Overview Of Electrical Connections; Solar Circuit Pump - Viessmann VITOSOLIC 100 Installation And Service Instructions Manual

Installation sequence

Overview of electrical connections

A
S1 S2 S3
1 2 3 4 5 6
B
A Wiring chamber of the solar control
unit
B Sensor inputs
C PWM signal for the solar circuit
pump

Solar circuit pump

Possible pumps
Standard solar circuit pumps
Without individual With individual
speed control speed control
(with integral auxili-
ary capacitor)
"RPM" = 1 "RPM" = 0
36
PWM 145
GND +
9 10 11 12
C D
D KM BUS
E Fuse, 4.0 A (slow)
R1 Semiconductor relay (suitable for
R2 Electromechanical relay
High efficiency
pumps
"RPM" = 0
T 4 A
250 V
P = 2 VA
R1 AC 250 V 0,8 A
R2 AC 250 V 4(2) A
IP 20, l, T40
N R2 N R1 N L
?
13 14 15 16 17 18 19 20 21
speed control)
Pumps with PWM
input
Note
Use only solar
pumps, not heating
circuit pumps.
■ WILO pumps:
"RPM" = 2
■ GRUNDFOS
pumps:
"RPM" = 3
E
230 V
50 Hz