DEVI devireg 550 User manual

User’s Guide - Devireg™ 550 Thermostat
INT

About the thermostat
Set weekday and clock
Set temperature
Set periods with lowering of temperature
Pages 2 - 7
Pages 8 - 9
Pages 10 - 13
Pages 14 - 16
User’s Guide - Devireg™ 550 Thermostat

1
Congratulations!
You have purchased a Devireg™ 550 thermostat,
which forms an integral part of your DEVI™
system.
DEVI has developed the Devireg 550 in order to
make your oor heating system and the heating
of your home as economical and environmen-
tally friendly as possible.
Devireg™ 550 works dynamically with both the
room and oor temperature in order to ensure
optimum eciency, giving you the highest pos-
sible comfort in the most economical way.
Once the Devireg 550 has been installed for a
few days, it will fully optimise the use of the hea-
ting system. it will then continue to learn from
the room, thus constantly improving its perfor-
mance, as well as your comfort and economy.
We wish you many years of comfort with your
new DEVI™ system.
Warning
Do not cover the thermostat, for intance by
hanging towels etc. directly in front of it.
Please note, it is not advisable to leave certain
insulative objects on the same spot as this can
cause ‘hot spots’ on your oor.
devireg™550
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PM
Your DEVI under floor heating system

2
About the thermostat
User’s Guide - Devireg™550 Thermostat
Introduction
Devireg™ 550 is an adaptive temperature control-
ler, specially designed for oor heating systems.
It can, however, also be used for other heating
systems (e.g. with power heating units).
e Devireg™ 550 will measure the radiant com-
fort from the oor combined with the comfort
from the air temperature in the room to oset
the outside weather condition. is means that
as soon as you have set your Devireg™ 550 at
your desired comfort temperature. Devireg 550
will then automatically adjust the heating to
meet your comfort levels, regardless of changing
weather conditions.
Devireg™ 550 is also capable of detecting a sud-
den temperature drop in the room. Instead of
switching the heating on to immediately com-
pensate, the Devireg™ 550 uses the information
stored and then checks if this sudden drop of
temperature may be caused by for instance a
window that has been opened for 10 minutes.
Even the programming of economy tempera-
tures (i.e. lowering of temperature during the
night and when you are at work) is very simple.
You do not have to calculate how much ear-
lier the heating should start in order to reach a
specic temperature at a specic time. Just tell
the Devireg™ 550 when you want the comfort
temperature, and the Devireg™ 550 will take care
of the rest. By identifying the rate of heat loss
from the room, the Devireg™ 550 knows when
to start heating in order to achieve the selected
temperature at exactly the right time.
Devireg™ 550 - the thermostat that thinks!

3
About the thermostat
Symbol for timer On
Symbol for frost protection
Numerical display
for time, temperature,
text, etc.
Weekdays
Flashing point for actual time
Symbol for setting of clock Economy set back
Symbol for degrees
Child lock on (alt. )
Symbol indicating that the room
temperature is below the required
temperature (set-point).
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Button

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User’s Guide - Devireg™550 Thermostat
Thermostat button
You can use the button on the thermostat in
three dierent ways:
- You can turn it.
- You can press it.
- You can press and hold it for a certain number
of seconds.
x sec.

5
About the thermostat
Switch thermostat on/off
Before you can switch the thermostat o, the
timer function (indicated by timer symbol on
the thermostat display) must be deactivated.
Press the button to switch the timer function o.
To switch the thermostat o, turn the button
anticlockwise to lower the temperature below
+5°C (1 by scale). OFF will then be shown on
the display.
To switch the thermostat on again, raise the tem-
perature above +5°C (1 by scale). is is done by
turning the button clockwise .
If the Devireg™ 550 only uses a
oor sensor, the display will not show
the wanted temperature (5° to 35°), but
a scale from 1 to 10 (in steps of about 5°).
OFF
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User’s Guide - Devireg™550 Thermostat
Switch timer function on/off
e timer function is used for automatic switch-
ing between periods with normal (comfort) tem-
perature and periods with lowering of tempera-
ture (e.g. at night). When switched on, a timer
symbol (clock) is shown at the top of display.
- To switch the timer function o, press button.
- To switch the timer function on, press button
again.
Read more about how to set periods with lower-
ing of temperature (e.g. at night) on page 12.
Clock ring
e markings on the clock ring indicates
periods with normal desired temperature
and periods with lowering of the temperature
(e.g. at night). e ashing point indicates
the actual time of day (every half hour).
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7
About the thermostat
Network set-up with a controlling
master thermostat
If more Devireg 550™ thermostats have been
installed in the house, the electrician may have
chosen to link them together in a network with
one thermostat serving as master unit control-
ling various settings on the other thermostats in
the network (also called slaves). In that case the
following settings are controlled by the thermo-
stat that has been congured as master:
• Time
• Weekday
• Economy set-back
If the thermostats are linked in a network, any
changes of time, weekday and/or periods with
lowering of temperature must be made on the
thermostat congured as master. e changes
will then take eect on all slave thermostats.
Please contact the electrician to nd out if the
thermostats in the house are linked in a network,
and in case they are, which thermostat has been
congured as Master.

User’s Guide - Devireg™550 Thermostat
8
Set weekday and clock
Set weekday
1Hold the button for 3 seconds.
en the symbol for setting of the clock and
the number of the weekday will be shown on
the display.
2Turn the button to the right or le, until
the time passes 0:00. Every time the time
passes 0:00, the weekday number will go 1
up/down depending on which way you turn
the button. e number you choose will be
the weekday of the current day of the week.
e numbers 1-7 do not correspond to any
specic days, so you can choose which day of
the week should be number 1, etc.
Example: If today is Tuesday and you select
2 on the display, Tuesday will be weekday
number 2.
3 Set the clock correctly by turning the button
to the right or le.
4Press the button to save the settings.
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8:45
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0:00
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3 sec.

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Set weekday and clock
Set the clock
e clock is not factory set.
1Hold the button for 3 seconds. en the
symbol for setting of clock will be shown on
the display.
2 Set the clock by turning the button to the
right or le.
3Press the button once and release to save the
setting
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3 sec.

User’s Guide - Devireg™550 Thermostat
10
Set temperature
Constant temperature
By switching o the timer function you can set
the thermostat so it will maintain a constant
temperature (see how to switch timer on/o on
page 6). e setting with constant temperature
can be used when 24 hour heating is required or
for constantly lowering the temperature when
going on holiday. An unbroken clock ring indi-
cates constant temperature.
Fixed periods with lowering of temperature
By using of the built-in timer you can set up
xed periods for each day of the week where the
temperature is lowered (e.g. at night and when
you are at work). is means automatic switch-
ing between economy and comfort temperature.
Read more about how to set periods with lower-
ing of temperature on page 12.
When the timer is on, it is indicated by a timer
symbol in the form of a clock (and a clock ring if
periods with lowering of temperature have been
selected).
e display shows required temperature. In
periods with lowering of temperature, however,
the temperature will be lowered according to the
set-back level (e.g. 5°C) that has been dened in
connection with installation of the thermostat.
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Set temperature
Switch timer function on/off
To switch the timer function on/o, press the
button. A timer symbol on the display indicates
that the timer function is on.
Bathroom and en-suite applications
With all bathroom and ensuite applications, the
thermostat will be located outside the room
Because the thermostat is not located in the
room it is controlling, it will measure the oor
temperature via a oor sensor only, therefore
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the display shows temperature on a scale of 1-10
rather than degrees C. Recommended settings in
this situation are 5-6, which is 25-30 degrees C.
Raise temperature
Turn the button clockwise to raise the tempe-
rature.
Lower temperature
Turn the button anticlockwise to lower the
temperature.
Frost protection
To obtain frost protection, lower the tempera-
ture to a minimum of +5°C. en a frost symbol
will appear on the display.

User’s Guide - Devireg™550 Thermostat
12
Setting minimum floor temperature
(is only applies if the thermostat is congured
to use a room and oor sensor).
Press and hold for 9 seconds. “MFt”
(Minimum Floor Temperature) appears
on the display.
Set the minimum oor temperature.
Press to conrm. e display returns to
normal.
e oor temperature is kept above the set lower
limit.
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9 seconds

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Set temperature
Operating the child lock
Setting minimum floor temperature and Child lock
Switching on the child lock
1. Press and hold the button.
2. While holding the button turn counter-clock-
wise, until “COdE” appears on the display.
3. Turn clockwise to select “0033”.
4. Press to conrm.
or appears on the display.
e child lock is on. e thermostat cannot be
operated using the button except to switch o
the child lock.
Switching off the child lock
1. Press and hold the button.
2. While holding the button turn counter-clock-
wise, until “COdE” appears on the display.
3. Turn clockwise to select “0033”.
4. Press to conrm.
or appears on the display.
e child lock is o. e thermostat can be
operated again.
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User’s Guide - Devireg™550 Thermostat
14
Set periods with lowering of temperature (timer)
e timer is not factory set.
1 Hold the button for 6 seconds.
en the symbol for timer programming and
the weekday numbers are shown.
2 Select the weekday that you want to begin
with by turning the button until the wanted
weekday is shown. You can read more about
setting weekday on page 8.
3 Press the button once to choose weekday.
Now you are ready to begin dening periods.
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15
Set periods with lowering of temperature
4 Turn the button clockwise to indicate the rst
time that normal temperatures are required
(comfort), e.g. 06:00. e clock uses 30-mi-
nutes intervals.
5 Press the button.
6 Turn the button clockwise to indicate the
time when the temperature should be lowe-
red again. Black segments should then be
displayed, to indicate the desired settings.
e number of degrees e.g -5°C, is the
temperature the thermostat is lowered accor-
ding to, during an economy period. is will
have already been set during conguration.
7 Press the button.
8 Turn clockwise to the period when normal
temperature is required again, e.g. 15:30.
Clear segments should now be displayed to
indicate the economy period set.
9 Press the button.
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User’s Guide - Devireg™550 Thermostat
10 Turn clockwise once again to the next time
that you require a period with lowering tem-
perature to begin., e.g. 22:30.
11 Press the button.
12 Turn forward to make settings for the fol-
lowing weekday, and continue until you have
made period settings for all seven weekdays.
Every time the clock passes midnight
(00.00), it changes over to the next weekday.
13 Finally, hold the button for 3 seconds to
save your settings and nish. e display will
automatically return to normal display.
With Devireg™ 550 you only have to pro-
gramme the time when you want comfort
temperature and the time you want economy
temperature. e thermostat will do the rest. You
do not have to calculate when the heating should
start; Devireg™ 550 will do this for you.
Please note: If at any point a mistake is made,
rotate the dial anticlockwise to the rst segment
and press the button to clear the markers.
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17
Error messages
Error messages
Devireg™ 550 has a built-in system that constant-
ly checks the heating system, the thermostat it-
self and a possible network for any malfunctions.
If an error occurs, the display will ash together
with a code for the detected fault, which will be
shown as a number from 1 to 7.
No Error What to do?
2Congured as Master, but another
Master unit detected.
Call an electrician (Only one unit may be congured
as a Master).
3Congured as a Slave, but cannot nd
any Master unit.
Call an electrician (One unit must be congured as
Master).
4e thermostat is switched o because
of overheating.
Call an electrician (Let the thermostat cool for a pe-
riod. en enter basic set-up to leave error mode).
5Sensor fault. Floor sensor short-circuit. Call an electrician (Floor sensor must be changed).
6Sensor fault. Floor sensor open circuit. Call an electrician (Floor sensor must be changed).
7Clock is not set. Set the clock.
A fault on the oor sensor/sensor cable or
thermostat overheating will result in the heating
being switched o.

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User’s Guide - Devireg™550 Thermostat
Weekday 1 has been set to:
e temperature will be lowered the fol-
lowing number of degrees at night:
e thermostats in the house are linked
together in a network with one thermostat
serving as master (Yes/No):
If the thermostats have been set up in a
network, the following thermostat has
been dened as master thermostat:
Your notes