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Siemens
Heating and D.h.w. Controller RVL481
CE1P2541en
Building Technologies
3 Fundamentals
20.05.2008
•
Function block “Derivative action time d.h.w. heating via heat exchanger”
•
Function block “Multifunctional relay”
•
Function block “Legionella function"
•
Function block "Switching program 3"
•
Function block “Service functions and general settings”
•
Function block “Solar d.h.w. heating“
•
Function block “Locking functions”
For each function block, the required settings are available in the form of operating
lines. On the following pages, a description of the individual functions per block and line
is given.
3.2
Plant types
The RVL481 has 29 plant types preprogrammed; the functions required for each type of
plant are ready assigned. When commissioning the installation, the relevant plant type
must be selected.
Each plant type consists of a heating circuit and a d.h.w. circuit. When making use of all
possible or practical combinations, there is a total of 29 plant types available.
3.2.1 Selectable
combinations
Combinations Type of heating circuit
Type of d.h.w. heating
1–0 No
d.h.w.
1–1
Storage tank with charging pump
1–2
Storage tank with mixing group
1–4 Heat
exchanger
1–5
Heating circuit control with
mixing group
With electric immersion heater
2–0 No
d.h.w.
2–1
Storage tank with charging pump
2–2
Storage tank with mixing group
2–3 Storage
tank
with
changeover
valve
2–5
Heating circuit control with
boiler
With electric immersion heater
3–0 No
d.h.w.
3–1
Storage tank with charging pump
3–2
Storage tank with mixing group
3–3 Storage
tank
with
changeover
valve
3–4 Heat
exchanger
3–5
Heating circuit control with
heat exchanger
With electric immersion heater
4–0 No
d.h.w.
4–1
Storage tank with charging pump
4–2
Storage tank with mixing group
4–5
Precontrol with mixing
group
With electric immersion heater
5–0 No
d.h.w.
5–1
Storage tank with charging pump
5–2
Storage tank with mixing group
5–4 Heat
exchanger
5–5
Precontrol with boiler
With electric immersion heater
6–0 No
d.h.w.
6–1
Storage tank with charging pump
6–2
Storage tank with mixing group
6–5
Precontrol with heat ex-
changer
With electric immersion heater