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Appendix A:  VVT Bypass Controller Points/Properties 

 

 

VVT Bypass Controller 

Carrier Proprietary and Confidential 

CARRIER CORPORATION ©2017   

Installation and Start-up Guide 

 

All rights reserved 

 

29 

 

NOTE

  Engineering units shown in this document in the defaults and ranges are strictly for reference. You 

must enter an integer only. 

 

Status 

  

Navigation:

 

i-Vu® / Field Assistant: 

Properties 

Control Program 

Status

 

  

Point Name/Description

 

Range

 

Static Pressure - Prime Variable

 – The current supply duct static pressure. This value is 

shown on the default area graphic in i-Vu or Field Assistant. 

R:  0 to 2.0 in. H

2

(0 to .498 kPa 

Supply Air Temperature

 – If 

Airside Linkage Status

 is 

Active

, this is the air source’s 

current supply air temperature. If 

Airside Linkage Status

 is 

Not Active

, this value is from 

the local SAT sensor. 

R:  -56 to 245°F 

(-48.9 to 118.3°C) 

Damper Position

 – If 

Control Device Type

 is 

Actuator

, this is the current open damper 

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 

bypass. 

R:  On/Off 

LAT Airflow Increase

 – If 

LAT Control

 is 

On

, this is the percent of increase in supply 

airflow that the overriding 

LAT Duct Static Pressure Setpoint

 will provide above the 

normal 

Controlling Pressure Setpoint

R:  0 to 100% 

 
 

 

Unit Configuration 

 

Navigation:

 

i-Vu® / Field Assistant: 

Properties 

Control Program 

Unit Configuration

 

  

Point Name/Description

 

Default/Range

 

Control Device Type

 – The device the controller uses to control static pressure.  

D: 
R: 

Actuator 
Actuator/VFD drive 

Power Fail Restart Delay

 – How long the controller delays normal operation after the 

power is restored. 

D: 
R: 

60 seconds 
0 to 600 secs 

Automatic Deadband Adjustment

 – If using an actuator, set to Enable to automatically 

adjust the damper for full travel to correctly scale the damper position. If using a VFD 

drive, set to Disable. 

D: 
R: 

Enable 
Enable/Disable 

Appendix A:  VVT Bypass Controller Points/Properties 

Содержание OPN-VVTBP

Страница 1: ...t 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 2017 A member of the United Technologies Corporation family Stock symbol...

Страница 2: ...ur local Carrier office Important changes are listed in Document revision history at the end of this document CARRIER CORPORATION 2017 All rights reserved throughout the world i Vu is a registered tra...

Страница 3: ...Wiring and mounting the Equipment Touch 15 Start up 17 Configuring the VVT Bypass Controller s properties 17 Performing system checkout 18 Bypass damper 18 Variable frequency drive VFD 19 Sequence of...

Страница 4: ......

Страница 5: ...e actuator Or the controller can drive multiple external damper actuators The air source supply fan s variable frequency drive VFD NOTE The VVT Bypass Controller controller is available in both Englis...

Страница 6: ...er Carrier Proprietary and Confidential CARRIER CORPORATION 2017 Installation and Start up Guide All rights reserved 2 NOTE This document gives instructions for field installation of a VVT Bypass Cont...

Страница 7: ...to 5 of full flow at 2 in H20 498 kPa Integral actuator Brushless DC motor torque 35 inch pounds 4 Nm runtime 205 seconds for 90 degree travel during control or 25 seconds in high speed test and bala...

Страница 8: ...7 lbs 0 77 kg BACnet support Conforms to the BACnet Advanced Application Controller B AAC Standard Device Profile as defined in ANSI ASHRAE Standard 135 2012 BACnet Annex L Protocol Revision 9 Listed...

Страница 9: ...hock Hazard Failure to follow this warning could cause personal injury death and or equipment damage Disconnect all power to the unit before performing maintenance or service Unit may automatically st...

Страница 10: ...atic pressure probe To install the VVT Bypass Controller 1 Mount the controller page 7 2 Wire the controller for power page 9 3 Set the controller s address page 10 4 Wire the controller to the BACnet...

Страница 11: ...of the controller and adjacent surfaces End view inlet Controller Allow 1 ft 3 m clearance for service access 2 5 in 6 35 cm To mount the controller 1 Turn the damper shaft to fully close the damper...

Страница 12: ...actuator s fully open position a Loosen the appropriate stop clamp screw See figure below b Move the stop clamp until it contacts the edge of the actuator cam c Tighten the screw Move stop clamp if ne...

Страница 13: ...nals CAUTIONS The VVT Bypass Controller is powered by a Class 2 power source Take appropriate isolation measures when mounting it in a control panel where non Class 2 circuits are present Carrier cont...

Страница 14: ...e VVT Bypass Controller has been wired for power pull the screw terminal connector from the controller s power terminals labeled Gnd and 24 Vac The controller reads the address each time you apply pow...

Страница 15: ...nds 3 Connect the communications wiring to the controller s screw terminals labeled Net Net and Shield NOTE Use the same polarity throughout the network segment 4 Set the communication type and baud r...

Страница 16: ...jacket of the 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...

Страница 17: ...high torque actuator or parallel actuators to the controller s 0 10 Vdc analog output NOTE You cannot use the VVT Bypass Controller s built in actuator if wiring external actuator s to the analog outp...

Страница 18: ...can wire up to 4 of the following Belimo actuators to the VVT Bypass Controller s analog output Link actuators whose travel times and other parameters coincide LMX24 MFT P 10028 45 in lb 5 Nm actuato...

Страница 19: ...or Wiring and mounting the Equipment Touch CAUTION If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired See the Equipment Tou...

Страница 20: ...ier part number 33ZCT55SPT to the Equipment Touch Wire the Equipment Touch directly to the controller s Rnet port as shown below 1 Turn off the VVT Bypass Controller s power 2 Partially cut then bend...

Страница 21: ...Touch Installation 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 gr...

Страница 22: ...hen verify that 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...

Страница 23: ...ass damper Then verify 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 method...

Страница 24: ...the measured value 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...

Страница 25: ...is in either of the following 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 b...

Страница 26: ...ly closed 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...

Страница 27: ...r source fan is on 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...

Страница 28: ...ng data over the network segment CW The 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...

Страница 29: ...ct the VVT Bypass Controller in the navigation tree 2 Right click and select Module Status To restore factory defaults CAUTION This erases all archived information and user configuration settings You...

Страница 30: ...ttery s polarity 4 Insert the new battery matching the battery s polarity with the polarity indicated on the controller s cover 5 Replace the VVT Bypass Controller s cover 6 Download the VVT Bypass Co...

Страница 31: ...or on a repair bench 1 Disconnect the High and Low flow sensor tubes 2 Insert the compressed air straw 1 4 into the controller s High connector High Low 3 Press the air can s trigger twice for no more...

Страница 32: ...ion manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to c...

Страница 33: ...current open damper 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 co...

Страница 34: ...c pressure is greater 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 cau...

Страница 35: ...ntrol routines This must 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 Suppl...

Страница 36: ...Air Linkage Status If Active the controller is part of a linked system If Not Active the controller is operating as a stand alone device R Active Not Active Air Source Mode If Airside Linkage Status...

Страница 37: ...CORPORATION 2017 Installation and Start up Guide All rights reserved 33 Point Name Description Range SAT Sensor The current duct air temperature sensor that is physically connected to the controller...

Страница 38: ...for generating a particular mode Evacuation Shutdown changed to Evacuation C AE WB E Specifications Added ARC156 C D Cover What is the VVT Bypass Controller Updated picture C D 2 22 16 Start up Added...

Страница 39: ......

Страница 40: ...CARRIER CORPORATION 2017 A member of the United Technologies Corporation family Stock symbol UTX Catalog No 11 808 436 01 2 7 2017...

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