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Contents
System 1
System 2
System 3
System 4
Proper use
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The heating controller RAMSES 856 top OT consists of the OT-Box
RAMSES top2 OT as well as the room thermostat RAMSES 850 top2
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OT, which transmits the values (target/actual values) via the Open-
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Therm bus. The 7-channel regulator regulates 2 heating circuits
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with the required circulation pumps and temperature sensors. In ad-
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dition, the domestic hot water circulation is maximised via program
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control with optional legionella protection function. The range of
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functions can be extended via connection of 2 OT boxes.
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• The device is intended for wall installation in the boiler room
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• Corresponds to Type 1 B in accordance with IEC/EN 60730-1
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• The entire system serves the purpose of digital heating
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regulation for time-dependent monitoring and control of room
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temperature (by means of circulation pumps, burner and/or
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motor mixing valve)
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• It is used in dry rooms with normal levels of domestic cleanliness
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• The controller is suitable only for the Heating-
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systems listed. For use in connection with other
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systems, contact the service department of Theben AG
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• Accessories: optional: RAMSES 850 top2 OT ( (8509132),
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feed temperature sensor (9070371), plunge sensor (9070379),
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floor sensor (9070321), external temperature sensor (9070459),
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additional OT box for system 5 (standard box 9070712)
Disposal
Dispose of equipment in an environmentally sound manner
2 2
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