Danfoss RET2000 B User guide
Danfoss Heating
RET2000 B
Electronic digital thermostat with LCD
User Guide
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Thank you for buying a Danfoss product
Le agradecemos que haya comprado un producto de
Danfoss
Merci d’avoir choisi un produit Danfoss
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Danfoss Heating
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... an explanation for householders. A room thermostat simply switches
the heating system on and o 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 o 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 a ect how quickly the room cools down.
Turning a room thermostat to a lower setting will result in the room
being controlled at a lower temperature, and saves energy.
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What is a room thermostat?
RET2000
The heating system will not work if a timeswitch or programmer has
switched it o.
The way to set and use your room thermostat is to nd 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 thermostat
to a low temperature – say 64°F – and then turn it up by one degree
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 dierent temperatures in individual rooms by installing
thermostatic radiator valves (TRVs) on individual radiators. If you don’t
have TRVs, you should choose a temperature that is reasonable for the
whole house. If you do have TRVs, you can choose a slightly higher
setting to make sure that even the coldest room is comfortable, then
prevent any overheating in other rooms by adjusting the TRVs.
Room thermostats need a free ow of air to sense the temperature,
so they must not be covered by curtains or blocked by furniture.
Nearby electric res, televisions, wall or table lamps may prevent the
thermostat from working properly.
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Display
The LCD displays actual room temperature until the Λ or V button
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is pressed more than once. To activate the unit’s backlight press
the Λ or V button once, if no further buttons are pressed the
backlight will remain on for 6 seconds.
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Temperature
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Flame: shows when heating output is on
(in heating mode only)
Standby: shows when unit is manual set to standby
Snow ake: shows when cooling output is on
(in cooling mode only)
Battery: ashes when battery is low (battery units only)
Padlock: indicates keyboard lock has been set at
installation
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Setting the temperature
Press either the Λ or V buttons, the product backlight will come
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on.
Press either the Λ or V button again within 6 seconds, the display
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will ash with the current set temperature. While the display is
ashing press the Λ arrow to increase the set temperature to the
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required setting or the V arrow to decrease the set temperature.
If no buttons are pressed the display will return to actual
temperature after 4 seconds and the backlight will go out after
6 seconds.
Thermostat status (heat mode only)
A ame symbol will be lit whenever the thermostat is calling for
heat.
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