GW12705 - Thermostat Gewiss - Free user manual and instructions

Product type	Room thermostat
Brand	Gewiss
Model	GW12705
Power supply	230 V ~ 50/60 Hz
Adjustment range	+5 °C to +35 °C
Thermal gradient	±0.5 °C at 20 °C
Output type	Relay with changeover contact (NO/NC)
Protection degree	IP30
Max wire cross-section	2.5 mm²
Insulation class	Class II
Operating temperature	0 °C to +50 °C
Reference standards	EN55014-1, EN55014-2, EN61000-3-2, EN61000-3-3
Main functions	Summer/winter mode, manual switching
Controls	Rotary knob with temperature scale (5-35 °C)
Indicator lights	Yellow LED (location), green LED (output status)
Recommended installation height	1.50 to 1.70 m from floor
Electrical connection	Terminals L (phase), N (neutral), 1 (NO), 2 (common), 3 (NC)
Maintenance and cleaning	Clean with a dry cloth, do not use harsh chemicals
Safety	Installation by qualified personnel, disconnect power before servicing
Repairability	Spare parts available from the manufacturer
Weight	Approximately 150 g
Dimensions (approx.)	80 x 80 x 30 mm

Frequently Asked Questions - GW12705 Gewiss

How to install the Gewiss GW12705 thermostat?

Installation must be carried out by a qualified professional. Turn off the power supply before connecting the wires to the terminals: L (phase), N (neutral), 1 (NO), 2 (common), 3 (NC). Respect the recommended height of 1.50 to 1.70 m from the floor, away from heat sources.

What is the adjustable temperature range?

The adjustment range is from +5 °C to +35 °C. Use the rotary knob to select the desired temperature.

How to use summer/winter mode?

The thermostat has a summer/winter function allowing switching between heating and cooling modes. Refer to the manual for precise adjustment.

What do the indicator lights mean?

The yellow LED serves to locate the device. The green LED indicates the output status: on means the load (heating/cooling) is activated.

What type of load can I control?

The thermostat controls loads via a changeover relay contact (NO/NC). It is suitable for boilers, burners, circulation pumps or zone valves, with limited inductive load.

What is the maximum cable cross-section?

The maximum wire cross-section at the terminals is 2.5 mm². Use cables suitable for the installation.

Is the thermostat compatible with air conditioning systems?

Yes, in summer mode, the thermostat can control a cooling system. Ensure the contact is correctly wired (NC/NO) according to the equipment.

What are the safety precautions?

Installation must comply with standards HD 384 / IEC364. Always disconnect the power before intervening. Use the device in a non-dusty and dry environment (IP30).

How to maintain the thermostat?

Clean the device with a dry and soft cloth. Do not use chemical or abrasive products. Periodically check proper operation.

Where to find spare parts?

Spare parts are available from the Gewiss manufacturer or its authorized distributors. Contact customer service for any request.

USER MANUAL GW12705 Gewiss

NA/COM/NC 8 A / 250 V~

Electronic summer/winter thermostat

Attention - Important

Warning! The safety of this appliance is only guaranteed if all the instructions given here are followed scrupulously.

These should be read thoroughly and kept in a safe place.

Chorus product series can be installed in compliance with the requirements of HD 384 / IEC364 standards covering equipment for domestic and similar uses in a dust-free environment and where no special protection against the penetration of water is required.

The GEWISS sales organization is ready to provide full explanations and technical data on request.

INDEX

GENERAL PRODUCT DESCRIPTION page

• Functions 12

INSTALLATION INSTRUCTIONS

• Location advice 13
• Electrical connections. 15

OPERATING INSTRUCTIONS

-Commands and signals 16

Functions

PERFORMANCE DATA

Function summer / winter.

Luminous signals:

• Yellow localisation function LED.
• Green output status indicator LED (NA contact access closed).

TECHNICAL SPECIFICATIONS

Power supply: 230V 50÷ 60Hz

Power absorbed: 2VA

Type of relay output: with exchange contact

NA/COM/NC 8 A / 250 V~

User connections (load): 2 or 3 wires

Max. wire section at the terminals: 2,5mm

Type of insulation: Class II

Grade of protection: IP 30

Pollution: Normal

Regulation range: from +5^ to +35^

Thermal gradient: ± 0 , 5^ to 20^

Temperature operating limits: 0^ ÷ +50^

Reference standards for CE marking:

EMC EN55014-1 EN55014-2 EN61000-3-2 EN61000-3-3

Recommendations for positioning:

Install the thermostat at a height of approx. 1.50 ÷ 1.70 m from floor level, away from heat sources, draughts, doors and windows.

Heating systems with thermostat controlling

A Wall mounted boiler
B Burner
C Circulation pump
D Zone solenoid valve

N.B.: The examples given in the following documentation are for illustrative purposes only.

Electrical connections

Important: The installation and electrical connecting of the devices and appliances must be undertaken by qualified personnel and in accordance with standards and regulations in force at the time. The manufacture declines to accept any responsibility concerning the use of the products in accordance with particular environmental or installation regulations, as this responsibility rests entirely with the installer.

Warning: Prior to installing the product, ensure the mains electrical supply is disconnected.

With the mains power supply disconnected:

Connect the power supply wires to terminals: n^ L (Line) and n^ N (Neutral).

Connect the wires of the device to be controlled to terminals:

$$ n ^ {\circ} 1 = N A \text {c o n t a c t} $$

$$ n ^ {\circ} 2 = \text {c o m m o n} $$

$$ n ^ {\circ} 3 = N C \text {c o n t a c t} $$

With strong inductive loads (pumps and solenoid valves) it is recommended that an RC filter is connected in parallel to the load.

Cabling terminals

Power supply : L - Phase

N - Neutral

Output relay: 1 = NA contact

$$ 2 = \text {c o m m o n} $$

$$ 3 = N C \text {c o n t a c t} $$

OPERATING INSTRUCTIONS

Commands and signal

Knob with temperature scale: 5^ to 35^
LED signalling the load state: illuminated = load on

FRANÇAIS

Attention - Important

Puisance absorbee:2VA

NO/COMM/NF 8 A / 250 V~

NA/CON/NC 8 A / 250 V~

According to article 9 paragraph 2 of the European Directive 2004/108/EC and to article R2 paragraph 6 of the Decision 768/2008/EC, the responsible for placing the apparatus on the Community market is:

Gewiss S.p.A Via A. Volta, 1 - 24069 Cenate Sotto (BG) Italy Tel: [phone] Fax: [phone] E-mail: [e-mail]

[phone]

8.30 - 12.30 / 14.00 - 18.00

lunedi ÷ venerdi - monday ÷ friday

[phone]

[e-mail]

www.gewiss.com