Introduction to the Design GuideThis Design Guide is a tool intended to facilitate the sizing of systems in which VLT 6000 HVAC frequencyconverters are used.HVAC stands for Heating Ventilation Air-Conditioning.This Design Guide progresses step-by-step through the different procedures required for selecting, installing andprogramming a VLT 6000 HVAC.The Design Guide forms part of the literature concept supplied with VLT 6000 HVAC. However, the Design Guideis the most comprehensive document available.When a VLT 6000 HVAC is supplied, it is accompanied by Operating Instructions and a Quick Setup Guide. Seethe section Other Literature.Operating Instructions: Describe how to ensure optimum mechanical and electrical installation, and alsodeal with commissioning and service. The Operating Instructions furthermore pro-vide a description of the software parameters, thereby ensuring that you can easilyfit the VLT 6000 HVAC into your application.Quick Setup Guide: Helps you get your VLT 6000 HVAC installed and commissioned quickly.Design Guide: Used when designing systems with VLT 6000 HVAC. The Design Guide gives alluseful information about the VLT 6000 HVAC and HVAC systems. There is a se-lection tool for you to choose the right VLT 6000 HVAC with the relevant optionsand modules. The Design Guide has examples of the most common types of HVACapplications. In addition, the Design Guide has all information relating to SerialCommunication.This Design Guide is split in four sections that have information about VLT 6000 HVAC.Introduction to HVAC: This section tells you the advantages that can be obtained by using frequencyconverters in HVAC systems. Furthermore, you can read about the way a fre-quency converter operates and about the advantages of the VLT 6000 HVAC, suchas AEO - Automatic Energy Optimisation, RFI filter and other HVAC-relevant func-tions.There are also examples of applications and information is given about Danfossand CE-labelling.The specification section deals with the requirements relating to being allowed tosupply and install frequency converters. This section can be used in contractdocuments, whereby the total list of requirements relating to frequency convertersis determined.The section ends with an Ordering Guide that makes it easier for you to specifyand order a VLT 6000 HVAC.VLT® 6000 HVAC SeriesMG.61.B5.02 - VLT ® is a registered Danfoss trademark 7Introduction to HVAC