C820RQ

Dual-power room thermostat

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• DESCRIPTION
• ADVANTAGES
• TECHNICAL SPECIFICATION
• HOMOLOGATION AND INSTALLATION
• TECHNICAL LITERATURE

• DESCRIPTION
  0

  Modern, contemporary design with 3 LED digits and 3 buttons.

  Universal installation and flexibility of use thanks to dual battery and 230V power supply,
  complete rectangular and square base kit.

  Suitable for controlling heating or cooling systems also for hospitality applications.

  Energy saving and comfort optimisation through modulating control
  (with TPI technology – Time Proportional and Integral control).

  General features

  • Temperature adjustment scale 2 – 40 °C, increase 0.1°C
  • Measurement scale/room T display -9 to +50 °C; resolution 0.1 °C
  • Adjustment differential STD, 0.3 – 5 K
  • Thermal gradient of reference 4 K/h
  • Maximum room temperature 45°C
  • Adjustment ON/OFF or TPI
  • LED switch-off 5 – 10s from last session
    always ON (only with 230V mains supply)
  • Temperature sensor type NTC
  • Storage temperature -10°C – 60°C
  • Protection rating IP32
  • Degree of pollution 2
  • Temperature display Celsius
  • Display lock with password
  • Limiting scale ranges setting minimum and maximum setpoint value in summer/
    winter

  Electric features

  • Power supply 2 x 1.5 V AA alkaline batteries or 220-230Vac@50/60Hz
  • Maximum input power 1 W
  • Relay contact range 5(3)A 250 Vca
  • Type of action 1 B.U. (Micro-disconnection)
  • Type of output 1 relay for heating/cooling (3 screw terminals, closed + open)
  • Software Class A
  • Electric insulation Double insulation
  • Pulse voltage 4000V
• ADVANTAGES
  0

  Modern, contemporary design with 3 LED digits and 3 buttons.

  Universal installation and flexibility of use thanks to dual battery and 230V power supply,
  complete rectangular and square base kit.

  Suitable for controlling heating or cooling systems also for hospitality applications.

  Energy saving and comfort optimisation through modulating control
  (with TPI technology – Time Proportional and Integral control).

  Advantages

  ADVANCED FUNCTIONS
  The C820RQ is a room thermostat that allows temperature setpoint adjustment in ON/OFF or TPI mode.
  OPTIMISATION
  When the thermostat is set with ON/OFF control, this function allows the required setpoint temperature to be reached by
  acting on the on/off times of the heating/cooling system according to the type of system installed and the set differential,
  minimising the energy consumption of the system itself.
  TPI LOGIC (Time Proportional & Integral control)
  If the thermostat is powered by 230V mains, the special TPI algorithm can be used. In this control mode, the thermostat
  reaches the setpoint with accuracy and precision to maintain a more constant level of comfort while guaranteeing the
  shortest possible system switch-on time.
  Depending on a number of settable parameters, such as the energy class of the flat, the type of emission terminal, the
  proportional band, the control period and the room temperature, the thermostat optimises the system’s running time with
  proportional and integral action.
  The output is always a single contact but time-controlled. As the room temperature reaches the setpoint temperature, the
  switch-on time of the thermostat in each period decreases. In this way, the TPI control reduces boiler starts and maintains a
  more constant comfort level around the required setpoint. This translates into greater comfort and cost savings for the end
  user.

  It is also possible to access two different menus for configuring certain parameters:
  ■ USER MENU
  – Password setting
  – Stand-by time
  – Display light intensity
  – Offset for temperature correction
  – Season (summer/winter)
  – Firmware release version
  ■ ADVANCED MENU:
  – Winter season minimum and maximum set point value
  – Summer season minimum and maximum set point value
  – Antifreeze setting
  – Data displayed on the homepage
  – ON/OFF – TPI control function
  – Optimisation for ON/OFF function
  – Static differential
  – Anti-seize pump
  – Virtual relay
  – Energy class for TPI function
  – Emission terminal for TPI function
  – TPI adjustment period
  – IPT proportional band
  – Device reset

• TECHNICAL SPECIFICATION

  Power supply	2 x 1.5V AA alkaline batteries or 220-230Vac@50/60Hz
  Battery life	> 1 year
  Relay contact range	5(3)A 250 Vca
  Temperature adjustment scale	2 - 40°C, increase 0.1°C
  Adjustment differential	STD, 0.3 - 5 K
  Thermal gradient of reference	4 K/h

• HOMOLOGATION AND INSTALLATION
  Homologation

  REGULATIONS AND APPROVALS
  ■ Compliant with EN 60730-1 and second parts;
  ■ Compliant with Directive 2014/30/EU (EMC);
  2014/35/EU (LVD)
  ■ ErP classification (Reg. EU 811/2013 – 813/2013):
  Class IV; 2%

  Installation and use

  INSTALLATION
  ■ SQUARE BASE: Wall-mounting or flush-mounting in
  box type 500 and 502 at a height of approx. 1.5 m above
  the floor in a suitable position to correctly detect the
  room temperature.
  ■ RECTANGULAR BASE: Wall-mounting or flushmounting in type 503 box at a height of approx. 1.5
  m above the floor in a suitable position to correctly
  detect the room temperature.

  OPERATION
  ■ The chronothermostat has 3 buttons, the minimal
  functions of which vary according to the operating
  context. All more advanced functions and the setting of
  secondary parameters can be set from the advanced
  menu.
  ■ The C8020RQ thermostat allows 3 operating modes:
  ■ COMFORT – for wellness-oriented adjustment.
  Adjustable from 2 to 40°C;
  ■ ECONOMY – for more energy-saving regulation.
  Adjustable from 2 to 40°C;
  ■ OFF – system switched off (Summer season) or
  in antifreeze mode, settable from 2 to 7°C (Winter
  season).

• TECHNICAL LITERATURE
  • C820RQ technical data sheet EN
  • C820RQ conformity EU declaration
  • C820RQ IT / EN instructions
  • C820RQ DE Gebrauchsanweisungen
  • C820RQ ES hoja de instrucciones
  • C820RQ FR feuille d'instructions
  • C820RQ RU instructions
• FAQS