Siemens BACNET 125-699 - Manuals

Siemens Building Technologies, Inc. 1 1 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, stan...

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 2 Siemens Building Technologies, Inc. 24 V-AC RX TX BST RTS DO 1 NO C DO 2 NO C DO 3 NO C DO 4 NO C DO 5 NO C DO 6 NO C + - + - + - + - AI 3 + - AI 4 + - AO 3 AO 2 AO 1 DI 6 DI 2 AI 5 DO 8 NO C DO 7 NO C 1 2 3 4 5 6 7 8 9 10 11 12 13 1...

Product Overview Siemens Building Technologies, Inc. 3 Digital Application • Compressor 1 2583 • Compressor 2 (optional); or stage 3 electric heat (optional) 2583 • Compressor 3 (optional); or stage 2 electric heat (optional) 2583 • Stage 1 electric heat (optional) 2583, 2584 • Reversing valve 2583 ...

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 4 Siemens Building Technologies, Inc. Controller LED Indicators The controller has several Light Emitting Diode (LED) indicators. (Figure 1). Table 2 lists the LED types and what they indicate. Table 2. Controller LEDs. LED Type Label ...

Product Overview Siemens Building Technologies, Inc. 5 Related Equipment • Relay Module • Damper Actuator(s) • Mixed Air Temperature Sensor (optional) • Room Temperature Sensor Contact your local Siemens Building Technologies, Inc. representative for product numbers and more information.

Siemens Building Technologies, Inc. 7 2 Applications Basic Operation The Siemens BACnet Heat Pump Controller—Multi-Stage provides Direct Digital Control (DDC) technology for multiple compressor heat pump applications. Temperature control varies with the application. If present, mixed air temperature...

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 8 Siemens Building Technologies, Inc. The mixed air loop controls only the mixed air portion of the application. The mixed air damper motor can be either a spring return or floating control damper motor. • For a spring return damper, t...

Applications Siemens Building Technologies, Inc. 9 Heating and Cooling Switchover The heating/cooling switchover determines whether the controller is in heating or cooling mode by monitoring the room temperature and the demand for heating and cooling (as determined by the temperature control loops)....

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 10 Siemens Building Technologies, Inc. Power Failure Recovery Upon return from a power failure, the heating and cooling compressors are kept off, the electric heat (if used) is kept off and the fan is kept off. In addition to the equip...

Applications Siemens Building Technologies, Inc. 11 Using Auxiliary Points lt is possible to have extra points available on a Heat Pump Controller—Multi-Stage in addition to the ones used by the current application that is running in the controller. If these extra points will be controlled by a fiel...

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 12 Siemens Building Technologies, Inc. Application 2583: Multiple Compressor Heat Pump with Reversing Valve Control and Mixed Air Control In Application 2583 (Figure 5), the controller controls a multi-stage heat pump with a reversing ...

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 14 Siemens Building Technologies, Inc. Application 2584: Multiple Heating and Cooling Heat Pump with Mixed Air and Internal Reversing Valve Control ln Application 2584, (Figure 6) the controller controls one or two heating compressors ...

Siemens BACnet Heat Pump Controller - Multi-Stage Owner’s Manual 16 Siemens Building Technologies, Inc. Application 2590: BACnet Heat Pump Slave Mode Application 2590 is the default slave mode application that comes up when power is first applied to the controller. Slave mode provides no control. lt...

Siemens Building Technologies, Inc. 18 3 Point Database Overview This chapter presents a description of the Siemens BACnet Heat Pump Controller—Multi-Stage point database including point descriptors, point addresses, and a listing of applications in which each point is found. Description Address App...

Siemens Building Technologies, Inc. 28 4 Troubleshooting This chapter describes corrective measures you can take should you encounter a problem when using a Siemens BACnet Heat Pump Controller—Multi-Stage. You are not required to do any controller troubleshooting. You may want to contact your local ...

Troubleshooting Siemens Building Technologies, Inc. 29 Safety Features The controller board stores the controller's address, applications, and point values. In the event of a power failure or a reset, these values are retrieved from the controller's permanent memory and are used by the controller un...

Siemens Building Technologies, Inc. 30 Glossary Overview The glossary contains terms and acronyms that are used in this manual. For definitions of point database descriptors, see Chapter 3, Point Database . Al Analog Input. Point that receives a signal that represents a condition which has more than...

Glossary Siemens Building Technologies, Inc. 33 stand-alone control Type of control offered by a controller that is providing independent DDC control to a space. Equipment Controller Siemens Building Technologies, Inc. product family of equipment controllers (one is the BACnet Heat Pump Controller —...

Siemens Building Technologies, Inc. 34 Index A actuator .............................................................. 4 address descriptions ........................................ 18 AI (see analog input) ........................................ 30 airflow ...........................................