WattMaster Auto-Zone CV - CV-EX System Features; Figure 1-4: Typical CV-EX System

Auto-Zone CV & CV-EX Section 1
Systems Overview 1-5
CV-EX System Features
Figure 1-4: Typical CV-EX System
Below is a list of some of the many features available with the CV-EX system.
• CV-EX system supports from thirty one to one hundred twenty constant
volume units. For systems with thirty or less constant volume units, use
the CV system
• System Manager is housed in an attractive, plastic enclosure suitable for
wall mounting in the space and can be connected anywhere in the
communications network
• Complete modulating economizer control functions
• CommLink II interface included with the system. Provides connections for
computer and Remote Link (modem) for on site or remote
communications. Remote Link & computer are optional
• Trend Logging capability if connected to a personal computer with free
Prism, Windows

based software installed
Computer
(Optional)
CommLink II
Multiple Loop
System Manager
CV Controllers
Up to 60 Units with CV-EX System and
30 More per Expansion Kit Allowing
a Maximum of 120 Total Units on System
RS-485
9600 Baud
CV-EX System
Expansion Kit
CV-EX System
Expansion Kit
Supply
Air
Sensor
RS-485
Comm Loop
24 VAC
Economizer
(Actuator By Others)
* Outside
Air
Sensor
Room Sensor
with Optional
Override & Adj.
Typical Constant Volume Unit
NOTE: * Only One Outside Air Sensor
is Required per CV-EX System
24VAC
Loop # 1
MiniLink
Loop # 2
MiniLink
Loop # 3
MiniLink
Loop # 4
MiniLink
Network Loop
Local Loop
Local Loop
Local Loop
Loop #1
Loop #2
Loop #3
Loop #4
24VAC
24VAC
24VAC
24VAC
Generic Alarm
Dirty Filter Alarm
Shown
#1
#1
#1
#1
#30
#30
#30
#30
110VAC
Remote Link
(Optional)
24VAC
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