Grant Solar GS222020X - Terminal Connection; Terminal Connection Diagram

12
Installation
max. 12V
Caution
mains side
100-240VAC
Danger
D.1. - Terminal connection diagram
On the circuit board:
LTDC Version V3+V4:
VFS1 Grundfos Direct Sensor
VFS2 Grundfos Direct Sensor
CAN1 CAN Bus
CAN2 CAN Bus
S6
VFS2 VFS1
CAN CAN
V1
V2
+
S5
S4 S3 S2 S1
-
PELV
R3I
R3 R2 R1 L N
N
-
Low voltage max. 12VAC/DC
Terminal: Connection for:
S1 Temperature sensor 1
S2 Temperature sensor 2
S3 Temperature sensor 3
S4 Temperature sensor 4
S5 Temperature sensor 5
V1 0-10V / PWM signal output
e.g. for control of High Ef ciency
pumps
LTDC Version V3+V4:
V2 0-10V / PWM signal output
e.g. for control of High Ef ciency
pumps
S6 Temperature sensor 6
+ 12V power supply
Connection of sensor earth to the grey lower
terminal block.
The power supply of HE pumps with 0-10V
/ PWM pumps can be connected to the
corresponding relay (V1 -> R1, R2 -> V2), since
the relays are switched on and off with the
signal.
Mains voltage 100-240VAC 50-60Hz
Terminal: Connection for:
R1 Relay 1
R2 Relay 2
R3 Relay 3 (normally open)
R3I Relay 3 (normally closed)
L Netz Außenleiter L
N Netz Neutralleiter N
The neutral conductors are connected to the
lower blue terminals
The PE protective conductor must be
connected to the PE metal terminal block!