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3. Fundamentals
3.1. Key technical features
3.1.1. Plant types with regard to the heating circuit
3.1.2. Function blocks
3.2. Plant types
3.2.1. Plant type 1 – "Space heating with a mixing valve"
Siemens Building Technologies
Landis & Staefa Division
The RVL470 offers two key technical features:
• The controller has six plant types preprogrammed
• The settings are combined in the form of function blocks
In terms of the heating circuit, the following plant types are available:
•
Plant type 1 – "Space heating with a mixing valve"
•
Plant type 2 – "Space heating with a boiler"
•
Plant type 3 – "Space heating with district heat"
•
Plant type 4 – "Pre-control with a mixing valve"
•
Plant type 5 – "Pre-control with a boiler"
•
Plant type 6 – "Pre-control with district heat"
The following function blocks are available:
•
Function block "End-user 1"
•
Function block "End-user 2"
•
Function block "Plant type"
•
Function block "Space heating"
•
Function block "Three-position actuator for heating circuit"
•
Function block "Boiler"
•
Function block "Setpoint of return temperature limitation"
•
Function block "Settings for plant type 3"
•
Function block "Service functions and general settings"
•
Function block "Contact H2"
•
Function block "Contact H2 and general displays"
•
Function block "Locking functions"
For each function block, the required settings are available in the form of operating
lines. A description of the individual functions is given below, for each function block and
line.
The RVL470 has six types of plant ready programmed, whereby the functions are as-
signed to each type of plant, as required. When commissioning a plant, the respective
plant type must be selected.
B9
B7
Space heating with weather-compensated flow temperature control. Three-position
control through the heating zone's mixing valve. Outside temperature signal from own
outside sensor or data bus. With or without room temperature influence. Heating-up and
setback according to the heating program.
Basic Documentation RVL470
Fundamentals
A6/B5
CE1P2522E / 30.03.2000
5/68
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