Gewiss GW10765H Thermostat User Manual

Gewiss GW10765H Thermostat 

PRODUCT OVERVIEW

1. Common for inputs
2. Auxiliary input for potential-free contact
3. Input for external temperature probe sensor
4. NO Output
5. NC Output
6. Common for outputs
7. Programming LED
8. Programming key
9. Bus terminal
10. Light intensity sensor

• Device safety is only guaranteed when the safety and usage instructions are respected, so keep them handy. Make sure these instructions are received by the installer and end user.
• This product must only be used for the purpose for which it was designed. Any other form of use should be considered improper and/or dangerous. If you have any doubts, contact the GEWISS SAT technical support service.
• The product must not be modified. Any modification will annul the warranty and may make the product dangerous.
• The manufacturer cannot be held liable for any damage if the product is improperly or incorrectly used or tampered with.
• Contact point indicated for the purposes of fulfilling the applicable EU directives and regulations:

GEWISS S.p.a. Via A. Volta, 1 – 24069 Cenate Sotto (BG) – Italy
Tel.: +39 035 946 111 – [email protected]

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 25cm. 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 construction materials. GEWISS actively takes part in operations that sustain the correct salvaging and re-use or recycling of electric and electronic equipment.

PACK CONTENTS

1. 1 Easy thermostat – flush-mounting
2. 1 BUS terminal
3. 1 Cover
4. 1 Installation manual

BRIEFLY

The Easy flush-mounting timed thermostat with humidity management is used to manage a humidification/dehumidification system alongside a temperature adjustment system, or to interact with the temperature adjustment system and the causes of humidity formation. The temperature and humidity are adjusted by commanding – on a KNX BUS – the KNX actuators that control the heating or air cooling elements, (including the fan coils) and the humidification/dehumidification elements.
The thermostat can work in “autonomous” control mode, to autonomously manage the temperature adjustment systems (or parts of it); when combined with the Easy flush-mounting timed thermostat on the other hand, it can work in “Slave” control mode to create multi-area temperature adjustment systems. The thermostat allows you to visualize and independently modify the operating parameters of up to 4 Easy flush-mounting temperature adjustment probes.
The Setpoint values used by the thermostat are the ones set locally.
The thermostat offers:

• 2 types of operation: heating and cooling with independent control algorithms;
• 4 operating modes: OFF (anti-freeze / high-temperature protection), Economy, Pre-comfort and Comfort;
• 4 heating adjustment temperatures (Teconomy, Tpre-comfort, Tcomfort, Tantigelo (Tanti-freeze));
• 4 cooling adjustment temperatures (Teconomy, Tpre-comfort, Tcomfort, Tprotezione_alte_temperature (Thigh_temperature_protection));
• 2 control modes: Slave (if combined with a Master device) or autonomous;
• 2 types of control: HVAC or Setpoint;
• the possibility to independently visualize/modify the parameters of up to 4 Easy temperature adjustment probes;
• 2-way or 4-way system control algorithms: 2 points (ON/OFF command), proportional PI (PWM type control), fan coil (3 speeds);
• 1 relay output with NO/NC contact, that can be used by the thermostat to command the heating and/or cooling solenoid valve;
• 1 input for a potential-free contact (for the window contact function);
• 1 input for NTC external temperature sensor (e.g. protection sensor for underfloor heating).

The thermostat is powered from the BUS line and is equipped with an LCD display with RGB backlighting, a front light intensity sensor (for automatic display lighting adjustment), 4 command push-buttons, and a built-in sensor for detecting the ambient temperature (whose value is sent on the BUS every 15’ and following a 0.5°C temperature variation).
The thermostat does not have its own humidity sensor, so the relative humidity value must be supplied by an external KNX sensor.

FUNCTIONS

The thermostat input channels can be configured with Easy Controller to implement your choice of one of the following functions:

• Slave function
  If combined with a Master device (e.g. an Easy timed thermostat), the thermostat can work in Slave mode: if the active type of control is HVAC, it is not possible to modify this control locally; if the active type is Setpoint or HVAC, the operating Setpoint can be temporarily forced by ±3° at the local level.
• Reception of remote commands
  The thermostat can receive from other KNX devices (e.g. Easy timed thermostat) the commands for setting the type of operation (heating or cooling) and the HVAC mode (or operating Setpoint).
• Scenes
  The device can store and execute up to 8 scenes. Each scene can be associated with a type of operation (heating or cooling), the HVAC mode (or operating Setpoint), and the forcing of the temperature.
• Window contact
  The device manages the window contact function; when the window contact is open, this function forces the thermostat into OFF mode (if the control type is HVAC) or forces the Tantigelo (Tanti-freeze)/Tprotezione_alte_temperature (Thigh_temperature_protection) Setpoint (if the control type is Setpoint). When the window is closed again, the thermostat resumes the condition it was in beforehand, or it executes the lower priority commands received when the window was open.
• Relative humidity management
  The device receives the relative humidity measurement from an external KNX sensor, and can manage up to 5 relative humidity thresholds by sending BUS commands when the thresholds are exceeded and restored.
  The thermostat output channels can be configured with Easy Controller to implement your choice of one of the following functions:
• Solenoid valve management
  The thermostat allows you to send the ON/OFF command to the KNX actuators that control the solenoid valve for heating, cooling, or heating/cooling.
• Fan coil management
  The thermostat is used to manage the speed of a fan coil (3 speeds), both during heating and during cooling.
• Sending of status signals
  The device can transmit its operating parameters (HVAC mode, operating type, and Setpoints active) and current data (measured temperature) to the other devices on the KNX BUS.
• Control of remote elements
  If the system contains remote elements with their own control logic (e.g. Easy temperature adjustment probes), the thermostat can be used to visualise and set their operating parameters (max. 4 probes).

POSITION OF THE COMMANDS

The thermostat is equipped with a backlit LCD display and four command push buttons that can always be accessed (figure G).

DESCRIPTION OF THE COMMANDS

COMMAND PUSH-BUTTONS

1. Select operating mode / Confirm
2. Adjust temperature (+) / Visualise pages
3. Adjust temperature (-) / Visualise pages
4. Setting the parameters
   INFORMATION ON THE DISPLAY
5. Clock / KNX temperature adjustment probe visualized / Value shown on the humidity page (Hr = relative humidity; HA = specific humidity; tr = dew point temperature)
6. Settings menu / Set the values to send to the KNX temperature adjustment probe
7. Heating activation if it flashes: no/incorrect reception of heating solenoid valve alert
8. Cooling activation if it flashes: no/incorrect reception of cooling solenoid valve alert
9. Type of operation: heating (winter) if it flashes: the floor temperature alarm in progress
10. Type of operation: cooling (summer)
11. Enable remote commands if it flashes: operation on basis of a remote command
12. Fan coil operating mode
    • speed OFF
    • speed 1 (automatic/manual)
    • speed 2 (automatic / manual)
    • speed 3 (automatic / manual)
      if the fan flashes: no/incorrect reception of fan coil speed alert
      if the segments flash: the speed set (manually or by algorithm) is waiting to be activated
13. A thermostat in Slave operation
14. Temperature measured / Temperature, relative humidity, specific humidity, dew point temperature measured by KNX temperature adjustment probe / Setpoint on KNX temperature adjustment probe input if it flashes: manual forcing of the setpoint or end of humidity probe monitoring time
15. Temperature measurement unit—
16. Indication of auxiliary input status (I = contact closed, O = contact open)
17. The thermal residual current device
18. Visualization of temperature measured by KNX temperature adjustment probe
19. Thermostat mode
    • Economy (in heating mode) – Comfort (in cooling mode)
    • Pre-comfort (in heating mode and cooling mode)
    • Comfort (in heating mode) – Economy (in cooling mode)
    • Anti-freeze / High-temperature protection
      if the segments flash: the setpoint is temporarily forced
      if OFF flashes: manual device switch-off (anti-freeze/high-temperature protection)

INSTALLATION INSTRUCTIONS

ATTENTION: the device must only be installed by qualified personnel, observing the current regulations and guidelines for KNX installations.
CORRECT POSITIONING
To correctly measure the controlled ambient temperature, the thermostat must not be installed in niches, near doors or windows, or next to radiators or air-conditioning units, and it must not be in the line of draughts or direct sunlight (figure H).

ASSEMBLY

(figure I)RECOMMENDATIONS FOR INSTALLING THE KNX

1. The length of the BUS line between the thermostat and the power supply must not exceed 350 meters.
2. The length of the BUS line between the thermostat and the furthest KNX device to be commanded must not exceed 700 meters.
3. To avoid unwanted signals and overvoltages, do not use ring circuits.
4. Keep a distance of at least 4 mm between the individually insulated cables of the BUS line and those of the electricity line (figure C).
5. Do not damage the electrical continuity conductor of the shielding (figure D).

ATTENTION: the unused BUS signal cables, and the electrical continuity conductor, must never touch any live elements or the earthing conductor.
ELECTRIC CONNECTIONS
Figure B shows a diagram of the electrical connections.

1. Connect the red wire of the BUS cable to the red clamp (+) of the terminal, and the black wire to the black clamp (-). Up to 4 BUS lines can be connected to the BUS terminal (same-colored wires on the same terminal) (figure E).
2. Insulate the shield, the electrical continuity conductor, and the other white and yellow wires of the BUS cable (if a 4-conductor BUS cable is being used), that are not necessary (figure D).
3. Insert the BUS clamp in the pins of the device. The correct connection direction is determined by the fixing rails. Insulate the BUS terminal with the special cover, that must be fixed to the device. The cover guarantees the minimum separation distance of 4mm between the power cables and the BUS cables (figure F).
4. Connect any inputs and the output contact to the screw terminals on the back of the thermostat (figure A).

USER INSTRUCTIONS

• BEHAVIOUR UPON THE FAILURE AND RESETTING OF THE BUS POWER SUPPLY
  If power fails on the BUS, the device will not carry out any action. When the BUS power supply resumes, the thermostat will reactivate the conditions that were in place prior to the power failure.
  The thermostat is not equipped with a buffer battery, so the time must be reset manually.
  Following the drop and subsequent resetting of the BUS power supply, the relay contact remains open.
• MAINTENANCE
  The device does not require any maintenance. Use a dry cloth if cleaning is required.
  SETTING THE PARAMETERS AND PROGRAMMING WITH AN EASY CONTROLLER
  Detailed information about how to set the thermostat parameters and how to program with Easy Controller is given in the Easy thermostat Programming Manual and the Easy device (Easy Controller) Programming Manual (www.gewiss.com).
• PROGRAMMING WITH ETS
  The device can be configured with the ETS software. Detailed information about the configuration parameters and their values is given in the Technical Manual (www.gewiss.com).

TECHNICAL DATA

• Communication: KNX BUS
• Power supply: Via KNX BUS, 29 V DC SELV
• Current absorption by the BUS:10 mA
• BUS cable: KNX TP1
• Command elements:4 front button keys 1 miniature button key for programming
• Outputs:1 relay with NO/NC potential-free contact
• Max switching current:5A (cosϕ=1), 250V AC
• Inputs :1 input for potential-free contact (max. cable length 10m)
  1 input for external temperature sensor (e.g. GW 10 800) (NTC 10K)
• Visualisation elements
  1 RGB color display with front light intensity sensor for backlighting adjustment
  1 red LED for programming
• Measuring elements:1 internal sensor
  adjustment range: 5°C .. +40 °C
  measurement range: 0°C .. +60 °C
  measurement resolution: 0.1°C
  measurement accuracy: ±0.5°C between +10°C and +30°C
• Temperature adjustment range:
  • T antigen (T anti-freeze): +2 – +7°C
  • T protezione alte temperature (T high temperature protection): +30 – +40°C
• Other Setpoints: +5 – +40°C
• Usage environment: Dry, indoor places
• Operating temperature:-5 – +45°C
• Storage temperature:-25 – +70°C
• Relative humidity: Max 93% (non-conservative)
• BUS connection:2-pin coupling terminal – Ø 1 mm
• Electric connections: Screw terminals – max. cable section 2.5 mm2
• Degree of protection: IP20
• Size:2 Chorus modules
• Standard references: Low Voltage Directive 2014/35/EU Electromagnetic Compatibility Directive 2014/30/EU, EN50090-2-2, EN50428
• Certifications: KNX

Follow the instructions and keep them safe for a delivery to the end user. Avoid any misuse, tampering, and modifications. Comply with the current regulations regarding the systems.

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