Viconics VT7682S Application Guide
Viconics VT7682S
Wireless Central Manager
Application Guide
VT7682S_Application_Guide-E00
(028-6041 R0 Issue Date: January 10th, 2012)
Table of Contents
Product Overview ............................................................................................................................................ 1
1.1. Features & Benefits ......................................................................................................................... 1
1.2. System Overview & Architecture ..................................................................................................... 2
1.3. Models Available .............................................................................................................................. 2
1.4. Terminal Identification & Functions ................................................................................................. 3
1.5. Screw Terminal Arrangement .......................................................................................................... 3
Integration & Global Commands ..................................................................................................................... 4
1.6. Alarms .............................................................................................................................................. 4
1.7. Outdoor air temperature .................................................................................................................. 5
Typical Application ........................................................................................................................................... 5
1.8. Example of two different systems: ................................................................................................... 6
Wireless Communication Overview ................................................................................................................. 7
Basic Initial Design and Deployment Consideration ........................................................................................ 8
1.9. Knowing and understanding the 6A / 5H rule of Zigbee and how to cover orphan nodes .............. 8
1.10. 6A stands for a maximum 6 addresses per device / node / controller............................................. 8
1.11. Orphan Nodes. ................................................................................................................................ 9
1.12. 5H stands for 5 hops maximum recommended. ............................................................................ 10
1.13. Best practice Zigbee initial network start-up procedure ................................................................ 10
Status LED Indicators .................................................................................................................................... 14
Tips & Things You Need to Know .................................................................................................................. 14
1.14. Compatibility .................................................................................................................................. 14
1.15. Maximum Devices ......................................................................................................................... 14
Troubleshooting Guide .................................................................................................................................. 15
Specifications ................................................................................................................................................. 16
1
Administer 60 controller units with one Wireless Central
Manager.
Flexible control of multiple units with one central scheduler.
Compatible with all current Viconics wireless Terminal
Equipment Controllers.
Insures flexibility without having to invest in new equipment.
Provides multi control functionality.
Wireless Central Manager can control more than one unit
simultaneously.
Intuitive menu-driven, back-lit LCD display simplifies
scheduling.
Easy to commission with user friendly LCD display.
Basic DDC system features built into Wireless Central
Manager.
Provides all the basic required features of a DDC system in one
small package.
Centralized 7 day scheduling (2 or 4 events).
Simplifies scheduling of multiple units.
Central remote outdoor sensing capability for added
flexibility.
Centralized system lock out of heating and cooling modes.
Centralized remote alarm monitoring.
Provides easy alarm monitoring of zones which are in alarm mode
from one central location.
Lockable keypads for tamper proofing. No need for Terminal
Equipment Controller guards.
Eliminates tampering or unauthorized modifications of unit settings.
Allows for setting of central occupied heating and cooling
setpoints.
Effortless adjustment of heating and cooling set points from one
central location.
Product Overview
The Viconics VT7682S Wireless Central Manager allows for simple yet flexible management of multiple
equipment controllers from one convenient location. Facility managers can now efficiently administer
parameters for up to 60 room controllers with one Wireless Central Manager, saving both time and effort.
The Wireless Central Manager is compatible with all current Viconics wireless terminal equipment
controllers including fan-coil units, rooftop units and heat-pump models. The Wireless Central Manager
allows adjustment of set points, central system modes, global overrides, broadcasting of outdoor
temperature and central alarm reporting for installed equipment. The Wireless Central Manager will even
allow you to control more than one type of system simultaneously.
The Wireless Central Manager features an intuitive, menu-driven, back-lit LCD display, which guides users
through simple parameters such as setting central temperature set-points, timed events, system mode and
more.
The Wireless Central Manager Saves you time and money by providing a solution, which is simple to
install, yet does not skimp on functionality. The Wireless Central Manager provides most of the basic
required features of a DDC system at the cost of a typical standalone controller. The Wireless Central
Manager allows for night setback functionality across previously independent programmable and nonprogrammable standalone thermostats, which results in a more energy-efficient, unified building system.
Viconics has made it easier than ever to manage your building more effectively while saving energy with
the VT768S Wireless Central Manager!
1.1. Features & Benefits
Please check with your local government for instruction on disposal of this product.
2
PART NUMBER
DESCRIPTION
VT7682S5000W
Wireless Central Manager
1.2. System Overview & Architecture
The Wireless Central Manager is also compatible with the new Viconics PIR cover accessories.
Devices equipped with a PIR cover provide advanced active occupancy logic, which will
automatically switch occupancy levels from Occupied to Unoccupied as required by local activity
being present or not. This advanced occupancy functionality provides advantageous energy savings
during occupied hours without sacrificing occupant comfort. All controllers can be ordered with or
without a factory installed PIR cover (see ordering notes below).
The following hardware is required for operation of the wireless manager, but not included:
24 VAC power supply. Typically taken directly from the RTU power supply (C & RC)
An outdoor air sensor (Optional)
Proper wiring of all components as per the installation manual
Proper network wires pulled through all devices communication connections
Models Available
The additional following documentation is available on www.viconics.com
- VT7682 installation guide available on document: LIT-VT7682S-Exx.
- Information on the Wireless models is available on documents: ITG-VWG-50-BAC-Exx and LIT-VWG-50-SETUP-Exx.
- Information on the survey tool available on document: MAN-VWG-SURVEY-Exx.
3
Terminal Use
Terminal Identification
Description
4 – RC 24VAC hot
24 V ~ Hot
Power supply of controller (hot side)
5 – C 24VAC com
0 V ~ Com
Power supply of controller (com side)
14 – Scom
Scom
Reference input for OS
15 – OS
OS
Outside air temperature sensor input
Scom
OS
24 V ~ Hot
0 V ~ Com
Left top connector
Bottom connector
1.4. Terminal Identification & Functions
1.5. Screw Terminal Arrangement
4
CLOCK
STATUS
SCHEDULE
STATUS
OUTDOOR TEMPERATURE
IF CONNECTED
ALARMS
Monday
12:00 AM
Occupied
Outdoor
x.x °C or°F
SetClock
Unoccupied
Zone X**
Override
Zone Y*
Zone Z**
Dup Zig
Duplicate Zigbee Address
Wireless Network (up to 60)
Wireless Central Manager
Wireless Controllers
(All Wireless Models)
Central Outdoor Temperature
Outdoor Temperature
Schedule
Occupancy Command
Setpoints
Occupied Heating Setpoint
Unoccupied Heating Setpoint
Occupied Cooling Setpoint
Unoccupied Cooling Setpoint
Central system mode
System Mode
Global commands all devices
(All Controllers)
Global commands specific devices
(Specific Controllers)
Central Global override
Temporary Occupancy Time
Central Alarm
See table below
Integration & Global Commands
The following figure shows which objects from the controller can be monitored and commanded from the
BAS front-end.
Manager Level Device Level
Figure 1: Global commands from a BAS front-end to a VT7600 series controller
1.6. Alarms
Sequence of auto-scroll status display of Wireless Central Manager
** X, Y, Z is the MAC address of the zone that has the alarm.
*** Restart the network by changing the PAN ID (See troubleshooting guide at the end of this document).
5
Frost ON
Indicates that the heating is energized by the low limit frost protection room temperature setpoint 5.6 °C (42 °F).
SetClock
Indicates that the clock needs to be reset. There has been a power failure which has lasted longer than 6 hours.
Service
Indicates that there is a service alarm as per one of the configurable digital input.
Filter
Indicates that the filters are dirty as per one of the configurable digital input.
Fan lock
Indicates that the heating and cooling action are locked out due to a defective fan operation.
Window
Indicates that the outside window or door is opened and that the terminal equipment controller has cancelled any
cooling or heating action.
Discharg
Indicates that the discharge temperature is beyond maximum permissible value.
Low Batt
Indicates that one of the attached wireless switching devices (door or window contact) have a low battery
condition.
FreshAir
Indicates that the fresh air measurement is not within range.
CO2
Indicates that the CO2 level is beyond the maximum permissible value.
The Wireless Central Manager displays the zone MAC address of the device which contains the alarm. The
following are alarms which can be displayed by the controllers:
If alarms are detected, they will automatically be displayed at the end of the status display scroll.
During an alarm message display, the back lit screen will light up at the same time as the message and shut off during
the rest of the status display.
Two alarms maximum can appear at any given time.
The priority for the alarms is as follows:
First zone in, second zone in…subsequent zones in alarm will only display when the first one(s) are out.
The range of zones that can be in alarm is 1 to 253.
1.7. Outdoor air temperature
Outdoor air temperature display is only enabled when outdoor air temperature sensor is connected.
A maximum range status display of 50 °C (122 °F) indicates a shorted sensor. Associated functions, such as mode
lockouts and economizer function are automatically disabled.
A minimum range status -40 °C (-40 °F) is not displayed and indicates an opened sensor or a sensor not connected.
Associated functions, such as mode lockouts and economizer function are automatically disabled.
Typical Application
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