Computherm T30RF Manual

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GENERAL DISCRIPTION OF THE THERMOSTAT
The
COMPUTHERM
T30RF type switched-mode room thermostat
is suitable to regulate the overwhelming majority of boilers and air
conditioners available in Hungary. It can be easily connected to any
gas boiler having a two-wire thermostat connection point and to any air
conditioning apparatus or electrical apparatus, regardless of whether
they have a 24 V or 230 V control circuit.
Temperature can be measured and set at digital display more precisely
as compared to simple, conventional thermostats. In heating mode
the thermostat switches the boiler or any other appliances on below
and off above the adjusted temperature, respectively, and contributes
to reduce energy costs while maintaining comfort. In cooling mode it
switches the opposite way.
The device consists of two units. One of them is the portable control
unit (thermostat), while the other unit is the receiver that controls
the boiler. Because there is a wireless (radio-frequency) connection
between the two units, no cable is required between the thermostat and
the boiler. The two units have been tuned in the factory. The trouble-
free operation is ensured by its own security code. The installation
and connection of the receiver unit is described in .Chapter 8
To increase the lifetime of the batteries, the thermostat will not transmit
signals continuously. Instead it will repeatedly transmit the actual
signal every 10 minutes. Therefore, the regulation of the heating or
cooling will continue even after a blackout.
The portability of the thermostat o󰀨ers the following advantages:
– no need to lay a cable, which is especially advantageous when
old buildings are being modernized,
– the optimal location of the device can be selected during
operation,
– it is also advantageous when you intend to locate the thermostat
in di󰀨erent rooms in the course of the day (e.g. in the living room
during the day but in the bedroom at night).
The effective range of the transmitter incorporated in the thermostat
is approximately 100 m in open terrain. This distance may become
considerably shorter within a building, especially when a metal structure,
reinforced concrete or adobe wall stands in the way of radio waves.
The simultaneous use of several
COMPUTHERM
room thermostats
and one
COMPUTHERM
Q4Z zone controller provides the possibility
for the thermostats to also control a pump or a zone valve in addition
to starting the heater or cooler. This way it is easy to divide a heating
/ cooling system into zones, thanks to which the heating / cooling
of each room can be controlled separately, thus greatly increasing
comfort. Furthermore, the zoning of the heating / cooling system will
greatly contribute to the reduction of energy costs, as due to this only
those rooms will be heated / cooled at any time where it is required.
1. LOCATION OF THE DEVICE
The thermostat of the
COMPUTHERM
T30RF type device can be
freely moved in your residence. It is reasonable to locate it in a room
used regularly or for many hours per day so that it is in the direction of
natural ventilation in the room but protected from drought or extreme
heat (e.g. direct sunlight, refrigerator, chimney, etc). Do not use in wet,
chemically aggressive or dusty environment. Its optimal location is
0.75 - 1.5 m above floor level.
IMPORTANT WARNING! If the radiator valves in your at are
equipped with a thermostatic head, adjust it to maximum temperature
or replace the thermostatic head of the radiator valve with a manual
control knob in the room where the room thermostat is to be located,
otherwise the thermostatic head may disturb the temperature control
of the at.
2. PUTTING THE THERMOSTAT INTO
SERVICE
To put the thermostat into service, detach the back panel from the
thermostat then remove the battery compartment cover.
Insert the 2 alkaline batteries (AAA, type LR03) in the product box into
the battery compartment according to the marked polarities.
Warning! Alkaline batteries may only be used for this appliance.
Carbon-zinc batteries known as durable or long life batteries and
chargeable accumulators are not suitable for the operation of this
appliance. The icon appearing on the display to indicate low
battery voltage warns reliably that the batteries should be replaced
only when alkaline batteries are used.
After the batteries have been installed, replace the battery compartment
cover and mount the thermostat, depending on the intended method
of operation, onto its wall-mounted back panel or portable holder then
press the button located on the front panel once to turn ON the
thermostat.
3. CALIBRATION OF THE THERMOSTAT
You can calibrate the thermometer of the appliance (to correct
measured temperature). To enter the calibration menu, in the OFF
state of the thermostat, press and hold the button for 3 seconds.
Then the thermostat enters the calibration menu, the sign and „ ”
the set calibration temperature appear on the display which shows
by default. Then you can set the required temperature by
means of buttons in the range between 8 °C and +8 °C, and
in 0.5 °C increments. Following this, to save the setting and exit wait
10 seconds or press the button four times. Now the thermostat is
OFF and the setting will be activated when the thermostat is turned
on again.
4. SWITCH BETWEEN HEATING AND
COOLING MODES
You can easily switch between heating (factory setting) and cooling
modes.
The output terminals of the receiver unit are closed NO and COM
below the set temperature in heating mode, and they are closed above
the set temperature in cooling mode (taking the switching sensitivity
into account). The closed position of the connection NO COMand
points of the output relay is indicated by the appearance of the icon
in the display of the apparatus both in heating and cooling modes.
To enter the switching mode menu, in the OFF state of the thermostat,
press and hold the button for 2 seconds. Then the thermostat
enters the calibration menu, the sign and the set calibration „ ”
temperature appear on the display. Now press the button twice.
Then the thermostat enters the menu used to switch between heating
and cooling modes and signs ” and „ (factory setting) appear „ ”
on the display. You can switch between heating and cooling ( )
( ) and modes by using buttons. Following this, to save the
setting and exit wait 10 seconds or press the button two times.
Now the thermostat is OFF and the setting will be activated when the
thermostat is turned on again.
5. OPERATION OF THE INSTALLED
THERMOSTAT
With the temperature adjustment buttons of the thermostat ( or )
you can set the desired temperature between 5 °C and 30 °C in
0.5 °C increments. The thermostat controls the device connected to
it (e.g. gas boiler or pump) based on the measured and the currently
set temperature, taking the switching sensitivity of the thermostat into
account. This means that if the thermostat is in heating mode and set
to 22 °C, then with the ±0.2 °C switching sensitivity the connection
points NO and COM of the output relay are closed below 21.8 °C
(heating is turned on) and opened at temperatures above 22.2 °C
(heating is turned off). In cooling mode, the relay switches exactly
the opposite way. On the other hand, after the temperature has been
modified by the temperature adjustment buttons of the ( or )
thermostat the switching sensitivity is not taken into account therefore
the thermostat will switch (turn off the heating) in case of ±0.1 °C
temperature difference.
Depending on the change in the room and set temperature the
thermostat controls (turns on or off) the heating/cooling system
connected thereto. By default, the and contact pairs of the NO COM
relay of the receiver are open and the and contact pairs are NC COM
closed. The closed position of the NO and connection points of COM
the output relay is indicated by the appearance of the
icon on the
display of the apparatus both in heating and cooling modes.
To increase the lifetime of the batteries, the thermostat will not transmit
signals continuously. Instead it will repeatedly transmit the actual
signal every 10 minutes. Therefore, the regulation of the heating or
cooling will continue even after a blackout.
From both a comfort and an energy-efficiency point of view, it is
recommended to activate more than one switch for each day.
Furthermore, it is advised that a comfort temperature is used only
those times, when the room or building is in use, since every 1 °C
decrease of temperature saves approximately 6% energy during a
heating season.
6. BATTERY REPLACEMENT
The average lifetime of the batteries is 1 year. The thermostat
indicates battery charge level (e.g. ) on its display. The batteries
should be replaced when the battery level icon on the display of the
thermostat shows low charge level ( ). To replace the batteries,
disconnect the thermostat from the wall mount bracket or holder, then
detach the battery cover. Insert 2 AAA micro alkaline batteries (LR03
type) in accordance with the diagram in the battery compartment.
After the batteries have been replaced the temperature value should
be readjusted because the apparatus returns to factory settings.
Warning! Alkaline batteries may only be used for this appliance.
Carbon-zinc batteries known as durable or long life batteries and
chargeable accumulators are not suitable for the operation of this
appliance. The icon appearing on the display to indicate low
battery voltage warns reliably that the batteries should be replaced
only when alkaline batteries are used.
7. RESETING THE THERMOSTAT TO ITS
FACTORY DEFAULT SETTINGS
You can return all settings of the apparatus (set temperature,
temperature calibration and heating/cooling mode) to their defaults.
To restore factory settings press the button for 2 seconds in
the OFF state of the thermostat. Then the thermostat enters the
calibration menu, the sign „ ” and the set calibration temperature
appear on the display which shows by default. Now press
the button three times. Then the thermostat enters the factory
reset menu and the „ sign appears on the display. To reset the ”
thermostat to factory settings press the button for 3 seconds. The
thermostat then switches o󰀨 and its settings they are reset to factory
defaults.
If you do not wish to restore factory settings wait 10 seconds or press
the button and the thermostat turns OFF.
8. THE RECEIVER UNIT
8.1. Installation and connection of the receiver unit
WARNING! The device must be installed and connected by
a qualied professional! Before putting the thermostat into
operation make sure that neither the receiver nor the apparatus
to be connected to is not connected to the 230 V power network.
Modifying the thermostat can cause electric shock or product
failure.
The
COMPUTHERM
T30RF thermostat receiver unit should be mounted
on the wall in a place protected against moisture, dust, chemicals
and heat, in the vicinity of the boiler. When choosing the location
of the receiving unit you should remember that large metal objects
(e.g. a boiler, bu󰀨er tank, etc.) and metal building structures may have
an adverse e󰀨ect on propagation of radio waves. If it is possible, in
order to ensure trouble-free RF connection, we recommend that you
install the receiving unit at a height of 1.5 to 2 m and at a distance
of 1 to 2 m from the boiler or other bulky metal constructions. We
recommend that you check reliability of RF connection at the place
selected before installing the receiving unit.
ATTENTION! Do not install the receiver unit under the housing of
the boiler or near hot pipes because it may damage the parts of the
device or compromise wireless (radio-frequency) connection. To
avoid electric shock, entrust a specialist with connecting the receiver
unit to the boiler!
COMPUTHERM
T30RF
Wireless (radio-frequency) digital room
thermostat
Instruction Manual

Produkt Specifikationer

Mærke: Computherm
Kategori: Ikke kategoriseret
Model: T30RF

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