46
ENG
“heaterSteam” +0300075EN - rel. 1.2 - 29.09.2015
11.2 Wiring diagram UR002-UR004 single-phase 230 V
1G
2G
1H
2H
3H
1I
2I
3I
4I
5I
6I
7I
8I
4
J
3
J
2
J
1
J
4
3
2
1
8
7
6
5
3
2
1
6
5
4
3
2
1
6
5
4
2
1
4
3
D
C
B
A
I
J
E
MAIN BOARD
RELAY 1
H
G
CONTROL
MODULE
SERIAL
LINE
EXTERNAL
SIGNALS
ALARM
RELAY
1
E
2
E
3
E
4
E
5
E
6
E
1K
2K
3K
REMOTE
ON-OFF
K
POWER
SUPPLY
*
RSS2
+
PE
TB
F1
F2
K
1 2
2
1
C
F3
MS
F4
TR
K
BRIDGING CONNECTION
4D
1D
3D
3C
1C
4C
5B
4B
6B
1B
3B
4A
7A
3A
QC1
NTC
CS
LS
DP
FV
R1
STEAM
BOILER UNIT
ST
PTC1
6D
AB
M1 M2 S1 S2 T1 T2
THP
2B
LLC
5A
FA N
FSB
LN
TO DP
TO STEAM
VENTILATED
DISTRIBUTOR
X1 X2
TO WIRE DP
S1
Fig. 11.b
* To be carried out by the installer
TB Terminal Board
THP Motor Protector
QC1 Fast coupling
K Contactor
LLC Level gauge
ST Sensor terminal block
F1 - F2 Primary circuit fuses
F3 Drain pump safety fuse
F4 Secondary circuit fuse
FV Feed valve
PTC Heater temperature sensor
TR Transformer
DP Drain pump
LS High level electrodes
CS Conductivity meter electrodes
MS Manual switch
R Electrical resistor
SSR1-2 Solid state relay
FSB Fan control board
FAN Fan
NTC Water temperature sensor
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