Introduction; About This Manual - Danfoss VACON NX Commissioning And Maintenance Manual

INTRODUCTION

4. INTRODUCTION
4.1

ABOUT THIS MANUAL

This manual provides information on commissioning and maintenance issues of the HXL120 cooling
unit. The manual is intended to be used by manufacturer
and/or end-user.
To follow the instructions in this manual, the reader must have a reasonable knowledge of
mechanics and electrics.
Only a qualified and authorized mechanic is allowed to perform commissioning
or maintenance of the HX-unit. A qualified and authorized electrician should
accompany the mechanic performing maintenance or commissioning on the
WARNING
unit.
This manual is divided into following chapters:
Chapter 1 SAFETY explains the symbols used in this manual and contains the general safety
instructions. Read the safety instructions before continuing.
Chapter 2 EU DIRECTIVE includes the EC declaration related to the product.
Chapter 3 RECEIPT OF DELIVERY includes type designation code information.
Chapter 4 INTRODUCTION explains how the HX-unit is built by looking into the unit process and
instrumentation. The idea is to give the reader a basic understanding of the process and control
philosophy. This chapter also includes specifications on correct ambient conditions for the HX-unit.
Chapter 5 COMMISSIONING provides information on how to install and how to start-up the unit.
The chapter explains, among other things, how the unit is to be filled with liquid and how the system
is to be de-aired. The chapter also shows the user the correct valve positions for start-up and how to
set up the HX control unit.
Chapter 6 UNIT SERVICE explains required maintenance and some repair instructions for the
components inside the cooling unit. More unit maintenance instructions can be found in the
component maintenance handbooks. They are found at the end of the HX-unit Commissioning and
Maintenance folder that is supplied with the unit.
Chapter 7 TROUBLESHOOTING includes fault tracing to help the user identify and solve a problem
when the HX control unit (air-cooled VACON
Chapter 8 TECHNICAL SPECIFICATION
Local contacts: http:/ / dr ives.danfoss.com/ danfoss- dr ives/ local - contacts/
own personnel as well as the customer
®
NXP 0009) has an active alarm or fault.
VACON 1 3
4