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

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36
Plug
sYA
Terminals Function Explanation
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 Connection values
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
■ Circulation pump for cyl-
inder heating
or
M r
■ 3-way diverter valve for
"Central heating/DHW
heating"
211.5
AC
3-way diverter valves for
heating water buffer cylin-
der bypass in the case of
the active cooling function Connection values
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect 3-way diverter valves parallel to
each other.
Plug
sYS
Terminals Function Explanation
212.2
A1
Heating circuit pump for
heating circuit without mixer
A1/HC1 ■ If a heating water buffer cylinder is in-
stalled, this pump will be installed in ad-
dition to the secondary pump.
■ Connect temperature limiter to restrict
the maximum temperature for under-
floor heating systems (if installed) in
series: See the following chapter.
Connection values:
■ Output: 100 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
212.3 DHW circulation pump Connection values:
■ Output: 50 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Installation sequence
Electrical connections, heat pump control unit
(cont.)
5516 436 GB