AERMEC NRK 0150 - User Manual

Questions and Answers

M
Mario OconnorAug 14, 2025
Why AERMEC Air Conditioner unit does not start?
- T
  Teresa CareyAug 14, 2025
  The AERMEC Air Conditioner unit might fail to start due to several reasons: * Lack of electrical voltage, requiring a voltage check and inspection of upstream safety systems. * The master, remote, control panel, or main switch being OFF, needing to be set to ON. * An uninstalled or unwired flow switch, which needs proper installation, avoiding bridging the contacts to prevent damage in case of insufficient water. * Low power supply voltage, necessitating a check of the power supply line. * A broken compressor remote control switch coil, faulty electronic circuit board, faulty peak condenser, or faulty compressor, each requiring component replacement.
R
Russell UnderwoodAug 17, 2025
What to do if AERMEC Air Conditioner compressor stops due to the intervention of the protections?
- J
  jose63Aug 17, 2025
  If the AERMEC Air Conditioner compressor stops due to the activation of its safety mechanisms, it could be due to: * Excessive flow pressure. * Low intake pressure. * Low power supply voltage. * Poorly tightened electrical connections. * Operation outside operating limits. In these cases, check the operating limits using the graphics. It may also be due to a malfunctioning pressure switch (replace the component), intervention of circuit breaker protection (check the power supply voltage and calibrations, and the electrical isolation of the windings), or flow switch intervention (check water flow rate).
J
Jessica MannAug 21, 2025
Why AERMEC Air Conditioner compressor has high discharge pressure?
- F
  Frank WaltersAug 21, 2025
  High discharge pressure in the AERMEC Air Conditioner's compressor can be caused by: * High external air temperature. * High utility inlet water temperature. In such cases, check the operating limits using the graphics. * Insufficient air or water flow. Control the operation of the fans, the cleanliness of the coil, the operation of the pump (speed), and the cleanliness of the filter. * Anomalous fan operation (check or replace if broken). * Air in the hydraulic system (vent the circuit). * Too much refrigerant gas charged (restore the correct charge).
W
Wendy CantuAug 25, 2025
Why AERMEC Air Conditioner has poor yield?
- L
  Lawrence MooreAug 25, 2025
  Poor yield in the AERMEC Air Conditioner can stem from several causes: * Lack of refrigerant. * Dirty coils. * Clogged water filter. * Improper appliance dimensioning. * Operating outside the specified limits. To address this, check for refrigerant leaks and replenish the refrigerant, clean the coils and the filter, check the appliance's performance, and verify that the operating limits are within the ranges specified in the graphics.
H
Heather PorterAug 27, 2025
What causes noises and vibrations in AERMEC Air Conditioner?
- R
  Raven JimenezAug 27, 2025
  Noises and vibrations in your AERMEC Air Conditioner can arise from: * Contact between metallic bodies (check). * Weak support (strengthen). * Loose screws (tighten the screws).
C
Cynthia MartinAug 31, 2025
Why AERMEC Air Conditioner compressor has low discharge pressure?
- T
  Timothy HatfieldAug 31, 2025
  Low discharge pressure in the AERMEC Air Conditioner's compressor can occur due to: * Low outside air temperature. * Low water inlet temperature. Check the operating limits using the graphics. * Moisture in the refrigerant circuit (empty and restore the gas charge). * Air in the hydraulic system (bleed the circuit). * Insufficient gas load (restore the correct load).
A
apriltaylorSep 3, 2025
Why AERMEC Air Conditioner compressor is noisy?
- R
  rodgersmistySep 3, 2025
  A noisy compressor in the AERMEC Air Conditioner can be attributed to: * Liquid return to the compressor (check). * Inadequate fixing (check). * Inverted phase (invert a phase).
D
David GarzaSep 6, 2025
Why AERMEC Air Conditioner has high intake pressure?
- J
  jessica12Sep 6, 2025
  High intake pressure in your AERMEC Air Conditioner can be caused by: * High external air temperature. * High utility inlet water temperature. * Thermostatic expansion valve being too open or damaged. Check the operating limits using the graphics and adjust or replace the valve if damaged.
J
Jillian WalkerSep 9, 2025
Why AERMEC Air Conditioner has low intake pressure?
- K
  Kelly Nichols MDSep 9, 2025
  Low intake pressure in the AERMEC Air Conditioner may result from: * Utilities low inlet water temperature. * Low outside air temperature. * Thermostatic expansion valve damaged or blocked. Check the operating limits using the graphics and adjust or replace if damaged. * Insufficient water flow. * Insufficient air flow. Control operation of the fans, cleanliness of the coil, pump operation (speed), and filter cleanliness.

Summary

General Warnings and Safety

Preservation of Documentation

Instructions for proper handling and storage of the manual for future reference and user responsibility.

Safety and Installation Standards

Essential safety guidelines and standards to be followed during installation and operation of the unit.

Product Identification

Information on how to identify the unit using packing labels and technical plates.

Unit Receipt and Handling Procedures

Lifting and Machine Handling

Detailed instructions for safe lifting, handling, and transport of the unit, including regulations and precautions.

Selection and Placement of Installation Site

Guidelines for choosing a suitable installation location, considering support, safety distances, and maintenance access.

Hydraulic Connection Positions

NRK Version 00 Connections

Diagrams showing hydraulic connection points for NRK units in Version 00 configuration.

NRK Version 01-08 Connections

Diagrams illustrating hydraulic connection points for NRK units in Version 01-08.

NRK Version P1-P4 Connections

Diagrams detailing hydraulic connection points for NRK units in Version P1-P4 configurations.

NRK Version D 00 Connections

Diagrams showing hydraulic connection points for NRK units in Version D 00 configuration.

NRK Version D 01-08 Connections

Diagrams illustrating hydraulic connection points for NRK units in Version D 01-08.

NRK Combined Version Connections

Hydraulic connection details for specific combined NRK unit versions, like NRK_0200 + 330_HE_D[P1÷P4].

Main Hydraulic Circuit Diagrams and Components

Internal Hydraulic Circuit and Standard Components

Diagram of the internal hydraulic circuit and list of components supplied as standard with the unit.

Recommended External Hydraulic Components

List of optional hydraulic components recommended for installer to provide for system integration.

Water Content and Quality Requirements

Table specifying minimum water content and required water quality parameters for unit operation.

System Loading, Emptying, and Draining

System Emptying Procedures

Step-by-step instructions for safely emptying the unit's system, including precautions.

System Draining and Freezing Prevention

Procedures for draining the system and methods to prevent freezing damage during winter shutdown.

Weight Distribution for Unit Supports

Empty Unit Weight Distribution

Table detailing the weight distribution percentages on supports for empty unit configurations.

Operating Unit Weight Distribution

Table showing weight distribution percentages on supports for units during operation.

Electric Connections and Power Supply

Mandatory Electric Connection Requirements

Essential mandatory requirements for safe and correct electrical connections, including earthing and phase checking.

Electric Power Connection Procedure

Step-by-step guide for connecting the unit to the main electrical power supply, including safety checks.

Electrical Data Specifications

User Interface and Control Keys

Interface Control Key Functions

Description of the function of each key on the user interface panel for unit operation and parameter adjustment.

Unit Start-Up Procedure

Menu Structure and Navigation Guide

User Operating Procedures

Moving Between Menus

Instructions on how to navigate through the unit's menu system using the control panel keys.

Selecting and Modifying Parameters

Steps for selecting and modifying unit parameters, including value adjustment and confirmation.

Unit Control and Commissioning

Preparation and Start-up Procedures

Steps for preparing the unit, performing preliminary checks, and executing the initial start-up sequence.

Hydraulic and Machine Commissioning Checks

Detailed checks for hydraulic circuits, machine operation, cooling circuit, and operational features during commissioning.

Routine Maintenance Procedures

Electrical, Hydraulic, and Cooling Circuit Checks

Yearly checks for electrical systems, hydraulic circuits, and cooling circuits to ensure optimal performance.

Mechanical Checks and Disposal

Mechanical inspections of unit components and guidance on proper unit disposal according to standards.

Troubleshooting Common Issues

AERMEC NRK 0150 Specifications

General

Brand	AERMEC
Model	NRK 0150
Category	Heat Pump
Language	English

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AERMEC NRK 0150 - User Manual

Table of Contents

Questions and Answers

Summary

General Warnings and Safety

Preservation of Documentation

Safety and Installation Standards

Product Identification

Unit Receipt and Handling Procedures

Lifting and Machine Handling

Selection and Placement of Installation Site

Hydraulic Connection Positions

NRK Version 00 Connections

NRK Version 01-08 Connections

NRK Version P1-P4 Connections

NRK Version D 00 Connections

NRK Version D 01-08 Connections

NRK Combined Version Connections

Main Hydraulic Circuit Diagrams and Components

Internal Hydraulic Circuit and Standard Components

Recommended External Hydraulic Components

Water Content and Quality Requirements

System Loading, Emptying, and Draining

System Emptying Procedures

System Draining and Freezing Prevention

Weight Distribution for Unit Supports

Empty Unit Weight Distribution

Operating Unit Weight Distribution

Electric Connections and Power Supply

Mandatory Electric Connection Requirements

Electric Power Connection Procedure

Electrical Data Specifications

User Interface and Control Keys

Interface Control Key Functions

Unit Start-Up Procedure

Menu Structure and Navigation Guide

User Operating Procedures

Moving Between Menus

Selecting and Modifying Parameters

Unit Control and Commissioning

Preparation and Start-up Procedures

Hydraulic and Machine Commissioning Checks

Routine Maintenance Procedures

Electrical, Hydraulic, and Cooling Circuit Checks

Mechanical Checks and Disposal

Troubleshooting Common Issues

Summary

General Warnings and Safety

Preservation of Documentation

Safety and Installation Standards

Product Identification

Unit Receipt and Handling Procedures

Lifting and Machine Handling

Selection and Placement of Installation Site

Hydraulic Connection Positions

NRK Version 00 Connections

NRK Version 01-08 Connections

NRK Version P1-P4 Connections

NRK Version D 00 Connections

NRK Version D 01-08 Connections

NRK Combined Version Connections

Main Hydraulic Circuit Diagrams and Components

Internal Hydraulic Circuit and Standard Components

Recommended External Hydraulic Components

Water Content and Quality Requirements

System Loading, Emptying, and Draining

System Emptying Procedures

System Draining and Freezing Prevention

Weight Distribution for Unit Supports

Empty Unit Weight Distribution

Operating Unit Weight Distribution

Electric Connections and Power Supply

Mandatory Electric Connection Requirements

Electric Power Connection Procedure

Electrical Data Specifications

User Interface and Control Keys

Interface Control Key Functions

Unit Start-Up Procedure

Menu Structure and Navigation Guide

User Operating Procedures