Viessmann VITOCAL 300-A, Инструкции по установке и обслуживанию для подрядчиков

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Central fault message
223.1
L1
230 V~, 0.5 A
N
223.2
A
A Terminals on extension PCB
Plug sXD
Terminals Function Explanation
224.4
r
2.
Instantaneous heating wa-
ter heater switching,
stage 2 Connection values:
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
See installation instructions for "instanta-
neous heating water heater" and "instan-
taneous heating water heater switching
module".
224.6 Connection values:
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect cylinder loading pump and 2-
way shut-off valve in parallel.
■ Cylinder loading pump
(DHW side)
and
M
■ 2-way shut-off valve
224.7 Connection values:
■ Output: 100 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
■ Circulation pump for
DHW reheating
or
■ Control of the immersion
heater (for connection,
see drawing in chapter
"Immersion heater")
Installation sequence
Electrical connections, heat pump control unit
(cont.)
5516 436 GB