Applications Guide Tracer Graphical Programming - Trane
Applications Guide Tracer Graphical Programming - Trane Applications Guide Tracer Graphical Programming - Trane
® Chapter 6 VAV AHU example Table 13: VAV AHU variables data definition Variable Name Notes Tracer Summit binary variables Not Used Local binary variables Supply Fan Failure Sourced from a program Exhaust Fan Failure Sourced from a program Sensor Failure Sourced from a program Duct Static High Limit Sourced from a program Low OA Temp Alarm Sourced from a program Fan Failure Reset Sourced from operator display and a program Alarm Reset Sourced from operator display and a program Manual Reset Alarm Sourced from a program Info Alarm Active Sourced from a program Wired Setpoint Enable Sourced from operator display Economizer Enable Sourced from operator display Heat/Cool Mode Sourced from a program OK to Economize Sourced from a program Maintenance Required Sourced from a program Maintenance Timer Reset Sourced from operator display and a program Tracer Summit analog variables Not Used Local analog variables Space Temp SP (OD) Setpoint sourced from the operator display Eff Occ Cool SP Sourced from a program Eff Occ Heat SP Sourced from a program Effective Cool SP Sourced from a program Effective Heat SP Sourced from a program DA Cooling SP Sourced from a program DA Heating SP Sourced from a program Low OA Temp SP Setpoint sourced from the operator display OA Damper Min Pos Setpoint sourced from the operator display Before you write the program, configure these inputs, outputs, and variables in your Tracer MP580/581 controller. Also, because you are programming a VAV air-handling unit, set the controller to use the LonMark ® Discharge Air Controller (DAC) profile. The DAC profile provides the configuration data listed in Table 14. Table 14: Network configuration inputs for the DAC profile nci SNVT Notes nciBypassTime SNVT_time_min Occupied bypass time nciDACISP SNVT_temp_p Discharge air cooling setpoint nciDAHtSP SNVT_temp_p Discharge air heating setpoint nciDuctStatSP SNVT_press_p Duct static pressure setpoint nciDuctStatLim SNVT_press_p Duct static pressure limit nciBldgStaticSP SNVT_press_p Building static pressure setpoint 110 CNT-APG001-EN
® Reviewing the sequence of operation Table 14: Network configuration inputs for the DAC profile (continued) nci SNVT Notes nciMALowLimitSP SNVT_temp_p Mixed air low limit setpoint nciOATSP SNVT_temp_p Outdoor air temperature (economizer changeover) setpoint nciSetpoints SNVT_temp_setpt Provides default unoccupied, occupied, and occupied standby cooling and heating setpoints Then make sure that the TGP editor is open and ready to go. CNT-APG001-EN 111
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®<br />
Chapter 6 VAV AHU example<br />
Table 13: VAV AHU variables data definition<br />
Variable Name Notes<br />
<strong>Tracer</strong> Summit binary variables Not Used<br />
Local binary variables Supply Fan Failure Sourced from a program<br />
Exhaust Fan Failure Sourced from a program<br />
Sensor Failure<br />
Sourced from a program<br />
Duct Static High Limit Sourced from a program<br />
Low OA Temp Alarm Sourced from a program<br />
Fan Failure Reset<br />
Sourced from operator display and a program<br />
Alarm Reset<br />
Sourced from operator display and a program<br />
Manual Reset Alarm Sourced from a program<br />
Info Alarm Active<br />
Sourced from a program<br />
Wired Setpoint Enable Sourced from operator display<br />
Economizer Enable Sourced from operator display<br />
Heat/Cool Mode<br />
Sourced from a program<br />
OK to Economize<br />
Sourced from a program<br />
Maintenance Required Sourced from a program<br />
Maintenance Timer Reset Sourced from operator display and a program<br />
<strong>Tracer</strong> Summit analog variables Not Used<br />
Local analog variables Space Temp SP (OD) Setpoint sourced from the operator display<br />
Eff Occ Cool SP<br />
Sourced from a program<br />
Eff Occ Heat SP<br />
Sourced from a program<br />
Effective Cool SP<br />
Sourced from a program<br />
Effective Heat SP<br />
Sourced from a program<br />
DA Cooling SP<br />
Sourced from a program<br />
DA Heating SP<br />
Sourced from a program<br />
Low OA Temp SP<br />
Setpoint sourced from the operator display<br />
OA Damper Min Pos Setpoint sourced from the operator display<br />
Before you write the program, configure these inputs, outputs, and variables<br />
in your <strong>Tracer</strong> MP580/581 controller. Also, because you are programming<br />
a VAV air-handling unit, set the controller to use the<br />
LonMark ® Discharge Air Controller (DAC) profile. The DAC profile provides<br />
the configuration data listed in Table 14.<br />
Table 14: Network configuration inputs for the DAC profile<br />
nci SNVT Notes<br />
nciBypassTime SNVT_time_min Occupied bypass time<br />
nciDACISP SNVT_temp_p Discharge air cooling setpoint<br />
nciDAHtSP SNVT_temp_p Discharge air heating setpoint<br />
nciDuctStatSP SNVT_press_p Duct static pressure setpoint<br />
nciDuctStatLim SNVT_press_p Duct static pressure limit<br />
nciBldgStaticSP SNVT_press_p Building static pressure setpoint<br />
110 CNT-APG001-EN
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