Viessmann BW 351.A07, Инструкции по установке и обслуживанию для подрядчиков

Страница: 38 / 148

38
Terminals Function Explanation
211.2
1.
Secondary pump (heat
pump stage 1) ■ In systems without a heating water buf-
fer cylinder, no other heating circuit
pump is required (see terminal 212.2).
■ Connect a temperature limiter to restrict
the maximum temperature for under-
floor heating circuits (if installed) in ser-
ies.
Connection values
■ Output: 140 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Note
With type BWC, connected at the factory
211.3
r
1.
Instantaneous heating wa-
ter heater switching,
stage 1 Connection values
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
211.4
M
r
■ 3-way diverter valve for
"Central heating/DHW
heating"
Connection values
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Note
In type BWC, the circulation pump for cyl-
inder heating is connected at the factory.
■ Circulation pump for cyl-
inder heating
211.5
NC Switching the natural cool-
ing function NC/AC-Box or on-site components for
NC/AC cooling
Connection values
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Installation sequence
Electrical connection
(cont.)
5546 273 GB