Datasheet
RET1000MD Delayed Start Room Thermostat
Features
RET1000MD Smart Room Thermostat combines sleek modern design with high performing energy saving control. The well-proportioned dial and clear temperature scale makes setting easy, including an easy to set upper and lower temperature limiting feature. All RET1000 thermostats include stylish backlit LED icons providing clear indication of power and output status. As well as standard on/off control the user can select to benefit from Danfoss chronoproportional control. Normally set at installation although easy to change via a DIP switch this micro-processor based control system will deliver increased comfort and improved economy.
Installer Settings |
RET1000MD |
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Function |
Setting |
Function |
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On/O |
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Chrono |
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6 Cycles |
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3/12 Cycles |
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3 Cycles |
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12 Cycles |
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Delayed Start On |
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4 |
Delayed Start O |
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Delay Curve |
The RET1000MD intelligent room thermostat |
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delays the start-up of the heating system by a |
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variable time period that is determined by the |
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difference in the room temperature compared |
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to the temperature set on the thermostat. The |
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smaller the difference, the longer the delay before |
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the heating is allowed to turn on. A built-in limit |
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ensures that the delay period cannot exceed 60 |
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minutes. |
When chrono-proportional mode is set, the thermostat introduces a fixed cycle rate on the system and then determines the duration of the On and Off periods within each cycle in
proportion to load. The control algorithm used to determine the on/off periods uses a proportional + integral (PI) routine to eliminate offset normally associated with on/off or simple proportional control.
Chrono-proportional control significantly improves comfort and generally improves boiler efficiency by optimising water temperature.
The RET1000MD is a smart room thermostat that incorporates an additional energy saving delay start feature, which delays the start-up of the heating dependent upon how close to set-point the room temperature is at the time heating is scheduled to turn on.
Under most load conditions, this feature reduces the number of hours per day that the system runs, without creating any discomfort. This feature can, if necessary, be cancelled if the user wishes to
override the delay period.
•Intelligent Delayed Start
•Selectable Chrono Proportional or On/Off control
•User Set Upper and Lower Temperature Limits
•Output On Indication
•Power Indication
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Temperature below thermostat setting, C
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Datasheet |
RET1000MD Delayed Start Room Thermostat |
Specifications and
Ordering Information
Product Conversion Table
ErP Class
ErP
Product 4
Class
Thermostat Features |
RET1000MD |
Ordering codes |
087N645400 |
Product Line |
03 |
Type |
Dial Thermostat |
Power Supply |
230Vac, 50/60Hz |
Output |
Volt free |
Setting temperature range |
5-30 °C |
Operating temperature range |
0-45 °C |
Switch rating |
3A at 230Vac |
Switch type |
SPDT type 1B |
IP Rating |
IP20 |
On/Off Control |
Yes |
Chrono-proportional control |
Yes |
Dimensions (mm) |
H84 x W84 x D37 |
New Part |
Can Replace |
RET1000MD |
RET-MD |
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 |
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efficiency gain |
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TPI Room Thermostat, for use with on/off output heaters |
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IV |
An electronic room thermostat that controls both thermostat cycle rate and in-cycle on/off ratio |
2% |
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of the heater proportional to room temperature. TPI control strategy reduces mean water tem- |
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perature, improves room temperature control accuracy and enhances system efficiency. |
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Wiring Details |
RET1000 MD |
TS715 si |
RET1000 MD |
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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 | 143v02 VDJTB202 |
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