Application

Sequence of Operation
Wiring Diagrams
12
Siemens Industry, Inc. Application Note, App 2032 140-1022
2015-08-07
Wiring Diagrams
NOTE:
The controller’s DOs control 24 Vac loads only. The maximum rating is 12 VA for
each DO. An external interposing relay is required for any of the following:
• VA requirements higher than the maximum
• 110 or 220 Vac requirements
• DC power requirements
• Separate transformers used to power the load
(for example, part number 540-147, Terminal Equipment Controller Relay Module)
Application 2032 – Constant Volume with Electric Reheat.