Danfoss FP975 User manual

FP975
7-Day Electronic Programmer
User Guide
Danfoss Heating
MAKING MODERN LIVING POSSIBLE

FP975
2
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Danfoss Heating 3
GB
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FP975
4
GB
User Instructions
FP975
7-Day Electronic Programmer
Index
1.0 User Instructions .......................................................................................6
1.1 Your Programmer............................................................................6
1.2 Preset Programmes........................................................................6
1.3 Before you start ...............................................................................7
1.4 Choice of 24 hour or AM/PM display .......................................7
1.5 Setting the date and time............................................................7
1.6 Accepting the Preset Programmes...........................................8
1.7 Before you change the preset programmes .........................8
1.7.1 Programming the heating in 5/2 day mode .........................9
1.7.2 Programming the heating in 7 day mode .......................... 11
1.7.3 Programming the hot water.................................................... 12
1.7.4 Running your programme........................................................ 13
2.0 Advanced Settings................................................................................. 14
2.1 Temporary override buttons.................................................... 14
2.2 Making a full reset ....................................................................... 15

Danfoss Heating 5
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What is a programmer?
... an explanation for householders.
Programmers allow you to set ‘On’ and ‘Off’ time periods. Some
models switch the central heating and domestic hot water on
and off at the same time, while others allow the domestic hot
water and heating to come on and go off at different times.
Set the ‘On’ and ‘Off’ time periods to suit your own lifestyle. On
some programmers you must also set whether you want the
heating and hot water to run continuously, run under the chosen
‘On’ and‘Off’ heating periods, or be permanently off.
The time on the programmer must be correct. Some types have
to be adjusted in spring and autumn at the changes between
Greenwich Mean Time and British Summer Time.
You may be able to temporarily adjust the heating programme,
for example, ‘Override’, ‘Advance’ or‘Boost’. These are explained in
the manufacturer’s instructions.
The heating will not work if the room thermostat has switched
the heating off. And, if you have a hot-water cylinder, the water
heating will not work if the cylinder thermostat detects that the
hot water has reached the correct temperature.
The text below has been edited and approved
by the Plain English Campaign, who has issued a
Crystal Mark to be displayed with it.

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The FP975 allows you to switch your heating and hot water on and
off at times that suit you.
You can programme up to 3 ON/OFF times per day for the heating and
the hot water and the two systems can be operated independently.
1.2 Preset Programmes
Your FP975 comes ready programmed with a set of operating times
which often suit most people.
If you want to change any of these settings, you can do so by
following the instructions on pages 8-13.
Event No. Hot Water
and Heating Mon-Fri Sat-Sun*
1 1st ON 6:30 7:30
2 1st OFF 8:30 10:00
3 2nd ON 12:00 12:00
4 2nd OFF 12:00 12:00
5 3rd ON 17:00 17:00
6 3rd OFF 22:30 22:30
* Available in 5/2 day mode only
1.0 User Instructions
1.1 Your Programmer
+1HR override
(HEATING)
MAN override
(HEATING)
Heating Mode
SELECT
+1HR override
( HOT WATER)
MAN override
(HOT WATER)
Hot Water
Mode SELECT

Danfoss Heating 7
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Open the flap on the front of the
clock. Press the RESET (R/S) button
using a non-metallic object (e.g.
pencil/matchstick) until you hear a
click and the red light on the front of
the unit flashes once.
This will cancel all manual overrides.
1.3 Before you start
1.4 Choice of 24hr or AM/PM display
Press and hold DAY and NEXT
ON/OFF for 1.5 seconds to toggle
between 24hr clock and AM/PM
display, as required.
1.5 Setting the Date and Time
These settings are made during
manufacture and only need
to be changed in the unlikely
event that the unit has lost the
settings.
Setting the Date
Press and hold PROG for 5
seconds to display year.
Use the +or -buttons to set the
correct year.
Press DAY to display day and
month. Use the +or - buttons to
set the correct month (Jan = 1,
Feb = 2 etc.).
Press DAY to display day and
month. Use the +or - buttons to
set day of month.

FP975
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7
Press PROG to display the time.
The words SET TIME will appear at
the top of the display and the time
will flash on and off.
Use the +or - buttons to set the
correct time (press and hold to
change in 10 min. increments).
Setting the Day
The day of the week is set
automatically.
1.6 Accepting the Preset Programmes
If you are happy to use the preset
programmes on page 6, you don’t
need to do anything else.
To accept the factory presets just
press the PROG button until the
time appears and the colon in the
display begins to flash.
Your unit is now in RUN mode
and will control your heating and
hot water according to the preset
programmes.
1.7 Before you Change the Preset Programmes
Your installer will have set your unit to operate in one of the following
modes:
• 5/2 day - one set of programmes for weekdays and another for
weekends (page 9-10).
• 7 day - different settings for each day of the week
(page 11-128).

Danfoss Heating 9
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Please Note
The unit must be programmed in sequence and ON/OFF times
cannot be set out of sequence.
If you want to leave a preset time as it is, simply press NEXT ON/
OFF to move on to the next setting.
Your timeswitch allows you to programme 3 ON and 3 OFF times
each day. If you do not wish to use one of the ON/OFF settings,
simply programme the ON time to be the same as the OFF time
and the setting will not operate.
If at any time you get confused and need to reset your timings
to the standard programme, press the RESET button to return
to the preset programmes (see page 7).
!
1.7.1 Programming the heating in 5/2 day mode
1. Press PROG until SET CH ON
TIME appears at the top of the
display and MOTUWETHFR
appears at the bottom of the
display.
Use the + and - buttons to set
the time you would like your
heating to first come on in the
morning (Event 1).
2. Press NEXT ON/OFF once only.
Use the + and - buttons to set
the time you want your heating
to go off (Event 2).
To move to the next setting,
i.e. when you would like your
heating to come on again
(Event 3) press the NEXT ON/
OFF button again.

FP975
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3. Continue programming the
central heating system ON and
OFF times for weekday events
4, 5 and 6 as in Step 2.
4. Press the DAY button once
and SASU will appear at the
bottom of the display.
Either press COPY to keep the
same settings for Saturday
and Sunday as you have
programmed for Monday to
Friday.
Alternatively, programme new
ON/OFF times by pressing the
NEXT ON/OFF button to move
to the next setting and using
the + and - buttons to set the
time you want.
5. Press the PROG button to
return the unit to RUN mode
(time appears and colon in the
display begins to flash).
6. Proceed to‘Programming the
hot water’ on page 12.