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Daikin EWYT064CZI-A2 User Manual

Daikin EWYT064CZI-A2
59 pages
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D-EIMHP01505-22_00EN 1/59
REV
00
Date
31/05/2022
Supersedes
-
Air to water heat pump units with scroll compressors – split
version
EWYT~CZ(I/O)
Original Instructions
Installation and Maintenance Manual
D-EIMHP01505-22_00EN

Table of Contents

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Daikin EWYT064CZI-A2 Specifications

General IconGeneral
ModelEWYT064CZI-A2
CategoryHeat Pump
Cooling Capacity64 kW
Heating Capacity7.1 kW
Energy Efficiency Ratio (EER)3.5
RefrigerantR32
Power Supply220-240V, 50Hz
EER3.5
Noise Level (Indoor Unit)45 dB(A)
Net Weight (Indoor Unit)9 kg
Dimensions (Indoor Unit)295x790x223 mm

Summary

Introduction and Safety

Residual Risk Precautions

Lists safety precautions to prevent accidents during operation and maintenance.

Refrigerant Safety Information

Provides details on R32 refrigerant, its properties, and safety classification.

Safety Device Overview

Explains the integrated leak detection system and emergency fan functions.

Installation Site Requirements

Details necessary conditions and restrictions for indoor unit installation sites.

Mechanical Installation

Installation Safety

General safety rules for installation personnel and procedures.

Unit Handling and Lifting

Guidelines for safely handling and lifting the unit, including precautions.

Outdoor Unit Positioning

Guidelines for positioning and assembling the outdoor unit on a foundation.

Water Circuit Installation

Operating Limits and System Stability

Electrical Installation

Refrigerant Piping Connection

Piping Connection Precautions

Warnings and precautions for connecting refrigerant piping, emphasizing safety and R32 usage.

Pipe Brazing Procedure

Step-by-step instructions and precautions for brazing refrigerant pipe ends.

Connecting Piping to Outdoor Unit

Procedure for connecting refrigerant piping to the outdoor unit.

Connecting Piping to Indoor Unit

Procedure for connecting refrigerant piping to the indoor unit.

Refrigerant Piping Checks and Charging

Refrigerant Piping Checks

Steps to check for leaks and perform vacuum drying of the refrigerant piping.

Pressure Leak Test

Procedure for performing a pressure leak test on the refrigerant piping.

Vacuum Drying Procedure

Steps for performing vacuum drying to remove moisture from the system.

Refrigerant Charging

Steps for charging the refrigerant after vacuum drying.

Refrigerant Charging Precautions

Safety precautions and procedures for charging refrigerant.

Calculating Additional Refrigerant

Formula and method for calculating additional refrigerant charge.

Pre-charging and Post-Charge Checks

Procedures for pre-charging and performing final checks after refrigerant charging.

Maintenance Procedures

Refrigerant Circuit Diagrams

Unit Commissioning

Commissioning Checklist

Checklist and guidelines for commissioning the unit.

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