Pump Connection - Viessmann VITOCROSSAL 300 Installation Instructions Manual
Vitocrossal 300
cu3a series 26 to 57
floor mounted, gas-fired condensing boiler with matrix gas burner and lambda pro control
for operation with natural gas and liquid propane gas
heating input 19 to 199 mbh
5.6 to 58 kw
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Also See for VITOCROSSAL 300:
- Service instructions manual (164 pages) ,
- Service instructions for contractors (148 pages) ,
- Service manual (108 pages)
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Control Connections
Connections
(continued)
20
Boiler pump/heating circuit A1 pump
21
DHW pump
28/20 DHW recirculation pump (see service manual)
36
Pump connection
Note: See wiring diagram on page 50 for connection
to the control base.
Note: Maximum pump draws 2 FLA each. All 120VAC
outputs must not exceed 6 FLA.
Power/pump connection interface
Vitocrossal 300 CU3A 26 to 57 Installation
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