Danfoss FMT230D Data sheet

Datasheet

FlatStat - Type FMT230D

Flush Mounted Room Thermostat

Features

The FMT230D flush mount room thermostat combines the ease of use of a setting dial with accuracy and advanced features that are only available from microprocessor based controllers.

The LCD display, which normally shows actual room temperature, changes momentarily to show set temperature whenever the setting dial is moved.

This newly styled thermostat will fit a standard UK flush mounted electrical accessory box with a minimum depth of 25mm. Flush mounting and an ultra slim 16mm installed profile ensures the thermostat seamlessly blends in with existing decor and adds style to any home.

The FMT230D thermostat can be set up by the installer to provide both traditional on/off control, or more sophisticated chrono-proportional control for increased comfort and energy savings.

Installer Settings

DIL Switch Settings

1COOL HEAT

2ON/OFF CHRONO

3

6/12 CYCLES

 

3/9 CYCLES

4

9/12 CYCLES

 

3/6 CYCLES

 

If set in chrono-proportional mode, the thermostat imposes a fixed cycle rate on the system and then determines the duration of the On and Off periods within each cycle in proportion to the load. The control algorithm, used to determine the on/off periods within the chrono-proportional function, uses a proportional+integral (PI) routine to eliminate the offset normally associated with on/off or simple proportional control.

Chrono-proportional control also significantly improves comfort and generally improves boiler efficiency by reducing mean water temperatures.

This model is ideal for use with system or combination boilers and can be installed without the need for complicated wiring or commissioning. Providing a 230volt supply is present, this unit can be used to switch low voltage (voltage free) or 230v systems.

Flush mounted

Unobtrusive low-profile thermostat (16mm installed)

Intelligent heating control for increased fuel economy

Microprocessor accuracy

Setting dial with LCD temperature display

Range limiting

Tamper proof dial available

© Danfoss HS | 09/2015 | 722v02 VDRKN212

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Danfoss FMT230D Data sheet

Datasheet

FMT230D Flush Mount Room Thermostat

Specification and

Ordering Details

ErP Class

Wiring Details

Features

FMT230D

Code No

087N774400

Temperature Range

5 - 30°C

Setting knob and LCD display

 

Chrono-proportional or On/Off control

 

Heat or cool operation

 

Output relay contact rating

10-250 Vac, 50/60 Hz, 3 (1) A

Switching action

1 SPDT

Power supply

230 Vac ± 10%, 50/60 Hz

Maximum ambient temperature

45°C

Dimensions (mm)

85 wide x 85 high x 35 deep

ERP Class

The products represented within this document are classified according to, and allow completion of, the Energy Related Product (ErP) Directive System Package fiche and the ErP system data label. ErP Labelling obligation is applicable from 26th September 2015.

ErP Class

Product Function and ErP Description

Additional efficiency

gain

 

 

 

TPI Room Thermostat, for use with on/off output heaters

 

 

An electronic room thermostat that controls both thermostat

 

 

cycle rate and in-cycle on/off ratio of the heater proportional

 

IV

to room temperature. TPI control strategy reduces mean water

2%

temperature, improves room temperature control accuracy and

ErP

 

enhances system efficiency.

 

Product

 

 

Class 4

 

 

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NC NO COM

 

 

 

 

 

 

L

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

N

 

 

 

 

 

 

 

 

 

 

 

 

230 Vac

Dimensions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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<![endif]>Wall

 

 

 

 

 

 

 

85mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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<![endif]>Standard UK electrical box w/min depth 25mm

 

 

 

 

 

 

 

 

 

 

 

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<![endif]>85mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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<![endif]>85mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Danfoss Ltd.

Ampthill Road

Bedford MK42 9ER

Tel: 01234 364621

Fax: 01234 219705

Email: ukheating@danfoss.com

Website: www.heating.danfoss.co.uk

Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.

All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

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© Danfoss HS | 09/2015 | 722v02 VDRKN212

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