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Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis & Staefa Division 19.04.2001
Terminal Terminals Connector Color
MD Ground room unit bus (PPS) AGP2S.02G blue
A7 Room unit bus HC2 (PPS)
- Not used AGP2S.04C yellow
B12 Flow sensor mixing valve HC2
M Ground sensors
B8 Flue gas sensor
B31/H2 D.h.w. sensor 2 / contact H2 AGP2S.04G grey
B1 Flow sensor mixing valve HC1
M Ground sensors
- Not used
H1 Changeover contact AGP2S.06A white
B2 Boiler sensor
B3 D.h.w. sensor 1 / control thermostat
M Ground sensors
- Not used
B9 Outside sensor
MD Ground PPS (RG1, BMU) AGP2S.02G blue
A6 PPS (RG1, BMU)
MB Ground bus (LPB) AGP2S.02M violet
DB Data bus (LPB)
Terminal Terminals Connector Color
Y6 Mixing valve HC2 CLOSED AGP3S.03K green
Y5 Mixing valve HC2 OPEN
F3 Phases Y5 and Y6
- Not used AGP3S.04F orange
Q6 Circulating pump mixing heating circuit 2
Q2 Circulating pump mixing heating circuit 1
F6 Phase Q2
Y2 Mixing valve CLOSED AGP3S.03K green
Y1 Mixing valve OPEN
F2 Phase Y1 and Y2
Q3/Y3 D.h.w. charging pump / d.h.w. diverting
valve
AGP3S.03B brown
- Not used
F1 Phase Q3/Y3
- Not used AGP3S.05D red
K5 Burner stage 2
F5 Phase burner stage 2
K4 Burner stage 1
F4 Phase burner stage 1
L Live AC 230 V (mains connection) AGP3S.02D black
N Neutral (mains connection)
Low voltage side
Mains voltage side
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