This system is designed to allow a service person or building owner to configure and operate it. Flexible for every application, the system maintains precise temperature control by regulating the flow of conditioned air into the building.
User interface – The VVT zoning system is designed to allow a service person or building owner to configure and operate the VVT bypass controller and zone controllers, a linkage-compatible air source and all other networked devices through the system pilot user interface. The System Pilot’s backlit, alphanumerical Liquid Crystal Display (LCD) and rotary knob design allow the user to navigate through the menus, select desired options and modify data with ease. All VVT zoning system maintenance, configuration, setup and diagnostic information is available through the Level II communications port to allow data access by the System Pilot or an attached computer running the ComfortVIEWTM software.
Flexibility for every application – The system maintains precise temperature control in the space by regulating the flow of conditioned air into the space using the zone and bypass controllers. Buildings with diverse load conditions can be supported by controlling reheat applications, including two-position hot water, modulating hot water, up to 3-stage electric heat or combination baseboard and ducted heat.
The VVT zoning system offers zone level flexibility with its expanded range of compatible zone sensors – including simple space temperature sensors up to fully network compatible devices.
Linkage system compatibility – When linked to a Carrier linkage system, the VVT zoning system components provide numerous features and benefits such as weighted average demand for system operation, intelligent supply air temperature reset, set point averaging, global set point schedule, and occupancy scheduling. Duct static reset for the air source is provided, based on terminal requirements.
Additional control features – The VVT zoning system components provide additional control features such as occupied/unoccupied scheduling initialised via the network. The VVT zone controller offers override invoked from a wall sensor during unoccupied hours from 1 to 1440 minutes in 1-minute increments.
Optional Indoor Air Quality (IAQ) control or relative humidity monitoring are also available.
Simple actuator connection – The VVT zone controller control assembly contains an integral actuator assembly, field mounted to the VVT terminal damper shaft, similar to the mounting of a standard actuator. The VVT zone controller is designed for vertical or horizontal mounting.
Ease of installation – The VVT zoning system components are provided with removable connectors for power and communications. Non-removable screw type connectors are used for inputs. The removable connectors are designed so that they can be inserted one way to prevent installation errors. The VVT zone controller also provides an RJ-14 modular phone jack for the Network Service tool connection to the module via the Carrier communicating network.
Remote room sensors (with or without LCD display).
Wall- our duct- mounted CO2 sensor to monitor indoor air quality levels.
ComfortView software provides on-site or remote monitoring facility.
Outdoor-air sensor (HH79NZ039) reports the outdoor-air temperature to the communication bus. The information can be used to lock out heating or cooling modes when the temperature is not within user-configured limits. The outdoor-air sensor is needed when an economizer is used.
Supply air temperature sensor (33ZCSENSAT) is required for heating applications or stand-alone operation.
Duct temperature sensor (33ZCSENDAT) is required for use with a bypass controller and must be installed in the supply air duct.