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AERMEC NRA Series User Manual

AERMEC NRA Series
86 pages
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TECHNICAL MANUAL
Air/water chillers and heat pumps and condensing units with scroll
compressors
nra
INRATV. 0705 4034403_02
replace il 4034403_01 del 0607
ESPAÑOL pag.42 ENGLISH pag.2
MANUAL TÉCNICO
Enfriadoras y bombas de calor aire agua y motocondensadores con
compresores scroll
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AERMEC NRA Series Specifications

General IconGeneral
BrandAERMEC
ModelNRA Series
CategoryAir Compressor
LanguageEnglish

Summary

Compliance Declaration

Product Identification

Details on product identification for compliance purposes.

General Standards

Technical Plate

Information found on the unit's technical identification plate.

Unit Description and Selection

Models Available

Overview of the various models offered in the NRA range.

Versions Available

Description of available operational versions of the units.

Description of Components

Refrigerating Circuit

Description of the unit's refrigerating circuit components.

Frame and Fans

Details on the unit's frame and fan system.

Hydraulic Components

Description of components related to the hydraulic system.

Safety and Control Components

Critical components for safe and proper operation.

Electrical Components

Overview of the unit's electrical system components.

Electronic Regulation

Explanation of the unit's electronic regulation system.

Accessories

Technical Data

Nominal Reference Conditions

Specifies the nominal conditions for technical data.

Technical Data, Standard Versions

Performance specifications for standard unit versions.

Technical Data, High Efficiency Versions

Technical Data, Silenced Versions

Technical Data, Heat Pump Versions H

Selection Criteria

Criteria for selecting the appropriate unit model.

Operating Limits

Specifies the operating limits for the units.

Project Data

Key project data required for unit selection.

Correction Coefficients

Cooling and Input Capacities

Correction factors for cooling capacity and input power.

Heating and Input Capacities

Correction factors for heating capacity and input power.

For At Other Than Nominal

Correction factors for temperature differences other than nominal.

Fouling Factors

Factors to account for exchanger fouling.

Ethylene Glycol Solution

How to Read the Glycol Curves

Instructions for interpreting glycol correction curves.

Pressure Drops

Pressure Drops, Evaporator

Pressure drops across the evaporator heat exchanger.

Pressure Drops, Condenser

Pressure drops across the condenser heat exchanger.

Pressure Drops, Water Filter

Pressure drops across the water filter.

Accumulation

Maximum Water Content

Maximum water content compatible with the expansion tank.

Effective Pressure for the System

Low Pressure Pumps

Effective pressure data for low-pressure pump units.

High Pressure Pumps

Effective pressure data for high-pressure pump units.

Desuperheaters

Standard Versions / High Efficiency

Performance data for standard and high efficiency desuperheaters.

Low Noise Version

Performance data for low-noise desuperheater versions.

Values Different from the Nominal Value

Correction factors for values deviating from nominal.

Total Recovery

Pressure Drops

Pressure drops associated with total heat recovery units.

Sound Data

Capacity Control

Calibration of Check and Safety Parameters

Thermomagnetic Switches Fans

Information on thermomagnetic switches for fans.

Thermomagnetic Switches Compressors

Information on thermomagnetic switches for compressors.

Transducers Pressure Switches

Information on pressure transducers and switches.

High Pressure Switch

Function and calibration of the high pressure switch.

Low Pressure Switch

Function and calibration of the low pressure switch.

Anti-freeze Control

Operation of the anti-freeze control system.

Dimensions

Dimension Tables

Tables detailing the physical dimensions of the units.

Weights and Centres of Mass

Distribution Weights Percentage on Rests Without Water

Weight distribution data for units without water.

Distribution Weights Percentage on Rests With Water

Weight distribution data for units with water.

Additional Weight Versions for Versions with Desuperheater and Total Recovery

Additional weight information for specific unit configurations.

Instructions for Lifting

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