Daikin EWAQ150DAYN [11/524] Introduction

ESIE06-05 Introduction

Part 0

1 Introduction

1.1 About This Manual

Target group This service manual is intended for and should only be used by qualified engineers.

Purpose of this

manual

This service manual contains all the information you need to carry out the necessary repair and

maintenance tasks for the EWAQ 080~260 DAYN and EWYQ 080~250 DAYN.

EWAQ 080~ 260

DAYN

The Daikin EWAQ 080~260 DAYN packaged air-cooled water chillers:

■ Are designed for outdoor installation.

■ Are used for cooling applications.

■ Used refrigerant R410a.

■ Are available in 8 standard sizes with nominal cooling capacities ranging from 80 kW to 254 kW.

■ Have 3 types of units:

EWAQ 080~260 DAYNN: without hydraulic module, naked model

EWAQ 080~260 DAYNP: with hydraulic module: pump and expansion vessel

EWAQ 080~260 DAYNB: with hydraulic module: buffer tank, pump and expansion vessel

EWYQ 080~250

DAYN

The Daikin EWYQ 080~250DAYN packaged air-cooled water chillers:

■ Are designed for outdoor installation.

■ Are used for cooling and heating applications

■ Used refrigerant R410a.

■ Are available in 8 standard sizes with nominal cooling capacities ranging from 77kW to 252kW and

heating from 87,7 kW to 284kW.

■ Have 3 types of units:

EWAQ 080~250 DAYNN: without hydraulic module, naked model

EWAQ 080~250 DAYNP: with hydraulic module: pump and expansion vessel

EWAQ 080~250 DAYNB: with hydraulic module: buffer tank, pump and expansion vessel

Before starting up

the unit

Before starting up the unit for the first time, make sure it has been properly installed.