Danfoss CP715 Si User manual

User Guide
Danfoss Heating
MAKING MODERN LIVING POSSIBLE
CP715Si
Electronic 2-Channel Common Timebase
Programmer for Heating and Hot Water

CP715SI
2
GB
CP715Si
Electronic 2-Channel Common Timebase
Programmer for Heating and Hot Water
For a large print version of these instructions
please call Marketing on 0845 121 7400.
Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other
printed material. All trademarks in this material are property of the respective companies.
Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
®
Certification Mark

Danfoss Heating 3
GB
Thank you for buying a Danfoss product GB

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Index
1.0 User Instructions
1.1 Your Programmer...........................................................................6
1.2 Preset Programmes.......................................................................6
1.3 Before you start ..............................................................................7
1.4 Choice of 24hr 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........................9
1.7.1 Programming the Heating in 5/2 Day Mode..................... 10
1.7.2 Programming the Heating in 7 Day Mode......................... 11
1.7.3 Programming the Heating in 24 Hour Mode.................... 12
1.8 Running your Programme....................................................... 14
2.0 Advanced
2.1 Temporary Override Buttons.................................................. 15
2.2 Holiday Programme................................................................... 16
2.3 Changing Clocks Forward and Backward .......................... 17
2.4 Service Interval Timer................................................................ 18
2.5 Making a Full Reset .................................................................... 19
2.6 Fault Check List............................................................................ 20
DAY/HOL
Central Heating
1HR override
Central Heating
MAN override
RESET
Central Heating
Mode SELECT
+1HR
MAN
+1HR
MAN
Hot Water
1HR override
Hot Water
MAN override
Hot Water
Mode SELECT

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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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1.0 User Instructions
1.1 Your Programmer
The CP715 Si 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 CP715 Si 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 9-14. First, follow the steps on
page 7-8 to set the correct time and date.
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
* Not applicable if unit set to 2 ON/OFFs per day by installer
**Not applicable if unit set to 24 hour mode by installer
See page 9 for explanations of different settings

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1.3 Before you start
Open the flap on the front of the clock. Press the RESET button using
a non-metallic object (e.g. pencil/matchstick) until you hear a click
and the 2 red lights on the front of the unit flash once.
This will stop and restart the electronics,
without losing the factory set time and
date settings.
To fully reset the unit see page 19.
1.4 Choice of 24hr or AM/PM display
Press and hold DAY/HOL 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.
DAY/HOL
DAY/HOL
DAY/HOL
DAY/HOL

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Press DAY/HOL to display day and
month. Use the +or - buttons to set the
correct month (Jan = 1, Feb = 2 etc.).
Press DAY/HOL to display day and
month. Use the +or - buttons to set day
of month.
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 once 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.
7

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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 10-11)
• 7 day - different settings for each day of the week.
(page 11-12)
• 24 hour - one set of programmes for the whole week.
(page 12-13)
See INSTALLER SETTING tick box on inside flap label to ascertain
which mode your unit is set.
Please Note
The unit must be programmed in sequence. ON/OFF times cannot
be set out of sequence.
If you want to leave a preset time as it is, simply press NEXT to
move on to the next setting.
Your installer will have set your unit to programme either 2 or 3
ON/OFFs per day. If your clock has been installed to allow 3 ON/
OFFs and 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.
INSTALLER SETTING
24 Hour
5+2 Day
7 Day

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1. Press PROG once until SET ON TIME
appears at the top of the display
and MOTUWETHFR appears at the
bottom of the display.
Use the + or - buttons to set the
time you would like your heating/
hot water to first come on in the
morning (Event 1).
2. Press NEXT ON/OFF once only.
Use the + or - buttons to set the
time you want your heating/hot
water to go off (Event 2).
To move to the next setting, i.e.
when you would like your heating/
hot water to come on again (Event
3) press the NEXT ON/OFF button
again.
3. Continue programming the
heating/hot water ON and OFF
times for weekday Events 4, 5 and 6
as in Step 2.
4. Press the DAY/HOL button once
and SASU will appear at the bottom
of the display.
DAY/HOL
DAY/HOL
DAY/HOL
1.7.1 Programming the heating and hot water in
5/2 day mode
DAY/HOL

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5. To set the times required for SA
and SU repeat steps 1-3 or if the
same settings are required press
COPY.
6. Press the PROG button to return
the unit to RUN mode (time
appears and colon in the display
begins to flash).
7. Proceed to page 14.
Please Note
If this setting is made on a weekend day SASU will show in
place of MOTUWETHFR.
DAY/HOL
DAY/HOL
1. Press PROG once until SET ON TIME
appears at the top of the display.
Note the current day is displayed.
Press the DAY/HOL button until the
required day is displayed.
2. Use the + or - buttons to set the time
you want your heating/hot water to
first come on in the morning (Event
1).
3. Press NEXT ON/OFF to move to
Event 2.
DAY/HOL
DAY/HOL
1.7.2 Programming the heating and hot water
in 7 day mode

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DAY/HOL
DAY/HOL
4. Continue programming the
heating/hot water ON and OFF
times in this way by using the +
or - buttons to set the time you
want and pressing the NEXT ON/
OFF button to move to the next
setting.
5. Press DAY/HOL button once only.
The next day will appear at the
bottom of the display.
6. Repeat steps 2-6 to set the
required programme for the day.
7. Press the PROG button to return
the unit to RUN mode (time
appears and the colon in the
display begins to flash).
8. Proceed to page 14.
DAY/HOL
1. Press PROG once until SET ON
TIME appears at the top of the
display.
Use the + or - buttons to set the
time you want your heating/
hot water to first come on in the
morning (Event 1).
2. Press NEXT ON/OFF to move to
Event 2.
DAY/HOL
DAY/HOL
1.7.3 Programming the heating and hot water in
24 hour mode

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Continue programming the
heating/hot water ON and OFF
times by pressing:
a) NEXT ON/OFF button to move to
the next setting,
b) + or - buttons to amend the
time.
3. Press the PROG button twice to
return the unit to RUN mode (time
appears and the colon in the display
begins to flash).
4. Proceed to page 14.
GB
DAY/HOL
DAY/HOL

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To run the central heating programme:
press the SELECT button next to the radiator symbol until AUTO
is displayed in the LCD.
To run the hot water programme:
press the SELECT button next to the tap symbol until AUTO is
displayed in the LCD.
As you press the SELECT button the
display will change between ON, OFF,
ALLDAY and AUTO.
• AUTO = the heating/hot water will come on and go off at the
programmed times.
• ON = the heating/hot water will remain on constantly.
• OFF = the heating/hot water will not come on.
• ALLDAY = the clock will turn the heating/hot water on at
the first programmed ON and will leave it on until your last
programmed OFF.
Select the option you require depending on your circumstances,
time of year, etc.
OFF
ON
ALLDAY
1.8 Running Your Programme

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The grey buttons next to the radiator symbol are the
Heating override buttons.
The grey buttons next to the tap symbol are the Hot
Water override buttons.
+1HR Pressing this button when either system is in AUTO
or ALLDAY mode will cause the heating/hot water to
remain on for an extra hour. If it is pressed while the
programme is OFF the heating/hot water will come on
immediately for 1 hour then go off again. +1HR will be
shown in the display.
MAN Pressing this button when either system is in AUTO or
ALLDAY mode will cause the heating/hot water to go
OFF until the next programmed ON, or vice versa. MAN
will be shown in the display.
Sometimes you may need to change the way you use your heating
temporarily, i.e. due to unusually cold weather. The CP715 Si has two
convenient overrides which can be selected without affecting the set
programme.
+1HR
MAN
+1HR
MAN
+1HR
MAN
+1HR
MAN
2.0 Advanced Settings
2.1 Temporary Override Buttons

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To automatically bring the heating back on when returning from
holiday the CP715-Si has a built in holiday feature.
Follow the steps below to set the date that the heating system needs
to come back on.
1. Press DAY/HOL
2. Use the +or -buttons to select the
year.
3. Press DAY/HOL, then use the +and
-buttons to select the month.
4. Press DAY/HOL again, then use the
+and -buttons to select the day in
month.
5. Press DAY/HOL to turn heating off
and enter holiday mode.
To cancel holiday mode press DAY/HOL.
DAY/HOL
DAY/HOL
2.2 Holiday Programme

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This is handled automatically. Should the installer have turned off
Automatic Time Change then follow the instructions below.
Open the flap on the front of the unit to reveal the programming
buttons.
To change from Summer to Winter
(clocks back) -
• press and hold - button
To change from Winter to Summer
(clocks forward) -
• press and hold + button
!Take care when making this change for the first time.
If it is made in the wrong direction the unit will have to be reset
and any user-settings re-entered.
(See pages 7-8 on how to reset the unit and how to set the
date, time and day).
2.3 Changing Clocks Forward and Backward

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• If the property is owned by a landlord he may, for gas safety
reasons, have instructed the installer to set the service interval
timer.
• If set, 28 days prior to the boiler
service due date, a momentary
visual and audible warning will
remind you to have the boiler
serviced in the next 28 days. This will
be repeated each day at noon.
• If the boiler is not serviced within 28 days the daily audible
warning will sound for 1 minute at the beginning of each hour
and must be cancelled each day by pressing any button on the
unit.
• In addition, all overrides and programming buttons will be
disabled and the heating and hot water will operate for a set
portion of each programmed hour.
• The installer will cancel or reset the service interval timer as part
of the boiler service.
• This is a gas safety feature that can only be accessed by an
installer.
• When the service interval timer is set the service due date can
be viewed in RUN mode by pressing and holding the COPY
button.
2.4 Service Interval Timer

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If it is necessary to fully reset the unit, excluding the date and time,
follow the instructions below.
1. Press and hold the +1HR and MAN buttons on the left hand side
of the product.
2. Press the RESET button and hold for 3 seconds.
3. Release the RESET button. The display will change to show the
current time.
4. Finally, release both the +1HR and MAN buttons.
The unit is now fully reset and must be re-programmed, see pages
10-14.
+1HR
MAN
+1HR
MAN
Example
2.5 Making a Full Reset

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2.6 Fault Check List
No Hot Water
              
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"""""" $ "    
       # %&'! ""  "    %&'
"""""" $ "  
   ! """""  "    
"""""" $ " (     ) 
*    + ""   ! "  "    
"""""" $ " (     ) 
      " ,  !" 
"""""" $ " (     -& 
   . /
0#     1         2 
No Heating
              
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"""""" $ "   
       ! ""  " *   3&'
"""""" $ "  
   ! """""  "       +
"""""" $ " 4     ) 
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   . /
0#      1         2 
CP715
CP715