TEC Controller Heat Pump Single Stage Owner's Manual 125-5073 2014-05-01 Building Technologies
Table of Contents How To Use This Manual .................................................................................................. 4 Chapter 1 – Product Overview ......................................................................................... 6 Hardware Inputs .................................................................................................................. 6 Hardware Outputs ...................................................................................................
How To Use This Manual How To Use This Manual This manual is written for the owner and user of the Siemens TEC Heat Pump Controller Single Stage. It is designed to help you become familiar with the Siemens TEC and its applications. This section covers manual organization, manual conventions, symbols used in the manual, and other information that will help you use this manual.
How To Use This Manual Convention Examples This symbol signifies Notes. Notes provide additional information or helpful hints. Cross references to other information are For more information on creating flowcharts, see indicated with an arrow and the page Flowcharts [→92]. number, enclosed in brackets: [→92] Placeholders indicate text that can vary based on your selection. Placeholders are specified by italicized letters, and enclosed with brackets [ ]. Type A C D H [username] [field panel #].
Chapter 1 – Product Overview Hardware Inputs Chapter 1 – Product Overview The Siemens TEC Heat Pump Controller Single Stage is used in single-stage heat pump applications. It provides Direct Digital Control (DDC) for three 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.
Chapter 1 – Product Overview Hardware Outputs Hardware Outputs Analog None Digital Compressor Application 2070 Electric heat (optional) Application 2070 Reversing valve Application 2070 Application 2071 Damper actuator (floating control) (optional) Application 2070 Application 2071 Application 2072 Fan Application 2070 Application 2071 Application 2072 Compressor 1 Application 2071 Compressor 2 (optional); or stage 1 electric heat (optional) Application 2072 Stage 1 electric heat (optional)
Chapter 1 – Product Overview Communication Wiring Communication Wiring The controller connects to the field panel by means of a Floor Level Network (FLN) trunk. Communication wiring connects to the three screw terminals on the controller labeled “+” (positive), “-“ (negative), and “ ” (reference). Controller LED Indicators NOTE: The TX and RX LEDs indicate communication over the FLN.
Chapter 1 – Product Overview Temperature Sensors 1 through 127). The TX LED will start flashing as it attempts to communicate with other devices. Temperature Sensors Temperature sensors used with the Siemens TEC Heat Pump Controller Single Stage include an electronic room temperature sensor or an optional auxiliary temperature sensor. Room Temperature Sensor The room temperature sensor connects to the controller by means of a cable terminated at both ends with a six-conductor RJ-11 plug-in connector.
Chapter 1 – Product Overview Related Equipment Related Equipment Damper Actuator (floating control) (optional) Mixed Air or Auxiliary Temperature Sensor (optional) Relay Module Room Temperature Sensor Contact your local Siemens Industry representative for product numbers and more information. 10 Siemens Industry, Inc.
Chapter 2 – Applications Basic Operation Chapter 2 – Applications The Siemens TEC Heat Pump Controller Single Stage provides Direct Digital Control (DDC) technology for various compressor heat pump applications. Temperature control varies with the application. If present, mixed air temperature control a stage of electric heat can be provided. Basic Operation The Siemens TEC Heat Pump Controller Single Stage provides Direct Digital Control (DDC) technology for various compressor heat pump applications.
Chapter 2 – Applications Application 2071 Two Compressor Heat Pump with Reversing Valve and Mixed Air Control Application 2071 Two Compressor Heat Pump with Reversing Valve and Mixed Air Control In Application 2071, the controller controls a two compressor heat pump with a reversing valve. In place of the second compressor, this heat pump may also be equipped with electric heat for auxiliary heat. Mixed air control for ventilation and free cooling is also available. Application 2071 Control Diagram.
Chapter 2 – Applications Application 2072 Heating and Cooling Heat Pump with Internal Reversing Valve and Mixed Air Control Application 2072 Heating and Cooling Heat Pump with Internal Reversing Valve and Mixed Air Control In Application 2072, the controller controls a heating compressor for heating and a cooling compressor for cooling. The reversing valve is controlled internally by the heat pump.
Chapter 2 – Applications Application 2090 Heat Pump Slave Mode Application 2090 Heat Pump Slave Mode Using Auxiliary Points It is possible to have extra points available on a Siemens TEC Heat Pump Controller Single 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 field panel, they must be unbundled at the field panel. See Chapter 3 for point database information.
Chapter 3 – Point Database Chapter 3 – Point Database This chapter presents a description of the Siemens TEC Heat Pump Controller Single Stage database including point descriptors, point addresses, and a listing of applications in which each point is found. Descriptor Address1 Application Description CTLR ADDRESS 01 2070, 2071, 2072, 2090 Identifies the controller on the LAN trunk. APPLICATION 02 2070, 2071, 2072, 2090 Identification number of the program running in the controller.
Chapter 3 – Point Database Descriptor Address1 Application Description Valid input: YES or NO AUX TEMP 15 2070, 2071, 2072, 2090 Actual reading from a 100K Ω thermistor connected to the controller's AI 3 input. When a thermistor is connected at Al 3, DI 3 is not available. See DI 3. The physical input can not be used for both analog and digital input at the same time.
Chapter 3 – Point Database Descriptor Address1 Application Description heat or for compressor 2. If used for compressor 2, then CMP TOTL must be set to 2. DO 4 44 2090 Digital output 4 controls a 24 Vac load with an ON or OFF status. lf Motor 2 is enabled, DO 3 is coupled with DO 4 to control an actuator. HTG CMP 1 44 2072 Digital output used to control the heating compressor 1. REV VALVE 44 2070, 2071 CLG CMP 1 45 2072 Digital output used to control cooling compressor 1.
Chapter 3 – Point Database Descriptor Address1 Application Description enabled. DO DIR.REV 59 2070, 2071, 2072, 2090 Configuration setup code for DOs. Allows the DOs to be direct or reverse acting (enabled equals energized or disabled equals de-energized). CYCLE FAN 60 2070, 2071, 2072 YES indicates that the fan should cycle ON and OFF with the compressor during day mode. NO indicates that the fan should remain ON constantly in day mode.
Chapter 3 – Point Database Descriptor Address1 Application Description electric heat to turn ON. CMP ON 82 2070 Value, in percent, which the active temperature control loop output must exceed for the compressor to turn ON. Actual turn on is subject to the CMP1 MIN OFF time being expired. It is also the value, in percent, which HTG LOOPOUT must go below for the electric heat (ELEC HEAT) to turn OFF.
Chapter 3 – Point Database Descriptor Address1 Application Description reversing valve can switch modes. SWITCH DBAND 90 2070, 2071, 2072 Temperature range in degrees that is compared to the difference between CTL TEMP and CTL STPT. The difference must exceed this value for temperature control mode to change over. Changeover is also subject to the active temperature control loop output being below SWITCH LIMIT and SWITCH TIME being expired.
Chapter 4 – Basic Service and Maintenance Basic Service Information Chapter 4 – Basic Service and Maintenance This chapter describes basic service and maintenance measures you can take when using a TEC. You may want to contact your local Siemens Industry representative if a problem occurs or you have any questions about the controller. NOTE: When troubleshooting, record the problem and what actions were performed immediately before the problem occurred.
Chapter 4 – Basic Service and Maintenance Safety Features 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 unless overridden by a field panel. If one of the following conditions occurs, the controller will activate safety features present in its fail-safe mode. Sensor failure. Loss of power.
Glossary Glossary This glossary contains the collected terms and acronyms that are used in Siemens BACnet PTEC and TEC Controllers. For definitions of point database descriptors, see Chapter 3 - Point Database, in this manual. airflow Rate at which a volume of air moves through a duct. Usually expressed in cubic feet per minute (cfm) or liters per second (lps). algorithm Mathematical formula and control logic that uses varying inputs to calculate an output value. AVS Air Velocity Sensor.
Glossary Demand Control Ventilation A control algorithm that provides for the control or reduction of outdoor air intake below design rates when the actual occupancy of spaces served by the system is at less than design occupancy. DCV Demand Control Ventilation. DDC Direct Digital Control. Direct digital control The automated control of a condition or process by a digital device (computer). DO Digital Output. Physical output point that sends a two-state signal (ON/OFF, OPEN/CLOSED, YES/NO).
Glossary rather than the surrounding environment. In this use, heat pumps generally draw heat from the cooler external air or from the ground. HMI Human Machine Interface. Terminal and its interface program that allows you to communicate with a field panel or equipment controller. Occupancy sensor A control device that detects presence of people in a space by using infrared or ultrasonic technology.
Glossary Terminal Equipment Controller Siemens Industry, Inc. product family of equipment controllers (one is the Siemens TEC Heat Pump Controller Single Stage) that house the applications software used to control terminal units, such as heat pumps, VAV terminal boxes, fan coil units, unit ventilators, etc. UI Universal Input. Can be used as an AI or DI. An AI input is a point receiving a signal that represents a condition that has more than two states.
Index Index A F address descriptions, 15 FLN, 24 actuators, 9 algorithm, 23 application, slave mode point extension, 14 applications basic operation, 11 field panel, 6, 14 Floating Control, 24 Floor Level Network (FLN), 8 H hardware LEDs, 8 ordering notes, 7 relay module, 10 auxiliary points, using, 14 B temperature sensors, 9 Heat Pump product overview, 6 basic operation, 11 related equipment, 10 Basic Sanity Test (BST), 8 basic service information, 21 BST LED, 8 C L LED, 8 Light Emittin
Index S safety features, 22 service information, basic, 21 setpoint, 25 SI units, 25 slave mode, 25 stand-alone, 6 stand-alone control, 25 static discharge, 21 T temperature sensor, 9 temperature sensors auxiliary temperature sensor, 9 room temperature sensor, 9 RTS, 9 troubleshooting basic service information, 21 TX LED, 8 U unbundle, 14, 26 units, English, 24 28 Siemens Industry, Inc.
Issued by Siemens Industry, Inc. Building Technologies Division 1000 Deerfield Pkwy Buffalo Grove IL 60089 Tel. +1 847-215-1000 Document ID 125-5073 Edition 2014-05-01 © 2014 Copyright Siemens Industry, Inc. Technical specifications and availability subject to change without notice.
