Danfoss RET M Operating instructions

RET M Electronic mains powered dial
setting thermostat with LCD display
User & Installation Instructions
®
Certification Mark

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Installation Instructions 3-9
User Instructions 10-14
Instructions d’installation 15-21
Instructions d’utilisateur 22-24
Anweisungen für Installati 25-31
Benutzeranweisen 32-34
Instrucciones de instalación 35-41
Instrucciones del usuario 42-44
Instruktions vejledning 45-51
Brugervejleding 52-54
Installatie handleiding 55-61
Instructiesevoor Gebruik 62-64
Ïäçãßåò åãêáôÜóôáóçò 65-71
Ïäçãßåò ÷ñÞóçò 72-74
Instrukcja instalacji 75-81
Instrukcja Użytkownika 82-84
Montavimo instrukcijos 85-91
Informacija Vartotojui 92-94
Istruzioni per l’uso 95-100
Istruzioni per l’utente 101-103
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Installation Instructions
Features RET M,RET M-LS,RET M-NSB
Temperature Range 5 - 30°C
Setting knob and LCD display l
Chrono-proportional or On/Off control l
Heat or cool operation
incl compressor delay timer l(1)
Selectable °F or °C scaling l
Output relay contact rating 10-264 Vac, 50/60 Hz, 3 (1) A
Switching action 1 SPDT
Power supply 230 Vac ± 15%,50/60 Hz
Maximum ambient temp 45°C
Ball Hardness 75°C
Rated Impulse Voltage 2.5kV
Ball Pressure Test 75°C
Dimensions (mm) 85 wide x 86 high x 42 deep
(1) Compressor delay only available if thermostat is set to cool operation.
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Mounting
Fix at a height of 1.5m
approx from the floor,
away from draughts
or heat sources such
as radiators, open fires
or direct sunlight.
Please Note:
This product should only be installed by a qualified electrician or
competent heating installer and should be in accordance with the
current edition of the IEEE wiring regulations.
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Wiring
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DIL switch settings
Slide the DIL switches to the settings required.
ON/OFF - boiler switches ON when below set temperature and
OFF when above.
CHRONO - energy saving feature which fires the boiler at
regular intervals to maintain a set temperature, achieving a
constant ambient environment for the user.
o use 6 Cycles for radiator systems.
o use 3 Cycles for underfloor heating.
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Heating selection
Cooling selection
COOL
ON/OFF
6 CYCLES
°F
COOL
NO DELAY
4 MIN DELAY
°F
HEAT
CHRONO
3 CYCLES
°C
HEAT
2 MIN DELAY
°C
COMPRESSOR DELAY
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Mounting (continued)
Resetting the unit
When power is first applied,
remove the dial and press the
RESET button for 2 seconds.
RESET
button
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Locking & Limiting
Locking - setting the thermostat at a temperature which
cannot be altered by the user.
Limiting - allowing the user to alter the temperature within
a predefined range, which is less than the full range of the
product (i.e. between 18-22°).
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What is a room thermostat?
...an explanation for householders
A room thermostat simply switches the heating system on and off
as necessary. It works by sensing the air temperature, switching on
the heating when the air temperature falls below the thermostat
setting, and switching it off once this set temperature has been
reached.
Turning a room thermostat to a higher setting will not make the
room heat up any faster. How quickly the room heats up depends
on the design of the heating system, for example, the size of boiler
and radiators.
Neither does the setting affect how quickly the room cools down.
Turning a room thermostat to a lower setting will result in the room
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being controlled at a lower temperature,and saves energy.
The heating system will not work if a timeswitch or programmer has
switched it off.
The way to set and use your room thermostat is to find the lowest
temperature setting that you are comfortable with,and then leave it
alone to do its job.The best way to do this is to set the room thermo-
stat to a low temperature – say 18°C – and then turn it up by one de-
gree each day until you are comfortable with the temperature.You
won’t have to adjust the thermostat further.Any adjustment above
this setting will waste energy and cost you more money.
If your heating system is a boiler with radiators,there will usually be
only one room thermostat to control the whole house.But you can
have different temperatures in individual rooms by installing ther-
mostatic radiator valves (TRVs) on individual radiators. If you don’t
have TRVs, you should choose a temperature that is reasonable for
thewholehouse.IfyoudohaveTRVs,youcanchooseaslightlyhigh-
er setting to make sure that even the coldest room is comfortable,
then prevent any overheating in other rooms by adjusting theTRVs.
Room thermostats need a free flow of air to sense the temperature,
so they must not be covered by curtains or blocked by furniture.
Nearby electric fires,televisions,wall or table lamps may prevent the
thermostat from working properly.
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User Instructions
Display
The LCD displays actual room temperature until the setting dial
is moved.
LED Indicators
Power on - Green (left hand LED).
Thermostat output on - Red (right hand LED).
Setting the temperature
Turn setting dial to required temperature. The selected
temperature will flash in the LCD to signify it is showing set
temperature.
After a short period the display stops flashing and shows actual
room temperature.
Thermostat status (heat mode only)
A flame symbol will be lit whenever the thermostat is calling
for heat.
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Thermostat status (cool mode only)
A snowflake symbol will be lit whenever the thermostat is calling
for cooling.If this is seen to flash,the thermostat output is delayed
for a short period to prevent compressor damage.
RET M-LS model only
This model is fitted with an Auto/Off switch.
When the switch is set in “I” position the
thermostat controls at the temperature set by
the setting dial.
When set to “O” the thermostat output is turned off and “Of” is
displayed.
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RET M-NSB model only
This model is fitted with a “Day”/Nightswitch.
When the switch is set to the “Sun Symbol”, the
thermostat controls at the temperature set by
the setting dial.
When set to the “Moon symbol”, the thermostat controls at 4°C
below the temperature set by the setting dial.
NOTE: if used to control cooling, thermostat controls 4°C higher, with
switchinMOONposition.
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Instructions d’installation
Caractéristiques RET M, RET M-LS, RET M-NSB
Plage de témperatures 5 - 30°C
Bouton de réglage et écran LCD l
Mode chrono-proportionnel ou
Marche/Arrêt l
Fonctionnement Chauffage ou
Refroidissement y compris
temporisateur de compresseur
l(1)
Echelle °F ou °C sélectionnable l
Charge de contact du relais de sortie 10-264 Vac, 50/60 Hz, 3 (1) A
Commutation 1 SPDT
Alimentation 230 Vac ± 15%,50/60 Hz
Température ambiante maximale 45°C
Essai à la bille 75°C
Tension de choc nominale 2.5kV
Dimensions (mm) 85 larg x 86 haut x 42 épaiss
(1) Temporisation du compresseur disponible uniquement si le thermostat
est réglé en mode Refroidissement
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Remarque:
Ce produit doit être installé exclusivement par un électricien qualifié ou un
installateur de chauffage compétent et doit être conforme à la version en
vigueurdesréglementationsdecâblageIEEE.
Montage
Fixez l’appareil à une
hauteur d’environ 1,5
m du sol, à l’écart des
courants d’air ou des
sources de chaleur telles
que radiateurs, flammes
nues ou lumière directe
du soleil.
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Câblage
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DIL switch settings
ON/OFF (Marche/Arrêt) – la chaudière se met en marche lorsque
la température est inférieure à la température définie et s’arrête
lorsque la température est supérieure.
Chrono-proportionnel – fonction d’économie d’énergie qui
déclenche la chaudière à intervalles réguliers pour maintenir une
température définie, offrant un environnement ambiant constant
à l’utilisateur.
 o Utilisez 6 cycles pour les systèmes de radiateur.
 o Utilisez 3 cycles pour le chauffage sous plancher.
Faites glisser les
microcontacts dans les
positions requises.
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COOL
ON/OFF
6 CYCLES
°F
COOL
NO DELAY
4 MIN DELAY
°F
HEAT
CHRONO
3 CYCLES
°C
HEAT
2 MIN DELAY
°C
COMPRESSOR DELAY
Chauffage
Froid
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Montage
Réinitialiser l’appareil
Alapremièremisesoustension,
retirer le cadran et appuyer
sur le bouton REINITIALISER
pendant 2 secondes.
Bouton
REINITIALISER
Instructions d’installation
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