Siemens RVL481 Basic Documentation page 18

Heating circuit
plant type 3
Heating circuit
plant type 4
Heating circuit
plant type 5
18/118
Siemens
Building Technologies
Heating circuit control with heat exchanger
Space heating with district heat connection, with weather-compensated flow tempera-
ture control acting on the valve in the primary return of the district heat connection.
Outside temperature signal from own sensor or data bus. With or without room influ-
ence. Heating up and setback according to the heating program.
Can be combined with d.h.w. types:
• with types 2, 4 / type 1 / type 3 via hydraulic connection at
• with type 5 without hydraulic connection
Y1
B7
2, 4
Precontrol with mixing group
Precontrol with demand-dependent control of the main flow temperature. 3-position
control acting on the mixing valve in the main flow.
Heat demand signal from data bus. No heating program.
Can be combined with d.h.w. types:
• with types 1 and 2 via hydraulic connection at
• with type 5 without hydraulic connection
B7
Precontrol with boiler control
Precontrol with demand-compensated control of the boiler temperature. 2-position
control acting on the burner.
Heat demand signal from data bus. No heating program.
Can be combined with d.h.w. types:
• with types 1, 2 and 4 via hydraulic connection at
• with type 5 without hydraulic connection
B7
Heating and D.h.w. Controller RVL481
3 Fundamentals
N1
A6/B5
B71
1 3
and
1, 2
1, 2, 4
and
and
CE1P2541en
20.05.2008