Johnson Controls SMART EQUIPMENT VERASYS VEC100 Quick Start Manual
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Johnson Controls SMART EQUIPMENT VERASYS VEC100 Quick Start Manual

Johnson Controls SMART EQUIPMENT VERASYS VEC100 Quick Start Manual

Generic rtu controller, staged heating and staged coolinggeneric rtu controller, staged heating and staged cooling
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About this guide
This quick start guide provides the basic information you
need to configure and install the Verasys
Controller (VEC), LC-VEC100-0, using the Verasys generic
rooftop unit (RTU) staged heating and staged cooling
controller application. The application controls a third-
party changeover bypass (COBP) system or a third-party
variable air volume (VAV) unit.
For further information, refer to the Verasys Equipment
Controller (VEC) Installation Guide (24-10143-1272) and the
VEC100 Generic RTU Controller, Staged Heating and Staged
Cooling Application Note (12013443).
Table 1: Application features
Options available Possible values
Number of Heating
0 to 2
Stages Installed
Number of Cooling
0 to 4
Stages Installed
Economizer
•
State 0: the economizer is not
Installed
available.
•
State 1: the economizer is available.
Air Proving Switch
•
State 0: fan status device
Setup
•
State 1: duct static pressure sensor
•
State 2: none
Rooftop Controller
•
State 0: changeover bypass
Type
•
State 1: VAV
Cancel ASCD Timers •
State 0: false
•
State 1: true
Demand Ventilation
•
State 0: demand ventilation is off.
Feature
•
State 1: demand ventilation is on.
Mounting the controller
To mount the controller, complete the following steps:
1.
Mount a 20 cm (8 in.) section of 35 mm (1.3 in.) DIN
rail horizontally.
Note: Mount the controller in the horizontal
position.
2.
On the back of the controller, extend the two
mounting clips.
LC-VEC100-0
VEC100 Generic RTU Controller, Staged Heating
and Staged Cooling Quick Start Guide
Equipment
®
Figure 1: Pull down lower mounting clips
3.
Place the controller on the DIN rail.
4.
Push the bottom mounting clips inward (up) to
secure the controller on the DIN rail.
Figure 2: Push up lower mounting clips
Wiring the controller
Zone bus terminal block
The zone bus terminal block is a grey, removable, 4-
terminal plug that fits into a board-mounted jack. Wire the
removable zone bus terminal block plugs on the controller
on the top row of the stacked connector, and other field
controllers in a daisy-chain configuration using 3-wire
twisted, shielded cable as shown in the following figure.
LIT-12013486
2021-07-14

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Summary of Contents for Johnson Controls SMART EQUIPMENT VERASYS VEC100

  • Page 1 VEC100 Generic RTU Controller, Staged Heating and Staged Cooling Quick Start Guide LIT-12013486 2021-07-14 About this guide Figure 1: Pull down lower mounting clips This quick start guide provides the basic information you need to configure and install the Verasys Equipment ®...
  • Page 2 Supply power terminal block Figure 3: Zone bus terminal block wiring The 24 VAC supply power terminal block is a gray, removable, 3-terminal plug that fits into a board-mounted jack on the top right of the controller. Wire the 24 VAC supply power wires from the transformer to the HOT and COM terminals on the terminal plug, as shown in the following figure.

  • Page 3: Configuring Sensors

    Press ESC (Escape) repeatedly, until you return Navigate to Product Information & Support > to the main screen. Ensure that the main screen Device Updates. shows that the system is operational. Download the package file for the application to the root folder of a USB 2.0 drive. The package Configuring sensors file name is the following: VEC100-StgHTG- StgCLG_xxxx.pkg...
  • Page 4 COBP wiring diagram Figure 6: Changeover bypass wiring diagram - VEC100 VEC100 Generic RTU Controller, Staged Heating and Staged Cooling Quick Start Guide...
  • Page 5 Table 4: Changeover bypass wiring diagram Table 4: Changeover bypass wiring diagram Number Description Object name (if Number Description Object name (if given) given) Economizer Damper Output (optional) MAD-O Return air CO RA-CO2 Range: 0 ppm to 2,000 ppm, 0 VDC to 10 VDC Supply fan output (to fan VFD) SF-O Return air temperature sensor...
  • Page 6 VAV wiring diagram Figure 7: VAV wiring diagram - VEC100 VEC100 Generic RTU Controller, Staged Heating and Staged Cooling Quick Start Guide...

  • Page 7: Commissioning The System

    Table 5: VAV wiring diagram Table 5: VAV wiring diagram Number Description Object name (if Number Description Object name (if given) given) Economizer Damper Output (optional) MAD-O Return air CO RA-CO2 Range: 0 ppm to 2,000 ppm, 0 VDC to 10 VDC Supply fan output (to fan VFD) SF-O Return air temperature sensor...

  • Page 8: Contact Information

    Contact information Contact your local branch office: www.johnsoncontrols.com/locations Contact Johnson Controls: www.johnsoncontrols.com/ contact-us © 2021 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision and are subject to change without notice. www.johnsoncontrols.com...

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