Viessmann Vitocal 300 AWO-M-AC 301.A, Installation And Service Instructions Manual

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87
Central fault message
223.1
L1
230 V~, 0.5 A
N
223.2
A
A Terminals on extension PCB
Plug sXF
Terminals Function Explanation
224.4
r
2.
Control of instantaneous
heating water heater,
stage 2 Connection values:
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site (see installation instruc-
tions for instantaneous heating water
heater and control module).
224.6
M
■ Cylinder primary pump
(DHW side)
■ 2-way shut-off valve
Connect cylinder primary pump and 2-
way shut-off valve in parallel.
Connection values:
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site.
224.7 Circulation pump for DHW
reheating
or
control of the immersion
heater (for connection, see
the following diagram)
Connection values:
■ Output: 100 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site.
Installation sequence
Electrical connections in the heat pump control…
(cont.)
5692 875 GB
Installation