Single Loop VAV/Zoning
If you have a single HVAC unit that will be using VAV terminal
units or are using a zoning system and don’t have any CV units
you should select the Single Loop Zoning System. On a Variable
Volume Variable Temperature Zoning System up to 16 VAV/Zone
Controllers can be confi gured as voting zones, and additional
zone controllers can be non-voting zones. For VAV systems you
can have up to 58 total VAV/Zone Controllers in addition to the
HVAC unit controller for the VAV boxes.
The Unit Controller(s) are connected to a MiniLink communi-
cations interface which provides communications between all
controllers on the local communications loop and the System
Manager TS-L end-user interface, Modular System Manager
SD operator interface, Prism 2 operator interface, or CommLink
communication interface. The MiniLink provides for alarm poll-
ing of all VAV/Zone Controllers.
Each of the controllers are connected together and to the MiniLink
by means of local loop communications cable. All communication
wiring must be plenum-rated, minimum 18 gauge, 2-conductor,
twisted pair with shield cable. WattMaster can supply commu-
nication wire that meets this specifi cation and is color coded
for the network or local loop or if desired, Belden #82760 or its
equivalent wire may also be used.
The System Manager TS-L is an operator interface that can be
used for monitoring of the system. It has a color touch screen
display and intuitive graphical user interface.
In addition or as an alternative a CommLink communication
interface can be provided that allows for connection to any
computer which has the free Prism 2 software installed to pro-
vide for confi guring and monitoring of the system. Prism 2 is a
Windows
®
-based color graphical computer front end software
package designed by WattMaster. An optional IP Module is also
available to provide Internet connectivity to the control system.
Multiple Loop VAV/Zoning
If you have a multiple HVAC units that will be using VAV Ter-
minal Units or will be using a Zoning System and don’t have any
CV units you should select the Multiple Loop Zoning System.
On a Zoning System each local loop allows up to 16 VAV/Zone
Controllers can be confi gured as voting zones, and additional
controllers to be non-voting zones. For VAV systems you can have
up to 58 total VAV/Zone Controllers in addition to the HVAC
unit controller for the VAV boxes.
Each local loop is connected to its own MiniLink communications
interface which provides communications between all control-
lers on the local communications loop and the System Manager
TS-L end-user interface, Modular System Manager SD operator
interface, Prism 2 operator interface, and/or the CommLink com-
munication interface. The MiniLink provides for alarm polling
of all the zone controllers.
On this type of system the CommLink communications interface
is required and acts as the main hub for all the local loops on
the system and passes communications between and across all
the local loops . The wiring between the CommLink and all the
MiniLink devices is called the network loop
Each of the controllers on the local loops are connected together
and to that loops MiniLink by means of local loop communica-
tions cable. Each of the MiniLink devices are connected together
and to the CommLink on the network loop using network com-
munications cable. All communication wiring must be plenum-
rated, minimum 18 gauge, 2 conductor, twisted pair with shield
cable. WattMaster can supply communication wire that meets
this specifi cation and is color coded for the network loop or
local loop, or if desired, Belden #82760 or its equivalent wire
may also be used.
The System Manager TS-L is an operator interface that can be
used for monitoring of the entire control system. It has a color
touch screen display and intuitive graphical user interface. It
can be located on any local loop on the system. Multiple System
Manager TS-L operator interfaces can also be used if desired.
The CommLink communication interface is standard on this
type of system and allows for connection to any personal com-
puter which has the free Prism 2 software installed to provide
for confi guring and monitoring of the system. Prism 2 is a
Windows
®
-based color graphical computer front end software
package designed by WattMaster. An optional IP Module is also
available to provide Internet connectivity to the control system.
APPENDIX
43
VAV/Zone Controller Package
VAV/Zone Controller System Architecture
