Carrier VVT Zone - Introduction; What Is a VVT Zone Controller

VVT Zone Controller 1
What is a VVT Zone Controller?
The VVT Zone Controller (#OPN-VVTZC), a component of the i-Vu Open Control System, controls zone
temperature in single duct, fan powered, Variable Volume and Temperature (VVT
®
) applications. The VVT
Zone Controller with built-in actuator maintains zone temperature by operating the terminal fan and
regulating the flow of conditioned air into the space. Buildings with diverse loading conditions can be
supported by controlling the air source heating and cooling sources or supplemental heat. The VVT Zone
Controller provides dedicated control functions for single duct and fan box terminals with modulating heat, up
to 2 stages of ducted heat, or combination baseboard and ducted heat.
The i-Vu Open Control System uses linkage to exchange data between the zone terminals and their air source
to form a coordinated HVAC system. The system's air source controller, zone controllers, and bypass controller
are linked so that their data exchange can be managed by one zone controller configured as the VVT Master.
The following illustration shows the VVT Zone Controller in a typical i-Vu Open Control System.
VVT Zone
(OPN-VVTZC)
VVT Zone
(OPN-VVTZC)
VVT Zone
(OPN-VVTZC)
VVT Zone
(OPN-VVTZC)
VVT Bypass
(OPN-VVTBP)
MAN UAL ON WAR MER
Occupied
INFO COOLER
F
MAN UAL ON WAR MER
Occupied
INFO COOLER
F
MAN UAL ON WAR MER
Occupied
INFO COOLER
F
MAN UAL ON WAR MER
Occupied
INFO COOLER
F
Introduction