Carrier 30XAV - Control System Overview; Touch Pilot Control System; System Functionalities; Operating Modes

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2.1 - Control system
Touch Pilot is a system used to control the operation of
single-circuit and dual-circuit air-cooled liquid chillers
(30XAV / 30XAV-ZE).
This document may refer to optional components and
certain functions, options or accessories may not be
available for the specic unit.
2.2 - System functionalities
The system controls the start-up of the compressors
needed to maintain the desired heat exchanger entering
and leaving water temperature. It constantly manages the
operation of the fans in order to maintain the correct
condensing pressure in each circuit and monitors safety
devices that protect the unit against failure and guarantee
its optimal functioning.
Touch Pilot control system:
• Allows users to control the unit via the Touch Pilot
user interface (7-inch colour touch screen)
• Provides web connectivity technology
• Includes the trending functionality
• Supports Carrier Connect Services
(Remote connectivity, alarm notication, remote
access, performance and operation automatic
reporting, technical advice)
• Supports Carrier Advanced Plant System Manager for
multiple chillers conguration
• Provides direct BMS integration capabilities
(BACnet IP)
BACnetIP
BACnetIP
Standalonechiller
BuildingAutomationSystem
CarrierConnectServices
Chiller
plant
Chillers
Meters
Valves
Pumps
BuildingAutomationSystem
CarrierConnectServices
Tou chPilot
control
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2.3 - Operating modes
The control system can operate in three independent modes:
• Local mode: The unit is controlled by commands from
the user interface.
• Remote mode: The unit is controlled by dry contacts.
• Network mode: The unit is controlled by network
commands (CCN or BACnet). Data communication
cable is used to connect the unit to the CCN
communication bus.
The operating mode can be selected with the Start/Stop
button (see also section 4.3). When the Touch Pilot system
operates autonomously (Local or Remote), it retains all of
its control capabilities but does not offer any of the features
of the Network. The Network emergency stop command
stops the unit regardless of its active operating type.