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Honeywell T7350 manual

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Table of contents for the manual

  • Page 1

    SYSTEM ENGINEERING ® U.S. Registered Trademark © 2004 Honeywell International Inc. All Rights Reserved 63-4368 T7350 Commercial Programmable Thermostat Contents Introduction ..... .............. ............ .............. .............. .............. .............. ........... .............. .. . .............. . 2 Device Description ...... ...[...]

  • Page 2

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 2 INTRODUCTION Device Description The T7350H is a L ON M ARK ® certified thermostat that provides networking capability in a L ON W OR KS ® system using a transformer-couple d Free T opology T ransceiver (FTT). See Fig. 1. The T7350H communicate s with many L ON M ARK ® devices including the follo[...]

  • Page 3

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 3 63-4368 Network Control Provided The T7350H communicate s with other network devices, or nodes, for sharing data such as local inputs. Through the network, a Command Display (S7760) is used to view or modify T7350H operational modes including: • Weekly Schedule. • Holiday Sched ule. • Room T emperat [...]

  • Page 4

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 4 Applicable Literature The following list of documents contains general information related to the T7350H Communicating Commerci al Thermostat s. T able 3. Applicable Literature ABBREVIATIONS AND DEFINITIONS Application —A specia l use Building Control function. Binding —The process of logically[...]

  • Page 5

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 5 63-4368 Network V ariables —A class of variables defined in Neuron C that allows communication over the L ON W ORKS ® network to other nodes on the network. An ou tput network variable in one node can be bound to a corre sponding input network variable(s) in other node(s). Ch anging the value of th e ou[...]

  • Page 6

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 6 Mounting Means: Mounts on subbase. Subbase Mounts On: W all: Using two 5/8 in. long #6-32 screws (included). Outlet Box: Using sheet metal screws. Throttling R ange for Modulating Outputs: Automatically adjusts based on heat/cool stages. Manually adjustable with PDA. Clock Accuracy (a t 77°F [25°[...]

  • Page 7

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 7 63-4368 Fig. 2. Dim ensions of thermos t at and subba se in in. (mm). Communications The T7350H provides networki ng capability in a L ON W ORKS ® system using a Free T opology T ransceiver (FTT) transformer- coupled communications port running at 78 kilobits per second (kbs). The transformer-coupled comm[...]

  • Page 8

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 8 L ON M ARK ® Functional Profile Fig. 3. T7350H L ON M ARK ® Sp ace Comfort Controller Rooftop Object (8504) with Node Object. nv28 nv26 nvoSpaceT emp SNVT_ temp_p nv27 nvoUnitStatus SNVT_hvac_status nvoEffectSetpt SNVT_temp_p Hardware Output Hardware Output Hardware Input Hardware Input SCC-Rooft[...]

  • Page 9

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 9 63-4368 NETWORK CONFIGURATIONS The T7350H can be configured to perform a variety of activities in which data is sent to and/or received from other nodes on the L ON W ORKS ® network. Information that can be shared with other network d evices includes: — Current year , month, da y , hour , minute, second[...]

  • Page 10

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 10 value will be used in the T7350H as the primary controlled variable. The local space temperature sensor of the T7350H is ignored until th e network sensor fails. • S pace Humidity Sh aring: If a valid humidity value is received at the T7350H S pace Humidity network variable input, that value wil[...]

  • Page 11

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 1 1 63-4368 Refer to the Light Commercial Building Solution System Communication Guide form 71-3123 and the E-Bus Wiring Guidelines, form 74-2 865 for a complete description of network topology rules. Prepar e Wiring Diagrams, for wiring details. Plan to configure each controller . Refer to the Excel L ON S [...]

  • Page 12

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 12 Cable Termination The FTT network segment requ ires termination for proper data transmission performance. Use a 209541B T ermination Module to connect two of the three termin ation module wires to the L ON W ORKS ® Bus terminals. Refer to L ON W ORKS ® Bus Wiring Guidelines form 74-2865 for de t[...]

  • Page 13

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 13 63-4368 Fig. 9. T ypical hookup of T7350H1009 in three-stage heat and three-st age cool conventional system with one transformer . Fig. 10. T ypical hookup of T7350H1009 with auxiliary transforme r . POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ENSURE TRANSFORMER IS SIZED TO[...]

  • Page 14

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 14 Fig. 1 1 . T ypical hookup of T7350 H1017 for system with two independ ent heat stages (one modulating), two independent cool stages (one modulating), and two transformers. Fig. 12. T ypical hookup of T7350H1017 for system with two independent heat stages (one modulating), two indepe ndent cool st[...]

  • Page 15

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 15 63-4368 General Considerations T able 8 lists wiring types, sizes and dist ances for the T7350 and Excel 10 products. The T7350 terminal strip accepts 18 through 22 AWG (0.82 to 0.34 sq. mm) wire. T able 8. Field Wiring Reference. NOTE: 1. The X, RH and RC terminals will accept 14 to 22 AWG . 14 and 16 A [...]

  • Page 16

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 16 T able 9. Honeywell Cable Det ails. Honeywell Part Number Size (A WG) Number of wires Jacket Plenum Rated Description AK3798 22 2 Y es No E-bus ca ble. AK3797 22 2 Y es Y es E-bus cable . AK3799 22 4 Y es Y es E-bus cable . AK4606ABE 22 2 Y es No Beige jacket. AK4628A WH 22 2 Y es Y es Whi te jack[...]

  • Page 17

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 17 63-4368 Step 5. Order Equipment After compiling a bill of materials through completion of the previous application steps, refer to T able 10, Ordering Informati on. T able 10. Ordering Information. Step 6. Configure T7350 Use Excel L ON S PEC ™ Software to configure the T7350H Thermostat for specific ap[...]

  • Page 18

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 18 Step 7. Troubleshooting T able 1 1. T roubleshooting Informatio n. Symptom Possible Caus e Action Display will not come on. Thermostat is not being powered. Check that X terminal is connected to the system transformer . Check for 24 V ac between X and RH terminals. If missing 24 V a c: • Check i[...]

  • Page 19

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 19 63-4368 Cooling will not come on. No power to the thermo stat. Check that X termi nal is connected to the system transformer . Check for 24 V ac between X and RH terminals. If missing 24 V ac: • Check if circuit breaker is tripped; if so, reset circuit breaker . • Check if system fuse is bl own; if so[...]

  • Page 20

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 20 APPENDIX A - NETWORK TOOLS & WORKSTATIONS T able 12. T7350H Operational Support. Network T ools & Workstations Summary of T7350H Operational Supp ort L ON S PEC ™ L ON S T ATION ™ W7760B - XL15B Cmd Display - S7760 CARE LNS Plugin Dat aMon Device Configuration X X X View & Modify W[...]

  • Page 21

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 21 63-4368 APPENDIX B - NETWORK ALARM REPORTING T able 13. T7350H Alar m Change of St ate Event. A T7350H alarm change of state event is reported by the manufacturer defin ed outpu t network variable nvoAlarmH. nvoAlarmH Field Description subnet The L ON W ORKS ® subnet number in the domain entry to whic h [...]

  • Page 22

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 22 T able 15. Identifying Five Most Recent T 7350 Ala rms. The five most recent T7350 alarms are identified in t he manu facturer defined output network variable nvoAlarmLog. nvoAlarmLo g Field Descriptio n alarm1 Alarm log: Mo st recent alarm. Alarm Codes 0: A T_NO_ALARM (po wer up value) 1: A T_INV[...]

  • Page 23

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 23 63-4368 APPENDIX C - NETWORK ERROR REPORTING T able 16. Repor ting T 7350H Errors. T 7350H errors are reported th rough the manufactur er defi ned output network vari able, nvoError . nvoError Fie ld Description errLoclS paceSensr Local space temperature sensor not working. 0: Sensor value is OK. (power u[...]

  • Page 24

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 24 nvoError Fie ld Description errSubBaseV erMisMatch Sub-base/cover firmware mismatch. 0: Sub-base and cover firmware are compatible. (power up value) 1: The firmware version in the sub-base is unab le to communicate correctly with the firmware version of the cover assembly . Th e cover assembly Pub[...]

  • Page 25

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 25 63-4368 APPENDIX D - NETWORK ACC ESS TO LOCAL SENSOR DATA APPENDIX E - SCHEDULING NETWORK DEVICES A T7350H can be used to time schedule the following Honeywell controllers: • Another T 7350H. • T7300/Q7300. • XL15C a pplication objects (Control loops/S tartS top loops). • XL10 controllers. A singl[...]

  • Page 26

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 26 APPENDIX G - NETWORK CONNECTIONS TO OTHER LCBS DEVICES T able 18. Network Connections to XL15A AP Inpu t s. T7350H Network V ariable Outputs can be used as inputs to XL15A application objects. XL15A Applicatio n Object Applic ation Input Source T7350H Network V ariable Network V ariable Field Anal[...]

  • Page 27

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 27 63-4368 XL15A Applicatio n Object Application Inp ut Source T7350H Network V ariable Network V ariable Field nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive DLC Override If nvoS paceT emp Demand Limit Contro l nvoEf fectSetpt nvoDischA[...]

  • Page 28

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 28 XL15A Applicatio n Object Application Inp ut Source T7350H Network V ariable Network V ariable Field nvoError errnviS paceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 R[...]

  • Page 29

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 29 63-4368 XL15A Applicatio n Object Applic ation Input Source T7350 Network V a riable Network V ariable Field nvoData2 RelayFan nvoData2 dehumidActive Control Loop M ainSensor nvoS p aceT emp nvoS p aceT emp ResetSensor nvoEffect Setpt nvoEf fectSetpt nvoDischAirT emp nvoDischAirT emp nvoT erminalLoad nvoT[...]

  • Page 30

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 30 T able 19. Network Conne ctions to XL15A AP Output s. T7350H Network V ari able Inputs can be connected to XL15 A application outputs. XL15A Application O bject Application O utput Destination T7350H Network V ariable Network V ariable Field Network Time Schedule Scheduled Device List nviOccSchedu[...]

  • Page 31

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 31 63-4368 XL15C Application Object Applicati on Input Source T7350H Network V ariable Network V ariable Field nvoData2 stagesActive Logic Loop DCAO Digital Input nvoAlarmS tatus CoverCommFail OR Digit al Inpu t nvoAlar mS tatus InvalidIOConfi g AND Digital Input nvoAla rmS tatus SensorFail nvoAlarmS tatus n[...]

  • Page 32

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 32 XL15C Applicatio n Object Appli cation Input Source T7350H Network V ariable Network V ariable Field nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errIOConfig nvoError errSubBaseT ype nvoError e[...]

  • Page 33

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 33 63-4368 S7760 - Command Display A network connected Command display can be con figured (by LonS pec) to implement the following T73 50H functions: View and Modify Schedules: • Occupied, Uno ccupied and S t andby setpoints 1 • weekly schedule • holiday sched ule NOTE: If a T7350H is connected to a wa[...]

  • Page 34

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 34 APPENDIX H - T7350H NE TWORK VARIABLE SUMMARY T able 21. T73 50H Network V ariable Summary . Nv Name L ON S PEC ™ Ref Name Class Description nciApplV er Application version CONFIG Application type: id entifies the current application numb er for this device given by a tool. 0: (Default). Increme[...]

  • Page 35

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 35 63-4368 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Na me Clas s Desc ription nciRcvHrtBt Controller Receive Time CONFIG Re ceive heartb eat time (seconds) for all failure detect heartbeat network variabl es in this node. 0: Disable failure (Default). 300: T ypical[...]

  • Page 36

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 36 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Name Class Description nviBypass Bypass In IN Remote time bypass input from usually from anoth er device. Bypass is a method to command unoccupied ov erride over the network from another controller. The other cont[...]

  • Page 37

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 37 63-4368 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Na me Clas s Desc ription nviManV alue Manual V alue In IN Manual override values for outputs: Relays: Y1, Y2, Y3, Aux, G , W1, W2, W3 Analog Outputs: Mc, Mh nviOccManCmd Occupancy Cmd In IN Manual occupancy is a [...]

  • Page 38

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 38 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Name Class Description nviOccSensor Occupancy Sensor In IN T here are 3 distin ct mode s of operation: local occupancy sensor , network occupancy sensor , or none. The network occupancy input is nviOccSensor . It [...]

  • Page 39

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 39 63-4368 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Na me Clas s Desc ription nvoAlarmH Alarm Out OUT Alarm sub net, node and type. Alarm subnet is the LonWorks sub net number in domain entry to which nvoAlarmH is bound. If nvoAlarmH is not bound reports domain ind[...]

  • Page 40

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 40 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Name Class Description nvoBypass Bypass Out OUT The T7350H uses nvoBypass to command bypass to other XL10 nodes. When the T7350 is in bypass, it commands nvoBypass. This is a one to many bound relationship. “Ma [...]

  • Page 41

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 41 63-4368 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Na me Clas s Desc ription nvoOccSchedule T ime Of Day Out OUT This output has cu rrent state, next st ate and tuncos (T ime Until Change of S tate). This output is typically bound to other controller(s) that need [...]

  • Page 42

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 42 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Name Class Description nvo S ta tus S ta tus OUT Status: Alarm notify disabled: 0: Alarm notification is turned on (power up value). 1: Alarm notificatio n via nvoAlarmH, nvoA larmLog, nvoUnitS tatus, and nvoS tat[...]

  • Page 43

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 43 63-4368 T able 21. T7350H Network V ariable Summary . (Continued) Nv Name L ON S PEC ™ Ref Na me Clas s Desc ription nvoUnitS t atus Unit S tatus OUT Unit S tatus: Percentage of cooling capability currently being supplied to the controlled sp ace. 163.84: Power up value. Fan turned on or off: 0: Fan no [...]

  • Page 44

    T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-4368 B.B. 1 1-04 www .honeywell.com Automation and Control Solutions Honeywell Internati onal Honeywell Europe S.A. Honeywell Latin American Honeywell I n t e r n at io n a l I n c . Honeywell Limited-Honeyw e ll Limitée Control Products 3 Avenue du Bourget Region 1985 Douglas Drive North 35 Dynamic Driv[...]