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CNT-SVX05A-EN

7

Physical specifications

Binary outputs

The binary outputs are normally-open, form A relays. The relays act as a switch,
either making or breaking the circuit between the load (device) and 24VAC. When
binary output 1 is energized, 24VAC is supplied to terminal TB21-1 (OUT),
energizing the supply fan start/stop relay.

Example:

Each binary output has a green status LED on the Tracer

AH.540 control board.

The LED is off when the relay contacts are open. The LED is on when the relay
contacts are closed.

When the binary output relay is off (contact is open), a multimeter should
measure 0VAC across the output terminals. When the binary output relay is on
(contacts are closed), a multimeter should measure 24VAC across the output
terminals.

Table 2 — Binary outputs

Note 1:

Terminals BO 3, BO 4, BO 5, and BO 6 do not serve any function of the Tracer AH.540 controller and are not used.

Description

Function

Factory
Terminals

Field
Terminals

Label

Terminal
Function

Maximum
Output Rating

BO 1

Supply fan
start/stop

J21

TB21-1
TB21-2

OUT
GND

24VAC
Ground

24VA

BO 2

Exhaust fan
start/stop

J22

TB22-1
TB22-2

OUT
GND

24VAC
Ground

24VA

BO 3

Not used
(Note 1)

J23

TB23-1
TB23-2

OUT
GND

Not used

Not used

BO 4

Not used
(Note 1)

J24

TB24-1
TB24-2

OUT
GND

Not used

Not used

BO 5

Not used
(Note 1)

J25

TB25-1
TB25-2

OUT
GND

Not used

Not used

BO 6

Not used
(Note 1)

J26

TB26-1
TB26-2

OUT
GND

Not used

Not used

24VAC

GND

Supply Fan (start/stop)
Relay

Wiring external to the
Termination board

BO 1

TB21-2 (GND)

TB21-1 (OUT)

Termination board

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Содержание Tracer AH540

Страница 1: ...CNT SVX05A EN Installation Owner Diagnostics Tracer AH 540 Tracer AH 541 Configurable Air Handling Unit Controller...

Страница 2: ...American Standard Inc 2000...

Страница 3: ...ating environment 6 Storage environment 6 Agency Conformance 6 Power requirements 6 Binary outputs 7 Analog outputs 8 Analog inputs 8 Binary inputs 9 Analog and binary outputs 10 General description 1...

Страница 4: ...utput summary 29 Sequence of operation 30 Power up sequence 31 Space temperature setpoint operation 32 Space temperature setpoint selection 32 Occupied and unoccupied operation 34 Occupied mode 34 Uno...

Страница 5: ...me space temperature control 51 Constant volume discharge air control or variable air volume control 51 Daytime warm up 52 Cooldown 52 Filter status 52 Freeze avoidance 52 Tracer Summit and Rover outp...

Страница 6: ...sequence 66 Minimum timers 67 Required inputs for unit operation 67 Diagnostics 67 Translating multiple diagnostics 69 Resetting diagnostics 70 Manual output test 70 Cycling power 70 Building automati...

Страница 7: ...ion Inputs and outputs required for each feature The controller is applied to air handling product configurations supporting analog modulating valves economizer damper and face and bypass damper The c...

Страница 8: ...ion Macon Georgia Modular Climate Changer Air Handling Units The Tracer AH 540 controller availability on the Modular Climate Changer air handler is limited to the features and functions provided by t...

Страница 9: ...ic cooling valve Hydronic heating valve Steam heat valve Face and bypass damper heating only Economizer cooling Constant volume space temperature control Constant volume discharge air control Variable...

Страница 10: ...4 CNT SVX05A EN Termination board Analog Outputs Binary Outputs Analog Inputs Binary Inputs Power Comm 5 Communication Duct Static Pressure Input Terminals...

Страница 11: ...CNT SVX05A EN 5 Controller board Supply Fan Status LED Exhaust Fan Status LED RED Service LED Service Push Button Yellow Comm LED Test Push Button Green Status LED ID Label...

Страница 12: ...95 relative humidity non condensing Agency Conformance See Appendix for use limitations UL UL unlisted component UL 873 Temperature Indicating and Regulating Equipment CUL C22 2 No 24 93 Temperature...

Страница 13: ...n contacts are closed a multimeter should measure 24VAC across the output terminals Table 2 Binary outputs Note 1 Terminals BO 3 BO 4 BO 5 and BO 6 do not serve any function of the Tracer AH 540 contr...

Страница 14: ...and bypass damper J14 TB14 1 TB14 2 OUT GND 0 to 10VDC Ground 20mA AO 5 Outdoor air damper J15 TB15 1 TB15 2 OUT GND 0 to 10VDC Ground 20mA AO 6 Not used Description Function Sensor type Note 3 Factor...

Страница 15: ...should measure greater than 20VDC across the binary input terminals Table 5 Binary inputs Description Function Factory terminals Field terminals Label Terminal function IN 7 Low temp detect J37 TB37 1...

Страница 16: ...ler includes a manual output test function This function can be initiated by depressing the Test push button on the controller Use this feature to manually exercise the outputs in a defined sequence F...

Страница 17: ...mpers Note 2 The table below shows the controller s response to low temp detect run stop supply fan status and exhaust fan status latching diagnostics Table 9 Control response to binary input latching...

Страница 18: ...cs Table 10 Low temperature detection controller operation Note 1 When steam is the source of heat the heat valve is cycled open and closed when the controller is shut down on a Low Temp Detect latchi...

Страница 19: ...d setpoints regardless of the state of the hardwired occupancy input only if the occupied bypass timer 0 When neither an occupancy device is wired to binary input IN 9 nor a communicated input is used...

Страница 20: ...it operation until the diagnostic is cleared from the controller Additional details can be found in the Troubleshooting section Table 14 Fan status binary input IN 10 configuration Note 1 A Low Supply...

Страница 21: ...he exhaust fan On and the status switch is not in the closed position The fan status switch does not close the binary input within two minutes of the controller commanding the exhaust fan On This is a...

Страница 22: ...space temperature from either a wired zone sensor or as a communicated value A communicated value has precedence over a locally wired sensor input Therefore the communicated value when present is auto...

Страница 23: ...the setpoint 3 Use the default setpoints if neither the hardwired setpoint nor the communicated setpoint is available Note 1 Communicated inputs to the Tracer AH 540 controller have precedence over l...

Страница 24: ...is allowed When the outdoor air temperature is not present then economizing is not allowed If both the hardwired and communicated outdoor air temperatures are present the controller uses the communic...

Страница 25: ...re control On cancel buttons Momentarily pressing the On button during unoccupied mode places the controller in occupied bypass mode for 120 minutes You can adjust the number of minutes the Tracer AH...

Страница 26: ...ver An external setpoint when present is accessible from the zone sensor s front cover There is only one hardwired setpoint input IN 2 associated with the Tracer AH 540 controller When the hardwired s...

Страница 27: ...dated against the following setpoint limits Heating setpoint high limit Heating setpoint low limit Cooling setpoint high limit Cooling setpoint low limit These setpoint limits only apply to the occupi...

Страница 28: ...troller immediately changes to occupied bypass mode and remains in the mode until either the timer expires or someone presses the zone sensor s timed override Cancel button If the On button is pressed...

Страница 29: ...nnections with a fan mode switch Table 19 Typical Trane zone sensor wiring connections without a fan mode switch TB1 Description 1 Space temperature 2 Common 3 setpoint 4 Fan mode 5 Communications 6 C...

Страница 30: ...o peer communications between controllers which allows controllers to share information or data A communicated variable input such as setpoint space temperature or outdoor air temperature has priority...

Страница 31: ...itance measured in picofarads foot pF ft or picofarads meter pF m between conductors must be 23 2 pF ft 72 6 pF m Link configuration and termination Communication link wiring must use one of the follo...

Страница 32: ...s below Terminate the daisy chain configuration with a resistor at the extreme end of each wire Terminate a trunk and branch configuration with a resistor or resistors placed at one point on the link...

Страница 33: ...ductor of shielded cable Make sure that the 24VAC power supplies are consistent in how they are grounded Avoid sharing 24VAC between Comm5 UCMs Avoid over tightening cable ties and other forms of cabl...

Страница 34: ...the board Figure 6 Tracer AH 540 power requirement TB1 1 24VAC Power input from control box 24VAC transformer TB1 2 GND TB1 3 24VAC Accessory 24VAC power to other devices TB1 4 GND TB1 5 24VAC Accesso...

Страница 35: ...utput AO 3 Face and bypass damper AO 4 Outdoor air damper AO 5 Seven analog inputs Space temperature IN 1 Local setpoint IN 2 Fan mode switch IN 3 Discharge air temperature IN 4 Outdoor air temperatur...

Страница 36: ...emperature at the space heating or cooling setpoint The space temperature can be hardwired to analog input 1 IN 1 on the termination board 10k thermistor only or can be communicated to the controller...

Страница 37: ...troller s occupancy mode Valid occupancy modes for the three different control modes are shown in the following table Table 20 Tracer AH 540 occupancy modes of operation The controller s occupancy mod...

Страница 38: ...t offset is the difference between the setpoint input and the mean setpoint Method Used in these situations Zone sensor with an adjustable hardwired setpoint A hardwired adjustable setpoint is connect...

Страница 39: ...the controller the controller ignores the hardwired setpoint input and uses the communicated value The exception is the unoccupied mode when the controller always uses the stored default unoccupied se...

Страница 40: ...erature the discharge air temperature the active setpoint and the proportional integral control algorithm The modulating control algorithm used when occupied or in occupied standby is described in the...

Страница 41: ...unoccupied heating setpoint the controller turns on the supply fan and provides heating at the discharge air heating setpoint See Table 41 Discharge air temperature control setpoints and setpoint limi...

Страница 42: ...ocal binary occupancy input Occupancy sources There are four ways to control the occupancy mode Communicated request usually provided by the building automation system or peer device By pressing the z...

Страница 43: ...verride Onand Cancel buttonsto place thecontroller inoverride occupied bypass mode and to cancel the override request The controller always recognizes the timed override On button If someone presses t...

Страница 44: ...a communicated request is used to select the occupancy mode the controller defaults to occupied mode because the occupancy binary input if present typically is configured as normally open and no occu...

Страница 45: ...be determined two ways Communicated request Automatically by the controller Communicated request A building automation system or peer controller may communicate the heating or cooling mode to the cont...

Страница 46: ...space heating and cooling mode the unit changes from cool to heat or from heat to cool when the integrated error between the active space setpoint and the active space temperature is 900 F seconds or...

Страница 47: ...A unit that cannot heat will not switch to heat A unit that cannot cool will not switch to cool Error integration example If the active space temperature is 66 5 F the current mode is cooling and the...

Страница 48: ...ine heating capacity At 0 machine heating capacity the heating capacity is at its minimum position As the required machine heating capacity increases the heating capacity is opened above its minimum p...

Страница 49: ...he local configuration value the discharge air cooling setpoint is 50 F The maximum and minimum discharge air cooling setpoint limits are then applied to determine an effective discharge air temperatu...

Страница 50: ...cally determines the heating or cooling mode using auto mode the unit switches to the desired mode based on the control algorithm and the relationship between zone temperature to the configured daytim...

Страница 51: ...s hardwired or communicated is used for duct static pressure high limit shutdown The Tracer AH 540 controller has a configurable duct static pressure high limit setpoint If the duct static pressure ex...

Страница 52: ...it s duct static pressure to the desired duct static pressure setpoint The Tracer AH 540 controller has a configurable duct static pressure high limit Fan operation is controlled to actively avoid exc...

Страница 53: ...is less than the face and bypass heat modulation setpoint the face and bypass damper is full bypass The face and bypass heat modulation setpoint is the outdoor air temperature 40 F default at which t...

Страница 54: ...or units with hydronic heating and cooling Mixed air control is used to maintain the mixed air temperature above the mixed air low limit setpoint configurable See Table 27 below If the air handling un...

Страница 55: ...dulates the outdoor air damper between the active minimum damper position and 100 to control the amount of outdoor air cooling capacity When the outdoor air temperature rises 5 F above the economizer...

Страница 56: ...cause of device stroke time the state of the exhaust fan may change before the economizing damper reaches its target position If the exhaust fan start setpoint is set at or lower than the outdoor air...

Страница 57: ...the supply fan The damper normally is closed during warm up cooldown mode unoccupied mode certain diagnostic conditions low ambient damper lockout anytime the supply fan is off Morning warm up can al...

Страница 58: ...damper position according to the effective occupancy Cooldown The controller configured for constant volume space temperature control closes the outdoor air damper when present at every transition fro...

Страница 59: ...product specific literature for the building automation system and the service tool The controller includes a Manual Output Test function which allows the user to manually exercise the outputs in a pr...

Страница 60: ...r includes a communication variable nviValveOverride that allows a user to specify the desired state of all water valves The states supported are Open all valves Close all valves Water valve override...

Страница 61: ...ibration With Rover service tool you can calibrate two of the controller s analog inputs space temperature and setpoint For each input the calibration value is added to the measured value to determine...

Страница 62: ...trol mode to be constant volume space temperature control Rover will not allow AO 1 to be configured for a supply fan speed output Analog output 1 AO 1 is only used when the controller is configured f...

Страница 63: ...mper is less than the exhaust fan start setpoint minus the exhaust fan stop differential Analog input Note 1 Function Calibration range Default value IN 1 Space temperature sensor 10 0 F 5 7 C 0 1 F r...

Страница 64: ...C 67 F 19 4 C Occupied standby cooling setpoint 40 to 115 F 4 44 to 46 1 C 78 F 25 6 C Unoccupied heating setpoint 40 to 115 F 4 44 to 46 1 C 60 F 15 6 C Unoccupied cooling setpoint 40 to 115 F 4 44 t...

Страница 65: ...the supply fan Table 46 Face and bypass heat modulation Note 1 This parameter is only used when a face and bypass damper is present When the outdoor air temperature is below this outdoor air temperatu...

Страница 66: ...ply Fan Air Flow diagnostics can all be configured as service required or critical alarm diagnostics The diagnostics cannot be individually configured Location identifier The Tracer AH 540 includes un...

Страница 67: ...he bypass time to zero The controller only acts on a Cancel request during occupied bypass Morning warm up and daytime warm up If the Tracer AH 540 controller is configured for constant volume dischar...

Страница 68: ...r to peer timed override requires at least two controllers The first controller commonly referred to as the master passes occupancy information to other controllers commonly referred to as slaves The...

Страница 69: ...tpoints for each communicating controller each controller must have exactly the same default setpoints The standalone master controller derives its setpoint from either the local hardwired setpoint in...

Страница 70: ...arning If the Service push button is held down for more than 15 seconds the controller will uninstall itself from the ICS communication network This mode is indicated by the red Service LED flashing o...

Страница 71: ...normal unit operation prior to testing the outputs If the diagnostics remain after an attempt to clear diagnostics the status LED lights in a two blink pattern indicating the diagnostic condition is s...

Страница 72: ...or closed The Status LED blinks in a one blink pattern in the manual output test or the Status LED blinks in a two blink pattern if in the manual output test and a diagnostic is present Note 3 At the...

Страница 73: ...shuts down the unit to protect the air handling unit and avert possible damage or the controller cannot operate until the diagnostic condition is corrected Service required The controller disables cer...

Страница 74: ...scharge air control Variable air volume control Enabled Valves Enabled Outdoor air damper Enabled Face and bypass damper Enabled Exhaust fan Enabled Outdoor Air Temp Failure service required Notes 2 5...

Страница 75: ...If a stop input condition occurs IN 8 the controller communicates a Unit Shutdown diagnostic message but does not close the valves Since low temp detect is a higher priority diagnostic a unit shutdown...

Страница 76: ...Manual output test section Cycling power When the controller s 24VAC power is turned off then on the unit cycles through a power up sequence By default the controller attempts to reset all diagnostics...

Страница 77: ...d output wiring However based on the current step in the test sequence the unit fan may not be on Refer to the Manual output test section Unit wiring The wiring between the controller outputs and the...

Страница 78: ...ient power or has failed No power to the valves If the valve does not have power a normally open valve remains closed The valves are powered separately from the controller s output signal If the valve...

Страница 79: ...per is closed Power up control wait When power up control wait is enabled non zero time the controller remains off until one of two conditions occurs The controller exits power up control wait when it...

Страница 80: ...nomizer disabled Morning warm up Morning warm up Fan Enabled Heating Enabled Note 1 Cooling Disabled Damper Closed Cool Cool Fan Enabled Heating Disabled Cooling Enabled Damper Enabled Night purge Nig...

Страница 81: ...rm up Any state Morning warm up Fan Enabled Heating Enabled Cooling Disabled Damper Closed Cool Any state Cool Fan Enabled Heating Disabled Note 1 Cooling Enabled Damper Enabled Night purge Any state...

Страница 82: ...warm up Heat Fan Enabled Heating Enabled Cooling Disabled Damper Disabled Cool Cool Auto Fan Enabled Heating Disabled Note 1 Cooling Enabled Damper Enabled Night purge Night purge Cool Fan Enabled Hea...

Страница 83: ...k 50 F 3 4k 125 F 17 5k 55 F 3 1k 130 F 15 3k 60 F 2 8k 135 F 13 5k 65 F 2 5k 140 F 11 9k 70 F 2 3k 145 F 10 5k 75 F 2 1k 150 F Resistance ohms Temperature Resistance ohms Temperature 930 3 0 F 1097 3...

Страница 84: ...re designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and us...

Страница 85: ...6 Analog input 02 17 Enable or disable 21 Hardwired setpoint 20 Analog input 03 17 Analog input 04 18 Analog input 05 18 Analog input 06 18 Analog inputs 16 Configuration 57 Descriptions 8 List 29 Pri...

Страница 86: ...int 55 Cancel button 19 Cancel button on the zone sensor 22 37 Cascade control 30 Comm LED 65 Comm5 communication protocol 24 Communicated occupancy request 13 Communication jack on zone sensor 22 Com...

Страница 87: ...Status 45 Low Exhaust Fan Air Flow 15 Low Supply Fan Air Flow 14 Low Temperature Detection 12 Maintenance Required 52 Mixed Air Temperature Failure 18 Multiple diagnostics 69 Outdoor Air Temp Failure...

Страница 88: ...eat modulation 59 Operation 47 Operation based on outdoor air temperature 47 Fan control options 3 Fan mode switch on zone sensor 17 22 Fan operation 22 Fan status 14 Fan Status diagnostic 45 Fan swit...

Страница 89: ...ier 60 Low Exhaust Fan Air Flow diagnostic 15 Low Supply Fan Air Flow diagnostic 14 Low temperature detection 12 Diagnostic 12 M Maintenance Required diagnostic 52 Manual output test 10 53 65 Test seq...

Страница 90: ...ed 34 Occupied bypass 36 Occupied standby 35 Scheduled request 36 Sensor request 37 Unoccupied 35 Occupancy sources 36 Occupied bypass mode 16 22 36 On cancel 19 Occupied mode 34 Occupied standby mode...

Страница 91: ...0 17 RTD sensor 18 Run stop input 12 S Sequence of operation 30 Service LED 64 Service override mode 53 Service push button 64 Setpoint Failure diagnostic 17 Setpoint offset 20 Setpoints Active setpoi...

Страница 92: ...ply fan Constant volume operation 46 Variable air volume operation 46 Supply fan status 14 Ignore time 59 T Terminal J43 18 Test push button 10 64 Thermistor values 77 Timed override 22 61 On and canc...

Страница 93: ...46 Morning warmup control 51 Operation based on effective heat cool output 76 VAV 30 W Water valve override 54 Y Yellow Comm LED activity 65 Z Zone sensor 20 Communication jack 22 Fan mode switch 22...

Страница 94: ......

Страница 95: ......

Страница 96: ...change design and specifications without notice Literature Order Number CNT SVX005A EN File Number SV UN RT SVX005 10 00 Supersedes New Stocking Location La Crosse The Trane Company An American Stand...

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