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AERMEC NXW 1250 - User Manual

AERMEC NXW 1250
56 pages
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CHILLERS- Technical manual - installation - maintenance
NXW
INXWPY. 1004. 4438805_00
EN
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Table of Contents

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Summary

General Warnings

Safety Precautions and Installation

Safety guidelines and installation requirements for the unit.

Description and Choice of the Unit

Unit Description and Choice Details

Description of Components

Electronic Regulation

Explanation of the unit's electronic control system.

Technical Data

Standard Version - L Size Data

Technical specifications for standard 'L' size units.

Standard Version H Size Data

Standard Version E Size Data

Operating Limits

Standard Version Operating Limits

Diagram illustrating operating limits for standard version.

Condenserless Version Operating Limits

Diagram illustrating operating limits for condenserless version.

Design Data (Pressure Equipment)

Corrective Factor

Cooling Capacity and Input Power

Correction Factors for ΔT Variation (Cooling)

Cooling Capacity Version E

Correction Factors for ΔT Variation (Version E)

Heating Capacity with Desuperheater

Heating Capacity with Total Recovery

Total Pressure Drops

Glycol

Safety and Check Parameter Setting

Capacity Control

Selection and Place of Installation

Positioning

Minimum Technical Spaces

Required minimum clearances around the unit for installation.

Hydraulic Circuit

System Load Procedure

Procedure for filling and pressurizing the hydraulic system.

Percentage Distribution of Weights on Supports (Version - Sizes 0500 to 0750)

Percentage Distribution of Weights on Supports (Version - Sizes 0800 to 1400)

Percentage Distribution of Weights on Supports (Version H - Sizes 0500 to 0750)

Percentage Distribution of Weights on Supports (Version H - Sizes 0800 to 1400)

Percentage Distribution of Weights on Supports (Version L - Sizes 0800 to 1400)

Percentage Distribution of Weights on Supports (Version HL - Sizes 0500 to 750)

Percentage Distribution of Weights on Supports (Version HL - Sizes 0800 to 1400)

Electrical Wirings

Recommended Electric Cable Sections

Guidance on selecting appropriate electric cable sizes.

Connection to Power Supply

Electrical Power Connection

Control and First Start-Up

Preparation for Commissioning

Pre-start-up checks and requirements for commissioning.

First Commissioning of the Machine

Steps for the initial start-up and operation of the unit.

Operation Characteristics

Anti-Freeze Alarm

Function and settings of the anti-freeze alarm.

Water Flow Rate Alarm

Alarm triggered by insufficient water flow.

Regular Maintenance

Hydraulic Circuit Maintenance

Checks for hydraulic circuit components and coolant.

Electric Circuit Maintenance

Checks for electrical safety devices and connections.

Extraordinary Maintenance

Loading Procedure

Summary

General Warnings

Safety Precautions and Installation

Safety guidelines and installation requirements for the unit.

Description and Choice of the Unit

Unit Description and Choice Details

Description of Components

Electronic Regulation

Explanation of the unit's electronic control system.

Technical Data

Standard Version - L Size Data

Technical specifications for standard 'L' size units.

Standard Version H Size Data

Standard Version E Size Data

Operating Limits

Standard Version Operating Limits

Diagram illustrating operating limits for standard version.

Condenserless Version Operating Limits

Diagram illustrating operating limits for condenserless version.

Design Data (Pressure Equipment)

Corrective Factor

Cooling Capacity and Input Power

Correction Factors for ΔT Variation (Cooling)

Cooling Capacity Version E

Correction Factors for ΔT Variation (Version E)

Heating Capacity with Desuperheater

Heating Capacity with Total Recovery

Total Pressure Drops

Glycol

Safety and Check Parameter Setting

Capacity Control

Selection and Place of Installation

Positioning

Minimum Technical Spaces

Required minimum clearances around the unit for installation.

Hydraulic Circuit

System Load Procedure

Procedure for filling and pressurizing the hydraulic system.

Percentage Distribution of Weights on Supports (Version - Sizes 0500 to 0750)

Percentage Distribution of Weights on Supports (Version - Sizes 0800 to 1400)

Percentage Distribution of Weights on Supports (Version H - Sizes 0500 to 0750)

Percentage Distribution of Weights on Supports (Version H - Sizes 0800 to 1400)

Percentage Distribution of Weights on Supports (Version L - Sizes 0800 to 1400)

Percentage Distribution of Weights on Supports (Version HL - Sizes 0500 to 750)

Percentage Distribution of Weights on Supports (Version HL - Sizes 0800 to 1400)

Electrical Wirings

Recommended Electric Cable Sections

Guidance on selecting appropriate electric cable sizes.

Connection to Power Supply

Electrical Power Connection

Control and First Start-Up

Preparation for Commissioning

Pre-start-up checks and requirements for commissioning.

First Commissioning of the Machine

Steps for the initial start-up and operation of the unit.

Operation Characteristics

Anti-Freeze Alarm

Function and settings of the anti-freeze alarm.

Water Flow Rate Alarm

Alarm triggered by insufficient water flow.

Regular Maintenance

Hydraulic Circuit Maintenance

Checks for hydraulic circuit components and coolant.

Electric Circuit Maintenance

Checks for electrical safety devices and connections.

Extraordinary Maintenance

Loading Procedure

AERMEC NXW 1250 Specifications

General IconGeneral
BrandAERMEC
ModelNXW 1250
CategoryChiller
LanguageEnglish

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