Digital Thermostat

Model: MCD3-1999

Key Features

  • Highest rating according to the European Ecodesign Directive
  • Possible to integrate with external control
  • Contemporary design, compatible with standard wall sockets and available in several colours
  • Intuitive user-interface for trouble-free programming and daily use

Product Overview

The Coldbuster MCD3 is a full-featured digital thermostat designed to the highest standards for controlling electric underfloor heating. Meeting all requirements of the European Ecodesign Directive, the MCD3 helps lower the environmental impact by eliminating power wastage. Its flexible features ensure warm and comfortable indoor temperatures regardless of different climates and individual needs. The MCD3 benefits from the User Centered Design approach of OJ Electronics, granting effortless handling during both installation and daily use.

Description of the Digital Thermostat Unit: A white digital thermostat with a flip-down cover. The display shows the time "17:30" and the temperature "22.5°C".

Energy Efficiency and Smart Control

Perfectly in line with the design philosophy of OJ Electronics, the fully digital MCD3 controller is engineered to meet the European Ecodesign Directive for electric floor heating to the highest degree. This allows users to bring their electric floor heating solution into compliance with requirements without needing to purchase and install additional controllers.

Tailoring Heating to Specific Needs

Users can pre-programme the MCD3 in various ways to reduce energy consumption and heating costs. The flexible programming of the built-in '4 Event Heating Schedule' allows intuitive tailoring of heating to specific daily and weekly needs. The 'Manually Override' function enables immediate adjustments to match actual needs with the push of a button. The intelligent 'Adaptive Start' function automatically adjusts heating to the specific environment, ensuring the right temperature at the right time. The 'Open Window' function helps save energy by pausing heating when a sudden temperature drop is detected, such as when a window or door is opened to colder air.

Design and Installation

The MCD3 thermostat ensures user-friendliness through its intuitive interface and self-explaining functions, allowing for a "set and forget" operation. While offering comprehensive built-in functions for direct home control, it can also be connected to a compatible external controller for remote operation, integrating the electric floor heating into a Smart Home system.

The MCD3 is designed to accommodate different floor characteristics, such as wooden floors and tiles. The floor sensor ensures tiles are not cold to walk on and helps protect wooden floors from overheating, all while maintaining user comfort.

Description of the Thermostat Unit Dimensions and Wiring Diagram: The thermostat unit has dimensions of 84mm (height) x 84mm (width) x 40mm (depth), with a build-in depth of less than 20mm and a weight under 120g. The wiring diagram shows connections for a 230VAC, 50/60Hz supply with a maximum load of 16A. It indicates terminals for Line (L), Neutral (N), L2, L3, and a Sensor input. The diagram also shows a connection for SENSOR and MAX LOAD.

Technical Data

ParameterSpecification
Purpose of controlElectric underfloor heating
Method of mountingWall mounting in a socket or mounting box
Supply voltage230-240 VAC 50/60 Hz
Max. pre-fuse16 A
Built-in interrupter2-pole, 16 A
Enclosure ratingIP 21
Wire size, terminalsCurrent 13 A 1.5 mm², solid core wire; Current 13 A to 16 A - 2.5 mm², solid core wire
ELV limits realizedSELV 24 VDC
Output relayMake contact - SPST - NO
Output, loadMax. 16 A / 3600 W
Control principlePWM/PI
Standby consumption< 0.75 W
Backup time (timer)> 2 minutes
DimensionsH/84, W/84, D/40 mm (Build-in depth <20mm, Weight <120 g)
Display21 x 21 mm LCD display
Control pollution degree2
Overvoltage categoryIII
Type of action1.B
Software classA
Rated impulse voltage4kV
Ball pressure temperature (TB)125°C
EU registered designDM/089 338
External sensor typeNTC 12 kΩ/25°C (Max cable length: 30 meters)
External sensor accuracy< ±1°C for +15°C - +35°C
Operating temperature-10°C..+40°C
Storage temperature-30°C..+50°C

Contact Information

For enquiries, please contact Coldbuster Floor Heating.

Call: 1800 85 75 65

Text: 0488 855 826

Email: support@coldbuster.com.au

Website: www.coldbuster.com.au

For more details, scan the QR code provided in the original document.

Notes

Please be advised that certain images within these instructions depict the European model. All units supplied in Australia are fully compliant with Australian Standards.

© 2022 OJ Electronics A/S

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