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Table of contents for the manual
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Siemens Building Technologies, Inc. i Siemens BACnet Heat Pump Controller – Multi- Stage Owner’s Manual 125-699 Rev. BA, July 2009[...]
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Rev. BA, July 2009 NOTICE The information contained within this document is subjec t to change w ithout notice and should not be construed as a commitment by Siemens Building Technologies, Inc. Siem ens Building Technologies, Inc. assumes no responsibility for any errors that may appear in this document. All software described in this document is f[...]
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Siemens Building Technologies, Inc. I Table of Contents How to Use This Manual ............................................................................................... III Manual Organi zation .................................................................................................. III Manual Conv entions ...........................[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual II Siemens Building Technologies, Inc. Compressor O peration .............................................................................................. 9 Fan Oper ation ............................................................................................................ [...]
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Siemens Building Technologies, Inc. III How to Use This Manual This manual is written for the owner and user of the Siemens Building Technologies, Inc. Heat Pump Controller—Multi-Stage, often referred to as controller for the remainder of this manual . This manual is designed to help you become familiar with the controller and its applications. T[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual IV Siemens Building Technologies, Inc. Manual Symbols The following table lists symbols that are us ed to draw your attention to important information. Notation Symbol Meaning CA UTION: Indicates that equipment damage or loss of data may occur if the user does not follow a procedur[...]
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Siemens Building Technologies, Inc. 1 1 Product Overview Introduction The Siemens BACnet Heat Pump Controller—Mu lti-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 networ[...]
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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 1 1 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 15 [...]
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Product Overview Siemens Building Technologies, Inc. 3 Digital A pplication • 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 • Damper actuator (float ing control)[...]
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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 (if present)* Indication DO LED 1–LED 8 Indic[...]
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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 Technol ogies, Inc. representative for product numbers and more information.[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 6 Siemens Building Technologies, Inc.[...]
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Siemens Building Technologies, Inc. 7 2 Applications Basic Operation The Siemens BACnet Heat Pump Controller—Mu lti-Stage provides Direct Digital Control (DDC) technology for multiple compressor heat pump applications. Temperature control varies with the application. If present, mixed ai r temperature control and up to three stages of electric he[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 8 Siemens Building Technologies, Inc. The mixed air loop controls only the mi xed air portion of the application. The mixed air damper motor can be either a spri ng return or floating control damper motor. • For a spring return damper, the mixed air loop will control the damper t[...]
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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 temperatur e and the demand for heating and cooling (as determined by the temperature control loops). Electric Reheat CAUTION: Verify that the equipme[...]
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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 heati ng and cooling compressors are kept off, the electric heat (if used) is kept off and the fan is kept off. In addition to the equipment being OFF, both cooling and heating loops[...]
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Applications Siemens Building Technologies, Inc. 11 Using Auxiliary Points lt is possible to have extra points availabl e on a Heat Pump Controller—Multi-Stage in addition to the ones used by the current applicati on that is running in the controller. If these extra points will be controlled by a field panel , they must be unbundled at the field [...]
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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 controlle r controls a multi-stage heat pump with a reversing valve controlled by the heat pump cont roller.[...]
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Applications Siemens Building Technologies, Inc. 13 4. In this application, the maximu m configurations are as follows: • The maximum of CMP TOTL = 3. • The maximum of EHTG STG CNT = 3. • The maximum of CMP TOTL plus EHTG STG CNT = 4. If these limits are exceeded, CMP TOTL will be set to 0 and EHTG STG CNT will be set to 0. These points will [...]
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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 controlle r controls one or two heating compressors for heating and one or two cooling compressors[...]
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Applications Siemens Building Technologies, Inc. 15 TEC2574CDR1 FA N ELECTRIC HEA T (OPTIONAL) COIL HEA TING / COOLING COIL W A TER SOURCE COMPRESSOR 2 REVERSING V AL VE* SUPPL Y AIR O.A. N.C. R.A. N.O. * CONTROLLED INTERNALL Y BY THE HEA T PUMP ** THE O.A. AND R.A. DAMPERS MUST BE MECHANICALL Y LINKED. R.A. DAMPER** (OPTIONAL) MIXED AIR TEMPERA TU[...]
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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 applic ation that comes up when power is first applied to the controller. Slave mode provides no control. lts purpose is to allow the operator to perform [...]
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Applications Siemens Building Technologies, Inc. 17[...]
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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 Application Description CTLR ADDRESS 01 2583, 2584[...]
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Point Database Siemens Building Technologies, Inc. 19 Description Address Application Description RM STPT MlN 11 2583, 2584 Minimum temperature setpoint in degrees that the controller can use from the setpoint dial. This overrides any temperature setpoint from the se tpoint dial that falls below this minimum. Valid entry range: 48° to 95°F (9° t[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 20 Siemens Building Technologies, Inc. Description Address Application Description Dl OVRD SW {19} 2583, 2584, 2590 Actual indication of the status of the override switch (not physically available on all temper ature sensor models) at the room temperature sensor. ON indicates that [...]
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Point Database Siemens Building Technologies, Inc. 21 Description Address Application Description DAY.NGT {29} 2583, 2584, 2590 Indicates the mode in which the controller is operating. Day temperature setpoints are used in day mode. Night temperature setpoints ar e used in night mode. This point is normally set by the field panel. CLG CMP1 ON 30 25[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 22 Siemens Building Technologies, Inc. Description Address Application Description DO 1 {41} 2583, 2584, 2590 Digital output 1 controls a 24 Vac load w ith an ON or OFF status. If Motor 1 is enabled, DO 1 is coupled with DO 2 to control an actuator. DO 2 {42} 2583, 2584, 2590 Digit[...]
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Point Database Siemens Building Technologies, Inc. 23 Description Address Application Description DMPR POS {49} 2583, 2584 Current position of the damper motor in percent of full travel. This value is calculated based on motor run time. MTR1 POS {49} 2590 Current pos ition of the damper motor in percent of full travel. This value is calculated base[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 24 Siemens Building Technologies, Inc. Description Address Application Description CYCLE FAN 60 2583, 2584 YES indicates that the fan should cycle ON and OFF w ith the compressor during day mode. NO indicates that the fan should remain ON constantly in day mode. Valid input: YES or[...]
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Point Database Siemens Building Technologies, Inc. 25 Description Address Application Description HTG LOOPOUT {80} 2583, 2584 Heating temperature control loop output value in percent. ELEC HEAT ON 81 2584 Value, in percent, that the heating Ioopout must exceed for the electric heat to turn ON. EHEAT 1 ON 81 2583 Value, in percent, t hat the heating[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 26 Siemens Building Technologies, Inc. Description Address Application Description SWITCH DBAND 90 2583, 2584 T emperature range in degrees that is compared to the difference between CTL TEMP and CTL STPT . The difference must exceed this va lue for temperature control mode to chan[...]
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Point Database Siemens Building Technologies, Inc. 27[...]
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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 troubles hooting. You may want to contact your local Siemens Building Technologies representative if[...]
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Troubleshooting Siemens Building Technologies, Inc. 29 Safety Features The controller board stores the controller's addr ess, applications, and point values. In the event of a power failure or a reset, these val ues are retrieved from the controller's permanent memory and are used by the controller unle ss overridden by a field panel. If [...]
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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 t hat represents a condition which has more than two states. For example, flow rate sensors (wat [...]
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Glossary Siemens Building Technologies, Inc. 31 control loop PID algorithm that is used to control an out put based on a setpoint and an input reading from a sensor. DDC Direct Digital Control. DI Digital Input. Physical input point that rece ives a two-state signal (ON/OFF, OPEN/CLOSED, YES/NO). DO Digital Output. Physical output point that s ends[...]
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Siemens BACnet Heat Pump Controller - Multi-Stage Owner’ s Manual 32 Siemens Building Technologies, Inc. lps Liters per Second. loopout The output of the control l oop expressed as a percentage. override switch Button on a room temperature sensor that an occupant can press to change the status of a room from unoccupied to occupied (or from night [...]
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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 — Electronic Ou tput) that house the applications[...]
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Siemens Building Technologies, Inc. 34 Index A actuator .............................................................. 4 address descrip tions ........................................ 18 AI (see analog input) ........................................ 30 airflo w ............................................................... 30 algorithm ...........[...]
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Index Siemens Building Technologies, Inc. 35 relay m odule ................................................... 5 hardware, inputs and outputs ............................. 2 heat pump controlle r—multi- stage ..................... 1 I inputs and outputs analog ............................................................. 2 digital ...............[...]