Table of Contents
Advertisement
Contents
Introduction .................................................................................................................................................................. 1
What is a VVT Bypass Controller? ...................................................................................................................... 1
Specifications ........................................................................................................................................................ 3
Safety Considerations .......................................................................................................................................... 4
Installing the VVT Bypass Controller .......................................................................................................................... 6
Field-supplied hardware ...................................................................................................................................... 6
Mounting the VVT Bypass Controller .................................................................................................................. 7
To mount the controller ........................................................................................................................ 7
Wiring the VVT Bypass Controller for power ..................................................................................................... 9
To wire the controller for power ............................................................................................................ 9
Addressing the VVT Bypass Controller ............................................................................................................ 10
Wiring for communications .............................................................................................................................. 10
Wiring specifications for BACnet MS/TP and ARC156 ...................................................................... 11
To wire the controller to the BACnet network .................................................................................... 11
Wiring inputs and outputs ................................................................................................................................ 12
Wiring a Duct Air Temperature sensor to an input ............................................................................ 12
Wiring field-supplied actuators to the analog output ........................................................................ 13
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 operation .............................................................................................................................................. 21
Duct static pressure control ............................................................................................................................. 21
LAT monitoring and limiting ............................................................................................................................. 21
Equipment fan off detection ............................................................................................................................ 22
Supply Air Temperature Alarm ........................................................................................................................ 22
Airside linkage .................................................................................................................................................... 22
Air source mode determination....................................................................................................................... 23
Troubleshooting ......................................................................................................................................................... 24
LED's .................................................................................................................................................................... 24
To get the serial number .................................................................................................................................. 25
To restore factory defaults ............................................................................................................................... 25
To replace the controller's battery .................................................................................................................. 26
To clean the airflow sensor orifice and replace the filter ............................................................................ 26
Compliance ................................................................................................................................................................ 28
FCC Compliance ................................................................................................................................................. 28
CE Compliance ................................................................................................................................................... 28
BACnet Compliance........................................................................................................................................... 28
Appendix A: VVT Bypass Controller Points/Properties .......................................................................................... 29
Status................................................................................................................................................................... 29
Unit Configuration .............................................................................................................................................. 29
Maintenance ....................................................................................................................................................... 31
Alarms ................................................................................................................................................................. 32
Linkage ................................................................................................................................................................ 32
I/O Points ............................................................................................................................................................ 32
Document revision history ........................................................................................................................................ 34
Advertisement
Table of Contents
