Daikin UAA-ST3M Bedienungsanleitung

INSTALLATION &

MAINTENANCE

MANUAL

AIR-COOLED CHILLER

(SINGLE SCREW COMPRESSOR)

UAA-ST3M

IM-UAA -0620(2)-DAIKIN

Part Number: C08019039757B

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⚠WARNING

Before starting the installation of the unit, please read this manual carefully. Starting up the unit is

absolutely forbidden if all instructions contained in this manual are not clear.

Key to symbols

Failure to comply with this instruction may damage the machine or affect its operation.

Note concerning safety in general or compliance with laws and regulations.

Note concerning electrical safety.

⚠WARNING

Electric shock hazard can cause personal injury or equipment damage. This equipment must be

properly grounded. Connection to, and service of, the MicroTech III control panel must be performed

only by personnel who are knowledgeable in the operation of this equipment.

⚠CAUTION

Static sensitive components. A static discharge while handling electronic circuit boards can cause

damage to the components. Discharge any static electrical charged by touching the bare metal inside

the control panel before performing any service work.

Never unplug any cables, circuit board terminal blocks, or power plugs while power is applied to the

panel.

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TABLE OF CONTENTS GUIDELINE

TABLE OF CONTENTS GUIDELINE II

1INTRODUCTION 1

General 1

Application 1

Nomenclature 2

2ABOUT SAFETY 3

Transportation 3

Lifting 3

Installation 4

3MAJOR COMPONENTS LOCATION 6

4WORKING PRINCIPLE AND TECHNICAL DATA 8

Working principle 8

Operating range 9

Chiller Physical Data 10

5HANDLING 11

Transportation 11

Receiving the machine 11

Lifting 11

6INSTALLATION 15

Installation and Foundation 15

Chiller Outline Dimension and Load Distribution 18

Chiller Piping 23

Electrical Installation 27

7MAINTENANCE 57

Daily Maintenance 57

About Refrigerant 57

Cleaning and Maintenance 58

Long Idle Period Maintenance 59

8SERVICE PROCEDURE 1

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1INTRODUCTION

General

IMPORTANT

•Maximum care should be taken to ensure correct installation and operation.

Correct maintenance of the unit is indispensable for its safety and

reliability. Contact Manufacturer's service team for maintenance.

Application

1.2.1 Purpose of the manual

The purpose of this manual is to allow the installer to carry out all required operations in order

to ensure proper installation of the machine, without causing any harm to people, animals and/or

objects.

All activities must be carried out in compliance with local laws and regulations.

1.2.2 Warning

This manual has been prepared as a technical support only. Daikin has prepared with the best of

their knowledge. No explicit or implicit warranty is provided about the completeness, accuracy

and reliability of its content. All data and specifications provided herein are subject to change

without prior notice from the manufacturer. Daikin specifically rejects any liability for any

direct or indirect damages, arose from or related to the use and/or interpretation of this manual.

All contents are Daikin copyright protected.

ATTENTION

This manual describes the features and procedures for UAA –cooling only series.

•All units are delivered with wiring diagram and Installation manual.

•WIRING DIAGRAMS AND DIMENSIONAL DRAWINGS MUST BE

CONSIDERED ESSENTIAL DOCUMENTS OF THIS MANUAL.

•If there are any incompatible between this manual and the two documents

mentioned above; please refer to the wiring diagram and dimensional

diagrams.

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Nomenclature

UAA 105 ST 3 M –F BB

Efficiency Class

BB - High Efficiency

Power Supply

F - 380 ~ 400V / 50Hz

Manufactured Country

M - Malaysia

Refrigerant Type

3 - R134a

Model

ST - Standard

Cooling Capacity

105 - 450 USRT

Chiller Name

UAA - Air cooled screw chiller

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2ABOUT SAFETY

Transportation

⚠WARNING

•Transportation must be carried out in compliance with local laws and regulations.

Lifting

⚠WARNING

•Lifting must be performed in accordance with the installation instructions in this

Manual. Manufacturer is not responsible for any equipment damage, personal

injury or death resulting from failing to comply with these requirements.

•The equipment must be lifted with the utmost attention and care. Avoid jolting

when lifting and lift the machine very slowly, keeping it perfectly level.

•It is prohibited to stay under the crane or equipment during lifting.

⚠CAUTION

•Lifting should be performed by experienced personnel who is familiar with the

provisions of law and local regulations, and who has been properly trained or has

experience with this type of equipment.

IMPORTANT

•It is advisable to add some insulation material between lifting ropes and machine

to avoid scratching the equipment.

⚠CAUTION

•The stability of the equipment during shipping must be ensured.

•Block equipment from sliding on lorries to prevent damage to the panels and base

frame. Avoid bumping, jolting and impacts during unloading and/or moving the

machine. Do not push or pull the equipment from any part other than the base frame.

Failure to follow above-mentioned instructions could cause serious damages for

which the manufacturer will not be held liable.

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Installation

Unit installation

⚠WARNING

Installation should be performed by experienced personnel. Avoid installing the equipment in a place

that could be dangerous during maintenance operations, such as (but not limited to) platforms without

parapets or railings, or areas not complying with the clearance requirements.

⚠CAUTION

•Installation must be performed in accordance with the installation instructions in

this Manual.

•If the unit operates cooling mode when ambient temperature is lower than 5°C

and wind speed is more than 10 m/s, please consult manufacturer.

IMPORTANT

•Install a strainer on the inlet to each heat exchanger. Failure to install a strainer

allows solid particles and/or welding slags to enter the heat exchanger. Installation

of a strainer with mesh size recommended by manufacturer (refer to page 16). The

manufacturer will not hold responsible for any damage to heat exchanger due to

blockage.

•All other water piping outside the chiller must be protected against freezing.

•Adjust the anti-vibration mountings beneath the equipment before connecting

water pipe.

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Electrical installation

⚠CAUTION

•All electrical connections to the machine must be carried out in compliance with

laws and regulations in force.

•All installation, operating and maintenance activities must be carried out by

qualified personnel.

•Please refer to the specific wiring diagram for the machine that you have

purchased, and which was sent with the unit.

•Should the wiring diagram not come with the machine, please contact your dealer

for further action.

•Use copper conductors only. Failure to use copper conductors could cause

overheating or corrosion at the connection points and damages the unit.

•To avoid interference, all control wires must be installed separately from the

power wires. Use separate electrical conduits for this purpose.

•Before servicing the machine in any way, open the general disconnecting switch

on the machine's main power supply.

•When the machine is off, but the disconnector switch is in the closed position,

unused circuits are live as well.

•Never open the terminal board box of the compressors before having opened the

unit's general disconnecting switch.

•In installations with power supply lines longer than 50 meters, inductive coupling

between phases and between phase and earth generates significant

electromagnetic field.

•In order to limit these phenomena, it is good practice to lay out the phase wires

symmetrically, as described in the figure:

•Chiller unit compressors are single-direction rotation compressors and can be damaged if

rotated in the wrong direction. For this reason, proper phasing of electrical power is

important. Terminal block indicator (R, S, T). R=L1, S=L2, T=L3

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3MAJOR COMPONENTS LOCATION

1 System (UAA105- UAA220)

Figure 1 Chiller Front View

Figure 2 Chiller View (1 System)

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