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

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44
Plug
sXG
Terminals Function Explanation
225.1
M2
r
Heating circuit pump of the
heating circuit with mixer
M2/HC2 Connect a temperature limiter to restrict
the maximum temperature for underfloor
heating circuits (if installed) in series.
Connection values:
■ Output: 100 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
225.2
M2
Mixer motor control, heat-
ing circuit M2/HC2
Signal mixer CLOSED Connection values:
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 0.2(0.1) A
225.3
M2
Mixer motor control, heat-
ing circuit M2/HC2
Signal mixer OPEN Connection values:
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 0.2(0.1) A
Cross connect PCB
Set the required parameters during com-
missioning: See from page 69.
Signal and safety connections
Terminals
Function Explanation
F1 Fuse 6.3 A (slow) Note
Observe a total load of 1000 W for all
connected components.
X1 Earth conductor X1.
?
Terminals for earth conductor of all asso-
ciated system components
X2 Neutral conductor X2.N Terminals for neutral conductor of all as-
sociated system components
Installation sequence
Electrical connections, heat pump control unit
(cont.)
5516 436 GB