STIEBEL ELTRON LWA 203 - Page 25

25
Wiring diagram
Fig. 13
B1 = Vorlauuehler
B2 = Warmwasserfuehler
B3 = Ruecklauuehler
B3 = Warmwasserfuehler unten (SOL)
B4 = Abtaufuehler
B6 = Abluftfuehler
C1 = Betriebskondensator
E1 = Heizstab Warmwasser
E2 = Heizstab Heizung
F1 = STB - Heizung
F2 = STB - Warmwasser
F3 = Druckbegrenzer HD
F4 = Klixon Verdichter
F6 = Feinsicherung 6,3 A
H1 = Stoerungsmeldung HD
K1 = Relais Verdichter
K2 = Relais Heizstab Warmwasser
K3 = Relais Umschaltung WW/HZ
K4 = Relais Heizstufe 3 Heizung
K5 = Relais Heizstufe 2 Heizung
K6 = Relais Heizstufe 1 Heizung
K7 = Relais HD-Anzeige
M1 = Verdichter
M2 = Umwaelzpumpe
M3 = Abluftventilator
N1 = 65°C-Regler
S1 = Taster E-Heizstab
V1 = Magnetventil Heizung
V2 = Magnetventil Warmwasser
X1 = Netzanschluesse
X2 = Kleinspannung extern
X3 = Mischerkreis extern
Z1 = Funkentstoerlter
Z2 = Funkentstoerlter
K1
M2
K3
K4
1 2 1 2 3 4 5 6 7 8 9 10 1 2 1 2 1 2 3 1 2 3 4
5 4 3 2 1 2 1 10 9 8 7 6 5 4 3 2 1
K5
K6
V2V1
K3
11
8
7
6
5
3
2
4
10
9
Bus +
Bus -
Bus L
Bus H
Fernbedienung 3
Fernbedienung 1
Restwaermefuehler
Aussenfuehler
Anlegefuehler Mischer
T
Aussenfuehler
Restwaermefuehler
Anlegefuehler Mischer
Fernbedienung
5
6
7
8
Mischerkreispumpe L
Mischerventil zu
Mischerventil auf
K1
F3
p
F4
H1
M1
C
A/S P/R
C1
M
1
2 3 3
4
11 11
2
L
A A A A
N
B B B B
Mischerventil N
N
9
6
14
13
31
13
3
12
X11 X12 X13 X14 X15 X16
X8X9X10
PE
PE PE PE PE
X5
X18
X6
10
Solarpumpe L (SOL)
23,4 bara -1,5 bar
bl br
6 9
3
2
1
a
b
N L1 L2 L3 EVU N L
1/N/PE AC 50Hz 230V3/N/PE AC 50Hz 400V
X1
1,5KW
E1
F2
12
11 21
22
95°C -4K
1
1
X6
X7
X6
1
N1
2
63°C ±2K
K2
1
3
S1
1
2
K2
A
B
15
X4
X7
N
PE
L
M
230V-AC
3M
Drossel
4
X2
26_04_01_0121
LZM II
2
2
F1
2
1 3
4
75°C -8K
E2
2,9KW 2,2KW
1,5KW
K6K5K4
3 3 3
1 1 1
X7
1
1
Kollektorfuehler (SOL)
Kollektorfuehler (SOL)
1
Bruecke nur bei
LWA 303 / 303 SOL
12
X3
2
B1
2
B2
2
B3
2
B4
2
B6
X19
1 2 3 4 5 6
Minus1 PWM/lin
THD 300 / 300 SOL
br
brbl
bl
sw
bl
bl
sw
Drossel
Z2
Z1
Zentrales Lueftungsgeraet mit Waermepumpe und 3-stufiger
6,6 kW-Zusatzheizung
Alle mit grossen Zahlen
numerierten Klemmpunkte
liegen auf der Klemm-
leiste X3
K7
A
B
9
14
K7
3
2
1
2
1
F6
Residual heat sensor
Collector sensor (SOL)
Outside temperature
sensor
Mixer contact sensor
Remote control
Jumper only with
LWA 303 / 303 SOL
THD 300 / 300 SOL
Residual heat sensor
Collector sensor (SOL)
Outside temp. sensor
Mixer contact sensor
Remote control 1
Remote control 2
BUS H
BUS L
BUS –
BUS +
Mixing valve open
Mixing valve N
Mixing valve close
Mixer circuit pump
N
Solar circuit pump L (SOL)
All terminals numbered with large
figures are located on terminal
strip X3
choke
choke
B1 = Flow sensor
B2 = DHW sensor
B3 = Return sensor
B3 = DHW sensor (bottom) (SOL)
B4 = Defrost sensor
B6 = Expelled air sensor
C1 = Operating condenser
E1 = DHW heater rod
E2 = Central heating heater rod
F1 = High limit safety cut-out
– central heating
F2 = High limit safety cut-out – DHW
F3 = Pressure switch HP
F4 = Klixon compressor
F6 = Feinsicherung
H1 = Fault message HP
K1 = Compressor relay
K2 = DHW heater rod relay
K3 = DHW/HTG changeover relay
K4 = Heating stage 3 HTG relay
K5 = Heating stage 2 HTG relay
K6 = Heating stage 1 HTG relay
M1 = Compressor
M2 = Circulation pump
M3 = Extract fan
N1 = 65 °C controller
S1 = Electric pushbutton
V1 = HTG solenoid valve
V2 = DHW solenoid valve
X1 = Power supply terminals
X2 = External LV
X3 = External mixer circuit
Z1 = Suppression filter
Z2 = Suppression filter