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Appendix B:  BACnet points list 

 

 

 

 

VVT Bypass II Controller 

 

CARRIER CORPORATION ©2019   

Installation and Start-up Guide 

 

All rights reserved 

 

45 

 

 

 

 

 

 

 

BACnet

 

Point Name 

Point Access 

Units 

Default 

Value 

BACnet Point Name  BACnet Object 

ID 

Controlling Pressure 

Setpoint 

in H2O 

  

sys_press_stpt 

AV:1015 

Damper Position 

  

dpr_pos 

AV:1013 

LAT Airflow Increase 

  

lat_airflow_inc 

AV:5002 

Maximum Duct Pressure 

Setpoint 

in H2O 

  

max_press_stpt 

AV:5003 

Maximum Heating SAT 

R/W 

°F 

120 

sat_ht_max 

AV:83004 

Minimum Cooling SAT 

R/W 

°F 

45 

sat_cl_min 

AV:83003 

Power Fail Restart Delay 

R/W 

sec 

60 

start_delay 

AV:9007 

Pressure Control Deadband  R/W 

in H2O 

0.05 

press_hysteresis 

AV:3016 

Static Pressure - Prime 

Variable 

in H2O 

  

static_press 

AV:1016 

Supply Air Temperature 

°F 

  

sa_temp 

AV:1008 

VFD output 

  

vfd_output 

AV:1014 

Airside Linkage Status 

0=Not Active 

1=Active 

  

a_link_status 

  

Automatic Deadband 

Adjustment 

R/W 

0=Disable 

1=Enable 

Active (1) 

auto_adjust 

BV:99003 

Control Device Type 

R/W 

0=Actuator 

1=VFD 

Inactive (0)  ctrl_type 

BV:99002 

LAT Control 

0=Off 

1=Active 

  

lat_control 

BV:1013 

Air Source Mode 

1=Off 

2=Warmup 

3=Heat 

4=Cool 

5=Freecool 

6=Pressure 

7=Evac 

8=Vent 

  

link_ahu_mode 

  

Airside Linkage Alarm 

0=Normal 

1=Alarm 

  

air_linkage_fail 

BV:7030 

Supply Air Temperature 

Alarm 

0=Normal 

1=Alarm 

  

sat_alarm 

BV:7004 

 

 
 

 

 

Appendix B:  BACnet points list 

Содержание VVT Bypass II

Страница 1: ...n nt tr ro ol ll le er r I In ns st ta al ll la at ti io on n a an nd d S St ta ar rt t u up p G Gu ui id de e CARRIER CORPORATION 2019 A member of the United Technologies Corporation family Stock sym...

Страница 2: ...ur local Carrier office Important changes are listed in Document revision history at the end of this document CARRIER CORPORATION 2019 All rights reserved throughout the world i Vu is a registered tra...

Страница 3: ...Rnet port 20 Wiring the TruVu ET Display to the Rnet port 21 Start up 22 Configuring the VVT Bypass II s properties 22 Performing system checkout 23 Bypass damper 23 Variable frequency drive VFD 24 S...

Страница 4: ...Contents Appendix A VVT Bypass II Points Properties 40 Status 40 Unit Configuration 40 Maintenance 42 Alarms 43 Linkage 43 I O Points 44 Appendix B BACnet points list 45 Document revision history 46...

Страница 5: ...FD NOTE The VVT Bypass II controller is available in both English or Metric units The metric version has M appended to the part number Everything in this document applies to both versions The i Vu Con...

Страница 6: ...n VVT Bypass II Controller CARRIER CORPORATION 2019 Installation and Start up Guide All rights reserved 2 NOTE This document gives instructions for field installation of a VVT Bypass II in an i Vu Con...

Страница 7: ...d as the controller Output resolution 8 bit D A Integral airflow sensor Precision differential pressure sensor 0 2 in H2O sensitive down to 0 001 in H2O Barbed tapered airflow connections accept 3 16...

Страница 8: ...nting hole centerline to actuator mounting hole centerline Controller overall dimensions Width Height Depth 6 4 in 16 3 cm 5 7 in 14 5 cm 2 1 in 5 3 cm Controller mounting dimensions 5 3 in 13 4 cm fr...

Страница 9: ...ation safety devices and emergency procedures Good judgment should be used in applying any manufacturer s instructions to avoid injury to personnel or damage to equipment and property WARNING Electric...

Страница 10: ...e 12 3 Set the controller s address page 14 4 Wire the controller to the BACnet MS TP or BACnet ARC156 network page 14 5 Wire the inputs and outputs page 16 Field supplied hardware Each VVT Bypass II...

Страница 11: ...s reserved 7 Mounting the VVT Bypass II Mount the VVT Bypass II on the bypass duct damper actuator shaft For service access allow at least 1 foot 3 m of clearance between the front of the controller a...

Страница 12: ...from the controller by inserting a screw driver in the slot on the back of the VVT Bypass II and pressing the tab The actuator cable or an attached extension cable must connect to the controller s Ac...

Страница 13: ...ont of the controller and adjacent surfaces 3 Secure the controller and the actuator by installing the screws anti rotation slot s bushings and o rings that are supplied with the VVT Bypass II O ring...

Страница 14: ...re shipped with the VVT Bypass II Overtightening the screws so that the controller and actuator cannot move may damage the unit 4 Hold down the controller s damper release button and rotate the actuat...

Страница 15: ...hten the screw 8 Hold down the actuator damper release button rotate the damper to verify that it fully opens and closes then release the button 9 10 Connect the tube provided to the controller s High...

Страница 16: ...return Wiring the VVT Bypass II for power WARNING Do not apply line voltage mains voltage to the controller s ports and terminals CAUTIONS The VVT Bypass II is powered by a Class 2 power source Take...

Страница 17: ...wer supply 3 Pull the screw terminal connector from the controller s power terminals labeled Gnd and 24 Vac 4 Connect the transformer wires to the screw terminal connector 5 Apply power to the power s...

Страница 18: ...ch to the ones digit EXAMPLE If the controller s address is 25 point the arrow on the Tens 10 s switch to 2 and the arrow on the Ones 1 s switch to 5 10 s 1 s 1 3 4 5 2 7 8 9 6 0 1 3 4 5 2 7 8 9 6 0 C...

Страница 19: ...w terminals labeled Net Net and Shield NOTE Use the same polarity throughout the network segment 4 Set the communication type and baud rate For Set BACnet ARC156 or MS TP jumper to Set DIP switches 1...

Страница 20: ...cable Do not pull or draw cable with a force that may harm the physical or electrical properties Avoid splices in any control wiring Wiring a Duct Air Temperature sensor to an input Part 33ZCSENDAT T...

Страница 21: ...elow NOTE Sensor wiring does not have polarity The wires can be connected to either terminal 2 Using electrical tape insulate any exposed wire to prevent shorting Wiring field supplied actuators to th...

Страница 22: ...ler s 45 in lb 5 Nm actuator NMX24 MFT P 10028 90 in lb 10 Nm actuator with 0 10 Vdc control and 0 10 Vdc feedback AMX24 MFT P 10028 180 in lb 20 Nm actuator with 0 10 Vdc control and 0 10 Vdc feedbac...

Страница 23: ...r parameters coincide LMX24 MFT P 10028 45 in lb 5 Nm actuator with 0 10 Vdc control NMX24 MFT P 10028 90 in lb 10 Nm actuator with 0 10 Vdc control AMX24 MFT P 10028 180 in lb 20 Nm actuator with 0 1...

Страница 24: ...urce with the Carrier controller as long as you Maintain the same polarity User the power supply only for Carrier controllers You can also wire an external 10 kOhm Type II thermistor Carrier part 33ZC...

Страница 25: ...ce 100 feet 30 meters CAUTION The TruVu ET Display can share a power supply with the Carrier controller as long as The power supply is DC power You maintain the same polarity You use the power source...

Страница 26: ...tallation and Setup Guide for detailed instructions CAUTION If multiple controllers share power but polarity was not maintained when they were wired the difference between the controller s ground and...

Страница 27: ...the damper is fully closed d Click Damper Full Open then verify that the damper is fully open e Click Zero Cal to close the bypass damper and zero the pressure sensor When Done appears click Apply f...

Страница 28: ...that the low pressure connector is not blocked 5 Calibrate the VFD and pressure sensor a Disable the air source heating cooling and fan outputs using one of the following methods Physically disconnec...

Страница 29: ...ue next to the button then click Apply j Remove the magnehelic gauge from the High connector then reinsert the pressure tubing k Click Automatic Control to return the bypass to normal control l Enable...

Страница 30: ...modes Fire shutdown or evacuation mode The bypass damper will be fully open If controlling a VFD the VFD output will be at 0 Pressurization mode The bypass damper will be fully closed If controlling...

Страница 31: ...or VFD is commanded to maximum speed after 1 minute the controller assumes that the equipment fan turned off The bypass damper then modulates to 65 open and the VFD speed is commanded to 35 3 5 volts...

Страница 32: ...n and providing cooling using only the economizer and usually during an unoccupied period The terminal modulates its primary air damper to maintain the midpoint between the configured occupied heating...

Страница 33: ...ring occupancy Time Synch Sensitivity seconds When the controller receives a time sync request if the difference between the controller s time and the time sync s time is greater than this field s val...

Страница 34: ...xcessively EXCEPTION In rare circumstances such as process control a subscribing object may require COV updates more frequently than once per second For these situations clear this checkbox but make s...

Страница 35: ...ase In the i Vu interface on the Alarm Enable Disable tab change the acknowledgment settings for an alarm source or an alarm category Recipient List Recipients The first row in this list is from the i...

Страница 36: ...m properties or set delays for the following BACnet alarms Common alarms Module Halted All Programs Stopped Duplicate Address Locked I O Control Program Program Stopped Excessive COV Module Generated...

Страница 37: ...are for future use Module Generated Alarm Description Short message shown on the i Vu Alarms page or in an alarm action when this type of alarm is generated Events Alarm Category and Alarm Template Se...

Страница 38: ...devices that are physically connected or in the control program will show in the table NOTE See To get the Carrier VVT Bypass II serial number page 36 for the controller serial number The Act Net net...

Страница 39: ...he actuator motor is turning clockwise CCW The actuator motor is turning counterclockwise The Run and Error LED s indicate controller and network status If Run LED shows And Error LED shows Status is...

Страница 40: ...click and select Module Status To restore factory defaults CAUTION This erases all archived information and user configuration settings You will have to reconfigure all custom settings It is recommend...

Страница 41: ...polarity indicated on the controller s cover 5 Replace the VVT Bypass II s cover 6 Download the VVT Bypass II To clean the airflow sensor orifice In less than 02 of installations small particulates mi...

Страница 42: ...t the compressed air straw 1 4 into the controller s High connector WARNING The compressed air can MUST be upright It will damage the flow sensors by producing ice crystals if the can is on its side 3...

Страница 43: ...nstalled and used in accordance with this document it may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Страница 44: ...per position R 0 to 100 VFD output If Control Device Type is VFD this is the current VFD speed capacity R 0 to 100 LAT Control The status of LAT Limit duct static pressure override control of the bypa...

Страница 45: ...than the controlling setpoint this value the output modulates accordingly CAUTION If this value is too low the damper may oscillate to maintain the static pressure This could cause the actuator to fa...

Страница 46: ...be activated when you finish using any of the other Test and Balance commands Damper Full Close Overrides the damper to its full closed position Local Sensor Calibration Supply Air Temperature Display...

Страница 47: ...tion i Vu Field Assistant Properties Control Program Linkage Point Name Description Range Air Linkage Status If Active the controller is part of a linked system If Not Active the controller is operati...

Страница 48: ...Properties I O Points Point Name Description Range Pressure Input The current duct static pressure of the controller s integrated airflow sensor R 0 to 2 0 in H2O 0 to 498 kPa SAT Sensor The current d...

Страница 49: ...sec 60 start_delay AV 9007 Pressure Control Deadband R W in H2O 0 05 press_hysteresis AV 3016 Static Pressure Prime Variable R in H2O static_press AV 1016 Supply Air Temperature R F sa_temp AV 1008 V...

Страница 50: ...2 17 18 Wiring the VVT Bypass II for power To wire the controller for power Added photograph of lifting up the cover X H RE E CC JS Mounting the VVT Bypass II To mount the controller and actuator Adde...

Страница 51: ......

Страница 52: ...CARRIER CORPORATION 2019 A member of the United Technologies Corporation family Stock symbol UTX Catalog No 11 808 601 01 1 25 2019...

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