Proper use
The heating controller RAMSES 856 top OT consists of the OT-Box
RAMSES top2 OT as well as the room thermostat RAMSES 850 top2
OT, which transmits the values (target/actual values) via the Open-
Therm bus. The 7-channel regulator regulates 2 heating circuits
with the required circulation pumps and temperature sensors. In ad-
dition, the domestic hot water circulation is maximised via program
control with optional legionella protection function. The range of
functions can be extended via connection of 2 OT boxes.
• The device is intended for wall installation in the boiler room
• Corresponds to Type 1 B in accordance with IEC/EN 60730-1
• The entire system serves the purpose of digital heating
regulation for time-dependent monitoring and control of room
temperature (by means of circulation pumps, burner and/or
motor mixing valve)
• It is used in dry rooms with normal levels of domestic cleanliness
• The controller is suitable only for the Heating-
systems listed. For use in connection with other
systems, contact the service department of Theben AG
• Accessories: optional: RAMSES 850 top2 OT ( (8509132),
feed temperature sensor (9070371), plunge sensor (9070379),
floor sensor (9070321), external temperature sensor (9070459),
additional OT box for system 5 (standard box 9070712)
Disposal
Dispose of equipment in an environmentally sound manner
Contents
Proper use 2
Disposal 2
Safety advice 3
Installation and dismantling 3
Connection 4
Terminal layout 5
Description 6
Start-up with RAMSES 850 top2 OT 7
Set TSP parameters (Transparent Slave Parameters) 8
Set heating curve of second heating circuit on controller 8
Systems/Applications 1–5 9
System 1 10
System 2 11
System 3 12
System 4 13
System 5 – comfort box 14
Switch chimney sweep function on/off 17
Operating hours counter 17
Connect USB/GSM modem 17
Error messages 18
Technical data 19
Service address/Hotline 20
22
