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AERMEC NXW - User Manual

AERMEC NXW
136 pages
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NXW
INXWUX - 4437801_01 - 1312
IT EN
FR DE
Pompa di calore condensata ad acqua
Electronic adjustment for water-cooled heat pumps
Réglage électronique pour pompes à chaleur à condensation par eau
Elektronische Regelung für Wärmepumpe mit Wasserkühlung
MANUALE USO • USAGE MANUAL
MANUEL D’UTILISATION • BEDIENUNGSANLEITUNG

Table of Contents

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AERMEC NXW Specifications

General IconGeneral
ModelNXW
ManufacturerAERMEC
Protection RatingIP20
Communication ProtocolModbus
Input Voltage24 VAC
Relative Humidity5% to 95% (non-condensing)

Summary

User Interface

Interface Command Keys

Describes navigation and operation buttons on the control panel.

Main Menu Icons

Explains symbols used in the main menu for unit status indication.

Menu Structure and Navigation

Main Menu

Fundamental information regarding the unit's use.

Quick Menu

Information on the cooling circuit and unit compressors.

ON;OFF Menu

Commands for switching the unit on and off.

SET-POINT Menu

Parameters for setting the unit's work set points.

SEASON Menu

Parameters for selecting the unit's functioning modes.

TIME PERIODS Menu

Parameters for setting timer periods for operation.

INPUTS;OUTPUTS Menu

Parameters linked to the management of inputs and outputs.

HISTORICAL ALARMS Menu

List of alarms occurring on the unit, ordered by date.

AFTER-SALES ASSISTANCE Menu

Sub-menus for technical support and system information.

MANUFACTURERS menu

Password protected menu for authorized installers only.

Use Operational Procedures

Pass from One Menu to Another

Procedure for navigating between different menus on the control panel.

Selecting and Modifying a Parameter

How to select and change parameter values within the unit's interface.

MAIN Menu Parameters

Unit Display Visualization

Describes the elements displayed on the unit's main screen.

Parameter Definitions

Explains the meaning of displayed parameters and icons in the main menu.

QUICK-MENU Parameters

Cooling Circuit Information

Displays data related to the cooling circuit, like pressures and temperatures.

General Regulation Settings

Shows general unit settings and parameters for regulation.

ON;OFF MENU Parameters

Unit Switch-on;off from PGD1 Panel

Controls the unit's power state directly from the PGD1 panel.

Enable Remote ON;OFF

Manages unit power control via digital input or external supervisor.

SET POINT MENU Parameters

Display Current Set Point

Shows the currently active work set point for the unit.

Setting Cooling Mode Set Points

Configures target temperatures for the cooling operation mode.

Setting Heating Mode Set Points

Configures target temperatures for the heating operation mode.

COOLING;HEATING Menu Parameters

Setting the Functioning Mode

Selects the operational mode of the unit (cooling or heating).

Enable Remote Changeover

Configures seasonal changeover command via digital input.

CLOCK;PERIOD MENU Parameters

Setting System Date and Time

Configures the current date and time for the system.

Setting Daily Time Periods

Defines timed operational periods for daily use.

CLOCK;PERIOD Menu - Special Settings

Setting Special Periods

Defines time-based operation overrides for specific date ranges.

Setting Special Days

Configures unique operational settings for specific calendar days.

INPUTS;OUTPUTS MENU Parameters

High;Low Pressure Transducer Inputs (Circuit 1)

Displays pressure readings from the cooling circuit 1.

Evaporator Inlet;Outlet Temperature Inputs

Shows water temperatures at the evaporator inlet and outlet.

Condenser Output Temperature Inputs

Displays water temperature at the condenser outlet.

High;Low Pressure Transducer Inputs (Circuit 2)

Displays pressure readings from the cooling circuit 2.

INPUTS;OUTPUTS Menu - Input Details

Condenser Input Temperature Inputs

Shows water temperature at the condenser inlet.

High;Low Pressure Switch Status (Circuit 1)

Monitors pressure switch states for circuit 1.

Remote Commands Digital Inputs

Controls unit functions via external digital signals.

INPUTS;OUTPUTS Menu - Component Status

Compressor Flow Switch Inputs

Monitors flow switch status for compressors.

Compressor 2 Circuit Breaker & Phases

Status of compressor 2 circuit breaker and phase control.

High;Low Pressure Switch Status (Circuit 2)

Monitors pressure switch states for circuit 2.

INPUTS;OUTPUTS Menu - Pump & Compressor Status

Compressor 2 Circuit Breaker Inputs

Status of compressor 2 circuit breaker.

Evaporator Pump Circuit Breaker Inputs

Monitors flow switch status for evaporator pumps.

Condenser Pump Circuit Breaker Inputs

Monitors flow switch status for condenser pumps.

INPUTS;OUTPUTS Menu - Output Status

Condenser Flow Switch Inputs

Monitors flow switch status for the condenser.

Compressors Digital Outputs (Circuit 1)

Shows ON/OFF status of circuit 1 compressors.

Compressors Digital Outputs (Circuit 2)

Shows ON/OFF status of circuit 2 compressors.

Condenser Pumps Digital Outputs

Shows ON/OFF status of condenser pumps.

INPUTS;OUTPUTS Menu - Alarm & Valve Outputs

Anti-freeze & Compressor Phase Alarms

Digital outputs for anti-freeze and compressor phase alarms.

Evaporator Pump Digital Outputs

Shows ON/OFF status of evaporator pumps.

Solenoid Valves Digital Outputs

Shows ON/OFF status of solenoid valves.

4-Way Valves Digital Outputs

Shows ON/OFF status of 4-way valves.

Historical ALARMS

Example of Historical Alarms

Displays recorded alarms with date, code, and description.

AFTER-SALES ASSISTANCE Menu

Language Selection

Manages the system language settings.

Language Selection on Start-up

Configures language selection at unit startup.

Display System Information

Shows details about the unit's control system hardware.

Display Board Address

Shows the address of the control board.

AFTER-SALES ASSISTANCE Menu - Operational Data

Evaporator Pump Functioning Hours

Displays operating hours for evaporator pumps.

Compressors Functioning Hours

Displays operating hours for compressors.

Condenser Pump Functioning Hours

Displays operating hours for condenser pumps.

CONFIG. BMS - Supervising Service

Configures communication protocols for BMS.

Alarms Summary Table

Alarm Signalling and Rearm Modes

Explains how alarms are indicated and their possible rearm modes.

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