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AERMEC NRA F 550 - User Manual

AERMEC NRA F 550
72 pages
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AERMEC S.P.A.
ISO 9001 - Cert. nº 0128/3
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INRAfPW
0405
6871970.00
Refrigeratori aria - acqua
Air to water chillers
NRA free cooling
R407C
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Question and Answer IconNeed help?

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Summary

Unit Description

Unit Selection

Unit Selection Rules and Example

Guides unit selection with configuration rules and a practical example.

Configurator

Configuration Fields and Options

Details configuration fields for unit selection and available options.

Description of Components

Refrigerant Circuit Components

Describes components within the refrigerant circuit.

Safety and Control Devices

Microprocessor Functions

Lists microprocessor functions and controls.

Microprocessor Operations

Compressor Control and Alarms

Explains compressor control, timing, and alarm management.

Technical Data

Cooling Capacity and Power Absorption Data

Presents technical data for cooling capacity and power absorption.

Main Technical Data

General Technical Specifications

Lists general technical specifications and electrical data.

Selection Criteria

Unit Selection Guide and Example

Provides guidance on unit selection with a detailed example.

Evaluation of Operating Efficiency

Free-Cooling Efficiency Comparison

Compares energy efficiency between free-cooling and standard modes.

Operating Limits and Design Data

Cooling Mode Limits and Design Parameters

Specifies operating limits and design data for cooling mode.

Cooling Capacity and Input Power Without Free-Cooling

TAV 1: Correction Factors

Correction factors for cooling capacity and absorbed power.

Correction Factors for Low Noise Versions

TAV 2: Factors for 500-700 Series

Correction factors for low noise versions of larger unit sizes.

Cooling Capacity with Only Free-Cooling

TAV 3: Free-Cooling Correction Factors

Correction factors for cooling capacity in free-cooling mode.

Pressure Drops

TAV 4 & 5: Pressure Drop Charts

Charts showing pressure drops with and without free-cooling.

Correction Factors

TAV 6 & 7: Glycol, Delta T, and Fouling Factors

Correction factors for glycol, delta T, and fouling.

Glycol Solution Corrections

TAV 8 & 9: Power, Pressure Drop, and Flow Rate Corrections

Corrections for power, pressure drop, and flow rate with glycol.

Versions with Storage Tank

Tank Unit Technical Data

Technical data for units with storage tanks.

Working Head Curves

TAV 11 & 12: Head Curves

Curves showing working head for units with and without free-cooling.

Protection Device Settings

External Hydraulic Circuit

Inside Hydraulic Circuit

Chiller Circuit

Weights and Center of Gravity

Unit Installation and Use

Positioning and Clearances

Wiring Connections

Electronic Board

Board Diagram and Terminal List

Shows the electronic board layout and terminal functions.

Power Connections

Safety and Remote Control Wiring

Electronic Board Diagram

Board Diagram with Storage Tank

Shows the electronic board layout for units with storage tanks.

Power Connections (with Storage Tank)

Safety and Remote Control Wiring (with Storage Tank)

Load Connections (with Storage Tank)

Summary

Unit Description

Unit Selection

Unit Selection Rules and Example

Guides unit selection with configuration rules and a practical example.

Configurator

Configuration Fields and Options

Details configuration fields for unit selection and available options.

Description of Components

Refrigerant Circuit Components

Describes components within the refrigerant circuit.

Safety and Control Devices

Microprocessor Functions

Lists microprocessor functions and controls.

Microprocessor Operations

Compressor Control and Alarms

Explains compressor control, timing, and alarm management.

Technical Data

Cooling Capacity and Power Absorption Data

Presents technical data for cooling capacity and power absorption.

Main Technical Data

General Technical Specifications

Lists general technical specifications and electrical data.

Selection Criteria

Unit Selection Guide and Example

Provides guidance on unit selection with a detailed example.

Evaluation of Operating Efficiency

Free-Cooling Efficiency Comparison

Compares energy efficiency between free-cooling and standard modes.

Operating Limits and Design Data

Cooling Mode Limits and Design Parameters

Specifies operating limits and design data for cooling mode.

Cooling Capacity and Input Power Without Free-Cooling

TAV 1: Correction Factors

Correction factors for cooling capacity and absorbed power.

Correction Factors for Low Noise Versions

TAV 2: Factors for 500-700 Series

Correction factors for low noise versions of larger unit sizes.

Cooling Capacity with Only Free-Cooling

TAV 3: Free-Cooling Correction Factors

Correction factors for cooling capacity in free-cooling mode.

Pressure Drops

TAV 4 & 5: Pressure Drop Charts

Charts showing pressure drops with and without free-cooling.

Correction Factors

TAV 6 & 7: Glycol, Delta T, and Fouling Factors

Correction factors for glycol, delta T, and fouling.

Glycol Solution Corrections

TAV 8 & 9: Power, Pressure Drop, and Flow Rate Corrections

Corrections for power, pressure drop, and flow rate with glycol.

Versions with Storage Tank

Tank Unit Technical Data

Technical data for units with storage tanks.

Working Head Curves

TAV 11 & 12: Head Curves

Curves showing working head for units with and without free-cooling.

Protection Device Settings

External Hydraulic Circuit

Inside Hydraulic Circuit

Chiller Circuit

Weights and Center of Gravity

Unit Installation and Use

Positioning and Clearances

Wiring Connections

Electronic Board

Board Diagram and Terminal List

Shows the electronic board layout and terminal functions.

Power Connections

Safety and Remote Control Wiring

Electronic Board Diagram

Board Diagram with Storage Tank

Shows the electronic board layout for units with storage tanks.

Power Connections (with Storage Tank)

Safety and Remote Control Wiring (with Storage Tank)

Load Connections (with Storage Tank)

AERMEC NRA F 550 Specifications

General IconGeneral
BrandAERMEC
ModelNRA F 550
CategoryChiller
LanguageEnglish

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