Viessmann Vitocal 300-G Installation And Service Instructions Manual page 75

Electrical connections
Operating components 230 V~
Plug sYA
Terminals Function
211.1 Primary pump (heat pump
stage 1 or common primary
pump), well pump control
1.
211.2 Secondary pump (heat
pump stage 1)
1.
211.3 Instantaneous heating
water heater control,
stage 1
1.
r
(cont.)
Explanation
Connection values
■ Output: 200 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site.
In type BWC, the primary pump is con-
nected at the factory.
■ In systems without a heating water
buffer cylinder, no other heating circuit
pump is required (see terminal 212.2)
■ Connect temperature limiter as maxi-
mum temperature limiter for underfloor
heating circuit (if installed) in series
(see the following chapter)
Connection values
■ Output: 130 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Type BW: Connect on site.
Type BWC: Connected at the factory.
Connection values
■ Output: 10 W
■ Voltage: 230 V~
■ Max. switching current: 4(2) A
Connect on site.
Installation sequence
75