Viessmann Vitotronic 300 Installation And Service Instructions Manual page 17
Type gw5b, vitotronic 300, type gw5b weather-compensated, digital boiler control unit for boiler model cm2 - 400, 500, 620 and 620 tx
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Also See for Vitotronic 300:
- Installation and service instructions manual (164 pages) ,
- Operating instructions manual (73 pages) ,
- Technical data manual (8 pages)
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Installation Sequence
Vitotronic 300, GW5B Installation and Service
120V External Connection
(continued)
120V pumps with an amperage draw of <2FLA
A Din rail
B Pump
120V pumps with an amperage draw of >2FLA
Contactor specification 120VAC 1A
A Din rail
B Contactor/relay (field supplied)
C Pump
D Power supply w/disconnect and protection
240V pumps
Contactor specification 120VAC 1A
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
A Din rail
B Contactor/relay (field supplied)
C Pump
D Power supply w/disconnect and protection
17
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