20446.N - Thermostat Vimar - Free user manual and instructions

Product Type	Electronic ON/OFF chronothermostat
Brand	Vimar
Model	20446.N
Power supply	3 V DC via 2 AA LR6 1.5 V batteries (supplied)
Backup battery	CR2032 (for program backup)
Battery life	More than one year
Control type	ON/OFF (all or nothing)
Heating/cooling adjustment range	+5 °C to +35 °C
Frost protection adjustment range	+4 °C to +15 °C
Adjustable thermal differential	0.1 °C to 1 °C
Reading accuracy	≤ ±0.5 °C between 15 and 30 °C; ≤ ±0.8 °C at extremes
Display and adjustment resolution	0.1 °C
Temperature unit	Celsius (°C) or Fahrenheit (°F) selectable
Programming	Daily and weekly, 3 programmable levels (+ frost protection)
Relay output	Changeover contact 5(2) A 250 V~
Remote control input	For telephone dialer (INPUT terminals)
Display	Large screen: ambient temperature, day, time, status, programmed profile
ErP class	Class I, contribution 1%
Protection rating	IP40 with anti-removal screws; IP20 without
Operating temperature	0 °C to +40 °C
Dimensions (in modules)	3 modules (width 17.5 mm per module)
Weight	Approximately 150 g (with batteries)
Maintenance	Replacement of AA batteries and CR2032 backup battery if necessary
Cleaning	Clean with a dry, soft cloth; do not use chemicals
Safety	Class II device with SELV circuits; anti-removal device
Spare parts	AA batteries, CR2032 backup battery, anti-removal screws
Repairability	Battery replacement by user; for other repairs, contact a professional

Frequently Asked Questions - 20446.N Vimar

How to set the time and day on the Vimar 20446.N thermostat?

Press the P key until the day name flashes. Use the ▲/▼ keys to select the day, then press OK. Then set the hours and minutes in the same way.

What to do when the battery symbol flashes on the screen?

The symbol indicates that the power batteries are nearly exhausted. Replace the two AA LR6 batteries as soon as possible. If the symbol is continuously lit, the relay is forced OFF; replace the batteries immediately.

How to program an automatic weekly program?

Press P until PROG and the day name flash. Select the day with ▲/▼, then OK. For each hour (0 to 23), choose a temperature level (T1, T2, T3) with ▲/▼ and confirm with OK. To copy the program to the next day, press OK when COPY flashes.

How to switch to timed manual mode?

Press the F key until the symbols ☐ and flash. Use ▲/▼ to set the duration (max 99 hours), then press OK. The thermostat will operate in manual mode during this time.

How to configure frost protection mode?

Press F until the frost protection symbol ❄ flashes. Set the setpoint temperature between 4 and 15 °C with ▲/▼, then press OK. This mode is not accessible in cooling mode.

What to do if the device no longer responds?

First check the batteries: replace them if necessary. If the problem persists, perform a reset: remove the batteries, wait 30 seconds, then reinsert. You will need to reprogram the time and day.

How to connect a telephone dialer to the thermostat?

Connect the clean potential-free contact of the dialer to the INPUT terminals of the thermostat. Closing the contact forces manual mode and locks the keys. Opening activates frost protection (heating) or OFF (cooling).

How to change the temperature scale from Celsius to Fahrenheit?

Press P until °C or °F flashes. Use ▲/▼ to select the desired scale, then press OK.

What to do if the screen displays '☐' (empty battery)?

The symbol indicates that the battery charge is exhausted. The output is forced to OFF. Replace the AA LR6 batteries immediately. After replacement, set the time and day again.

Is it possible to temporarily override the temperature in automatic mode?

Yes, in automatic mode, use the ▲/▼ keys to change the displayed temperature. This change does not modify the stored program and remains active until the next scheduled time change.

USER MANUAL 20446.N Vimar

Battery-timer-thermostat

Battery-timer-thermostat 19

FRANÇAIS

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12. CONFORMITÀ NORMATIVA.

Direttiva BT.

Direttiva EMC.

When the symbol flashes, the batteries are dying.

REPLACE THEM AS SOON AS POSSIBLE!

When the symbol ☐ is lit, the output relay automatically switches OFF.

REPLACE THE BATTERIES!

Programs and settings are not erased when the batteries are low or when changing them.

After replacing the batteries, the time and day of the week must be reset.

CONTENTS.

1. Description 20
2. Field of application 20
3. Installation 20
4. Front view, controls and display 21
5. Connections

5.1. Circulation pumps, burners, solenoid valves 22
5.2. Motorized valves 22
5.3. Phone dialler control 23
5.4. Insertion/Replacement of buffer battery 24
5.5. Insertion/Replacement of supply battery 26

1. Anti-removal device 27
2. Key functions 28
3. Operation 29
4. Programming 30
   10 Main characteristics 34
5. Installation rules 35
6. Conformity to standards 35

ENGLISH - 19

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1. DESCRIPTION.

Electronic timer-thermostat for ON/OFF ambient temperature control (heating and air-conditioning), daily/weekly programming, class I temperature control device (contribution 1%), input for remote switching of phone dialer on/off, change-over relay output 5(2) A 250 V\~, powered by batteries AA LR6 1.5 V - 3 modules.

2. FIELD OF APPLICATION.

The appliance 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, every day, throughout the week.

The large display shows the room temperature, day, time, system operating status and the daily temperature profile set for the current program.

3. INSTALLATION.

The appliance must be installed in flush or surface mounting boxes with Eikon, Arké and Plana frames and plates at a height of 1.5 m off the floor in a suitable position for correctly detecting the ambient temperature. It must not be installed in niches, behind doors and curtains or in areas affected by sources of heat or atmospheric factors. In particular, it must not be installed on outer walls or in association with appliances that generate heat (e.g. dimmers or lamps).

It should be used in dry, dust-free places at a temperature between 0 °C and +40 °C.

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4. FRONT VIEW, CONTROLS AND DISPLAY.

P: Access to programming mode.

C: Delete or return to the previous screen.

Mouse: To set numerical values and for scrolling.

OK: Confirm or continue to the next screen.

F: Select operating mode.

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5. CONNECTIONS.

5.1 - Circulation pumps, burners, solenoid valves.

5.2 - Motorized valves.

5.3 - Phone dialler control.

It is possible to control the timer-thermostat remotely with a phone dialler connected to the INPUT terminals.

By closing the contact, the timer-thermostat is forced onto manual operation and the keys P, C, “▲” “▼” (horizontal bar), OK, F are locked (if any key is pressed the display will show the 🔊 symbol blinking for approximately 3 s).

On opening the contact the timer-thermostat is forced onto:

• Antifreeze mode if heating is on.
• OFF if air-conditioning is on. In this phase the keys of the timer-thermostat are not locked and it is possible to operate the device.

Connection with phone actuator with clean contact without potential only SELV environment.

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5.4 - Insertion/Replacement of buffer battery.

The buffer battery (type CR2032) permits changing the settings and programming even when the appliance has been removed from its seat. In addition, it ensures updating the time and day and the operation of the display for at least 10 days if there is no mains voltage.

When the timer-thermostat is taken out of its seat the display shows the ☐ symbol.

It is not, moreover, possible to control the relay output.

The buffer battery is necessary for the appliance to work properly.

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5.5 - Insertion/Replacement of supply battery.

The empty battery symbol ☐ on the display indicates that the battery charge is running down.

Warning! In this phase the output status is always OFF.

To restore operation it is necessary to change the batteries.

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6. ANTI-REMOVAL DEVICE.

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Screw for protection against removal, on the rear of the switch

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Screw for protection against removal, on the top of the switch.

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7. KEY FUNCTIONS.

- KEY P.

Used to access the various programming modes.

Pressed in sequence, it permits setting the:

• time and day of the week;
• automatic program;
• temperature values for manual, antifreeze, temperature levels T1, T2, T3 and temperature differential operation;
• heating or air conditioning;
• temperature scale.

- KEY C.

Used to cancel a modification or exit a mode and return to the previous one.

- KEY "▲" "▼" (vertical bar).

Used to edit and/or scroll through the selected parameters (increase/decrease numerical values and temperature levels, select the day of the week, etc.).

- KEY OK.

Confirm settings.

- KEY F.

Used to select the timer-thermostat operating mode.

Pressed in sequence, it permits setting:

• switch-off;
• timed switch-off;
• antifreeze;
• manual;
• timed manual;
• automatic.

8. OPERATION.

Make the electrical connections, install the appliance and then insert the batteries.

If the relay is on, the flame symbol 🔊 is shown in the winter or the propeller symbol ✿ in the summer.

- SWITCH-OFF.

Used to switch off the system.

Press key F until the required mode is displayed (OFF blinking), then press the OK key.

• TIMED SWITCH-OFF.

Used to switch off the system for a set time.

Press key F until the required mode is displayed (symbols ⚙ and OFF blinking); using key “▲” “▼” set the time (max 99 hours), then press the OK key.

N.B. It is not possible to access the Timed Switch-Off mode if the appliance is already OFF or in another timed status.

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- ANTIFREEZE.

Used to set a minimum temperature level to avoid damage to pipework or prevent the temperature from falling below a certain safety level.

Press key F until the required mode is displayed (symbol blinking); using key “▲” “▼” set the temperature (from 4 to 15 °C), then press the OK key.

N.B. It is not possible to access the Antifreeze mode if the appliance is on Air Conditioning.

- MANUAL.

Used to set switching the heating or air-conditioning on and off manually.

Press key F until the required mode is displayed (symbol 🤨 blinking), then press the OK key.

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• TIMED MANUAL.

Used to set manual operation for a set time. Press key F until the required mode is displayed (symbols 📊 clinking); using key “▲” “▼” set the time (max 99 hours), then press the OK key.

N.B. It is not possible to access the Timed Manual mode if the appliance is already on Manual or in another timed status.

- AUTOMATIC.

Used to set operation according to the previously configured automatic program.

Press key F until the required mode is displayed (temperature histograms blinking); then press the OK key.

N.B. It is possible to force the temperature values temporarily with the key “▲” “▼” (for example when the required value is higher or lower than the predefined one); this forcing will not however, alter the set program.

9. PROGRAMMING.

- SETTING THE TIME AND DAY.

Used to set the current time and day.

- Press key P until the required mode is displayed (name of day blinking); using key “▲” “▼” set the day of the week, then press the OK key.

- Using key “▲” “▼” set the hour (hours blinking), then press the OK key.

- Using key “▲” “▲” set the minutes (minutes blinking), then press the OK key.

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• AUTOMATIC PROGRAM.

Used to modify the automatic program for each day of the week.

Programming starts from hour 0 and ends with the selection of the temperature level for hour 23.

• Press key P until the required mode is displayed (name of day blinking, PROG and temperature histograms lit up steady); using key “▲” “▼” set the day of the week, then press the OK key.
• Using key “▲” “▼” set the valid temperature level for the selected time (histogram blinking), then press the OK key.
• Repeat the above point for all the hours from 0 to 23; scrolling is done with keys C and OK (to pass on to the next hour press OK, to go back to the previous hour press C).
• After setting hour 23 the display will show COPY blinking; by pressing OK the program that has just been set will be copied onto the next day whereas by pressing C the programming can be done hour by hour.

N.B. In addition, it is possible to set the time to activate the temperature levels in steps of 15 minutes.

After selecting the time to set the temperature level, press in sequence key F (the interval of 15, 30 and 45 minutes is shown on the display at the top left by the selected time).

Example: You want to program the timer-thermostat so that on Thursday at 7:45 it moves onto temperature level T3.

• Press key P until the automatic program is displayed;
• Using key “▲” “▼” select Thursday (GIO blinking);
• Press the OK key to select hour 7 (histogram blinking);
• Using key “▲” “▼” set the temperature level on T3;
• Press key F to display 07:45 at top left on the display;
• Press the OK key to confirm the setting.

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• TEMPERATURE VALUES.

Used to set all the temperature values utilized for manual, anti-freeze, automatic (temperature levels T1, T2, T3) and temperature differential operation.

- Manual.

Press key P until the required mode is displayed (temperature blinking); using key “▲” “▼” set the required temperature, then press the OK key to confirm and pass on to setting antifreeze.

- Antifreeze.

Using key “▲” “▼” (TEMP lit up steady and temperature value blinking), set the antifreeze value (from 4 to 15 °C), then press the OK key to confirm and pass on to setting temperature level T1.

- Level T1.

Using key “▲” “▼” (TEMP and T1 lit up steady and temperature value blinking), set the required value for level T1, then press the OK key to confirm and pass on to setting temperature level T2.

- Level T2.

Using key “▲” “▼” (TEMP and T2 lit up steady and temperature value blinking), set the required value for level T2, then press the OK key to confirm and pass on to setting temperature level T3.

- Level T3.

Using key “▲” “▼” (TEMP and T3 lit up steady and temperature value blinking), set the required value for level T3, then press the OK key to confirm and pass on to setting the temperature differential.

- Temperature differential.

Using key “▲” “▼” (TEMP and diff lit up steady and value blinking), set the required value for the temperature differential (from 0.1 to 1 °C), then press the OK key to confirm and exit the menu.

• HEATING OR AIR CONDITIONING.

Used to select the timer-thermostat operating mode, choosing from heating or air conditioning.

Press key P until the required mode is displayed (symbol 🤨)

* blinking); using key “▲” “▼” set the required operation, then press the OK key to confirm.

• TEMPERATURE SCALE.

Used to set the unit of measurement of the temperature, choosing from between degrees Celsius (°C) and degrees Fahrenheit (°F).

Press key P until the required mode is displayed (symbol °C or °F blinking); using key “▲” “▼” set the required scale, then press the OK key to confirm.

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10. MAIN CHARACTERISTICS.

• Supply voltage: 3 V d.c. with 2 AA LR6 1.5 V batteries (provided).
- Battery life: over a year.
- Output: relay with 5(2) A 250 V\~ clean change-over contact
- Adjustment type: ON/OFF.
• Displayed temperature update: every 20 s.
• Room temperature display: 0 °C +40 °C.
- Reading resolution: 0.1 °C.
- Settings resolution: 0.1 °C
- Reading accuracy:

$$ - \leq \pm 0. 5 ^ {\circ} \mathrm{C} \text { between } + 1 5 ^ {\circ} \mathrm{C} \text { and } + 3 0 ^ {\circ} \mathrm{C}; $$

$$ - \leq \pm 0. 8 ^ {\circ} \mathrm{C} \text { at the extremes. } $$

• Temperature differential: adjustable from 0.1 °C to 1 °C.
- Adjustment range:

$$ - + 4 ^ {\circ} \mathrm{C} - + 1 5 ^ {\circ} \mathrm{C} \text { on antifreeze }; $$

$$ - + 5 ^ {\circ} \mathrm{C} - + 3 5 ^ {\circ} \mathrm{C} \text { on heating or air conditioning. } $$

• Clock error: ≤ ± 1 s a day.

• Main functions:

• hourly temperature setting;

• 3 programmable temperature levels for heating + 3 temperature levels for air conditioning + 1 antifreeze level;
• weekly programming;
• 1 automatic program that can be set by the user (for both heating and air conditioning);
• possibility of forcing the program by changing the temperature manually;
• adjustment for heating and air conditioning;
• antifreeze function;
• possibility of turning off with timer;
• turning on with a phone actuator;
• display in degrees Celsius or Fahrenheit;
• device reset.

- Protection rating:

• IP40 with screw against removal included;
• IP20 with screw against removal not included.

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• Appliances of class II: with SELV circuits.
  • Number of manual cycles: 3,000.
  • Number of automatic cycles: 100,000.
• Type of contact opening: micro-disconnection.
• Type of action: 1 BU.
• Tracking index: PTI175.
  • Pollution rating: 2 (normal).
  • Nominal pulse voltage: 4,000 V.
• Ambient temperature during transport: -25 °C +60 °C.
• Operating temperature: T40 (0 °C +40 °C).
  • ErP classification (Reg. EU 811/2013): class I, contribution 1%
• Software class: A.

11. INSTALLATION RULES.

Installation should be carried out by qualified personnel in compliance with the current regulations regarding the installation of electrical equipment in the country where the products are installed.

12. CONFORMITY TO STANDARDS.

LV Directive.

EMC Directive.

Standards EN 60730-1, EN 60730-2-9.

WEEE - Information for users

If the crossed-out bin symbol appears on the equipment or packaging, this means the product must not be included with other general waste at the end of its working life. The user must take the worn product to a sorted waste center, or return it to the retailer when purchasing a new one. Products for disposal can be consigned free of charge (without any new purchase obligation) to retailers with a sales area of at least 400 m², if they measure less than 25 cm. An efficient sorted waste collection for the environmentally friendly disposal of the used device, or its subsequent recycling, helps avoid the potential negative effects on the environment and people's health, and encourages the re-use and/or recycling of the construction materials.

ATTENTION!

2. CHAMP D'APPLICATION.

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7. FONCTION DES TOUCHES.

• TOUCHE P.

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7. TASTENFUNKTIONEN.

• TASTE P.

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