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Honeywell T7350 User's Manual

1. 15 Step 5 Order Eq iprrent ioter erede rere Cte ta need 17 Step 6 Configure T7350 sse enne nennen 17 Step 7 Troubleshooting sesssssssssessseseeen ener enne nennen 18 Appendix A Network Tools amp Workstations 20 Appendix B Network Alarm Reporting nn nen eee sni te sensn nenne snnt 21 Appendix C Network Error Reporting 2 5 redde ida teda ced da dr s d senda reris 23 Appendix D Network Access to Local Sensor Data mrrnnnnnvnnnnnnnnnvnnnnnnnnnvvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 25 Appendix E Scheduling Network Devices rrnnrnnnnnnnvnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 25 Appendix F Network Master Clock 1er ocius anno te pe ae ee 25 Appendix Network Connections to Other LCBS Devices rrrnnvavnnnnnnnnnvvvnnnnnnnvnvnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnn 26 Appendix T7350H Network Variable Summary LEE LEE nasa sinn 34 U S Registered Trademark 2004 Honeywell International Inc 63 4368 All Rights Reserved T7350 C
2. 43 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Class Description CONFIG LonMark network configuration parameters FTP CONFIG Configuration parameters implemented with the LonMark file transfer protocol IN Network variable inputs OUT Network variable outputs ZIRE and TUNGSTEN are trademarks of palmOne Inc HotSync and Palm OS are registered trademarks of PalmSource Inc Palm is a trademark of PalmSource Inc TRGPro is trademark of HandEra Inc LONMARK LONTALK and LonWorks are registered trademarks of Echelon Corporation LonSpec and LonStation are trademarks of Echelon Corporation Honeywell Automation and Control Solutions Honeywell International Honeywell Europe S A Honeywell International Inc Honeywell Limited Honeywell Limit e Control Products 3 Avenue du Bourget 1985 Douglas Drive North 35 Dynamic Drive Honeywell Building 1140 Brussels Golden Valley MN 55422 Scarborough Ontario 17 Changi Business Park Central 1 Belgium M1V 429 Singapore 486073 Printed in U S A on recycled 63 4368 11 04 paper containing at least 10 ES post consumer paper fibers Honeywell Latin American Region 480 Sawgrass Corporate Parkway Suite 200 Sunrise FL 33325 www honeywell com
3. All models are down selectable and can be configured to control fewer stages than the maximum allowed P Heat pump applications for these models have a maximum of two heat stages and two cool stages One extra stage of either heat or cool can be configured using the auxiliary relay T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Products Covered This System Engineering manual describes how to apply the T7350H Communicating Thermostat and related accessories to typical applications Devices include T7350H Commercial Communicating Thermostat Excel 15 W7760A or B Building Manager Excel 15 W7760C Plant Manager Excel 10 Controllers including W7750 W7751 W7752 W7753 W7762 Other products Q7760A Serial LonTalk Adapter Q7740A B FTT Repeaters 209541B FTT Termination Module See Table 2 for additional products Table 2 Additional Products Product Description Contactor 24 Vac coil DPDT 24vac Transformers Wall Modules Wall Module with active display Part Number Comments R8242A AT72D AT88A T7770A D T7771 4074EYD Wallplate for T7770 Wall Modules For covering an existing hole in a wall AK3798 Single pair network cable U L Type CMR Single pair network cable plenum rated U L Type CMP Double pair network cable plenum rated U L Type CMP AK3797 AK3799 63 4368 T7350 COMMERCIAL PR
4. I O CONNECTIONS LonWorks BUS T7770 JACK FOR OPERATOR TERMINAL M22493 Fig 5 Typical topology for T7350 devices in LonWorks network 11 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Cable Termination The FTT network segment requires termination for proper data transmission performance Use a 209541B Termination Module to connect two of the three termination module wires to the LonWorks Bus terminals Refer to LONWORKS Bus Wiring Guidelines form 74 2865 for details Singly Terminated Network Segment In a singly terminated topology segment only one termination is required and can be placed anywhere on the segment Singly terminated segments use the yellow and brown wires If the network topology requires a singly terminated termination module at a T7350H connect the singly terminated module wiring on the appropriate terminals as shown in Fig 6 seer OO 00000086 T5 T6 AS AUXIW3 Y4 w2 2 RI BROWN YELLOW PART NO 209541B TERMINATION MODULE QD C ORANGE M22494 Fig 6 Singly terminated LonWorks bus termination module Doubly Terminated Daisy Chain Network Segment In a doubly terminated daisy chained topology segment two terminations are required one at each end of the topology segment Doubly terminated segments use the orange and brown wires If the network topology requires a doubly terminated module at a T7350H T7350H is the first or last device on t
5. nvoStatus Status OUT Status Alarm notify disabled 0 Alarm notification is turned on power up value 1 Alarm notification via nvoAlarmH nvoAlarmLog nvoUnitStatus and nvoStatus has been turned off Alarm 0 no alarm power up value 1 there is an alarm Override the delays associated with automatic control 0 Delays turned on power up value 1 Delays turned off Useful for troubleshooting Invalid ID 0 The request was for a valid ID Power up value 1 The request was not for a valid ID Invalid Request 0 The request was for a valid operation Power up value 1 Invalid request for an operation Manual control 0 The function block is in automatic operation power up value 1 The function is in manual operation and outputs respond to nviManValue Status report Function block number being in status report 0 Node function block 1 Space comfort controller function block Programming Mode 0 Normal operating mode power up value 1 The node is in the programming the cover flash memory mode and is not automatically controlling temperature Report mask 0 Normal operation power up value 1 RQ REPORT MASK received The status bits that are set have been implemented nvoTerminalLoad Terminal Load Out OUT Terminal load percent Reports the demand for supply energy Positive numbers are cooling demand and negative numbers are heating demand 100 percent is full capacity Terminal lo
6. 29 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 19 Network Connections to XL15A AP Outputs T7350H Network Variable Inputs can be connected to XL15A application outputs XL15A Application Object Network Time Schedule Application Output Scheduled Device List Destination T7350H Network Variable nviOccSchedule Network Variable Field DLC External Load Assignment nviDIcShed Table 20 Network Connections to XL15C AP Inputs T7350H Network Variable Outputs can be used as inputs to XL15C application objects XL15C Application Object Math Functions Min Max Avg Sqrt Add Subt Mult Div Application Input Analog Input Source T7350H Network Variable nvoSpaceTemp Network Variable Field nvoEffectSetpt nvoDischAirTemp nvoTerminalLoad nvoSpaceRH nvoOutdoorTemp nvoData1 nvoData1 PercentCmdHeat PercentCmdCool nvoData1 HeatStgsOn nvoData1 nvoData1 CoolStgsOn BypassTime nvoOccSensor nvoEffectOccup nvoHeatCool nvoData2 stagesActive Math Functions Network Special SNVT temp p Math Functions Network Special SNVT lev percent nvoSpaceTemp nvoEffectSetpt nvoDischAirTemp nvoOutdoorTemp nvoSpaceRH nvoTerminalLoad Logic Loop ACDO Analog Input DCAO Analog Input nvoSpaceTemp nvoEffectSetpt nvoDischAirTemp nvoTerminalLoad nvo
7. 63 4368 4 LONSPEC that writes the binding information into the EEPROM memory of all the neuron s involved The binding information is saved in the network image of each neuron Building Manager A LONMARK9 certified device that can be used to monitor and control HVAC equipment and other miscellaneous loads in a distributed network Command Display A device that can be used to monitor data and change parameters of network connected devices CVAHU Excel 10 Constant Volume Air Handler Unit Controller Excel 105 family of application specific HVAC controllers such as the Excel 10 CVAHU and Excel 10 VAV HVAC Heating Ventilating and Air Conditioning l O Input Output LCBS Light Commercial Building Solution These systems are configured with the LONSPEC network tool and monitored with a Workstation such as LonStation amp Many LCBS networks include the W7760B amp C plant managers Routers including Q7751A are not supported by the LCBS network configuration LONSPEC tool LONSPEC ZL7760A A network connected tool which configures commissions calibrates and monitors the Honeywell Light Commercial Building Solution Q7300 T7350H Excel 10 and Excel 15 family of controllers LONSTATION A low cost easy to use Light Commercial Building Solution workstation that provides advanced building control capabilities for small to medium size buildings LONWORKS Network A data network based on neurons
8. Bus segment Each LonWorks Bus device comprises one node If more than 60 nodes are needed a Q7751A Router or Q7740 Repeater is necessary A router or repeater allows up to 120 controller nodes per network divided between two LONWORKS Bus segments Please note that routers are not supported by the LCBS LONSPECTM system configuration tool Refer to the Light Commercial Building Solution System Communication Guide form 71 3123 for LCBS details Refer to the E Bus Wiring Guidelines form 74 2865 for a complete description of network topology rules and maximum wire lengths A 209541B Termination Module may be required Refer to the Excel 10 FTT Termination Module Installation Instructions form 95 7554 Step 3 Layout Communications and Power Wiring LonWorks Bus Layout The communications LONWORKS Bus is a 78 kilobit network that uses transformer isolation and differential Manchester encoding The Free Topology Transceiver FTT LONWORKSO communications Bus supports polarity insensitive free topology wiring scheme refer to the E Bus Wiring Guidelines form 74 2865 for a complete description of LonWorks network topology rules Fig 5 shows T7350H devices connected in a typical free topology LonWorks network T7350H 7770 WITH LonWorks amp T7350H LonWorks BUS BUS ACCESS T7350H LonWorks BUS T7350H T7350H LonWorks BUS
9. communicating with each other using the LonTalk protocol Mandatory Mechanisms Objects Network Variables Mandatory mechanisms and network variables that are implemented in all the Excel 10 devices NamedObjects These objects are visible on the network as functional independent entities and are accessed by name Typical examples of NamedObjects are Controllers ControlLoops and LogicFunction blocks contained in devices such as the XL5a or XL 15b Network Management Node A LONWORKS node that is responsible for configuring the network installing the nodes binding the network variables between nodes and general network diagnostics Network Variables A class of variables defined in Neuron C that allows communication over the LONWORKS network to other nodes on the network An output network variable in one node can be bound to a corresponding input network variable s in other node s Changing the value of the output network variable in one node causes the new value to be automatically communicated to the bound input network variable s in other node s When an input network variable is updated a nv update occurs and the event is posted at the receiving node s so that the application program can take action based on the change A network management node for example XL15A or XL15C that explicitly reads and or writes the network variable can also poll network variables Network variables can contain one data field one or two b
10. nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 Relay Aux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive Control Loop SetPtOverride Digital Input nvoAlarmStatus CoverCommFail LoopDisable nvoAlarmStatus InvalidlOConfig Bypass Input nvoAlarmStatus SensorFail OccupancySensor nvoAlarmStatus networkCommFail nvoAlarmStatus InvalidSubBaseType nvoError errLoclSpaceSensr nvoError ErrRemtSpaceSensr nvoError ErrNetSpaceSensr nvoError ErrLoclHumSensr 31 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT T7350H Network Variable Outputs can be used as inputs to XL15C application objects Table 20 Network Connections to XL15C AP Inputs Continued XL15C Source T7350H Application Object Application Input Network Variable Network Variable Field nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errlOConfig nvoError errSubBaseType nvoError errSubBaseVerMisMatch nvoError errNviSpaceTemp nvoError errNviOccSchedule nvoError errNviOccSensor nvoError errnviApplicMode nvoError errnviOutdoorTemp nvoError errnviSpaceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nv
11. COMM FAIL 122 rtnCOVER SUBBASE MISMATCH 1 AT ALARM NOTIFY DISABLED Table 14 T7350 Current Alarm Status The T7350 current alarm status is reported by the manufacturer defined output network variable nvoAlarmStatus nvoAlarmStatus Field coverCommFail invalidlOConfig Description Communications between the cover and sub base 0 No alarm power up value 1 The communications between the thermostat cover assembly and the sub base has failed in one or both directions The data from the cover to the sub base has not been received for at least 90 seconds or data from the sub base is not updating the cover assembly Output configuration error 0 No alarm power up value 1 The number of outputs configured exceeds the capability of the sub base to support them Considers sub base type heat pump conventional application maxCoolStgs maxHeatStgs sensorFail Sensor failure 0 No alarm power up value 1 One of the analog sensors on the cover assembly has failed or is out of range high or low networkCommFail Network Communications Failure 0 No alarm power up value 1 One of the bound network input network variables is not being updated periodically This alarm may be caused by a failed node or a damaged LONWORKS NETWORK cable invidSubBaseTyp Sub base type error 0 No alarm power up value 1 The detected sub base type is not supported by the firmware version of the cove
12. Failure detect and mains power up value No change from previous value Value State Action 0 NA Fan is ON NA 0 or 1 Fan is ON 0 5 100 1 or Fan is ON when there is a call for greater heat cool no no Mains power up and fail detect value change change nviFilePos File Position In Supports LONMARK FTP file transfer Random Access file Pointer to first byte to be transferred and Number of bytes to transfer nviFileReq File Request In Supports LONMARK FTP file transfer Message request management is communicated through this input variable nvilnUse InUse In use number is used by a management node to indicate to all other management nodes that it is logged on 63 4368 36 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nviManValue LONSPEC Ref Name Manual Value In IN Class Description Manual override values for outputs Relays Y1 Y2 Aux W1 W2 W3 Analog Outputs Mc Mh nviOccManCmd Occupancy In Manual occupancy is a method to command the occupancy state from a network workstation Effective occupancy override works on last in wins basis That is the last occupancy override command received from any source determines the override state The workstation can command occupied unoccupied standby bypass or not active null nviOccManCmd is used to
13. OUT Effective room temperature control set point Celsius 327 67 Power up value nvoError nvoError OUT Device error status Refer to Appendix C Network Error Reporting for details nvoFileStat File Status Out OUT File transfer status nvoHeatCool Application Mode out OUT Effective operating mode 0 HVAC AUTO 1 HVAC HEAT heat or re heat HVAC COOL HVAC OFF power up value HVAC TEST manual mode or cover in factory test mode HVAC EMERG HEAT CON 63 4368 40 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nvoOccSchedule LONSPEC Ref Name Time Of Day Out Class OUT Description This output has current state next state and tuncos Time Until Change of State This output is typically bound to other controller s that need a schedule command This output is the combination of the local schedule and the network schedule command It doesn t include any bypass override or manual occupancy commands that affect this T7350H There is no TOD assignment table in the T7350H The T7350H allows a one to many binding of nvoOccSchedule This means one T7350H can command all of the XL10s on the subnet up to 119 controllers Current scheduled occupancy state 0 OC_OCCUPIED 1 OC_UNOCCUPIED 3 OC_STANDBY 1 OC_NUL power up value Next scheduled occupancy state 0 OC
14. REMOTE SENSOR SENSOR CONTACTOR 2 oo HEAT HEAT F RELAY 3f RELAY 2 RH RC AUX w Y1 COMPRESSOR CONTACTOR 3 Ps LONWORKSO HUMIDITY MOTION BUS SENSOR SENSOR EH 1 LONWORKSO BUS COMPRESSOR 2 ECONOMIZER CONTACTOR 1 LLL HOT AUXILIARY L1 TRANSFORMER HOT A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED VAN ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD A HEAT COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY INSTALLED JUMPER VAN USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS M22497 Fig 10 Typical hookup of T7350H1009 with auxiliary transformer 13 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT OUTDOOR MODULATING R AIR COOL SENSOR 4 20mA X 7770 REMOTE SENSOR DISCHARGE MODULATING R HEAT 20 Gr HUMIDITY MOTION SENSOR SENSOR Lonworks BUS COMPRESSOR CONTACTOR 1 AY A HOT L1 HEATING HOT TRANSFORMER COOLING TRANSFORMER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS REMOVE THE FACTORY INSTALLED JUMPER A USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS M22498 Fig 11 Typical hookup of T7350H1017 for system with two independent heat stages one modulating two independent cool stages one modulating and two transformers OUTDOOR AIR COOL SENSOR 4 20
15. manf specific UCPTschedule4 manf specific UCPTschedule5 manf specific UCPTschedule6 manf specific UCPTschedule7 manf specific UCPTholSched manf specific Hardware Input Defined Section nvoOccSensor SNVT_occupancy nvoData1 UNVT_data1 nvoData2 UNVT_data2 M22431 Fig 3 T7350H LONMARKO Space Comfort Controller Rooftop Object 8504 with Node Object 63 4368 8 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT 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 LoNWonks network Information that can be shared with other network devices includes Current year month day hour minute second System mode HEAT COOL AUTO OFF EM HEAT Current fan setting ON AUTO Space temperature Space relative humidity Discharge air temperature Outdoor air temperature Occupancy sensor status Terminal load Current setpoint Occupied Unoccupied schedule commands Current occupancy status Occupancy schedule including current occupancy state next state and time in minutes until next scheduled change of occupancy state Relay status heat cool stages and fan Alarm status Alarm log including the last five alarms Device Error status Bypass state multiple XL 10 devices follow the bypass operation of a master device A network configuration tool is used to configure the T7350H The
16. on all XL10s connected on the subnet Reports whether this device is in timed bypass of the scheduled occupancy state Used by other devices to also bypass the time of day schedule Value State Action 0 0 This device is not in bypass Power up value 1 100 This device is in bypass nvoData1 nvoData1 OUT Reports Manufacturer Specific Device Data including bypassTime coolStgsOn DaysLeftKeypadHoliday dischTemp effMode effOccCurrentState effSetPt fan heatStgsOn oDTemp percentCmd Cool percentCmdHeat spaceHumidity spaceTemp subBaseType sysMode terminalLoad nvoData2 nvoData2 OUT Reports Manufacturer Specific Device Data including auxRelay DALimit dehumidActive ESR holiday noAuxHeat1 noAuxHeat2 occSensor relayAux relayCool1 relayCool2 relayCool3 relayFan relayHeat1 relayHeat2 relayHeat3 remoteStPtOffset schedNextState scheduledState scheduledTuncos stagesActive T7350CommWorks temporarySetPt totalError nvoDischAirTemp Discharge Temperature Out OUT The current discharge air temperature Celsius The sensor is configured by nciConfig dischAirSensor A value of 327 67 means the sensor is not functioning correctly or is out of range 327 67 Power up value nvoEffectOccup Effective Occ Out OUT Current effective occupancy state 0 OC OCCUPIED power up value 1 OC UNOCCUPIED 2 OC BYPASS 3 OC STANDBY 1 OC NUL nvoEffectSetpt Effective Stpt Out
17. parameter changed by PDA or thermostat keyboard LONSPECTM and LONSTATIONT does not change this field 0 Default Time Stamp indicates the last change to the device application configuration The time stamp meets the ANSI C time stamp requirement specifying the number of seconds elapsed since midnight 0 00 00 January 1 1970 It is represented in the Intel Format If the T7350 keyboard or the PDA Config Tool updates any configuration parameters the time is incremented 0 Default Version Number identifies the version number of the application for this device If the T7350 keyboard or the PDA Config Tool updates any configuration parameters is incremented 0 Default nciBypassTime Bypass Time CONFIG Temporary Occupied Override duration in minutes 180 Default nciConfig NA FTP Thermostat configuration parameters CONFIG nciConfigPts NA FTP Thermostat operating setpoint values for the control algorithms CONFIG contained in the Thermostat application code nciDayLghtSav NA FTP Daylight saving start and end calendar schedule CONFIG nciDayScheduleO NA FTP Event time schedule for Sunday CONFIG nciDaySchedule1 NA FTP Event time schedule for Monday CONFIG nciDaySchedule2 NA FTP Event time schedule for Tuesday CONFIG nciDaySchedule3 NA FTP Event time schedule for Wednesday CONFIG nciDaySchedule4 FTP Event time schedule for Thursday CONFIG nciDaySchedule5 NA FTP Event tim
18. place the T7350H into manual occupancy note there is no timer associated with nviOccManCmo Manual occupancy input from a network device 0 OC OCCUPIED 1 OC UNOCCUPIED 2 OC BYPASS 3 OC STANDBY 1 OC NUL not connected mains power up Others same as OC NUL NOTE If nviOccManCmd is OC BYPASS and the bypass timer nvoData1 bypassTime times out then nviOccManCmd is set to OC NUL nviOccSchedule Occupancy Schedule In There are 2 distinct modes of operation local schedule and network schedule The local schedule mode causes the T7350H to change set points by using the scheduler in the T7350H The network schedule mode causes the T7350H to change set points from a network based scheduler The network schedule when valid overrides the local schedule The network schedule input is nviOccSchedule This input has current state next state and tuncos Time Until Next Change of State It is bound from another scheduler such as the XL15A or T7300 Q7300H The XL15B or a workstation can also write to it in an unbound relationship If the network schedule is not periodically updated the T7350H resumes local scheduling Periodically means at a rate greater than the fail detect time This rate is typically 55 seconds 300 seconds maximum The actual rate and maximum depend on the configured heartbeat and failure detect times Current scheduled occupancy state 0 OC OCCUPIED 1 OC UNOCCUPIED 3 OC STANDB
19. single T7350 can be configured to schedule all up to 119 of the compatible controllers connected to the same network This is accomplished by a one to many binding from the source T7350 to the destination controller or object T7350 nvoOccSchedule gt XL10 nviOccSchedule LONSPEC automatically implements these NV bindings based on the selection of Unscheduled Objects XL10 s Q7300 s T7300H s and XL15cAP s located on the LONSPEC T7350 Scheduling Screen 25 APPENDIX F NETWORK MASTER CLOCK T7350H can be used as the network time master for the following network connected Honeywell controllers Another T7350H T7300 Q7300 XL15A This is accomplished by a one to many binding from the source T7350H to the destination controller The following is an example NV binding of one T7350H as a time master to another T7350H nvoTime T7350H nviTimeSet LoNSPEC automatically implements these NV bindings based on the selection of Network Time Master check box on the T7350 General configuration screen The Day Light Saving Start and Stop Month on all time master recipients should be configured to None invalid This prevents erroneous time changes during temporary network outages 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT APPENDIX G NETWORK CONNECTIONS TO OTHER LCBS DEVICES Table 18 Network Connections to XL15A AP Inputs T7350H Network Variable Outputs can be used as inputs to XL15A applicati
20. value can be shared with other devices on the network Note that the T7350H does not accept a network discharge air temperature input The occupancy schedule used by a T7350H may reside locally in that device or remotely in another schedule device T7350H XL15a XL15b or T7300 Q7300 Local schedules can be created and modified using the T7350H 5 Destinati keypad direct connected PDA network connected ource configuration tool LONSPEC or Command Display T7350H nvoDischAirTemp XL15c nviDATemp External schedules can also be modified using the keypad of the master schedule device or with network connected configuration tool Workstation When T7350H receives scheduling information over the network Space Temperature Sharing If valid space temperature value is received at the T7350H Space Temperature network variable input that 9 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT value will be used in the T7350H as the primary controlled variable The local space temperature sensor of the T7350H is ignored until the network sensor fails Source Destination T7350H nvoSpaceTemp T7350H nviSpaceTemp or XL10 nvoSpaceTemp Space Humidity Sharing If a valid humidity value is received at the T7350H Space Humidity network variable input that value will be used in the T7350H as the humidity control variable The local space humidity sensor of the T7350H is ig
21. 0 34 sq mm AK3703x HS HC HP Discharge Air 18 to 22 AWG 1 pair 4606 1000 feet Temperature Sensor 0 82 to 0 34 sq mm AK4628AWH AS AK3702x AK3741A 744 757 Outdoor Air 18 AWG 0 82 sq mm 1 pair 757 744 500 feet Temperature Sensor AK3741A AK3702x OS Motion Sensor 18 to 22 AWG 1 pair AK4606ABE 1000 feet M 0 82 to 0 34 sq mm AK4628AWH AK3702x AK3741A 744 757 Wall Module 18 to 22 AWG Twisted pair wire is AK4606ABE 1000 feet connections 0 82 to 0 34 sq mm recommended for wire AK4628AWH T3 T7 runs longer than 100 AK3702x AK3741A Power Wiring to 18 to 147 AWG NEC Class II AK3702x AK3741A Limited by line loss Twisted pair stranded conductor nonshielded X RH RC 0 82 to 2 0 sq mm 140 F 60 C rating AK3744C 757 effects on power use heavier wire for AK3712x AK3754 consumption longer runs LonWorks Bus 22 AWG Nema Level IV AK3798 1 pair Refer to E bus Wiring Non Plenum 0 34 sq mm U L Type CMR Guidelines Users Twisted pair stranded Guide 74 2865 for conductor maximum length and nonshielded generic cable specifications LoNWoRks Bus 22 AWG Nema Level IV AK3797 1 pair Plenum Rated 0 34 sq mm U L Type CMP AK3799 2 pair NOTE interferes with the cover to subbase installation 15 1 The X RH and RC terminals will accept 14 to 22 AWG 14 and 16 AWG should be avoide
22. 0H is overridden by a network occupancy bypass command Bypass is a method to command unoccupied override over the network from another controller typically a T7350H or XL10 The source controller manages the bypass timing Source Destination T7350H nvoBypass T7350H nviBypass or XL10 nvoBypass XL 15a nvoBypass i XL 15c nvoBypass i Manual occupancy Provides a method to command the occupancy state from a network workstation Effective occupancy override works on a last in wins basis That is the last occupancy override command received from any source determines the override state The workstation can command occupied unoccupied standby bypass or not active null There are several ways to return the device to normal schedule operation 1 Power failure reset at the T7350H 2 Workstation issues a not active null network com mand to T7350H nviOccManCmd 3 User activates Temporary Occupied button on the local keyboard This can be followed by a Run Sched ule local command 4 If manual occupancy is commanded to bypass and the bypass timer times out Source Destination Workstation T7350H nviOccManCmd Command Display XL15b APPLICATION STEPS Overview The application steps shown in Table 7 are guidelines for configuring the T7350H in a LonWorks Bus network and explain the network role of the T7350H Table 7 Application Steps Step Descrip
23. 1 wires when installing T7350H models If this is not possible use a minimum of 4 in 102 mm separation between split ferrite cores Fair Rite 0443164151 www fair rite com to ensure compliance with Class B limits does not apply to Class A limits See Fig 8 to apply ferrite cores to LONWORKS Bus input and output Step 4 Prepare Wiring Diagrams Fig 9 through 12 show T7350 terminal arrangements and provide detailed wiring diagrams Reference these diagrams to prepare the site specific job drawings WIRES TO T7300H COMMUNICATING SUBBASE WIRES TO ALL INPUTS AND OUTPUTS WIRES TO ALL INPUTS AND OUTPUTS WIRES TO T7300H M22496 COMMUNICATING SUBBASE Fig 8 Ferrite core wires from T7350H to LONWORKS inputs and outputs T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT OUTDOOR AIR COMPRESSOR T7770 REMOTE SENSOR SENSOR ECONOMIZER CONTACTOR 2 DISCHARGE SENSOR Em 3 ER ER 2 COMPRESSOR CONTACTOR 3 LonWorks BUS LonWorks BUS A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD A HEAT COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY INSTALLED JUMPER VAN USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS M22499 Fig 9 Typical hookup of T7350H1009 in three stage heat and three stage cool conventional system with one transformer OUTDOOR AIR COMPRESSOR T7770
24. Honeywell 17350 Commercial Programmable Thermostat SYSTEM ENGINEERING Contents Introduction 2 22 25 42 cessed 2 e enn 2 Device Descnption eee 2 Control Application 2 onere eren ase ber eo eti eene dd pesa etna en PE ad oap E 2 Network Control Provided 3 Models suse 3 Products Covered 3 Applicable Literature oii re treten id 4 Abbreviations and Definitions oce en ee nd ric aec ca o E 4 Performance Specifications entente 5 Communications ER EE EE 7 LONMARK Functional Profile sescenti 8 Network GonfIgUratlOFis 2 2 iesus Lunge su sus Ce una 9 Application Steps 4 10 SNE FEE 10 Step 1 Plan the System 11 Step 2 Determine Required Network Devices 11 Step 3 Layout Communications and Power Wiring 11 LONWORKS Bus Elo MC S 11 Cable Termination 12 Wiring Details 12 Step 4 Prepare Wiring Diagrams 12 General Considerations
25. OGRAMMABLE THERMOSTAT Applicable Literature The following list of documents contains general information related to the T7350H Communicating Commercial Thermostats Table 3 Applicable Literature Form No Title 63 1299 T7350 Commercial Programmable Thermostat Spec Data 62 0195 T7350 Commercial Programmable Thermostat Installation Instructions 63 2605 T7350 Commercial Programmable Thermostat Product Data 74 2976 Excel LONSPEC ZL7760A Specification Data 74 2937 Excel LONSPEC ZL7760A User s Guide 74 3123 Light Commercial Building Solution System Communication Guide 74 2697 T7770A B C D E F G Wall Module Specification Data 95 7538 T7770A B C D E F G Wall Module Installation Instructions 63 2617 T7771 Wall Module Product Data 74 2972 57760 Command Display Specification Data 74 2858 Q7740A B FTT Repeater Specification Data 95 7555 Q7740A B FTT Repeater Installation Instructions 74 2954 Q7760A SLTA 10 Serial LonTalk Adapter Specification Data 95 7511 Q7760A SLTA 10 Serial LonTalk Adapter Installation Instructions 95 7554 209541B Termination Module Installation Instructions ABBREVIATIONS AND DEFINITIONS Application A special use Building Control function Binding The process of logically connecting network variables in one node to network variable s in other node s Binding is performed by network management Tool such as
26. OMMERCIAL PROGRAMMABLE THERMOSTAT INTRODUCTION Device Description The T7350H is a LoNMARK certified thermostat that provides networking capability in a LONWORKSO system using transformer coupled Free Topology Transceiver FTT See Fig 1 The T7350H communicates with many LONMARK devices including the following Other T7350H Communicating Commercial Thermostat devices T7300F Q7300H Commercial Thermostat Communicating Subbase Excel 15 57760 Command Display Excel 10 W7750A B C Constant Volume Air Handler Unit CVAHU Controller Excel 15 W7760A B C Building amp Plant Managers Excel 10 W7751B D F H J Variable Air Volume Terminal Unit Controllers Excel 10 W7752D E F G Fan Coil Unitcontrollers Excel 10 W7753A Unit Ventilator Controller Excel 10 W7762A B Hydronic Controllers Excel 10 W7763C D E Chilled Ceiling Controllers BUILDING MANAGER NOTEBOOK PC Control Application The T7350H programmable communicating Thermostat controls commercial single zone heating ventilating and air conditioning HVAC equipment through staged and modulating outputs The T7350H consists of a two piece assembly with a thermostat cover and subbase The thermostat cover includes the keypad and display for 7 day programming Calendar programming is available through a direct connect PDA Configuration Tool or netwo
27. Q7740B FTT network 4 way repeater TG511 TG512 Universal Versaguard Thermostat guards 2 3 16 56 6304 171 po m m 4 1 2 SUBBASE 2 3 8 60 3 1 4 83 6 9 16 166 42 42 M22432 Fig 2 Dimensions of thermostat and subbase in in mm T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Communications The T7350H provides networking capability in a LonWorks system using a Free Topology Transceiver FTT transformer coupled communications port running at 78 kilobits per second kbs The transformer coupled communications interface offers a much higher degree of common mode noise rejection while ensuring dc isolation LonWorks FTT networks are very flexible and convenient to install and maintain but it is imperative that the network layout be carefully planned and accurate documentation created and maintained This aids in compliance verification and future expansion of the network It also minimizes unknown or inaccurate wire run lengths node to node device to device distances node counts total wire length inaccurate repeater router locations and misplaced or missing terminations LoNWORKS networks be configured in a variety of ways refer to the E Bus FTT Network Wiring Guidelines form 74 2865 for a complete description of network topology rules and maximum network wire length If longer runs are required add a Q7740A 2 way or Q7740B 4 way repeater to exten
28. RAMMABLE THERMOSTAT RIO Excel 10 Remote Input Output device RTC Real Time Clock Schedule The structure that defines the occupancy states and the time of the changes between these states In the case of the T7350 schedules are organized around a eight day weekly structure including an extra day for designated holidays Holidays are scheduled by yearly calendar events SGPU Significant Event Notification and Guaranteed Periodic Update SGPUC Significant Event Notification and Guaranteed Periodic Update with Change Field SLTA Serial LonTalk Adapter Adapts the transformer coupled LonTalk messages to the RS 232 Serial Port SNVT Standard Network Variable Type SCPT Standard Configuration Parameter Type XL15A W 7760A Honeywell building level controller XL15B W 7760B Honeywell building level controller XL15C W7760C Honeywell plant level controller Performance Specifications IMPORTANT The specifications given in this publication do not include normal manufacturing tolerances Therefore this unit might not exactly match listed specifications This product is tested and calibrated under closely controlled conditions minor performance differences can be expected if those conditions are changed Models See Table 4 Dimensions See Fig 2 Finish color Trident White Batteries No batteries required Table 4 T7350 Thermostat Features H a Maximum Stag
29. SpaceRH nvoOutdoorTemp nvoData1 PercentCmdHeat nvoData1 nvoData1 PercentCmdCool HeatStgsOn nvoData1 CoolStgsOn nvoData1 BypassTime nvoOccSensor nvoEffectOccup nvoHeatCool 63 4368 30 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 20 Network Connections to XL15C AP Inputs Continued T7350H Network Variable Outputs can be used as inputs to XL15C application objects XL15C Source T7350H Application Object Application Input Network Variable Network Variable Field nvoData2 stagesActive Logic Loop DCAO Digital Input nvoAlarmStatus CoverCommFail OR Digital Input nvoAlarmStatus InvalidlOConfig AND Digital Input nvoAlarmStatus SensorFail nvoAlarmStatus networkCommFail nvoAlarmStatus InvalidSubBaseType nvoError errLoclSpaceSensr nvoError ErrRemtSpaceSensr nvoError ErrNetSpaceSensr nvoError ErrLoclHumSensr nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errlOConfig nvoError errSubBaseType nvoError errSubBaseVerMisMatch nvoError errNviSpaceTemp nvoError errNviOccSchedule nvoError errNviOccSensor nvoError errnviApplicMode nvoError errnviOutdoorTemp nvoError errnviSpaceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3
30. Workstations and Configuration Tools are used to view and modify additional T7350 operational modes Command Fan operating mode On Auto Command Application mode Auto Off Heating Cooling By using network messaging the T7350H may share the following local inputs with other T7350 T7300 Q7300 XL15 or XL10 network connected devices Room Humidity and Temperature Outdoor Air Temperature Occupancy Sensor Unoccupied Bypass User Input Network messaging also supports distribution of local user commands and operational states from a single T7350H That is network connected T7350H and XL10 devices can be configured to follow the local user commands and states from a single master T7350H These local T7350 commands include the following Application mode Auto Off Heating Cooling Occupancy Occupied Unoccupied Bypass Standby Bypass unoccupied override Setpoint Time synchronization from a T7350H designated as network master clock Master Time Scheduling of Occupied Unoccupied and Standby states MODELS Table 1 T7350 Communicating Thermostat Models Maximum Stages Model Applications Heat Cool Features T7350H1009 Conventional 3 2 3 4 Humidity Occupancy Or Outdoor Discharge Air Heat Pump Capability T7350H1017 Modulating 2 modulating 2 Humidity Occupancy relay Outdoor Discharge Air Capability 4 20 mA output 2 10 Vdc with 500 ohm resistor
31. Y Others same as OC NUL 1 OC NUL mains power up and fail detect value Next scheduled occupancy state 0 OC OCCUPIED 1 OC UNOCCUPIED 3 STANDBY Others same as OC NUL 1 OC NUL mains power up and fail detect value Time in minutes until next scheduled change of occupancy state 0 mains power up and fail detect value 37 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nviOccSensor LONSPEC Ref Name Occupancy Sensor In IN Class Description There are 3 distinct modes of operation local occupancy sensor network occupancy sensor or none The network occupancy input is nviOccSensor It is bound from another sensor or controller with occupancy status Occupancy sensor input from a network device 0 OC OCCUPIED 1 OC UNOCCUPIED 1 NUL not connected mains power up and fail detect value Others same as OC NUL NOTE If nviOccSensor is not invalid OC NUL nviOccSensor is used as the occupancy sensor even if another sensor or no sensor is configured nviOutdoorTemp Outdoor Temperature In Outdoor temperature input from a network device Ignored unless nciConfig oDAirSensor specifies a network configuration 327 67 means to ignore comODTemp 327 67 mains power up and failure detect value NOTE If nviOutdoorTemp is not invalid 327 67 nviOutdoor Temp is used as the outdoor temperatur
32. _OCCUPIED power up value 1 OC_UNOCCUPIED 3 OC_STANDBY 1 OC_NUL power up value Time in minutes until next scheduled change of occupancy state 2880 Means there is not a next change of occupancy state or it is longer than 2 days from now Power up value nvoOccSensor Occupancy Sensor Out OUT Status of occupancy sensor 0 OC_OCCUPIED 1 OC_UNOCCUPIED 1 OC_NUL not configured and power up value nvoOutdoorTemp Outdoor Temperature Out OUT The current outdoor temperature Celsius The sensor source is specified by nciConfig oDAirSensor A value of 327 67 means the sensor is not functioning correctly or is out of range 327 67 Power up value nvoPgm Program Out OUT Cover assembly flash memory programming data nvoSpaceRH Space Humidity Out OUT The current space humidity percent The sensor source is specified by nciConfig humiditySensor A value of 163 84 means the sensor is not functioning correctly or is out of range 163 84 Power up value nvoSpaceTemp Space Temperature Out OUT The current space temperature Celsius The sensor source is specified by nciConfig spaceSensor A value 327 67 means the sensor is not functioning correctly or is out of range 327 67 power up value 41 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name LONSPEC Ref Name Class Description
33. ads greater than 100 percent or less than 100 percent indicate that the equipment is not able to supply the required heating or cooling energy The valid range is between 163 and minus 163 percent Terminal load is used by supervisory level control applications to reset Boiler or Chiller discharge water temperatures 163 84 Power up condition nvoTime Time Out OUT Current year month day hour minute second The T7350H can be a time master to other T7350Hs XL15As and Q7300s 63 4368 42 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name LONSPEC Ref Name Class Description nvoUnitStatus Unit Status OUT Unit Status Percentage of cooling capability currently being supplied to the controlled space 163 84 Power up value Fan turned on or off 0 Fan not running 100 Fan running 163 84 power up value Percentage of auxiliary heating capability currently being supplied to the controlled space Applies to heat pump application only 163 84 Power up value Alarm report 0 No alarms reported in the unit power up value 1 One or more alarms reported in the unit 1 The Alarms have been suppressed by alarm notified disabled command Effective operating mode 0 HVAC_AUTO power up value 1 HVAC_HEAT HVAC COOL HVAC OFF power up value HVAC TEST manual mode or cover in factory test mode HVAC EMERG HEAT
34. cation Input Source T7350H Network Variable Network Variable Field nvoError errnviSpaceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive Control Loop LoopDisable nvoAlarmStatus CoverCommFail nvoAlarmStatus InvalidlOConfig nvoAlarmStatus SensorFail nvoAlarmStatus networkCommFail nvoAlarmStatus InvalidSubBaseType nvoError errLoclSpaceSensr nvoError ErrRemtSpaceSensr nvoError ErrNetSpaceSensr nvoError ErrLoclHumSensr nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errlOConfig nvoError errSubBaseType nvoError errSubBaseVerMisMatch nvoError errNviSpaceTemp nvoError errNviOccSchedule nvoError errNviOccSensor nvoError errnviApplicMode nvoError errnviOutdoorTemp nvoError errnviSpaceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 63 4368 28 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 18 Network Connections to XL15A AP Inputs Continued T7350H Network Variable Outputs can be used a
35. cators dots next to the system indicator are displayed With no display of stage indicators no call for cool heat is yet given For the modulating T7350H1017 only Check the information screens MODHEAT or MODCOOL percentages of zero and 100 indicate an extreme signal from the given terminal Wait one minute after seeing the on indicator and then check the registers Heating or cooling equipment is not operating Verify operation of heating or cooling equipment in self test 19 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT APPENDIX A NETWORK TOOLS amp WORKSTATIONS Table 12 T7350H Operational Support Network Tools amp Workstations Summary of T7350H Operational Support Device Configuration LONSPEC LONSTATION W7760B XL15B Cmd Display 57760 LNS Plugin DataMon View amp Modify Weekly Schedule View amp Modify Holiday Schedule Data Monitoring Command Outputs to Manual Value Override System Delays x gt lt gt lt Room Temperature Calibration Command Occupancy Override Command Fan Operation On Auto Command System Mode off auto heat cool View amp Modify Temperature Setpoints Report T7350 alarm data X X X Network Time Scheduler for T7350 Devices Generat
36. ction and is out of range or disconnected errRemtSpaceSensr Remote space temperature sensor not working 0 Sensor value is OK power up value 1 Sensor is configured to function and is out of range or disconnected errNetSpaceSensr Network space temperature sensor not working 0 Sensor value is OK power up value 1 Sensor is configured by the thermostat to function but is not being updated by either the bound network sensor or by the subbase faulty subbase errLoclHumSensr Local Humidity sensor not working 0 Sensor value is OK power up value 1 Sensor is configured to function and is out of range or disconnected errRemtHumSensr Remote Humidity sensor not working 0 Sensor value is OK power up value 1 Sensor is configured to function and is out of range or disconnected errNetHumSensr Network Humidity sensor not working 0 Sensor value is OK power up value 1 Sensor is configured by the thermostat to function but is not being updated by either the bound network sensor or by the subbase faulty subbase errRemtOdSensr Remote Outdoor air sensor not working 0 Sensor value is OK power up value 1 Sensor is configured to function and is out of range or disconnected errNetOdSensr Network Outdoor air sensor not working 0 Sensor value is OK power up value 1 Sensor is configured by the thermostat to function but is not being updated by either the bound network sensor or by
37. d and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviApplicMode nviApplicMode network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviOutdoorTemp nviOutdoorTemp network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviSpaceRH nviSpaceRH network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviBypass nviBypass network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviDIcShed nviDIcShed Demand Limit Control Shed signal network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure 63 4368 24 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT APPENDIX D NETWORK ACCESS TO LOCAL SENSOR DATA Table 17 T7350H Reports Local Sensor Data The T7350H reports local sensor data using the following o
38. d since the stiff cable 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 9 Honeywell Cable Details Honeywell Part Number Size AWG Number of wires Jacket Plenum Rated Description AK3798 22 2 Yes No E bus cable AK3797 22 2 Yes Yes E bus cable AK3799 22 4 Yes Yes E bus cable AK4606ABE 22 2 Yes No Beige jacket AK4628AWH 22 2 Yes Yes White jacket AK3702x 18 2 No No AK3741A 18 2 Yes No AK3744C 18 2 Yes Yes Red jacket AK3757C 18 2 Yes Yes White jacket AK3703x 18 3 No No AK3724 18 3 Yes No Tan jacket AK3746C 18 3 Yes Yes Tan jacket AK3726 18 5 Yes No Tan jacket AK3712x 16 2 No No 754 14 2 63 4368 16 Step 5 Order Equipment After compiling bill of materials through completion of the previous application steps refer to Table 10 Ordering Information T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 10 Ordering Information Part Number Product Description T7350H1009 Communicating Thermostat with three heating and three cooling digital outputs Comments Optional heat pump control Isolated auxiliary digital output T7350H1017 Communicating Thermostat with two modulating outputs one heating and one cooling digital output Isolated auxiliary digital output T7771A Remote Temperature Sensor Pushbutton setpoint adjustment with LED indicators Occupied un
39. d the LONWORKS Bus length Q7751A routers are not supported on LCBS LONSPECTM configured systems Approved cable types for LonWorks Bus communications wiring are Level IV 22 AWG 0 34 sq mm plenum or non plenum rated unshielded twisted pair solid or stranded conductor wire Refer to Table 2 for a list of Honeywell network cable part numbers Other Echelon approved cable may also be used Run communications wiring in a conduit if needed with non switched 24 Vac or sensor wiring The Free Topo logy Transceiver FTT communications LONWORKS Bus supports a polarity insensitive free topology wiring scheme that in turn supports star loop and or bus wiring 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT LONMaRK Functional Profile Hardware Output Mandatory Network Variables nviRequest SNVT obj request nviTimeSet SNVT time stamp nvoStatus SNVT obj status nvoFileStat SNVT file status Optional nvirllere Dm P Network Variables nviFilePos SNVT file pos Configuration Properties nc1 nciDeviceName UCPTdevName manf specific nc2 nciApplVer manf specific nvilnUse UNVT inUse nviPgm pgmin nroT7350Ver UNVT version nroPgmVer nvoPgm UNVT pgmOut nvoTime SNVT time stamp nvoAlarmH UNVT alarm nvoAlarmStatus UNVT alarmStatu nvoAlarmLog UNVT alarmLog nvoError UNVT error Manufactu
40. dashes anda T7350 is set for remote sensing and sensor is missing or circuit is degree sign all systems shut down either open or shorted Temperature Upper or lower temperature limits Check the temperature setpoints settings will not were reached Heating limits are 40 to 90 F 7 to 31 C change Cooling limits are 45 to 99 F 9 to 37 Occupied setpoint temperature range stops were configured Using a PDA or LONSPEC check setpoint stops If necessary reconfigure the stop s Keypad is locked When a locked key is pressed LOCKED appears momentarily on the LCD Use PDA or LoNSPEC Set Display to unlock keypad Press both Run Schedule and Copy then change keypad lock level Room temperature is out of control Heat will not come on Remote temperature sensing is not working No power to the thermostat Check all remote sensors Check that X terminal is connected to the system transformer Check for 24 Vac between X and RH terminals If missing 24 Vac e Check if circuit breaker is tripped if so reset circuit breaker Check if system fuse is blown if so replace fuse Checkifthe HVAC equipment power switch is in the Off position if so set to the On position Check wiring between thermostat and HVAC equipment Replace broken wires and tighten loose connections If 24 Vac is present proceed with troubleshooting Thermostat minimum off time is activated Wait
41. e 0 No alarm power up value 1 The communications between the thermostat cover assembly and the sub base has failed in one or both directions The data from the cover to the sub base has not been received for at least 90 seconds or data from the sub base is not updating the cover assembly Output configuration error 0 No alarm power up value 1 The number of outputs configured exceeds the capability of the sub base to support them Considers sub base type heat pump conventional application maxCoolStgs maxHeatStgs Sub base type error 0 No alarm power up value 1 The sub base is not a valid sub base type for the firmware in the cover assembly Network Communications Failure 0 No alarm power up value 1 One of the bound network input variables is not being updated periodically This alarm may be caused by a failed node or a damaged LonWorks network cable Sensor failure 0 No alarm power up value 1 One of the analog sensors on the cover assembly has failed or is out of range high or low 39 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nvoBypass LONSPEC Ref Name Bypass Out Class OUT Description 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 Many means one T7350H can command bypass
42. e Trend amp Log files with T7350 data User defined T7350 analog amp digital alarms Update T7350 Time Clock Set T7350 as network Time Master View T7350 Cover Firmware Version Update T7350 Cover Firmware View T7350H SubBase Firmware Version Update T7350H SubBase Firmware x x x 63 4368 20 APPENDIX B T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT NETWORK ALARM REPORTING Table 13 T7350H Alarm Change of State Event A T7350H alarm change of state event is reported by the manufacturer defined output network variable nvoAlarmH nvoAlarmH Field subnet Description The LoNWoRks subnet number in the domain entry to which nvoAlarmH is bound If nvoAlarmH is not bound it reports domain index O 0 Invalid subnet power up value 1 255 Subnet number node The LoNWorks node number in the domain entry to which nvoAlarmH is bound If nvoAlarmH is not bound it reports domain index 0 0 Invalid entry power up value 1 127 Node number type The alarm type being issued 0 AT NO ALARM power up value 1 AT INVALID SUBBASE TYPE 2 AT NETWORK COMM FAIL 3 AT SENSOR FAIL 4 AT INVALID IO CONFIG 5 AT COVER COMM FAIL 6 AT COVER SUBBASE MISMATCH Return to Normal Codes 127 rtnINVALID SUBBASE TYPE 126 rtnNETWORK COMM FAIL 125 AT rtnSENSOR FAIL 124 AT rtnlINVALID IO CONFIG 123 rinCOVER
43. e even if another sensor or no sensor is configured nviPgm Program In Memory address and data being sent to cover assembly flash memory nviRequest Request Input variable for managing network requests for status nviSetpoint Setpoint In Desired space temperature Celsius set by remote network device 327 67 means to ignore nviSetPoint 327 67 mains power up value nviSpaceRH Space Humidity In Space humidity input percent from a network device Ignored unless nciConfig humiditySensor specifies a network configuration 163 83 mains power up and failure detect value NOTE If nviSpaceRH is not invalid 163 83 nviSpaceRH is used as the space relative humidity even if another sen Sor or no sensor is configured nviSpaceTemp Space Temperature In When configured for a network sensor and periodically updated the network space temperature sensor will override both the local and remote sensors Space temperature input Celsius from a network device Values less than 2 2 will be clipped to 2 2 Values greater than 60 will be clipped to 60 327 67 means to ignore nviSpaceTemp 327 67 mains power up and failure detect value NOTE If nviSpaceTemp is not invalid 327 67 nviSpaceTemp is used as the space temperature even if another sensor or no sensor is configured nviTimeSet 63 4368 Time In Set current month day year hour minute second Time synchron
44. e schedule for Friday CONFIG nciDaySchedule6 NA FTP Event time schedule for Saturday CONFIG nciDaySchedule7 NA FTP Event time schedule for designated Holiday CONFIG neiDeviceName Device Name CONFIG Device Name is an 18 character field used to identify the device uniquely as one device at the site or project The content of Device Name is maintained by a management node If Device Name is all ASCII blanks it is considered un configured by Honeywell tools ASCII blanks Default nciHolSched NA FTP Holiday calendar schedule CONFIG 63 4368 34 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nciRcvHrtBt LONSPEC Ref Name Controller Receive Time Class CONFIG Description Receive heartbeat time seconds for all failure detect heartbeat network variables in this node 0 Disable failure Default 300 Typical value in Honeywell system nciSetpoints Setpoint Config CONFIG Heating and Cooling SetPoints in Celsius engineering units Occupied cool set point 23 9 C Default Standby cool set point 25 6 C Default Unoccupied cool set point 29 4 C Default Note It is required that UnoccCl gt OccCl gt OccHt 1 11 C UnoccCl gt StdByCl gt StdByHt 1 11 C If the above criteria is not met then the nciSetpoints received over the LONWORKS network will not be accepted and all the current controlling se
45. e sub base has failed in one or both directions The data from the cover to the sub base has not been received for at least 90 seconds or data from the sub base is not updating the cover assembly 23 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 16 Reporting T7350H Errors Continued T7350H errors are reported through the manufacturer defined output network variable nvoError nvoError Field Description errSubBaseVerMisMatch 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 unable to communicate correctly with the firmware version of the cover assembly The cover assembly Public Interface number of the sub base is not compatible with the Public Interface number of the sub base That is nroT7350Ver commVer does not match the version supported by the sub base Communications with the sub base is turned off errNviSpaceTemp nviSpaceTemp network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviOccSchedule nviOccSchedule network variable is 0 either not bound or is bound and being updated periodically power up value 1 bound and not being updated periodically communications or source node failure errNviOccSensor nviOccSensor network variable is 0 either not bound or is boun
46. es Auxiliary LONWORKSO Model Applications Heat Cool Features Relay Capability 7350 1009 Conventional 3 2 4 Humidity Occupancy Isolated Yes or Outdoor Discharge Air Capability Normally Heat Pump Open 7350 1017 Modulating 2 modulating 2 relay Humidity Occupancy Yes Outdoor Discharge Air Capability 4 20 mA output 2 10 Vdc with 500 ohm resistor All models are down selectable and can be configured to control fewer stages than the maximum allowed gt Heat pump applications for these models have a maximum of two heat stages and two cool stages One extra stage of either heat or cool can be configured using the auxiliary relay 5 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Mounting Means Mounts on subbase Subbase Mounts On Wall Using two 5 8 in long 6 32 screws included Outlet Box Using sheet metal screws Throttling Range for Modulating Outputs Automatically adjusts based on heat cool stages Manually adjustable with PDA Clock Accuracy at 77 F 25 C 1 min month 30 days Minimum Stage Operation Time fixed Minimum On Heat 1 minutes Cool 3 minutes Minimum Off Cool and Heat Pump 1 minute Electrical Ratings Power 24 Vac 50 60 Hz 20 to 30 Vac 50 60 Hz Input Temperature 20K ohms Humidity 0 10 Vdc Outdoor 3000 PTC Discharge Air 20K ohms Occupancy Sensor Dry contact switching 30 Vdc at 1 mA All Relay Outputs at 30 Vac Running 1 5A
47. he network cable connect the termination module wiring on the appropriate terminals as shown in Fig 7 For additional wiring information refer to the E Bus Wiring Guidelines form 74 2865 and the Excel 10 FTT Termination Module Installation Instructions form 95 7554 sero 0 0 0 0 T5 T6 AS AUXWS3 YA as E EB EB RH RCI AUX W1 1 BROWN ORANGE PART NO 209541B TERMINATION MODULE QD LY YELLOW M22495 Fig 7 Doubly terminated LonWorks bus termination modules 63 4368 12 N CAUTION Electrical Shock or Equipment Damage Hazard Can shock individuals or short equipment circuitry Disconnect power supply before installation IMPORTANT All wiring must agree with applicable codes ordi nances and regulations 1 Loosen subbase terminal screws and connect system wires NOTE Maximum and recommended wire size is 18 gauge Do not use wire smaller than 22 gauge Fol low equipment manufacturer wiring instructions when available Refer to the Wiring Diagram section for typical hookups A letter code is located near each terminal for identification Refer to the Specifi cations section Tables 8 and 9 for terminal designa tions Securely tighten each terminal screw Push excess wire back into the hole in the wall Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat BON Wiring Details LonWorks network cable should be wired separately from the power and
48. ization will be to a network device that has been designated as the time master Time synchronization will occur at the Guaranteed Periodic Update rate typically every 55 seconds 38 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nvoAlarmH LONSPEC Ref Name Alarm Out Class OUT Description Alarm subnet node and type Alarm subnet is the LonWorks subnet number in domain entry to which nvoAlarmH is bound If nvoAlarmH is not bound reports domain index 0 0 Invalid subnet power up value 1 255 Subnet number Alarm node is the LonWorks node number in domain entry to which nvoAlarmH is bound If nvoAlarmH is not bound reports domain index 0 0 Invalid entry power up value 1 127 Node number Alarm type is the alarm type being issued 0 AT_NO_ALARM power up value AT INVALID SUBBASE TYPE AT NETWORK COMM FAIL AT SENSOR FAIL AT INVALID IO CONFIG AT COVER COMM FAIL AT COVER SUBBASE MISMATCH 127 rtnINVALID SUBBASE TYPE 126 AT rtnNETWORK COMM FAIL 125 AT rtnSENSOR FAIL 124 rtnINVALID IO CONFIG 123 AT rtnCOVER COMM FAIL 122 AT rtn COVER SUBBASE MISMATCH 1 AT ALARM NOTIFY DISABLED DARON nvoAlarmLog Alarm Log Out OUT Reports the last five alarms nvoAlarmStatus Alarm Status Out OUT Status of the following alarms states Communications between the cover and sub bas
49. mA X T7770 REMOTE SENSOR DISCHARGE AIR SENSOR LONWORKSO BUS LONWORKSO BUS COOLING TRANSFORMER HEATING TRANSFORMER 12 AUXILIARY TRANSFORMER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED VAN WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS REMOVE THE FACTORY INSTALLED JUMPER A USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS M22491 Fig 12 Typical hookup of T7350H1017 for system with two independent heat stages one modulating two independent cool stages one modulating and three transformers 63 4368 14 General Considerations Table 8 lists wiring types sizes and distances for the T7350 and Excel 10 products The T7350 terminal strip accepts 18 through 22 AWG 0 82 to 0 34 sq mm wire T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 8 Field Wiring Reference Wire Function Digital Outputs Recommended Wire Size Minimum 18 AWG 0 82 sq mm Specification or Requirement Standard thermostat Honeywell Part Number AK3726 Distance Maximum 1000 feet ft The number of pairs depends on the model and functions selected AK3744C 757 AK3726 W Y G AUX X five wire cable bundle wire Modulating Outputs 18 AWG 0 82 sq mm 1 pair per output AK3757C AK3744C 1000 feet MX MH MC AK3741A AK3702x Remote Humidity 18 to 22 AWG 3 wires AK3746C AK3724 500 feet Sensor 0 82 to
50. maximum Inrush 7 5A maximum Modulating Output 4 to 20 mA with 510 ohm maximum terminating resistance System Current Draw without load 5 VA maximum at 30 Vac 50 60 Hz NOTE Relays are Single Pole Single Throw SPST Outdoor Sensor Wiring Requires 18 gauge wire Humidity Ratings 5 to 90 RH noncondensing Emergency Heat Indication Display indicates when Emergency Heat is activated Em Temperature Ratings Operating Ambient 30 F to 110 F 1 C to 43 Shipping 30 F to 150 F 34 C to 66 Display Accuracy 1 F 1 Setpoint Range Heating 40 F to 90 F 4 C to 32 Cooling 45 F to 99 F 7 C to 37 C Deadband 2 F 1 C Default Settings See Table 5 Loss of Power The thermostat maintains programmed times and temperatures for the life of the product Clock and day information is retained for a minimum of 48 hours NOTE To achieve the 48 hour power loss clock retention the T7350 must be powered for at least 5 minutes 63 4368 6 Communicating Model T7350H Connection Terminals for the LONWORKS Bus Network jack for quick access by personal computer based tools Communications service pin pushbutton to simplify startup LONMARK Functional Profile 8500_20 Space Comfort Controller LONMARK SCC Object Type 8504 Rooftop See Fig 3 LONMARK Program Identifier 80 00 0C 55 04 03 04 2E LONMARK Application Interoperability version 3 3 Honeywell LONMa
51. nored until the network sensor fails Source Destination T7350H nvoSpaceRH T7350H nviSpaceRH or XL15c nviRARH Current Setpoint Sharing If a valid setpoint value is received at T7350H nviSetpoint that value will be used by the T7350H as the center setpoint The heat and cool setpoints are then calculated from this value and are used in the T7350H as the occupied setpoints During unoccupied periods nviSetpoint is ignored Source Destination T7350H nvoEffectSetpt T7350H nviSetpoint or XL10 nvoEffectSetpt Occupancy Sensor Sharing If a valid value is received at the T7350H occupancy sensor network variable input that value will be used in the T7350H as the occupancy sensor The local T7350H occupancy sensor is ignored until the network sensor fails T7350H nvoOccSensor T7350H nviOccSensor Source Destination or XL10 nvoSensorOcc NetworkSensor NOTE The occupancy or motion sensor is active whenever the device is scheduled Occupied and remote or network occupancy sensor is configured The T7350H effective occupancy is determined in Table 6 Table 6 T7350H Effective Occupancy Schedule Occupancy Motion Effective Occupancy Sensor Contact Occupancy Occupied Open Standby Occupied Closed Occupied Standby NA Standby Unoccupied NA Unoccupied 63 4368 10 Occupancy Bypass Any internal or external scheduled unoccupied state in the T735
52. nt state next state time until next change of state with the designated Excel 10 devices Source Destination T7350H nvoOccSchedule T7350H nviOccSchedule or or XL15a nvoTodEventCmdq i XL10 nviTodEvent Q7300 nvoOccSchedulei XL 15c nviTodEventln i System Mode Settings System mode settings HEAT COOL AUTO OFF EM HEAT can be commanded by a remote T7350H or other compatible XL10 device A one to many network binding can be used to command multiple devices from a single unit In addition a network connected Workstation can be used to change the System Mode Command Source Command Destination T7350H nvoHeatCool T7350H nviApplicMode or Workstation Fan Settings Fan settings ON AUTO can be changed from a network connected Workstation 7 Destination Workstation T7350H nviFanAuto or Network Tool Outdoor Air Temperature Sharing If a valid outdoor air temperature value is received at the T7350H OAT network variable input that value will be used in the T7350H The local OAT sensor of the T7350H is ignored until the network sensor fails ee de T7350H nvoTime T7350H nviTimeSet T7350H nviOutdoorTemp T7350H nvoOutdoorTemp or or or or XL15a nvoTimeOut 15a nviTimeln XL10 nvoOdTemp XL10 nviOdTemp Q7300 nvoTime Q7300 nviTime XL15c nvoOdTemp XL15c nviOdTemp Time Schedule Discharge Air Temperature Sharing The discharge air temperature
53. oData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive Control Loop MainSensor nvoSpaceTemp ResetSensor nvoEffectSetpt RecoverySensor nvoDischAirTemp LimitAnaloginput nvoTerminalLoad nvoSpaceRH nvoOutdoorTemp nvoData1 PercentCmdHeat nvoData1 PercentCmdCool nvoData1 HeatStgsOn nvoData1 CoolStgsOn nvoData1 BypassTime nvoOccSensor nvoEffectOccup nvoHeatCool nvoData2 stagesActive Start Stop Loop LoopDisable nvoAlarmStatus CoverCommFail Bypass nvoAlarmStatus InvalidlOConfig nvoAlarmStatus SensorFail nvoAlarmStatus networkCommFail 63 4368 32 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 20 Network Connections to XL15C AP Inputs Continued T7350H Network Variable Outputs can be used as inputs to XL15C application objects XL15C Source T7350H Application Object Application Input Network Variable Network Variable Field nvoAlarmStatus InvalidSubBaseType nvoError errLoclSpaceSensr nvoError ErrRemtSpaceSensr nvoError ErrNetSpaceSensr nvoError ErrLoclHumSensr nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errlOConfig nvoError errSubBaseType nvoError errSubBaseVerMisMatch nvoError errNviSpaceTemp nvoError errNviOccSchedule nvoError errNviOccSensor nvoError errnviApplicMode nvoError errnviOutdoorTemp nvoError errnviS
54. occupied override bypass with LED LoNWoRks Bus jack T7770A1006 Remote Wall Module Basic model with room temperature sensor T7770B1046 Remote Wall Module setpoint change T7770C1044 Remote Wall Module setpoint change OCC button and LED T7770D1000 Remote Wall Module OCC button and LED AK3798 LoNWoRks Bus Non Plenum 1 pair AK3797 LoNWoRks Bus Plenum rated 1 pair AK3799 LoNWoRks Bus Plenum rated 2 pair 209541B FTT Network Termination Module H7625 Remote Humidity Sensors H7635 C7089A Outdoor Air Sensors C7170A C7031G2014 Duct Discharge Air Sensors C7041B 6 inch probe C7041C 18 inch probe C7041J 150 inch averaging C7770A 6 inch probe 50000452 Troubleshooting Cable One Troubleshooting Cable required for each 001 installation technician 50000083 Thermostat Interface Module TIM One TIM required for each installation technician Note 001 that a network tool such LONSPEC eliminates the need for a TIM PDA Qualified Palm OS PDA One PDA required for each installation technician Refer to the PDA Configuration Software for an up to date list of qualified PDA hardware Note that a network tool such as LONSPEC eliminates the need for a PDA 50000314 PDA Configuration Software One Configuration software package can be used to 001 program multiple PDAs Note that a net
55. on objects XL15A Source T7350H Application Object Application Input Network Variable Network Variable Field Analog Alarm Selected Analog Value nvoSpace Temp nvoDischAirTemp nvoTerminalLoad nvoSpaceRH nvoOutdoorTemp nvoData1 PercentCmdHeat nvoData1 PercentCmdCool Digital Alarm Selected Digital Value nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive Bypass Logs Select Bypass Object nvoEffectOccup Run Times Select Point Name nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan Trends Trend Pt nvoSpace Temp nvoEffectSetpt nvoEffectOccup nvoHeatCool nvoDischAirTemp nvoTerminalLoad nvoSpaceRH nvoOutdoorTemp nvoData1 HeatStgsOn nvoData1 CoolStgsOn nvoData1 PercentCmdHeat nvoData1 PercentCmdCool nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 63 4368 26 T7350H Network Variable Outputs can be used as inputs to 15 application objects T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 18 Network Connections to XL15A AP Inputs Continued XL15A A
56. paceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive 7760 Command Display A network connected Command display can be configured by LonSpec to implement the following T7350H functions View and Modify Schedules Occupied Unoccupied and Standby setpoints weekly schedule holiday schedule NOTE If a T7350H is connected to a wall module with set point adjustment the user will not be allowed to change occupied setpoints through Command Dis play 33 Command manual occupancy Annunciate T7350H alarms Monitor T7350H data Room Temperature Active Room Temperature SetPoint Occupancy Status Operating Mode Discharge Air Temperature Space Humidity Outdoor Temperature Heat Stages Active Cool Stages Active Heat Modulating Output Position Cool Modulating Output Position Bypass Minutes Remaining Auxiliary Relay Status Fan Status 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT APPENDIX H T7350H NETWORK VARIABLE SUMMARY Table 21 T7350H Network Variable Summary Nv Name LONSPEC Ref Name Class Description nciApplVer Application version CONFIG Application type identifies the current application number for this device given by a tool 0 Default Increment increased by one whenever any configuration
57. pplication Input Source T7350H Network Variable Field Application Object Network Variable nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive DLC Override If nvoSpaceTemp Demand Limit Control nvoEffectSetpt nvoDischAirTemp nvoTerminalLoad nvoSpaceRH nvoOutdoorTemp nvoData1 PercentCmdHeat nvoData1 PercentCmdCool Analog Logic Function Analog Input nvoSpaceTemp nvoEffectSetpt nvoDischAirTemp nvoTerminalLoad nvoSpaceRH nvoOutdoorTemp nvoData1 PercentCmdHeat nvoData1 PercentCmdCool Digital Logic Function Digital Input nvoAlarmStatus CoverCommFail nvoAlarmStatus InvalidlOConfig nvoAlarmStatus SensorFail nvoAlarmStatus networkCommFail nvoAlarmStatus InvalidSubBaseType nvoError errLoclSpaceSensr nvoError ErrRemtSpaceSensr nvoError ErrNetSpaceSensr nvoError ErrLoclHumSensr nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errlOConfig nvoError errSubBaseType nvoError errSubBaseVerMisMatch nvoError errNviSpaceTemp nvoError errNviOccSchedule nvoError errNviOccSensor nvoError errnviApplicMode nvoError errnviOutdoorTemp 27 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT T7350H Network Variable Outputs can be used as inputs to XL15A application objects Table 18 Network Connections to XL15A AP Inputs Continued XL15A Application Object Appli
58. r assembly 21 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 15 Identifying Five Most Recent T7350 Alarms The five most recent T7350 alarms are identified in the manufacturer defined output network variable nvoAlarmLog nvoAlarmLog Field Description alarm1 Alarm log Most recent alarm Alarm Codes 0 AT_NO_ALARM power up value 1 AT INVALID SUBBASE TYPE 2 AT NETWORK FAIL 3 AT SENSOR FAIL 4 AT INVALID IO CONFIG 5 AT COVER COMM FAIL 6 AT COVER SUBBASE MISMATCH Return to Normal Codes 127 AT rtnINVALID SUBBASE TYPE 126 AT rtnNETWORK COMM FAIL 125 AT rtnSENSOR FAIL 124 AT rtnINVALID IO CONFIG 123 AT rtnCOVER COMM FAIL 122 AT rtnCOVER SUBBASE MISMATCH 1 AT ALARM NOTIFY DISABLED alarm2 Alarm log 279 most recent alarm 0 No alarm power up value alarm3 Alarm log 3 most recent alarm 0 No alarm power up value alarm4 Alarm log 4 most recent alarm 0 No alarm power up value alarm5 Alarm log Oldest alarm 0 No alarm power up value 63 4368 22 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT APPENDIX C NETWORK ERROR REPORTING Table 16 Reporting T7350H Errors T7350H errors are reported through the manufacturer defined output network variable nvoError nvoError Field errLoclSpaceSensr Description Local space temperature sensor not working 0 Sensor value is OK power up value 1 Sensor is configured to fun
59. rer Defined Section Hardware Input A nviBypass SNVT switch nviFanAuto SNVT switch nviManValue UNVT manValue nviDIcShed dicShed Hardware Output nviSpaceTemp SNVT_temp_p nviSetpoint SNVT temp p nviOccSchedule SNVT tod event nviOccManCmd SNVT occupancy nviOccSensor SNVT occupancy nviApplicMode SNVT hvacMode nviOutdoorTemp SNVT Temp p nviSpaceRH SNVT lev percent SCC Rooftop Object Number 8504 Mandatory nvoSpaceTemp SNVT temp p Network nvoUnitStatus Variables gt 27 SNVT_hvac_status nvoEffectSetpt SNVT_temp_p nvoEffectOccup SNVT_occupancy Optional nvoHeatCool Network gt nan SY ac 2 Variables nvoDischAirTemp SNVT temp p nvoTerminalLoad SNVT_lev_percent nvoSpaceRH SNVT_lev_percent nvoOutdoorTemp SNVT_temp_p nc1 nciSndHrtBt nc4 nciRevHrtBt nc2 nciSetpoints nc6 nciBypassTime nciConfig nciConfigPts nciDayLghtSav nciDayScheduleO nciDaySchedule1 nciDaySchedule2 nciDaySchedule3 nciDaySchedule4 nciDaySchedule5 nciDaySchedule6 nciDaySchedule7 nciHolSched Configuration Properties SNVT_time_sec mandatory SNVT_time_sec optional SNVT_temp_setpt mandatory SNVT_time_min optional UCPTconfig manf specific UCPTconfigPts manf specific UCPTdaylightSav manf specific UCPTscheduleO manf specific UCPTschedule1 manf specific UCPTschedule2 manf specific UCPTschedule3
60. rk LONSPEC with model T7350H tool configuration The subbase includes equipment control inputs and network connections The subbase mounts on the wall and the thermostat cover mounts to the subbase In addition the T7350H model can communicate local sensor data schedule information master clock operations and accept configuration and override instructions to or from other devices tools in a LonWorks network Fig 9 shows a typical T7350H application in a three stage heat and two stage cool heat pump system For additional hookups see Fig 10 through 12 WALL MODULE EXCEL 15 EXCEL 10 W7760 CVAHU Honeywell 99998 RS 232 SERIAL PORT LonWorks BUS SLTA 87760 T7350H mA gt e ode 6 MODEM CL WALL MODULE EXCEL 15 W7760 gogooooeo on RS 232 SERIAL PORT LonWorks BUS M22490 Fig 1 Typical T7350H LONWORKS network diagram 63 4368 2 Network Control Provided The T7350H communicates with other network devices or nodes for sharing data such as local inputs Through the network Command Display 57760 is used to view modify T7350H operational modes including Weekly Schedule Holiday Schedule Room Temperature SetPoints Occupied Unoccupied Standby Manual Occupancy Override Temperature Setpoints Update Time Clock Network connected
61. rk Plug In file downloads http plugin ge51 honeywell de index htm PDA System Requirements Palm OS 3 5 x to 5 2 1 Dynamic Heap 256K bytes Free RAM Space 1000K bytes Serial Communications RS232 Approvals European Community Mark CE Listed UL 873 Recognized NEC Class 2 FCC Part 15 subpart J Class A cUL Table 5 Default Setpoints Not Control Occupied Occupied Standby Heating 70 F 21 55 13 C 67 19 C Cooling 75 F 24 85 29 C 78 26 Accessories Duct Discharge Air Sensors C7041B 6 or 12 in C7041C 18 in C7041J 12 ft averaging C7770A 8 in probe Outdoor Air Sensors C7089A C7170A C7031G2014 weatherproof Temperature Sensors Remote C7772A T7770A1006 T7770B1046 T7770C1044 T7770D1000 T7771 Economizer Logic Modules W6210 W6215 W7210 W7212 W7215 W7459 Humidity Sensors H7625A B H7635A B C H7655B PDA Units Palm V M125 and i705 handhelds TRGPro handheld ZIRE 71 handheld TUNGSTEN T handheld Others 209541B FTT network termination module 209651A Vertical Mounting Hardware Wallplate Adapter Trident white 50000083 001 Thermostat Interface Module TIM 50000452 001 Troubleshooting Cable AK3797 Single pair network cable plenum rated U L Type CMP AK3798 Single pair network cable U L Type CMR AK3799 Double pair network cable plenum rated U L Type CMP Q7740A FTT network 2 way repeater
62. rmostats and other nodes with which the T7350H interacts The following is a brief description of the configurable features that can be commanded over the network Time Master When a T7350H is designated as the network time master the current time of day and date is synchronized across the network every minute The LONSPEC T7350H General Screen can be used to configure a T7350H as the Network Time Master Whenever the time of day or date of the time master is changed it automatically adjusts all the other network devices T7350H Q7300 amp XL15A bound to the time master When a T7350H is controlled by a time master the local day light saving schedule is disabled The Day Light Saving option on all time master recipients should be disabled This prevents erroneous time changes local daylight savings switchover during temporary network outages the user is not prevented from making local schedule changes at the recipient thermostat Local schedule changes at a recipient device have no effect on the scheduling commands received from the master device When a T7350H is designated as a master schedule device it sends its schedule information current state next state time until next change of state to the appropriate T7350H s which in turn overrides any existing internal time schedule The T7350H Thermostat can provide master scheduling information to multiple Excel 10 devices One T7350H shares the schedule information curre
63. s a method to command unoccupied override over the network from another controller The other controller does the bypass timing nviBypass can be used to place the T7350H into temporary occupied mode This mode will bypass the time of day occupancy schedule in this device Value State Action 0 NA Do not bypass the time of day occupancy schedule NA 0 or 1 Do not bypass the time of day occupancy schedule 0 5 100 10r Bypass the time of day occupancy greater schedule 0 0 Mains power up and fail detect value nviDIcShed DLC Shed In Demand limit duty cycle load shed command from a network device When a shed request is received the thermostat bumps the control set point up for cooling and down for heating The amount of the bump is a user set point selection The shed state remains until a DLC restore command is received or network communication is lost When the unit transitions from shed to restore the set point is ramped back to the original set point over period of 60 minutes The control only sheds when the thermostat is in the occupied mode Value 0 No load shed being called mains power up or failure detect value 1 or other values Call for load shedding nviFanAuto FanOnAuto In Auto Fan switch last in wins value 0 state don t care Fan is On value Don t care state 0 or 1 Fan is On Value 0 5 100 state 1 or greater Fan is On when there is a call for heat cool
64. s inputs to XL15A application objects XL15A Source T7350 Application Object Application Input Network Variable Network Variable Field nvoData2 RelayFan nvoData2 dehumidActive Control Loop MainSensor nvoSpaceTemp nvoSpaceTemp ResetSensor nvoEffectSetpt nvoEffectSetpt nvoDischAirTemp nvoDischAirTemp nvoTerminalLoad nvoTerminalLoad nvoSpaceRH nvoSpaceRH nvoOutdoorTemp nvoOutdoorTemp nvoData1 PercentCmdHeat nvoData1 PercentCmdCool Start Stop Loop LoopDisable nvoAlarmStatus CoverCommFail nvoAlarmStatus InvalidlOConfig nvoAlarmStatus SensorFail nvoAlarmStatus networkCommFail nvoAlarmStatus InvalidSubBaseType nvoError errLoclSpaceSensr nvoError ErrRemtSpaceSensr nvoError ErrNetSpaceSensr nvoError ErrLoclHumSensr nvoError ErrRemtHumSensr nvoError errNetHumSensr nvoError ErrRemtOdSensr nvoError ErrNetOdSensr nvoError ErrRemtSetPt nvoError ErrDischSensr nvoError errlOConfig nvoError errSubBaseType nvoError errSubBaseVerMisMatch nvoError errNviSpaceTemp nvoError errNviOccSchedule nvoError errNviOccSensor nvoError errnviApplicMode nvoError errnviOutdoorTemp nvoError errnviSpaceRH nvoError errNviBypass nvoError errNviDLCShed nvoData2 RelayHeat3 nvoData2 RelayCool3 nvoData2 RelayHeat2 nvoData2 RelayCool2 nvoData2 RelayAux nvoData2 RelayHeat1 nvoData2 RelayCool1 nvoData2 RelayFan nvoData2 dehumidActive
65. t points will be restored from the thermostat Occupied heat set point 21 1 C Default Standby heat set point 19 4 C Default Unoccupied heat set point 12 8 C Default It is required that UnoccHt lt OccHt lt OccCl 1 11 C UnoccHt lt StdByHt lt StdByCl 1 11 C If the above criteria is not met then the nciSetpoints received over the LONWoRKS network will not be accepted and all the current controlling set points will be restored from the thermostat nciSndHrtBt Controller Send Time CONFIG Send heartbeat time seconds for all Guaranteed periodic update heartbeat network variables in this node 0 Disable periodic update Default 55 Typical value in Honeywell system nroPgmVer Program Version CONST The Honeywell program identifier and subbase firmware version number nroT7350Ver T7350 Version CONST Detailed T7350 cover assembly firmware version information nviApplicMode Application Mode In Thermostat System mode switch 0 HVAC AUTO 1 HVAC HEAT 3 HVAC COOL 6 HVAC OFF 8 HVAC EMERG HEAT Others Considered to be HVAC AUTO Failure detect and mains power up value HVAC AUTO 35 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 21 T7350H Network Variable Summary Continued Nv Name nviBypass LONSPEC Ref Name Bypass In Class Description Remote time bypass input from usually from another device Bypass i
66. the subbase faulty subbase errRemtSetPt Remote wall module set point is out of range or disconnected 0 Value is OK power up value 1 Remote wall module set point is configured to function and is out of range or disconnected errDischSensr Discharge sensor out of range or disconnected 0 Sensor value is OK power up value 1 Sensor is configured to function and is out of range or disconnected errlOConfig Output configuration error Considers sub base type heat pump conventional application maxCoolStgs maxHeatStgs 0 The outputs configuration is consistent with the sub base type selected power up value 1 The number of outputs configured exceeds the capability of the sub base to support them errSubBaseType Sub base type error 0 The sub base is a valid sub base type power up value 1 The detected sub base type is not supported by the firmware version of the cover assembly errUnused1 Not currently used errSelfTest Self test failure Upon factory test power up a self test of memory is performed If external RAM EEPROM or application FLASH memory fails the test nvoError errSelfTest is set This bit is intended for use in production testing Field devices should ignore this bit 0 Passed the test 1 Failed the test errCoverCommFail Communications between the cover and sub base 0 No error power up value 1 The communications between the thermostat cover assembly and th
67. tion 1 Plan the system 2 Determine required network devices 3 Lay out communications and power wiring 4 Prepare wiring diagrams 5 Order equipment 6 Configure T7350 7 Troubleshooting Refer to the Light Commercial Building Solution System Communication Guide form 71 3123 and the E Bus Wiring Guidelines form 74 2865 for a complete description of network topology rules Prepare Wiring Diagrams for wiring details Plan to configure each controller Refer to the Excel LONSPEC User Guide form 74 2937 to configure the T7350H XL15 and XL10 Controllers Step 1 Plan the System Plan the use of the T7350H Thermostat according to the job requirements Determine the location and functionality of each device Verify the sales estimate for the number of other controllers and devices required Check the number and type of other required accessories When planning the system layout consider potential expansion possibilities for future growth Planning is very important if HVAC systems and controllers are to be added in future projects NOTEBOOK PC SHIELDED INTERFACE T7350H RS 232 SERIAL LonWorks BUS PORT M22492 Fig 4 Connecting personal computer to LonWorks bus NOTEBOOK PC T7350H T7350H T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Step 2 Determine Required Network Devices A maximum of 60 nodes can communicate on a single LonWorks
68. up to five minutes for the system to respond Use PDA or LONSPEC to configure heating response System selection is set to Off or Cool Set system selection to Heat or Auto 63 4368 18 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 11 Troubleshooting Information Continued Symptom Cooling will not come on Possible Cause No power to the thermostat Action Check that X terminal is connected to the system transformer Check for 24 Vac between X and RH terminals If missing 24 Vac Check if circuit breaker is tripped if so reset circuit breaker Check if system fuse is blown if so replace fuse Check if the HVAC equipment power switch is in the Off position if so set to the On position Check wiring between thermostat and HVAC equipment Replace broken wires and tighten loose connections If 24 Vac is present proceed with troubleshooting Thermostat minimum off time is activated Wait up to five minutes for the system to respond Use PDA or LoNSPEC to configure cooling response System selection is set to Off or Heat Set system selection to Cool or Auto System indicator flame heat snowflake cool is displayed but no warm or cool air is coming from the registers The call for heat or cool is not yet given Conventional heating equipment turns the fan on only after the furnace has warmed to a setpoint Check if any stage indi
69. utput network variables LonSpec Reference Nv Name Name nvoDischAirTemp Discharge Temperature The current discharge air temperature The sensor value source is configured Out by nciConfig dischAirSensor A value of 327 67 means the sensor is not functioning correctly or is out of range 327 67 Power up value Description nvoOccSensor Occupancy Sensor Out Status of occupancy sensor 0 OC_OCCUPIED 1 OC_UNOCCUPIED 1 OC_NUL not configured and power up value nvoOutdoorTemp Outdoor Temperature Out The current outdoor temperature The sensor value source is specified by nciConfig oDAirSensor A value of 327 67 means the sensor is not functioning correctly or is out of range 327 67 Power up value nvoSpaceRH Space Humidity Out The current space humidity The sensor value source is specified by nciConfig humiditySensor A value of 163 84 means the sensor is not functioning correctly or is out of range 163 84 Power up value nvoSpaceTemp Temperature Out The current space temperature The sensor value source is specified by nciConfig spaceSensor A value 327 67 means the sensor is not functioning correctly or is out of range 327 67 power up value APPENDIX E SCHEDULING NETWORK DEVICES A T7350H can be used to time schedule the following Honeywell controllers Another T7350H T7300 Q7300 XL15C application objects Control loops StartStop loops XL10 controllers A
70. work tool such as LONSPEC eliminates the need for a PDA Step 6 Configure T7350 Use Excel LONSPEC Software to configure the T7350H Thermostat for specific applications The Excel LONSPEC User s Guide form 74 2937 provides software operation instructions for this personal computer based application 17 63 4368 T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT Step 7 Troubleshooting Table 11 Troubleshooting Information Symptom Display will not Possible Cause Thermostat is not being powered Action Check that X terminal is connected to the system transformer Example Cannot set heating higher or cooling lower come on Check for 24 Vac between X and RH terminals If missing 24 Vac Check if circuit breaker is tripped if so reset circuit breaker Check if system fuse is blown if so replace fuse Check if the HVAC equipment power switch is in the Off position if so set to the On position Check wiring between thermostat and HVAC equipment Replace broken wires and tighten loose connections If 24 Vac is present proceed with troubleshooting Temperature Room temperature display has been Use PDA LONSPEC configuration software to recalibrate as display is recalibrated desired Incorrect Thermostat is configured for F or C Press both Run Schedule and Copy then reconfigure the display display Bad thermostat location Relocate the thermostat Display shows three
71. ytes or multiple data fields a structure Neuron Refers to the Echelon semiconductor device which implements the LonWorks protocol on a network connected device such as the T7350H Honeywell controller Node A device implementing layers one through six of the LonTalk protocol including a Neuron Chip transceiver memory and support hardware Notebook PC Portable personal computer PDA Personal Digital Assistant In the case of the T7350 product this is a hand held electronic device operating with the Palm OS A Honeywell provided PDA application program is used to configure the T7350 thermostat using a direct RS232 connection Before purchasing a PDA check the latest Configuration software release note for a list of qualified PDA models Network connected T7350H models can be configured without a PDA using LONSPEC Programmable Controller A controller that has a variable number of control loops of different types and is user programmed to execute an application The user can select the number and type of control loops The user also has the capability of generating new types of control loops Some examples of Honeywell programmable controllers include the XL15A and XL15B Recovery Mode or Recovery Period The time in unoccupied periods when the temperature control is adjusting the control setpoint so that the space temperature reaches the occupied setpoint when the schedule change occurs T7350 COMMERCIAL PROG

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