Danfoss ORT-01 Data sheet

Datasheet
ORT-01 Electronic Room Thermostat for use with OpenTherm boilers
Features
Dimensions
The ORT-01 is a sophisticated room thermostat which provides modulating control of OpenTherm equipped condensing gas boilers.
The thermostat is fully compliant with the OpenTherm communications protocol including low load regulation and domestic hot water keep hot feature now in common use in many combination boilers.
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78
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The thermostat utilises a micro processor which provides the accurate PI control algorithm and manages the bi-directional data communication with the boiler.
User interface is by means of an easy to understand setting dial and a status LED indicator that provides information on boiler output and a common alarm indication which is lit whenever a fault is encountered within the boiler.
Provides full modulation to OpenTherm equipped boilers
Simple to install 2-wire non-polarised low voltage communications
Accurate PI room temperature regulation
Signicantly improves boiler eciency
Dial setting provides easy to understand user interface
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Datasheet ORT-01Electronic Room Thermostat
Technical Performance
Laboratory tests comparing the performance of the ORT-01 OpenTherm room thermostat with that of a traditional electro-mechanical on/o thermostat, clearly show that modulating control gives the best level of comfort, the lowest level of energy consumption and the lowest level of harmful CO2 emissions.
The speed of response of the modulating thermostat is also signicantly faster than it’s on/o counterpart allowing even small changes in room temperature to be communicated to the boiler.
Results from tests made in a controlled laboratory environment, show that savings in the order of 15% are achievable when comparing the control of an OpenTherm boiler controlled by a modulating room thermostat compared to the same boiler being controlled by a traditional mechanical on/o thermostat.
Mechanical On/O Thermostatic Control of OpenTherm boiler
Modulating Thermostatic Control of OpenTherm boiler
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Datasheet
ErP
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ORT-01 Electronic Room Thermostat
Thermostat Specications
ErP Class
Features ORT-01
Code Number 087N774300
Temperature range 8-30°C
Maximum ambient temperature 45°C
Control type P + I
OpenTherm software version 2.3
Domestic hot water keep hot feature
Holiday mode
ID 14 low load control
Thermostat output Data
Construction EN60730-2-9
IP rating IP20
Supply voltage 24V DC from boiler
Wiring, non-polarised 2 wire bus
Control pollution situation Degree 2
Ball hardness test 75°C
Dimensions (mm) 86 high x 85 wide x 42 deep
ERP Class
The products represented within this document are classied according to, and allow completion of, the Energy Related Product (ErP) Directive System Package che and the ErP system data label. ErP Labelling obligation is applicable from 26th September 2015.
ErP Class Product Function and ErP Description
Modulating Room Thermostat, for use with modulating heaters
An electronic room thermostat that varies the ow temperature
V
of the water leaving the heater dependent upon measured room temperature deviation from room thermostat set point. Control is achieved by modulating the output of the heater.
Additional eciency
gain
3%
Wiring
Product
Class
OpenTherm connections
B
A
O
Important - To avoid damage to Boiler and Thermostat, connect only to OpenTherm connections on boiler, do not connect to any other power source.
O
in ORT- 01
Wires can be crossed
OpenTherm connections in boiler
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Datasheet
ORT-01 Electronic Room Thermostat
Danfoss Randall Ltd.
Ampthill Road Bedford MK42 9ER Tel: 0845 1217 400 Fax: 0845 1217 515 Email: danfossrandall@danfoss.com Website: www.danfoss-randall.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 subsequent 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 | 126v04 VDRKJ302
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