Viessmann VITOCAL 200-G Installation And Service Instructions Manual page 49

Electrical connections
High limit safety cut-out for heat
pump in conjunction with an external
heat source
X3.1
B
222.3
A
222.4
D
K1
X2.N
A Terminals on extension PCB
B Move jumper from X3.1 to 222.3
Plug sXF
Terminals Function
224.4 Instantaneous heating water
heater switching, stage 2
2.
r
224.7 Circulation pump for DHW re-
heating
or
Switching immersion heater
(cont.)
C Connection on the external heat
D High limit safety cut-out (max. 70
K1 Relay; sizing in accordance with the
C
Installation sequence
source at terminals for external
demand
°C) as heat pump protection
external heat source; observe
safety instructions
Explanation
Connection values
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site.
Connection values
■ Output: 100 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site.
49