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Siemens Building Technologies Basic Documentation RVL471 CE1P2524E
HVAC Products 3 Fundamentals 23.10.2002
• Function block “Multifunctional relay”
• Function block “Legionella function"
• Function block "Switching program 3"
• Function block “Service functions and general settings”
• 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 RVL471 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
&RPELQDWLRQV Type of heating circuit Type of d.h.w. heating
1–0
Space heating with mixing valve No d.h.w.
1–1
Space heating with mixing valve Storage tank with charging pump
1–2
Space heating with mixing valve Storage tank with mixing valve
1–4
Space heating with mixing valve Instantaneous d.h.w. heating via heat
exchanger
1–5
Space heating with mixing valve Only electric immersion heater
2–0
Space heating with boiler No d.h.w.
2–1
Space heating with boiler Storage tank with charging pump
2–2
Space heating with boiler Storage tank with mixing valve
2–3
Space heating with boiler Storage tank with diverting valve
2–5
Space heating with boiler Only electric immersion heater
3–0
Space heating with district heat No d.h.w.
3–1
Space heating with district heat storage tank with charging pump
3–2
Space heating with district heat Storage tank with mixing valve
3–3
Space heating with district heat Storage tank with diverting valve
3–4
Space heating with district heat Instantaneous d.h.w. heating via heat
exchanger
3–5
Space heating with district heat Only electric immersion heater
4–0
Precontrol with mixing valve No d.h.w.
4–1
Precontrol with mixing valve Storage tank with charging pump
4–2
Precontrol with mixing valve Storage tank with mixing valve
4–5
Precontrol with mixing valve Only electric immersion heater
5–0
Precontrol with boiler No d.h.w.
5–1
Precontrol with boiler Storage tank with charging pump
5–2
Precontrol with boiler Storage tank with mixing valve
5–4
Precontrol with boiler Instantaneous d.h.w. heating via heat
exchanger
5–5
Precontrol with boiler Only electric immersion heater
6–0
Precontrol with district heat No d.h.w.
6–1
Precontrol with district heat Storage tank with charging pump
6–2
Precontrol with district heat Storage tank with mixing valve
6–5
Precontrol with district heat Only electric immersion heater
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