LTEC Heat Pump DDC Controller

Document No. 09 Rev., May, 00 LTEC Heat Pump DDC Controller Product Description These instructions explain how to install or replace a LTEC (LonMark Terminal Equipment Controller) HP (Heat Pump) DDC Controller (Figure ). There are two platforms available, reduced point and full point (Figure ); each platform handles various application sets. Each application set has a default input/outputwiring configuration, shown in the wiring diagrams. See Figure through Figure 8. The Heat Pump Controller applications are provided in the following configurations: Single stage compressor with or without reversing relay, outside air damper, and auxiliary or perimeter heat control. Multistage compressor with or without reversing relay, outside air damper, and auxiliary or perimeter heat control. In addition to the listed inputs above, each platform can accept a series 080 through 08 LTEC room temperature sensor () with optional digital display, occupancy override push button and set point adjustment. Warning/Caution Notations WARNING CAUTION Personal injury/loss of life may occur if a procedure is not performed as specified. Equipment damage, or loss of data may occur if the user does not follow procedure as specified. /" (mm) " (mm) LON000R Figure. LTEC Controller open cover. Product Numbers 8 /8" (.mm) 8 /" (0mm) V V V AI/ DI AI/ DI AI/ DI AI/ DI AI/ DI J J J J J J A0 A0 D0 Vac H D0 Vac H D0 Vac H D0 Vac H 8 D0 9 Vac H 0 D0 Vac H D0 Vac H D08 Vac H Vac H H Part Number Application Input/Output 08 LTEC Heat Pump IN, DO 09 LTEC Heat Pump IN, 8 DO, AO LO /8" (8mm) HI LON00R Figure. LTEC Controller. Page of 9

Document No. 09 Rev., May, 00 Required Tools Pencil ESD wrist strap Small flat blade screwdriver Medium flat blade screwdriver Wire stripper Medium duty electric drill ¼ in (mm) hex nut bit Network Management Tool Bus interface and cables Prerequisites Room temperature sensor (), if required, is installed Power source of Vac, 0 Hz Class power trunk is available and has a sufficient VA rating for the controller, sensors and actuators If required, the controller enclosure is installed Supply to the unit is OFF Installation WARNING: The power must be turned OFF prior to wiring the unit. The following sections are included in these instructions: Controller Mounting Power Wiring Bus Wiring Replacing a Controller Controller Mounting. Using the controller as a template, position the controller vertically and mark the mounting hole locations on the mounting surface (terminal box or mounting enclosure).. Using the # selftapping screws (included), fasten the controller to the terminal box or enclosure.. Connect the Network Trunk (NOT polarity sensitive) cable to terminals and on J, (Figure ). Network Management Tool Connection Room Temperature Sensor Connection Service Pin LON00R Network Trunk Analog or Digital Input V AI/ DI V AI/ DI AI/ DI AI/ DI V AI/ DI J J J able on reduced point controller boards. J J J Cover Release Tabs A0 A0 A0 D0 Vac H D0 Vac H D0 Vac H D0 Vac H 8 D0 9 Vac H 0 D0 Vac H D0 Vac H D08 Vac H Vac H H Figure. LTEC Wiring Designations. Mounting Holes () Analog Output Digital Output Vac Power. With primary power disconnected, connect vac power to terminal block J.. Connect the EGrnd terminal (E) to an earth ground. A proper ground source is required to protect the electronic circuits, for example, a cold water pipe, power panel ground (green wire) or other comparable ground sources.. Connect the input and output wiring for the appropriate HP (Heat Pump) application. Refer to the Terminal Designations section for complete information on LTEC wiring designations for 08 and 09 controllers. Page of 9

Document No. 09 Rev., May, 00. For input type selection, (digital, voltage, or current) see the jumper and connection information in Table. Each DO provides a normally open (NO) and Vac hot (H) terminal. Terminate both connections of a Vac load directly to the controller board. Floating control actuators require DOs and use wire connections. The Vac Common is switched through the Triac when the associated DO is energized. CAUTION: The controllers Digital Outputs (Dos) control Vac only. The maximum rating is VA for each DO. Use an interposing Vac relay for any of the following: VA requirements higher than the maximum 0 or 0 Vac or higher Control load requires DC power Separate transformers used to power the load Need for dry contacts 8. Plug the room temperature sensor () cable into the port on the left side of the controller. See Figure. 9. Remove one of the controller neuron ID labels (two part label located at the top of the controller board). Record this number as directed in a floor plan layout, job log or place the selfadhesive label on the outside of the controller case or inside the cover. This number is unique to the controller electronics. Power Wiring Each Controller requires a source of Vac, 0 Hz Class II power supply. The base rating of the controller and the sum of the sensor, actuators and relay connected dictates the VA rating. Bus Trunk wiring Bus wiring must be accomplished using approved cables only. These include unshielded and shielded (where specified) two conductor AWG Level IV cable. WARNING: Use the recommended LonWorks cable: AWG shielded or unshielded, Level IV per NEMA standards (not equivalent to EIA/TIA Level cable). Connect Air brand cable, / pair, stranded, unshielded, blue plenum jacketed, Level IV, Part Number WP00 or an approved equal for bus wiring. Bus wiring is NOT polarity sensitive. The LTEC Controllers use the FTT0 transceiver that allows free topology wiring. This includes Ttaps, stars, branches, loops as well as standard daisy chain. In all cases, max bus wire length, including each sensor cable, cannot exceed 00 meters (0 feet). For bus lengths that exceed 00 meters, (0 feet) a twoport or threeport repeater can be used (Part number 80 and 8 respectively). This will allow three separate bus lengths of 00 meters. See the LonTalk Two and Three Port Repeater installation instructions, (P/N: 00) for additional information and limitations. Each bus segment ( without repeater, with repeater) requires a pair of terminating resistors (Part number 8 9 packs of 00) that can be located together anywhere on the segment, at the field panel or repeater. Page of 9

Document No. 09 Rev., May, 00 Terminal Designations Figure shows the LTEC wiring designations and locations for both controllers. All inputs and outputs physical connections are preconfigured per application number selected. The wiring diagrams (Figure through Figure 8) are shown using the full point controllers (shaded terminals). Reduced point controllers should be used when the additional input/output points are not required. AI/DI AI/DI AI/DI AI/DI AI/DI LON008R V V V J J J J Figure. Terminal Designations. Input Ports LTECs have configurable, flexible input ports. Table lists each input port and indicates the input options available for that port. Some models have only the first four inputs, while others have five inputs. (Only VAV models have the integral flow sensor port). Table. LTEC Input Port Configuration Options. Input Type/Number Configurable Options Notes RJ input jack Temperature sensor 080 through 8 wall modules Setpoint adjustment Override button AI/DI 00K thermistor Temperature Input AI/DI 00K thermistor Temperature Input AI/DI Percent Input Temperature transmitter 00Vdc or 00/0 ma AI/DI AI/DI Percent Input Temperature transmitter Percent Input Temperature transmitter 00Vdc or 00/0 ma 00Vdc or 00/0 ma Integral Flow Sensor n/a VAV/CV only Page of 9

Document No. 09 Rev., May, 00 AI/DI AI/DI AI/DI AI/DI AI/DI LON009R LON000R LON00R LON00R LON0009R Table. Input Configuration and Jumper Settings. 00 K thermistor 00 Vdc input 00/ 0 ma input J J J J LON00R J LON00R J J LON00R LON00R T T J J LON00R LON00R 00Vdc 00 Vdc LON000R 00 Vdc J J LON000R J LON00R J J LON00R LON008R 0mA 0mA LON00R 00 ma (0 ma) J J LON009R J LON00R J J. Resistor, 99 Ω %, part number (8) for AI current input (00 ma).. See Figure for physical location of s and external terminal block connections.. The location of physical inputs must match a specific application wiring diagram; see Figure through Figure 8. Output Ports LTECs have configurable, flexible output ports. Wiring diagrams (Figure through Figure 8) indicate how these outputs are used in each application. Each application has preassigned output configurations. Some models have only the first six Digital outputs and no Analog outputs, while other have all eight Digital outputs and two Analog outputs. Replacing a Controller Replacement of a LTEC requires you to record, reenter, and/or update the initial point values from the old controller before replacing it. LTEC Network Connections (data sharing between controllers; Connections tab in Network Management Tool) () do not need to be recorded if using s Replace feature. will reapply the Connections after the Replace. However, if the old controller is to be deleted in, then all connections will need to be recorded first so they can be reentered after the new controller is added. Page of 9

Document No. 09 Rev., May, 00. To record Initial Values, before disconnecting the old controller, do one of the following: If the controller is communicating with the field panel, update the controller initial values at the field panel. If the controller does not communicate with the field panel, but does communicate with the, record the appropriate configuration points on Table at the end of these instructions. If the old controller is not communicating at all, record all data available in the Point Definition Report, or from the last valid initial values uploaded from the controller.. Disconnect power to the controller (remove the power connector, terminal block J).. Disconnect all input and output removable terminal blocks and insure they do not short out.. Remove the and network (RJ) connectors.. Remove the controller board by pressing the internal tabs and lifting the board out (or the complete controller, by removing the mounting screws).. Install the new controller board (or base and board).. Install jumpers. Ensure jumpers for AI/DI and AI/DI are configured to match the removed controller, see Table. Ensure AI/DI, AI/DI and AI/DI, external jumpers, remain in place or are reinstalled. 8. Remove one of the Neuron ID labels (two part label located at the top of the controller board). Record this number as directed; on a floor plan layout, job log or inside the cover. This number is unique to the controller electronics. It is imperative that the old neuron label be removed or covered. 9. Reconnect input and output terminal blocks. 0. Reconnect and network (RJ) connectors.. Reconnect power to controller, terminal block J.. Connect to the LTEC or L model MEC.. Run and use Replace to replace the old controller with new one. If the replacement controller was previously used elsewhere (not in factory packaging) the factory defaults must be reestablished as follows: Using, select the controller, select Application Configuration and apply the Set to Defaults command.. Apply the appropriate Configuration Template.. Restore initial values as follows: MMI: If a field panel update was performed, the LTECs initial values will be loaded automatically. : If a field panel update was NOT performed, set the initial values previously recorded in Table.. : Verify LTEC Connections are correct, update as needed.. Save the peak database (.pkd file) to flash/file as needed. Replacement installation is complete. Disposal As an aid to environmentally responsible disposal, the larger plastic components bear a recycle symbol. The controller should not be disposed of with domestic waste. The printed circuit board and plastic components should be disposed of separately in accordance with local regulations. Page of 9

Document No. 09 Rev., May, 00 LTEC HP Application Wiring Diagrams Room Sensor Network Trunk *Mixed Temp Sensor Spare Temp Sensor Fan Status DI *Low Temp Sensor DI Jumper OCC Sensor DI V V V AI/ DI AI/ DI AI/ DI J AI/ DI J AI/ DI J J J A0 A0 A0 D0 Vac H D0 Vac H D0 Vac H D0 Vac H 8 D0 9 Vac H 0 D0 Vac H D0 Vac H D08 Vac H OA Damper Act. 00 Vdc Perimeter Htg. Coil 00 Vdc Terminal Fan Relay Reversing Relay DO DX Stage Clg. Aux Heat Stage OA Damper Act. Perimeter Htg. Coil J Vac H H Vac Power Ground LON80WDR able on reduced point controller boards. *Required Sensor Figure. Application 80 HP with Reversing Relay and Auxiliary Heat (08 or 09). Room Sensor Network Trunk *Mixed Temp Sensor Spare Temp Sensor Fan Status DI *Low Temp Sensor DI Jumper OCC Sensor DI V V V AI/ DI AI/ DI AI/ DI J AI/ DI J AI/ DI J J J A0 A0 A0 D0 Vac H D0 Vac H D0 Vac H D0 Vac H 8 D0 9 Vac H 0 D0 Vac H D0 Vac H D08 Vac H OA Damper Act. 00 Vdc Perimeter Htg. Coil 00 Vdc Terminal Fan Relay DX Stage Clg. DX Stage Htg. Aux Heat Stage OA Damper Act. Perimeter Htg. Coil J Vac H H Vac Power Ground LON80WDR able on reduced point controller boards. *Required Sensor Figure. Application 80 HP without Reversing Relay, with Auxiliary Heat (08 or 09). Page of 9

Document No. 09 Rev., May, 00 Room Sensor Network Trunk *Mixed Temp Sensor Spare Temp Sensor Fan Status DI *Low Temp Sensor DI Jumper OCC Sensor DI V V V AI/ DI AI/ DI AI/ DI J AI/ DI J AI/ DI J J J A0 A0 A0 D0 Vac H D0 Vac H D0 Vac H D0 Vac H 8 D0 9 Vac H 0 D0 Vac H D0 Vac H D08 Vac H OA Damper Act. 00 Vdc Perimeter Htg. Coil 00 Vdc Terminal Fan Relay Reversing Relay DX Stage DX Stage OA Damper Act. Aux Heat Stage Aux Heat Stage J Vac H H Vac Power Ground LON80WDR able on reduced point controller boards. *Required Sensor Figure. Application 80 HP stage with Reversing Relay and Auxiliary Heat (08 or 09). Room Sensor Network Trunk *Mixed Temp Sensor Spare Temp Sensor Fan Status DI *Low Temp Sensor DI Jumper OCC Sensor DI V V V AI/ DI AI/ DI AI/ DI J AI/ DI J AI/ DI J J J A0 A0 A0 D0 Vac H D0 Vac H D0 Vac H D0 Vac H 8 D0 9 Vac H 0 D0 Vac H D0 Vac H D08 Vac H OA Damper Act. 00 Vdc Perimeter Htg. Coil 00 Vdc Terminal Fan Relay DX Stage Clg. DX Stage Clg. DX Stage Htg. DX Stage Htg. Aux Heat Stage OA Damper Actuator J Vac H H Vac Power Ground LON80WDR able on reduced point controller boards. *Required Sensor Figure 8. Application 80 HP stage without Reversing Relay, with Auxiliary Heat (08 or 09). Page 8 of 9

Document No. 09 Rev., May, 00 Table. Record of Controller Modified Initial Values. Point Number Descriptor Initial Value Point Number Descriptor Initial Value Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. 00 LonMark, LonWorks, and Neuron are trademarks of Echelon Corporation registered in the US and other countries. Landis and Staefa Division 000 Deerfield Parkway Buffalo Grove, IL 0089 U.S.A. Your feedback is important to us. If you have comments about this document, please send them to technical.editor@sbt.siemens.com Document No. 09 Printed in the U.S.A. Page 9 of 9