External Connections - Viessmann VITOTRONIC300 Installation And Service Instructions Manual

Installation Sequence
Vitotronic 300, GW2B Installation and Service

External Connections

120V pumps with an amperage draw of <2FLA
Legend
A DIN rail
B Pump
120V pumps with an amperage draw of >2FLA
Contactor specification 120VAC 1A
Legend
A DIN rail
B Contactor/relay (field supplied)
C Pump
D Power supply w/disconnect and protection
240V single phase pumps
Contactor specification 120VAC 1A
Legend
A DIN rail
B Contactor/relay (field supplied)
C Pump
D Power supply w/disconnect and protection
208/460/575V 3 phase pumps
Contactor specification 120VAC 1A
Legend
A DIN rail
B Contactor/relay (field supplied)
C Pump
D Power supply w/disconnect and protection
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