Vemer Chronos Key User manual

Cronotermostato

Digitale

CHRONOS KEY

Manuale d’Uso

User Manual

DIGITAL PROGRAMMABLE THERMOSTAT

English

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CHRONOS KEY Programmable Thermostat User Manual

■Dimensions Page 4

■Connection diagram Page 4

■Safety warnings Page 5

■Technical speciﬁcations Page 6

■Display and keypad Page 7

■Installation Page 9

■Programming menu Page 12

- Time and date modiﬁcation Page 12

- Programs modiﬁcation Page 12

- Temperatures T1, T2, T3 modiﬁcation Page 14

- Timing setting Page 16

- Advanced functions menu Page 17

■Manual operation Page 21

■Off operation Page 22

■Backlight management Page 24

■Minimum and maximum value Page 25

■Summer time change Page 25

■Regulation type Page 27

■Timings: what they are Page 29

■Instrument reset Page 31

■Battery replacement Page 31

■Reference standards Page 32

■Default values Page 33

■Winter preset programs Page 34

■Summer preset programs Page 35

Index

English

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CHRONOS KEY Programmable Thermostat User Manual

Digital programmable thermostat CHRONOS KEY

• Summer and winter operating mode

• Models available in white and black

colours

• Battery or 230 V power supply

• 7 programs available for the heating

mode

7 programs available for cooling mode

• Wall-mounted or covered installation

of box 503

• Weekly programming with 3 different

settable temperatures

English

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CHRONOS KEY Programmable Thermostat User Manual

Digital programmable thermostat CHRONOS KEY

Model Chronos Key

230 Bianco

Chronos Key

230 Nero

Chronos Key

Bianco

Chronos Key

Nero

Power supply

230Vac 50/60 Hz batteries 2 x 1,5V (type AAA)

Display blue backlight

(can be switched off)

blue backlight

(activated with a key touch

for 30 seconds)

Digital input — Conﬁgurable as input for

external probe or phone dialler

Installation Wall-mounting

(or to cover three-module built-in box)

English

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CHRONOS KEY Programmable Thermostat User Manual

DIMENSIONS

CONNECTION DIAGRAM

COM

NA NC

230V~

COM

NA NC

CONTATTO

ESTERNO

COM

NA NC

230V~

COM

NA NC

EXTERNAL

CONTACT

Thalos 230

Thalos

With external contact closed:

Setpoint = Setpoint programmed- 3°C

CONTATTO

CESTERNO

se contatto esterno chiuso:

Chronos spento

Chronos Key 230 Chronos Key

AUX

English

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CHRONOS KEY Programmable Thermostat User Manual

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

following instructions:

1) The instrument must be installed by a qualified person, in strict compliance

with the connection diagrams.

2) Do not power or connect the instrument if any part of it is damaged.

3) After installation, inaccessibility to the connection terminals without

appropriate tools must be guaranteed.

4) The instruments must be installed and activated in compliance with current

electric system standards.

5) Before accessing the connection terminals, verify that the leads are not live.

6) In the electrical system of the building where the instrument must be

installed, a switch and a protection device from the overcurrents must be

present (for Chronos Key 230 models only).

Code Model Description

VE725800 Chronos Key Bianco Programmable thermostat with battery in white

VE726600 Chronos Key Nero Programmable thermostat with battery in black

VE727400 Chronos Key 230 Bianco Programmable thermostat 230 V in white

VE728200 Chronos Key 230 Nero Programmable thermostat 230 V in black

SAFETY WARNINGS

Electronic touch screen programmable thermostats series with wall-mounting suitable

for the temperature control in household. Two versions are available:

■CHRONOS KEY, battery-powered, with a blue backlight display and with an input

for the connection of an external temperature probe or an external contact to switch

on/off the remote programmable thermostat (by telephone).

■CHRONOS KEY 230, mains powered supply, with a blue backlight display.

These instruments perform actions of 1B type and are intended for operating in

environments Pollution degree 2 and Overvoltage Category III (EN 60730-1).

English

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CHRONOS KEY Programmable Thermostat User Manual

TECHNICAL SPECIFICATIONS

• Power supply Chronos Key:

– 2 alkaline batteries 1.5 V (AAA type)

– battery life: 1 year

– battery charge level indication

– charge reserve ( for battery replacement): 1 minute

• Power supply Chronos Key 230:

– 230Vac (-15% ÷ +10%) 50/60Hz

– maximum consumption: 6 VA / 230Vac

– charge reserve ( for blackout): 2 days about

• Wall mounting or to coverage three-module in built box

• Terminals Chronos Key:

– 3 terminals for 1.5 mm² cable section for bistable output relay 5A / 250 Vac

– 2 terminals for 1.5 mm2cable section for digital input (external probe or on/off

with telephone activator)

• Terminals Chronos Key 230:

– 3 terminals for 1.5 mm2cable section for monostable output relay 5A / 250 Vac

– 2 terminals for 1.5 mm2cable section for power supply

• Temperature regulation:

– On/off with hysteresis setting between 0,1 °C and 1°C

– Proportional with settable band and period

• Summer/winter operating mode

• Weekly programming (7 programs available for each operating mode)

• Daily resolution: 1 hour (possibility to set delay activation of 15, 30, 45 minutes

independent for each hour)

• 5 settable temperatures:

– T1, T2, T3 in automatic operation

– Tm in manual operation

– Toff in off mode (antifreeze)

• Measured temperature display: 0 ÷ 50 °C

• Measurement precision: ±0.5 °C: ±0.5 °C

• Measured temperature resolution: 0.1°C

• Setpoint range: 2 ÷ 35 °C

• Clock precision: ±1 second/day

• Key lock by password

• Summer/winter time automatic change (excludable)

• Operating temperature: 0 ÷ +50 °C

• Storage temperature: -10 ÷ +65 °C

• Operating humidity: 20÷90% non condensing

• Protection degree: IP40

• Insulation: reinforced among accessible parts (frontal) and all other terminals

English

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CHRONOS KEY Programmable Thermostat User Manual

① Day of the week (DAY 1 = Monday)

②

Programming menu:

: date/time and summer time setting

: programs change mode (for automatic operating)

: temperatures setting T1, T2. T3

: timing menu

: advanced programming menu

: not used

③

Time and minutes

④

Load activation in summer mode/ cooling

⑤

Manual operation activation

⑥

Load activation in winter mode/heating

⑦

Measured environment temperature

⑧

Graphic of the active program for the current date (in automatic operation)

⑨

Off operation

⑩

Measured temperature of the external probe

DISPLAY AND KEYPAD

English

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CHRONOS KEY Programmable Thermostat User Manual

■

Keypad

The keys have different functions according to the instrument status and they will be

described step by step in this user manual.

Multipurpose keys are not built into the instrument, that is to say contemporary

pressures of 2 or more keys.

There are two types of pressure:

- brief pressures,

- long pressures, with duration higher than 3 seconds.

During the press of a key, the display is blue.

■Cleaning the display

To clean the display use a soft, lint-free cloth, without using excess force.

English

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CHRONOS KEY Programmable Thermostat User Manual

INSTALLATION

• The programmable thermostats of Chronos Key series are designed for wall-

mountig. Alternatively, they can be installed to cover three-module built-in box.

• The programmable thermostat must be installed at a height of about 1.5 m above

the ﬂoor, keep away from direct sunlight, far from doors, windows, heat sources,

locations with excess or total lack of ventilation.

 Connect the wires to the terminal

blocks of the base, as shown in the

“connection diagram”.

 Fix the base on the wall using the

screws supplied.

 Only for battery power supply models

only: insert the batteries into the

battery compartment on the back

of the programmable thermostat,

respecting the polarity

 Hook the programmable thermostat

to the base, at first matching teeth

with the higher side.

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