Vemer Crono.X Bedienungsanleitung

English

ELECTRONIC

PROGRAMMABLE

THERMOSTAT

Crono.X

User Manual

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User Manual - CRONO.X programmable thermostat

English

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User Manual - CRONO.X programmable thermostat

English

Table of contents

Safety instructions pag. 34

Technical speciﬁcations pag. 36

Installation and assembly pag. 37

Dimensions pag. 38

Device description pag. 39

- Functions of keys pag. 39

- Display pag. 40

Initial startup – total reset pag. 40

Adjustment of time and date pag. 41

Automatic operation pag. 42

- Program selection pag. 42

- Program customizing pag. 43

- Winter temperature proﬁles pag. 45

- Summer temperature proﬁles pag. 46

Manual operation pag. 47

- Manual operation selection pag. 47

- Setting the manual temperature pag. 47

Device off mode pag. 48

Winter-heating/summer-air conditioning modes pag. 48

Timer-controlled operation pag. 49

- Timer-controlled off type pag. 49

- Timer-controlled manual type pag. 49

- Timer-controlled automatic type pag. 49

Control by telephone dialler pag. 50

- Conﬁguration for X.CODE BUS pag. 51

- Conﬁguration for X.CODE Wave and general-purpose phone dialer pag. 51

Other available functions

- Settings guard (password) pag. 52

- Automatic solar/daylight saving time switching pag. 52

- Maximum and minimum daily temperature pag. 54

- Low battery level indicator pag. 54

Advanced programming pag. 55

- On/off or proportional temperature-control method pag. 56

- Aantifreeze temperature pag. 58

- Unit of measurementage pag. 58

- External sensor pag. 59

- Control sensor pag. 59

- Enabling RS485 output (bus) pag. 59

- Memory address pag. 59

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User Manual - CRONO.X programmable thermostat

English

- Settings guard password pag. 59

- Total operating hour count pag. 60

- Battery charge status pag. 60

- Display brightness adjustment pag. 60

Battery replacement pag. 60

Error messages pag. 61

Connection pag. 61

Harmonized reference standards pag. 62

SAFETY INSTRUCTIONS

The CRONO.X thermostat performs 1B-type actions and is aimed for household or

similar premises, under a normal pollution degree.

During product installation and operation, it is necessary to observe the

following instructions:

1) The instrument must be installed by a qualiﬁed person

2) Disconnect power supply while installing the unit

3) Do not power or connect the product if any part of it is damaged

4) Connect the product considering the diagrams described in the following

manual and on the instrument

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User Manual - CRONO.X programmable thermostat

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User Manual

ELECTRONIC PROGRAMMABLE THERMOSTAT CRONO.X

Read all the instructions carefully

CRONO.X is a weekly programmable thermostat that unites ease of use with

some innovational functions not featured by traditional household temperature

controllers.

More speciﬁcally, this device is singled out by 6 features:

1) It displays or controls the temperature in a room situated at a maximum

distance of 40m by the use of an optional sensor (mod. X.Temp cod. VN883500)

2) A settings guard function is available in order to avoid unauthorized tampering

when the device is used in public premises.

3) The system’s on-off status can be remote-switched by landline or cellular

GSM phone. This is especially useful when the house is not used permanently or

it is a holiday home.

To implement this function it is necessary to install a device that receives calls

or SMSs and interfaces with the programmable thermostat (phone dialer mod.

VN782900 X.Code Wave for landline phone, VE072500 X.Code Bus for GSM

network)

4) Daylight saving time/solar time switching can be automatically enabled

or disabled

5) The cut-in differential can be adjusted from 0,1°C to 1,0°C

6) Temperature control can be set to ON/OFF mode or Proportional mode with

selectable band and periods, the latter being especially appropriate in

very large rooms with a strong thermal drift (sheds, systems including

fan-coils, aluminum or cast-iron radiators, etc.)

Also, when in manual mode, CRONO.X works as an ordinary thermostat.

Conversely, when in automatic mode: one of the three user-deﬁned temperature

levels can be chosen for each hour segment of the day.

CRONO.X controls both heating and air-conditioning systems.

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User Manual - CRONO.X programmable thermostat

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TECHNICAL SPECIFICATIONS

Code Model Description Power supply

VE081600

CRONO.X electronic programmable thermostat 2x1,5V (AA) batteries

• 4 available operation modes: Automatic, Manual, timer-controlled, off

• when in automatic mode, 7 temperature proﬁles can be selected and changed

by the user

• when in automatic mode, the user can assign one of three temperature levels

(T1, T2, T3) to each hour segment

• The device is suitable for the control of heating and air-conditioning systems

• Automatic solar/daylight saving time switching (can be disabled)

• Settings guard function for use in public premises (tampering protection)

• Optional external sensor (X.TEMP code VN883500) for temperature control or

reading (max 40 m; -40°C ÷ +60°C)

• Remote control using a dedicated phone dialer by Vemer (X.CODE WAVE and

X.CODE BUS) or by general-purpose phone dialer with a potential-free output

contact

• Maximum and minimum daily temperature reading

• Antifreeze temperature to be selected from 1°C to 10°C (can be disabled)

• Power supply: 2 alkaline batteries 1,5V (AA-size)

• Battery autonomy: approximately 2 years (for alkaline batteries 2500mAh at 23°C)

• Standby charge for battery replacement: approximately 1 minute

• Output: bistable relay with changeover contact

8A/250Vca (resistive load)

2000VA (resistive load)

• Termination:

- relay output: 3-pole terminal strip, max. section of cables 1.5 mm²

- external sensor input and telephone dialer: 4-pole terminal strip, max. section

of cables 1.5 mm²

• Installation:

- on wall

- to cover a 503 box

• Temperature-control range:

- HEATING mode Automatic/Manual operation: +2°C ÷ +35°C

- AIR-CONDITIONING mode Automatic/Manual operation: +10°C ÷ +35°C

• ON/OFF control cut-in differential: adjustable from 0,1°C to 1,0°C

• Proportional control with adjustable band and period

• Accuracy: ±0.5°C

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User Manual - CRONO.X programmable thermostat

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• Operating conditions:

- temperature 0°C ÷ +50°C

- relative humidity 20% ÷ 90%, non-condensing

• Storage temperature: -10°C ÷ +65°C

• Protection rating: IPXXD

• Insulation class: II

INSTALLATION AND ASSEMBLY

It is advisable to install the programmable thermostat in a zone in which the

temperature is the closest to the room average value.

Do not install it too near doors, windows, sources of heat, direct sunlight

or in places in which there is too much or too little air ﬂow.

Installing the programmable thermostat about 150 cm from the ﬂoor is

recommended.

Mounting can be on a wall or on a 503 box.

PLACEMENT REMOVAL

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User Manual - CRONO.X programmable thermostat

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FRONT FLAP OPENING

DIMENSIONS (mm)

123.0

93.5

33.5

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User Manual - CRONO.X programmable thermostat

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DEVICE DESCRIPTION

FRONT VIEW

0369121518

.. .. .. .. .. .. .. ..

Lu Ma Me Gi Ve Sa Do

FUNCTIONS OF KEYS

Value up

Value down

Manual operation

WINTER-HEATING mode

SUMMER-AIR CONDITIONING mode (only accessible using a sharp tool)

Reset (only accessible using a sharp tool)

To set T0 for Automatic operation

To set T1 for Automatic operation

To set T2 for Automatic operation

System off

Timer-controlled operation

Hourly programming for automatic operation;

hold it down for 3 sec. to enter advanced programming

To set the time and date;

hold it down for 3 secs. to enable or change the solar/daylight saving time

To conﬁrm the settings

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User Manual - CRONO.X programmable thermostat

English

DISPLAY

INITIAL STARTUP – TOTAL RESET

This procedure enables correct operation of the CRONO.X on ﬁrst startup, or resets

factory settings (Default settings).

Revert to factory settings – TOTAL RESET

• Place 2 alkaline batteries 1.5V – AA size, with correct polarity

• Press : all the segments will appear on the display

• Press within 3 secs: the reading “dEF” will appear

After a few seconds the reading “12:00” will ﬂash on the display.

• Press : the minutes will ﬂash

• Press : all the segments will be continuously lit, the hour, minutes and the

temperature measured will appear as well as a set of small squares indicating daily

programming

CRONO.X will operate in automatic mode (cfr. page 42).

• Set the time (cfr. page 41)

Default settings are:

Operation WINTER-HEATING

Mode AUTOMATIC

Hourly schedule MON-FRI PRG1; SAT-SUN PRG2

Temperature T0 5.0°C

Temperature T1 15.0°C

Temperature T2 18.0°C

Day

of the week

Time

Daily

temperature

proﬁle

System on

– WINTER

-HEATING MODE

System on

– SUMMER

-AIR-CONDITIONING

Timer

Internal

temperature

External

temperature

Manual

operation

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