Vimar 2905 User manual

Instructions manual
Thermostat 02905
User Manual

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Table of Contents
1. Thermostat 02905 ………………………………………………………………………………………………… 2
2. Inserting new / replacement batteries ………………………………………………………………………… 2
3. Display ……………………………………………………………………………………………………………… 3
3.1 Functions of the buttons ……………………………………………………………………………………… 4
3.2 Symbols ………………………………………………………………………………………………………… 4
3.3 Ecometer ……………………………………………………………………………………………………… 5
3.4 Locking the interface via PIN ………………………………………………………………………………… 5
4. Operating mode …………………………………………………………………………………………………… 6
4.1 Switched off (OFF) …………………………………………………………………………………………… 6
4.2 Manual…………………………………………………………………………………………………………… 7
4.3 Away …………………………………………………………………………………………………………… 8
4.4 Nighttime reduction …………………………………………………………………………………………… 9
4.5 Antifreeze …………………………………………………………………………………………………… 10
4.6 Remote reduction …………………………………………………………………………………………… 11
4.7 Remote activation …………………………………………………………………………………………… 12
5. Selecting user menu type and resetting default parameters …………………………………………… 13
6. Settings of the normal menu ………………………………………………………………………………… 14
6.1 Operating mode setting …………………………………………………………………………………… 14
6.2 Unit of measurement setting ……………………………………………………………………………… 14
6.3 Heating/air-conditioning setting …………………………………………………………………………… 15
6.4 Temperature set point setting ……………………………………………………………………………… 15
6.5 Multi-function input setting ………………………………………………………………………………… 15
6.6 OnOff/PID setting …………………………………………………………………………………………… 15
6.7 Info ……………………………………………………………………………………………………………… 15
6.8 Lock/unlock PIN setting …………………………………………………………………………………… 15
7. Cleaning the device ……………………………………………………………………………………………… 15
8. Regulatory compliance ………………………………………………………………………………………… 15

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1. Thermostat 02905
The thermostat 02905 is designed to control room temperature by acting on the control circuit of the burner
or circulation pump (heating) or on the control circuit of the air conditioner (air conditioning), ensuring an ideal
temperature.
Thanks to a touch screen display with an extremely user-friendly graphical interface, the user can manage the
system easily and comprehensively while keeping the device in a state of energy saving.
2. Inserting new / replacement batteries
When replacing batteries, remove the front panel by raising it with a screwdriver. Replace the batteries with
Alkaline 1.5V "AA" batteries.
The battery charge status is shown as follows:
• no icon battery charged
• flashing icon battery almost flat (replace it)
• fixed on icon battery flat (the device will go OFF
and it is no longer possible to
switch to operation).
CAUTION!
In case of replacement, dispose of batteries in the
specific differentiated collection bins
Fig. 1: Changing batteries

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3. Display
The touchscreen display allows you to control the system using the following buttons and icons:
I H G F E D C
A B
L
Fig. 2: Graphical interface and buttons
A: Battery charge status
B: Operating mode
C: Away
D: Confirm
E-F: Menu navigation and setting parameters
G: Back
H: Nighttime reduction
I: Settings menu
L: Ring indicating consumption level and energy savings indicator

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3.1 Functions of the buttons
: increases the numerical values. When it "disappears" from the display it means that the value
cannot be increased any more.
: decreases the numerical values. When it "disappears" from the display it means that the value
cannot be decreased any more.
: during navigation, it scrolls to the next item through the available menus. If it "disappears"
then you have arrived at the last of the items that can be scrolled.
: during navigation, it scrolls to the previous item through the available menus. If it "disap-
pears" then you have arrived at the last of the elements that can be scrolled.
: confirms the selected option (activates the submenu if there is one or displays the next
parameter/digit).
After each confirmation, the display shows the icon for approximately 1 s. In addition, if
the timer-thermostat is connected to the probe 02960 via the circuit board 02915, it will also
be possible to enable its acoustic signal.
: back (or cancel) exits the current screen/menu and returns to the previous one without
saving any changes. In menus with changes to multiple digits it lets you go back to change
the previous digit.
N.B. The field/value being edited is highlighted by the field/value itself flashing.
IMPORTANT: In order to avoid any accidental modifications, first press and hold down the required
icon displayed to enable the function.
3.2 Symbols
Depending on the different operating modes, the following icons could also be displayed:
: Calibration
: Entering the PIN
: Away
: Manual (ON)
: Nighttime reduction
: Antifreeze
: OFF
: Multi-function input ON
: Air conditioning
: Heating
: Confirm
: Eco (saving)

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3.3 Ecometer
Fig. 3: Set of ECOMETER icons
On the left-hand side of the display there is a set of icons called the "ECOMETER" that provide an overview
of the expected consumption as an aid to energy saving.
The information displayed is based on a consumption forecast obtained by comparing the currently set
temperature setpoint and the estimated average consumption (which therefore has nothing to do with the
current room temperature).
• The consumption level ring graphically indicates the expected level of consumption.
If this level is less than half, it means that there will be a saving compared to the conventional average
consumption; vice versa, if the level exceeds half, the expected consumption will be higher than the
conventional average.
• The energy saving indicator indicates whether the currently set setpoint will allow obtaining savings
with respect to the conventional average consumption.
3.4 Locking the interface via PIN
The thermostat lets you set a password (see par. 6.8) which inhibits any change to the operating mode (eg
switching from Manual to OFF), limits setting the temperature values and, more generally, blocks access
to the configuration menu.
This feature is useful to prevent the thermostat being used by unauthorized persons: the device prompts
you to enter the PIN, indicating a shutdown with the icon.
Fig. 4: Locking with PIN
Ring for the level of consumption
Energy saving
indicator

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7. Operating mode
The thermostat 02905 is able to adjust the temperature according to the following operating modes:
• Switched off (OFF): switches the system off without making any adjustments
• Manual (ON): lets you set the required temperature set-point manually
• Away: is a mode that lets you set the set-point in order to achieve significant energy savings during periods
when the user is away
• Nighttime reduction: this mode, which can be activated locally, is useful for changing the manual adjust-
ment set point in the hours of nighttime operation.
• Antifreeze: used to set a minimum temperature level to avoid damage to pipework or prevent the temper-
ature from falling below a safety level.
In addition, if the multi-function input of the thermostat has been suitably configured, you can remotely activate
the following modes:
• Remote reduction: conceptually similar to nighttime reduction, it acts on the comfort set point instead of
the one set locally in manual mode.
• Remote activation: lets you activate the system remotely by setting the comfort set point
• Summer/Winter switching: the multi-function input automatically switches the thermostat onto air-condi-
tioning mode (when on) or heating mode (when off).
The operating mode is selected via the SETTINGS menu (see chap. 6).
4.1 Switched off (OFF)
With this mode on, the thermostat is turned off and you cannot make any adjustments; in this case, the
icon is displayed above the temperature indicator.
When the thermostat is OFF, you cannot perform any operations other than activating the menus.
Fig. 5: Typical screen for OFF mode
For heating-only systems this mode is typically used in the summer.

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4.2 Manual (ON)
This is the "traditional" operating mode. The thermostat controls the room temperature and takes it to
the value set by the user.
Fig. 6: Typical screen for Manual mode
The set point can always be changed via or .
In the course of setting, the set point flashes and the circular ring fills up accordingly; this gives an indica-
tion of the expected consumption as a function of the set point you are setting:
Fig. 7: Manual set point setting
The selection is confirmed by touching .
The and icons in the lower right corner indicate whether the system is operating in heating or
air-conditioning mode respectively (icon illuminated = system on).

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4.3 Away
This mode is useful to achieve energy savings quickly and effectively whenever the user leaves the reg-
ulated room.
In "Away" mode the system makes the adjustment according to the "away temperature" setpoint .
The Away mode can only be activated in manual mode by touching .
The display will show the "away temperature" setpoint for approximately 2 seconds:
Fig. 8: Input in away mode showing the away temperature
Activation of this mode is identified by the icon above the temperature indicator:
Fig. 9: Away Mode
To exit and return to Manual mode touch the button again: