Assortment / System Description

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Limitation of minimum burner on time and return temperature
Protective boiler startup. Boiler release, either automatically or manually
Flue gas measuring mode (boiler test mode, "Chimney sweep" function)
3 fault signal inputs, preconfigured for over-/underpressure and water shortage
in the boiler or in the hydraulic plant
Burner hours run counter and burner start counter
In addition to boiler sequence control and boiler temperature control (boilers 1…6),
the RMK770 provides the following functions:
Weather-compensated
heating circuit control
Weather-compensated pump
heating circuit
Y1
M1
B1
B7
B9
A5
B5
3132S37
R5
M1
B9
A5
3132S77
R5
A5 Room unit (optional)
B1 Flow sensor
B5 Room sensor (optional)
B7 Return sensor (optional, for maximum
limitation)
B9 Outside sensor
M1 Heating circuit pump
R5 Remote setpoint adjuster (optional)
Y1 Mixing valve
Adjustable setpoint for the room operating modes:
Comfort, Precomfort, Economy, and Protection
7-day program (6 switching points per day) and yearly program for holidays/
special days (16 periods of time)
Adjustable room influence
Optimum start and stop control
Boost heating and quick setback
Room model for room functions without room sensor
Automatic heating limit for demand-dependent control of heating system with
adjustable heating limits for Comfort and Economy mode
Automatic changeover to summer operation (heating off)
Maximum limitation of room temperature
Minimum and maximum limitation of flow temperature
Maximum limitation of return temperature
Limitation of rate of increase of flow temperature
Valve overrun and valve kick
Pump overrun and pump kick
Outside temperature-dependent frost protection for plant and building
Heating circuit connection to the main header or the precontrolled header
Acquisition and evaluation of heat requests (external setpoint, external DHW
request and frost protection via the KNX bus)
Demand-compensated main control via mixing valve (3-position or
DC 0….10 V), or via the system pump in the main flow
Minimum and maximum limitation of flow temperature
Maximum limitation of return temperature
Maintained return temperature without/with separate mixing valve
The RMK770 boiler sequence controller is supplied with basic type K. It represents
the basis for the free configuration of customized applications.
Heating circuit control
Precontrol
Basic type K