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Daikin EWAQ~G-SS User Manual

Daikin EWAQ~G-SS
22 pages
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D-EIMAC01207-15EN - 1/22
Air Cooled Chiller Multiscroll
EWAQ~G-
SS (Standard Efficiency - Standard Noise)
SR (Standard Efficiency - Reduced Noise)
XS (High Efficiency - Standard Noise)
XR (High Efficiency - Reduced Noise)
Refrigerant: R410A
Original Instructions
Installation, Operation and Maintenance Manual
DEIMAC01207-15EN
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Daikin EWAQ~G-SS Specifications

General IconGeneral
TypeAir Cooled Chiller
RefrigerantR-410A
Compressor TypeScroll
Energy EfficiencyHigh efficiency
Dimensions (L x W x H)Variable depending on the specific model within the series. Consult the specific datasheet.
WeightVariable depending on the specific model within the series. Consult the specific datasheet.

Summary

Unit Overview and Handling

Unit Description

Explains the water chiller's function and main components like compressors, condenser, and expansion valve.

General Information

Details provided with the unit: diagrams, DoC, forming an integral part of the manual.

Receiving the Unit

Inspect for damage upon arrival and report issues to the carrier and manufacturer.

Storage Guidelines

Protect unit from environmental factors during storage before installation.

Installation and Site Preparation

Positioning and Assembly

Base requirements, anti-vibration supports, and minimum installation distances.

Handling and Lifting

Safe methods for moving the unit, emphasizing the use of designated lifting points.

Noise and Sound Protection

Unit noise levels and methods for reduction if required by installation site.

Operating Principles and Limits

Operating Limits Overview

Graphical representation of acceptable ambient and water temperatures for EWAQ G SS.

EWAQ G SR Operating Limits

Graphical representation of acceptable ambient and water temperatures for EWAQ G SR.

EWAQ G XS Operating Limits

Graphical representation of acceptable ambient and water temperatures for EWAQ G XS.

EWAQ G XR Operating Limits

Graphical representation of acceptable ambient and water temperatures for EWAQ G XR.

Water System Connections

Hydraulic Circuit Design

Guidelines for designing the water circuit to minimize elbows and vertical changes for efficiency.

Water System Requirements

Essential components for the water system, including pipes, valves, and filters.

Water Circuit Preparation

Steps for cleaning pipes and connecting the water circuit to prevent dirt ingress.

Pipe Insulation

Importance of insulating water pipes to prevent condensation and freezing.

Water Treatment and Anti-freeze

Water Treatment Guidelines

Water quality and treatment to prevent corrosion, scale, and ensure optimal heat exchange.

Water Flow and Volume

Minimum and maximum water flow rates for different EWAQ-G models.

Anti-freeze Protection Methods

Methods to prevent freezing of evaporators and recovery exchangers.

Electrical System and Wiring

Electrical System Specifications

Requirements for connecting the unit to a TN power supply system and compliance.

Wiring at Installation Site

On-site wiring operations must be performed by authorized technicians.

Circuit and Wiring Requirements

Ensuring independent power supply and installing safety devices.

Unit Power Supply Connection

Guidelines for connecting the power circuit to the unit's terminals.

Pre-Start Up Procedures

Interconnecting Wires

Connecting clean contacts and remote inputs, ensuring pump operation.

Before Start-up

Initial checks by authorized personnel before the unit's first start-up.

Pre-Start Up Checks

Comprehensive checklist of essential tasks before first operation.

Isolation and Shut-off Valves

Ensuring all isolation and shut-off valves are fully open before start-up.

Operation, Maintenance, and Guarantees

User Responsibilities

User's role in understanding operation, maintenance, and reporting issues.

Periodical Maintenance Program

Routine maintenance activities required for unit longevity and performance.

Service and Limited Guarantee

Unit testing, warranty conditions, and importance of maintenance contracts.

Mandatory Periodical Checks

Specific periodic controls required for certain unit categories as per European Directive.

Specific Procedures and Information

Bleeding Refrigerant Gas

Safe procedure for bleeding refrigerant gas from the safety valve.

Refrigerant Information

Details on R410A refrigerant, its GWP, and leak inspection requirements.

Product Lifespan

Information regarding the expected operational lifespan of the unit.

Disposal Guidelines

Instructions for environmentally responsible disposal of unit components.

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