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AERMEC NRP 0240 - User Manual

AERMEC NRP 0240
52 pages
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INRPPY.12.01.5806715_00
MULTIPURPOSE UNITS FOR 2|4-PIPE SYSTEMS - Technical manual
NRP 0200-0750
REVERSIBLE HEAT PUMPS
• OUTDOOR UNIT
HIGH EFFICIENCIES
EN

Table of Contents

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Summary

Description of the Unit

For 2-pipe systems

Details for 2-pipe system units, covering applications like hotels.

For 4-pipe systems

Details for 4-pipe system units, for shopping centres and offices.

Configurator

Basic Operating Layouts for 2-Pipe System

Cold Water Production Only to System

Diagram illustrating cold water production for the system in a 2-pipe configuration.

Basic Operating Layouts for 4-Pipe System

Cold Water Production Only to System

Diagram showing cold water production for the system in a 4-pipe configuration.

Description of Components

Cooling Circuit

Details on the scroll compressors, heat exchanger, and refrigerant circuit components.

Standard Hydraulic Circuit

Description of standard hydraulic components like filters, flow switches, and air vents.

Safety and Control Components

Explanation of safety components like pressure switches, transducers, and safety valves.

Electric Control and Power Board

Overview of the electrical board, including transformer, contactors, and electronic controller.

Accessories

Mechanical Accessories

Details on mechanical accessories such as anti-vibration mounts and protection grids.

Electric Accessories

Description of electric accessories like graphical displays and communication interfaces.

Technical Data

Operational Limits

Cooling Mode

Defines the operational limits for cooling mode, including temperature ranges and diagrams.

Heating Mode

Specifies the operational limits for heating mode, including temperature ranges and diagrams.

Corrective Factors for Data Different Than Nominal in Cooling Mode

Yields and Absorption Different Than Nominal

Provides correction factors for cooling capacity and input power based on different conditions.

Total Pressure Drops 2|4 Pipe Units

System Side Cold Water Production (2 pipes)

Graphs illustrating pressure drops for cold water production in 2-pipe systems.

Useful Static Pressures 2|4-Pipe System

Low Static Pressure Pumps in Cooling Mode (System Side)

Graphs showing available static pressure for low static pressure pumps in cooling mode.

Ethylene Glycol Solutions

How to Interpret Glycol Curves

Guide on interpreting glycol curves for calculating correction factors and glycol percentages.

Expansion Vessel Calibration

Minimum Water Content

Sound Data

Calibrations of Safety and Control Parameters

General Warnings

Installation

Guidance on unit installation to ensure proper maintenance and repair access.

Warnings Regarding Safety and Installation Standards

Emphasizes the need for qualified technicians and compliance with national legislation.

Product Identification

Receipt of the Product and Installation

Selection and Place of Installation

Guidelines for selecting the appropriate installation location, considering support and safety distances.

Dimensions

NRP0200 + 0280

Detailed dimensions and weight distribution for the NRP0200 and NRP0280 models.

Position of Hydraulic Connections

Basic 2-Pipe System Hydraulic Circuits

Standard NRP Components for 2-Pipe Systems

Lists and illustrates standard components within the 2-pipe system, including heat exchangers and filters.

Basic 4-Pipe System Hydraulic Circuits

Internal and External Hydraulic Circuit to NRP ° (standard)

Diagrams of the internal and external hydraulic circuits for standard 4-pipe systems.

Electrical Connections

Electric Data Table

Table providing recommended cable cross-sections for power supply and earth connections.

Electric Power Connection to the Electrical Mains

Control and Commissioning

Preparation for Commissioning

Steps for preparing the unit and system before commissioning, including safety checks.

Start-Up

Procedures for unit start-up, including preliminary checks and compressor oil heating.

Functioning Features

Set Point in Cooling Mode

Defines the factory set-point and temperature difference for cooling mode operation.

Anti-Freeze Alarm

Explains the anti-freeze alarm function, its triggers, and manual reset procedure.

Switch-On and Use of Unit

Menu Structure

Overview of the control panel's graphical interface and menu navigation for unit settings.

Accessory Connections

Summary

Description of the Unit

For 2-pipe systems

Details for 2-pipe system units, covering applications like hotels.

For 4-pipe systems

Details for 4-pipe system units, for shopping centres and offices.

Configurator

Basic Operating Layouts for 2-Pipe System

Cold Water Production Only to System

Diagram illustrating cold water production for the system in a 2-pipe configuration.

Basic Operating Layouts for 4-Pipe System

Cold Water Production Only to System

Diagram showing cold water production for the system in a 4-pipe configuration.

Description of Components

Cooling Circuit

Details on the scroll compressors, heat exchanger, and refrigerant circuit components.

Standard Hydraulic Circuit

Description of standard hydraulic components like filters, flow switches, and air vents.

Safety and Control Components

Explanation of safety components like pressure switches, transducers, and safety valves.

Electric Control and Power Board

Overview of the electrical board, including transformer, contactors, and electronic controller.

Accessories

Mechanical Accessories

Details on mechanical accessories such as anti-vibration mounts and protection grids.

Electric Accessories

Description of electric accessories like graphical displays and communication interfaces.

Technical Data

Operational Limits

Cooling Mode

Defines the operational limits for cooling mode, including temperature ranges and diagrams.

Heating Mode

Specifies the operational limits for heating mode, including temperature ranges and diagrams.

Corrective Factors for Data Different Than Nominal in Cooling Mode

Yields and Absorption Different Than Nominal

Provides correction factors for cooling capacity and input power based on different conditions.

Total Pressure Drops 2|4 Pipe Units

System Side Cold Water Production (2 pipes)

Graphs illustrating pressure drops for cold water production in 2-pipe systems.

Useful Static Pressures 2|4-Pipe System

Low Static Pressure Pumps in Cooling Mode (System Side)

Graphs showing available static pressure for low static pressure pumps in cooling mode.

Ethylene Glycol Solutions

How to Interpret Glycol Curves

Guide on interpreting glycol curves for calculating correction factors and glycol percentages.

Expansion Vessel Calibration

Minimum Water Content

Sound Data

Calibrations of Safety and Control Parameters

General Warnings

Installation

Guidance on unit installation to ensure proper maintenance and repair access.

Warnings Regarding Safety and Installation Standards

Emphasizes the need for qualified technicians and compliance with national legislation.

Product Identification

Receipt of the Product and Installation

Selection and Place of Installation

Guidelines for selecting the appropriate installation location, considering support and safety distances.

Dimensions

NRP0200 + 0280

Detailed dimensions and weight distribution for the NRP0200 and NRP0280 models.

Position of Hydraulic Connections

Basic 2-Pipe System Hydraulic Circuits

Standard NRP Components for 2-Pipe Systems

Lists and illustrates standard components within the 2-pipe system, including heat exchangers and filters.

Basic 4-Pipe System Hydraulic Circuits

Internal and External Hydraulic Circuit to NRP ° (standard)

Diagrams of the internal and external hydraulic circuits for standard 4-pipe systems.

Electrical Connections

Electric Data Table

Table providing recommended cable cross-sections for power supply and earth connections.

Electric Power Connection to the Electrical Mains

Control and Commissioning

Preparation for Commissioning

Steps for preparing the unit and system before commissioning, including safety checks.

Start-Up

Procedures for unit start-up, including preliminary checks and compressor oil heating.

Functioning Features

Set Point in Cooling Mode

Defines the factory set-point and temperature difference for cooling mode operation.

Anti-Freeze Alarm

Explains the anti-freeze alarm function, its triggers, and manual reset procedure.

Switch-On and Use of Unit

Menu Structure

Overview of the control panel's graphical interface and menu navigation for unit settings.

Accessory Connections

AERMEC NRP 0240 Specifications

General IconGeneral
ModelNRP 0240
CategoryHeat Pump
Power Supply400V/3Ph/50Hz
RefrigerantR410A
TypeAir to Water

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