Danfoss TP75M User manual

1
SETTING THE CLOCK
AftertherecessedRESETbutton
has been pressed the display
appearsasshown,withthecolon
blinking, and all the factory pre-
set conditions will be present.
To set the clock to the correct
time,pressandreleasethebutton
marked PROG. The digits blink.
Press the DAY button (the digits
stop blinking) until the correct
day number is shown. (1 =
Monday).
Press and release the + or -buttons to change the time by one
minute, or press and hold down to change the time in ten minute
steps.
When the time is correct press PROG to start the clock and
continue setting sequence.
SETTING THE OSC PERIOD (IF ENABLED)
This display will only appear if
the OSC function has been
enabled.
Use the + or - button to select an
OSCperiod.Thechoicesare0:30
(30 minutes), 1:00 (one hour),
1:30, and 2:00.
The recommended initial setting is 0:30, for more details see the
post-commissioning notes in the Installation & Commissioning
Guide.
If the OSC period is set to 0:00, the function is disabled.
When set as required press PROG to continue.
SETTING THE EVENT TIMES & TEMPERATURES
The installer will have configured
the TP75M to run in 7 day mode or
5/2daymodebymeansofaswitch
on the back of the unit.
The first event (time and
temperature)isdisplayed,together
with the day (7 day mode) or days
(5/2 day mode) when it is active.
Note that the day number(s)
displayed will reflect the current
day.
To step through the six available
eventspressandreleasetheNEXT
button.
Whilst each event is on display, it
may be altered as required.
continued/....
Mains Voltage Operated
Electronic Programmable Room Thermostats
TP75M with integral sensor.
TP75MA with remote sensor.
SETTING INSTRUCTIONS
+1 HR
+2 HR
+3 HR
+1 HR
+2 HR
+3 HR
+1 HR
+2 HR
+3 HR
Time
Day
+1 HR
+2 HR
+3 HR
Control temp.
Event No.
7 day mode
Control temp.
Days
Time
+1 HR
+2 HR
+3 HR
Event No.
5/2 day mode
Flap lowered
..../continued
Press and hold down the +or - buttons to change the event time in
ten minute steps. Press and release to change by one minute.
Press and release the s button to
raise the control temperature by
0·5°C(1°F),orpressandreleasethe
t button to lower the control
temperature by 0·5°C. Press and
hold down these buttons to make
larger changes to the control
temperature.
In addition to being able to
programme a temperature, it is also
possible to programme an OFF
simplybypressing thet buttonuntil
the symbol 'OF' appears on the
display.
Caution: If Off is selected, frost
protection is not provided.
When all events for the day(s) on display are as required press DAY
to show the following day's events.
The display will appear similar to one of the diagrams on the right,
depending on whether the TP75M has been set up for 7 day or 5/2
day mode.
Use the +, -, s , t, NEXT buttons to alter the events as required,
OR
If the previous day's programme is to be repeated, press COPY to
repeat those events with just one button press.
(Pressing COPY when in 5/2 day
mode will repeat the events
programmed for days 1 to 5 at the
weekend).
Use DAY and NEXT to check all the
events programmed, using the +, -,
s , t,NEXT buttons to make
alterations to each event as
necessary.
When all the events for every day are as required, press PROG to
return to RUN mode, with the colon blinking.
Theheatingsystemwillnowbecontrolledtoprovidethetemperatures
programmed.
Refer to the USER's GUIDE for details of the manual over-rides
available during day to day operation.
+1 HR
+2 HR
+3 HR
+1 HR
+2 HR
+3 HR
7 day mode
5/2 day mode
+1 HR
+2 HR
+3 HR

2
FACTORY PRE-SET PROGRAMME
The TP75M range of programmable room thermostats are provided with a factory pre-set
programme of switching times and temperatures, so that, once the clock has been set and the
TP75MreturnedtotheRUNmode,theheatingsystemwill be controlled at the times and to the
temperatures of the pre-set programme, as shown in the following table and indicated by the
fine line in the diagram below.
The instructions on the previous page show how to change the times and temperatures to the
users requirements.
The table should be used to record the users programme. If the TP75M has been configured
for 5/2 day control only days 1 and 6 need be recorded.
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Intheabovediagramtheheavylineindicateswhatatypicaluser-setprogrammemightbe.Note
that event 2 has been moved to 14:00, that events 3 & 4 have also been moved to that time,
and that the following control temperature will be that of event 4.
Itispossibletomoveeventspastmidnightintothefollowingday,whenthedaynumberwillblink
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 TP75M will return
toRUNmodeautomatically.Ifthisappearsto
have occurred, it is advisable to re-check the
programme to ensure that it is as required.
Whensettingeventtimesandtemperaturesit
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 (butwouldnormallybeinthemorning).
Event2maybesetatanytimebetweenevent
1 and 23 hours, 59 minutes after event 1.
Event3maybesetatanytimebetweenevent
2 and 23 hours, 59 minutes after event 1.
Event4maybesetatanytimebetweenevent
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
5andtheeventtimebeingadjustedbecomes
the same as the following event time, then
botharechangedsimultaneously.Thisapplies
to all subsequent event times reached and is
demonstrated in the 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(ifenabled)mayalsohavetobere-set.

3
SELECTING THE CLOCK TYPE (12hr or 24hr)
The factory pre-set clock has a 24 hour display. If a 12 hour display
withAM/PMindicationispreferredthenpressandholddowntheNEXT
and DAY buttons until the display changes. Repeat to return to a 24
hour display.
SELECTING THE TEMPERATURE DISPLAY
(°C or °F)
The factory pre-set temperature display is °C. If a °F display is
preferred then press and hold down the DAY and COPY buttons until
the display changes. Repeat to return to a °C display.
+ 1 HR
+ 2 HR
+ 3 HR + 1 HR
+ 2 HR
+ 3 HR Fig. 3. Temperature range
changed to Fahrenheit.
+ 1 HR
+ 2 HR
+ 3 HR Fig. 2. Clock set to 12 hour
display.
Temperature
override
indicators
Indicates
temperature
display
Extended
temperature
indicators
+ 1 HR
+ 2 HR
+ 3 HR
Programmed
temperature indicator
Boiler ON
indicator
Holiday mode
selected
Programme
type
indicator Clock time,
digital
thermometer,
or number of
holiday days
Day of week
Flap lowered
USER'S GUIDE
IMPORTANT
- Oninitialpowerup,andafterperiodsofpowerdisruptionwhichmay
have caused memory loss, press the RESET button under the flap
prior to carrying out any programming.
- The battery back-up in this unit is provided by a rechargeable cell
which will take up to ten days from initial power before it is fully
charged.Duringthisperiodbatteryback up cannot be guaranteed.
How to:
Select a 12 hour or a 24 hour clock display.
Select a °C or a °F temperature display.
Change between Winter Time and Summer Time at the press of a
button.
Convert the TP75M to act as a thermostat, controlling at the selected
temperature continuously.
Use the TP75M as a frost thermostat.
Use the holiday function.
Override the programmed temperature.
Extend an existing temperature for 1, 2 or 3 hours.
HEATING SYSTEM PERFORMANCE.
The TP75M includes one in-built and two optional energy saving and
comfort enhancement features that may have been enabled by your
installer. All will affect the way in which the heating system operates,
and this will be different from that provided by conventional time
controls and room thermostats.
Thein-builtfeatureisanintelligentelectronicanticipatorwhichmeasures
the rate of temperature rise then switches the boiler off before the set
temperature is reached. However the required comfort temperature
will be reached due to the residual heat in the system after the boiler
hasshutdown.Thisfeatureisonlyactivatedwhentheroomtemperature
is 2°C or more lower than the set temperature.
If the optional Optimum Start Control feature has been enabled,
(indicated by the display showing typically 0:30 and OP after the
secondpressofthePROGbuttonfromtheRUNmode),thentheboiler
will fire some time before the programmed event 1 time to provide the
event 1 comfort temperature by that time.
Ifthe optionalChrono-proportionalfeaturehasbeenenabled,thenthe
boiler will fire at regular intervals to maintain radiator temperature and
so prevent the large swings in room temperature caused by radiators
alternating between very hot and cold. In mild weather and when the
systemisuptotemperaturetheboilermayfireonlyinshortburstswith
long periods of inactivity. This is not a fault, and will provide increased
comfort .
RUN MODE
WhilsttheTP75MisinRUNmode,i.e.controllingthespacetemperature
in accordance with the programme, the colon between the hours and
minutes digits blinks. The colon does not blink whilst the time and
programme are being set.
DISPLAY ELEMENTS
( Those that will appear whilst following these user's instructions).
Mains Voltage Operated
Electronic Programmable Room Thermostats
TP75M with integral sensor.
TP75MA with remote sensor.
Fig. 1. Display following a
RESET.(Colon blinking)

4
SETTING THE CLOCK
PressPROGtodisplaythetimeofday(thedisplayblinks).Press DAY
(the display stops blinking) to select today (1 = Monday, 6 = Saturday
etc.). Press and hold down the + or - button to change the time quickly
in ten minute steps, or press and release to change the time by one
minute.
When the day and time are correct, press and release PROG once to
start the clock and further press and release as necessary until the
colon starts blinking, (RUN mode.) The intermediate stages are
explained in the Setting Instructions.
WINTER TIME / SUMMER TIME CLOCK
When the clocks are changed from Summer Time to Winter Time (or
viceversa)thereisnoneedto altertheclockbyentering programming
mode (i.e. pressing the PROG button). Instead just press and hold
down the - button to change from Summer Time to Winter Time or the
+ button to change from Winter Time to Summer Time. The first time
this is done (after a RESET) the clock is set and can only be changed
by one hour as appropriate.
Ifamistakeismade,e.g.pressing the+buttoninthe autumnwhenthe
-buttonshouldhavebeenpressed,rectifytheproblembypressingthe
correctbuttonandthenre-settingtheclockbyonehourasappropriate.
(Refer to SETTING THE CLOCK above).
TIME OR TEMPERATURE DISPLAY
The default display in RUN mode shows the time of day. This may be
changed to display the actual temperature being sensed by pressing
both COPY and NEXT buttons together. Return to time display by
pressing them together again.
THERMOSTAT MODE
The TP75M may be converted to control at a constant, user selected,
temperature by pressing and holding down the s and tbuttons until
thedisplaychangestothatshowninFig.6withthedefaulttemperature
of 8°C (or 46°F), which may be changed as required using the s or
tbutton. The unit will stay in thermostat mode until the s and tare
pressed together again.
FROST THERMOSTAT MODE
Whilst in thermostat mode the
TP75M may be set to guard
against possible frost damage in
areaswheretheunit(oritsremote
sensor) is fitted. The control
temperature may be set to a
suitable level using the s or t
buttons. The unit will stay in frost
thermostat mode until the s and tare pressed together again.
+ 1 HR
+ 2 HR
+ 3 HR Fig. 4. Clock time ready for
changing.
(Colon steady, digits blinking).
+ 1 HR
+ 2 HR
+ 3 HR
Fig. 5.
TemperatureDisplay.
(Room temperature is below
the set temperature, so the
boiler is firing)
+ 1 HR
+ 2 HR
+ 3 HR
Fig. 6. Thermostat mode.
+ 1 HR
+ 2 HR
+ 3 HR Fig. 8 Temperature overridden -
boilerfiring.
+ 1 HR
+ 2 HR
+ 3 HR Fig. 9.
Allday selected - event 1
temperatureactive.
+ 1 HR
+ 2 HR
+ 3 HR Fig. 10.
Currenttemperatureextended
by 2 hours.
+ 1 HR
+ 2 HR
+ 3 HR Fig. 11.
Unit in 'sleep' mode.
Part No: 3661 Iss. 7 09/99
Fig. 7. Holiday mode.
+ 1 HR
+ 2 HR
+ 3 HR
HOLIDAY MODE
Whilst in thermostat mode pressing the DAY button will activate the
holiday mode. The display will change to that shown in Fig. 7 with a
numberindicatingthedefaultholidayperiodof00days. Usethes or
tbuttons to adjust the control temperature as required, and use the
+ or - buttons to set the number of days required, in the range 1-99
days. Ifthenumberofdaysisleftat00thentheunitwillreturntonormal
at event 1 the following day. When the selected number of days have
elapsed the unit will automatically return to normal, controlling
temperatures to the set programme.
Control may also be restored to normal by pressing the s and t
together.
USER OVERRIDES
Whilst the unit is operating normally in RUN mode the following
overrides are available:
TEMPERATURE SETTING OVERRIDE
Press s to increase or tto decrease the current set temperature.
Each press will change the temperature setting by 0.5°C (or 1°F). To
make larger changes press the button and hold it down.
/ OVERRIDE
With (profiled)selectedtemperaturecontrolwillfollowthe
programme.
With (allday)selectedthetemperaturesetforEvent1will
be maintained until Event 6. During this "ALLDAY" period the
programmed temperature may be overridden as above.
+1 HR/+2 HR/+3 HR OVERRIDE
Pressing this button once causes the current control temperature to
lastforanextrahour.Pressittwiceforanextra2hours,andthreetimes
for 3 hours. Pressing a fourth time will remove the override.
For example, a comfort temperature of 21°C programmed to end at
22:30 could be extended passed midnight. Alternatively, a morning
set-back temperature of 15°C could be extended to effectively cancel
a midday comfort setting.
POWER FAILURE
During a power failure the unit will go into 'sleep' mode. The time
andprogrammewillbemaintainedbyaninternalbatteryforfifteen
days. The display and control relay will not operate.
Danfosscanacceptnoresponsibilityforpossibleerrorsincatalogues,brochuresandotherprintedmaterial.Danfossreservestherighttoalteritsproducts
withoutnotice.This alsoappliesto productsalreadyon order providedthatsuch alterationscanbe madewithoutsubsequent changesbeing necessary
in specifications already agreed.
Danfoss Randall Ltd
Ampthill Road
Bedford, MK42 9ER
Tel: [phone] Fax: [phone]
Email: [email protected]
Website: www.danfoss-randall.co.uk