Siemens BACNET 125-699, Owner'S Manual

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Siemens Building Technologies, Inc.
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Product Overview
Introduction
The Siemens BACnet Heat Pump Controller—Multi-Stage is used in multiple compressor
heat pump applications. lt provides Direct Digital Control (DDC) for two heat pump
applications. The controller can operate as an independent, stand-alone DDC room controller
or it can be networked with a field panel.
The controller provides all termination, input/output, system, and local communication
connections (Figure 1). The controller hardware consists of the controller with cover and
mounting bracket.
Table 1. Siemens BACnet Heat Pump Controller – Multi-Stage Applications.
Application
Number
Application Description
2583 Multiple Compressor with Reversing Valve and Mixed Air Control
2584 Multiple Heating and Cooling with Internal Reversing Valve
and Mixed Air Control
2590 Slave Mode
Ordering Notes
Siemens BACnet Heat Pump Controller – Multi-Stage 550-490