Daikin EWYT050CZN-A2 User Manual

REV 00
Date 04/2021
Supersedes /
Installation, Maintenance and Operation Manual
DEIMHP0140521_00EN
Air to water heat pump units with scroll compressors
EWYT~CZ / EWAT~CZ

Daikin EWYT050CZN-A2 Specifications

General

Brand	Daikin
Model	EWYT050CZN-A2
Category	Heat Pump
Language	English

Summary

1. Introduction

1.1. Precautions Against Residual Risks

General safety precautions and potential hazards during unit operation and maintenance.

1.3. Refrigerant Information

Details on R32 refrigerant, its properties, flammability, and safety considerations.

1.4. Installation Information

Guidelines for unit installation location, ventilation, and compliance with safety standards.

1.4.1. Machinery Room Requirements

1.4.2. Refrigerant Detector Requirements

4. Mechanical Installation

4.1. Installation Safety Precautions

Safety measures for personnel involved in mechanical installation.

4.2. Handling and Lifting

4.2.1. Lifting Mono Unit

4.2.2. Lifting Dual Unit

4.3. Positioning and Assembly

Requirements for unit positioning, foundation, and leveling for stable installation.

4.4. Minimum Space Requirements

4.7. Water Circuit Connection

4.7.1. Water Piping

4.7.2. Flow Switch Function

4.7.3. Water Circuit Connection Preparation

4.7.5. Hydraulic Diagram

4.11. Operation Limits

Graphs illustrating operating ranges for cooling and heating modes based on ambient and water temperatures.

4.12. Operating Stability and Minimum Water Content

4.13. Expansion Vessel Calibration

4.13.1. Expansion Vessel Calibration Examples

4.14. Antifreeze Protection Methods

5. Electrical Installation

5.1. General Electrical Specifications

General guidelines for electrical connections, compliance, and safety.

5.2. Electric Connections

Details on connecting power supply, phase sequence, and terminal requirements.

5.2.1. Cable Requirements

5.2.3. Safety Device Requirements

Requirements for residual current devices, fuses, and wiring protection.

5.3. Phase Unbalance

6. Operator's Responsibilities

7.2. Routine Maintenance

7.2.1. Air Heat Exchanger Maintenance

7.2.2. Electrical Installation Maintenance

Safety precautions and checks for electrical maintenance activities.

7.2.4. Refrigerant Circuit Scheme (MONO EWYT~CZ)

7.2.4. Refrigerant Circuit Scheme (MONO EWAT~CZ)

7.2.4. Refrigerant Circuit Scheme (DUAL EWYT~CZ)

7.2.4. Refrigerant Circuit Scheme (DUAL EWAT~CZ)

9. First Startup Checks