Carrier Touch Pilot Control Series Control Manual

1 - GENERAL DESCRIPTION1.1 - GeneralThe goal of this manual is to give a broad overview of the mainfunctions of the Touch Pilot control system used to control andmonitor the operation of 19PV water-cooled chillers using MagLevcompressors with an integrated variable frequency drive.Instructions in this manual are given as a guide to good practicein the installation, start-up and operation of the control system.This document does not contain full service procedures for thecorrect operation of the equipment.The support of a qualified Manufacturer Service Engineer isstrongly recommended to ensure optimal operation of theequipment as well as the optimization of all available functionalities.Note that this document may refer to optional components andcertain functions, options or accessories may not be available forthe specific unit.IMPORTANT: All screenshots of the user interface providedin this manual include text in English. After changing thelanguage of the system, all labels will be in the languageselected by the user.Please read all instructions prior to proceeding with any work.Pay attention to all safety warnings.The information provided herein is solely for the purpose ofallowing customers to operate and service the equipment and it isnot to be reproduced, modified or used for any other purposewithout the prior consent of the Manufacturer.1.2 - AbbreviationsIn this manual, the refrigerant circuits are called circuit A andcircuit B.Compressors in circuit A are labelled A1, A2 and compressors incircuit B are labelled B1 and B2.The following abbreviations are used frequently:BMS Building Management SystemEWT Entering Water TemperatureEXV Electronic Expansion ValveLED Light Emitting DiodeLEN Internal communication bus linking the controller andthe boardsLWT Leaving Water TemperatureMagLev Magnetic LevitationOAT Outdoor Air Temperature4