Daikin EWAD650BJYNN/Q [11/346] Part 0

ESIE 07-04 Introduction

Part 0

1Introduction

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 EWAD650-C18BJYNN, EWAD550-C12BJYNN/Q,

EWAD650-C21BJYNN/A and EWAD600-C10BJYNN/Z.

4 different lines EWAD-BJYNN line is available with two different efficiencies in order to satisfy every kind of

requirements. Acoustic flexibilty down to 65 dBA thanks to different noise level versions:

P Standard efficiency with COP up to 3.15 (nominal conditions and only compressor power input).

P EWAD-BJYNN (standard noise – 79.0 / 80.0 dBA) with low noise option OPRN and OPLN.

P EWAD-BJYNN/Q (super quiet – 65.0 / 66.5 dBA)

P High efficiency with COP up to 3.70 (nominal conditions and only compressor power input).

P EWAD-BJYNN/A (standard noise – 79.0 / 80.0 dBA) with low noise option OPRN and OPLN.

P EWAD-BJYNN/Z (super quiet – 65.0 / 66.5 dBA)

OPRN-option Standard version with additional base frame for compressors and oil separators installed on rubber

isolators to eliminate the vibrations. Discharge flexible pipes and condenser fans rotating at fixed low

speed.

OPLN-option The main components are the same of the OPRN version (same cooling capacity) but to reduce the

sound level the compressors, the oil seperators and delivery and suction pipes are located inside a

cabinet which is sound insulated with highly absorbent acoustic material. Discharge flexible pipes and

condenser fans rotating at fixed low speed are supplied as standard.

/Q and /Z The main components are the same of the OPRN version (same cooling capacity) but to reduce the

sound level the compressors, the oil seperators and delivery and suction pipes are located inside a

cabinet which is sound insulated with highly absorbent acoustic material. Discharge flexible pipes and

condenser fans rotating at extremely low speed and fan speed control device are supplied as

standard.