Eev Pcb - Viessmann VITOTRONIC 200 Service Instructions Manual

PCBs and connection options
NC PCB
(cont.)
Plugs/ter- Function
minals
X3.3 Frost stat, primary circuit
X3.4
X4.1 Contact humidistat secon-
X4.2 dary circuit
lJC 3-way diverter valve
"heating/cooling, primary
circuit"
lJD 3-way diverter valve
"heating/cooling, secon-
dary circuit"

EEV PCB

For use see chapter "Overview of the
PCBs".
178
Explanation
Factory connection.
Connection values
■ Output: 230 W
■ Voltage: 230 V~
■ Max. switching current: 1 A
On-site connection
Connection values
■ Voltage: 24 V–
■ Max. switching current: 10 mA
Factory connection.
Factory connection.