmer battery fails, a replacement (Part
No. 5106294) is available. Always dispose of the old
battery in a safe manner.
