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AERMEC 1802 - User Manual

AERMEC 1802
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CHILLERS- Technical manual - installation - maintenance
NS
S- Technical
m
manual - installation - mainte
n
a
n
m
R134a
EN
INSPY. 1007. 4138305_03
Aermec adhere to the EUROVENT Certi-
fication program up to 600 kW.
The products concerned appear in the
EUROVENT Certified product guide.

Table of Contents

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Summary

1. General Warnings

1.1. Conserving the Documentation

Instructions for preserving the manual for system users and maintenance.

1.2. Safety Precautions and Installation

Guidelines for safe installation by authorized personnel and general safety checks.

2. Product Identification

Packaging Label Details

Information provided on the product's packaging label.

Technical Card Information

Product identification details found on the technical card.

3. Unit Description and Selection

3.1. Models and Available Versions

Overview of available models, versions, and their specifications.

3.3. Unit Configuration Options

Details on selecting unit components like compressor, heat recovery, and pumps.

4. Component Descriptions

4.1. Chiller Circuit Components

Details on compressors, heat exchangers, and valves within the chiller circuit.

4.2. Frame and Fans

Description of the unit's frame structure and fan components.

4.3. Hydraulic Components

Details on hydraulic components like pumps, expansion tanks, and safety devices.

4.4. Safety and Control Components

Explanation of safety and control components such as pressure switches and transducers.

4.5. Electrical Components

Description of electrical components like panels, switches, and keypads.

4.6. Electronic Regulation System

Explanation of the electronic regulation system, control cards, and terminals.

5. Accessories

5.1. Electric Regulation Accessories

List of accessories for electric regulation, including communication modules.

5.2. Electrical Accessories

Details on electrical accessories like phase advancers and antivibration springs.

5.3. General Accessories

Coverage of general accessories like protective grilles and antivibration springs.

6. Technical Data

6.1. Technical Data NS 1251-1802

Detailed technical specifications for NS 1251-1802 models.

6.2. Technical Data NS 2002-3402

Detailed technical specifications for NS 2002-3402 models.

6.3. Technical Data NS 3602-5702

Detailed technical specifications for NS 3602-5702 models.

6.4. Technical Data NS 6003-7203

Detailed technical specifications for NS 6003-7203 models.

Optional Desuperheater and Heat Recovery Data

Technical data for optional desuperheater and heat recovery units.

Sound and Dimension Data

Sound levels and dimensional data for various NS models.

7. Operating Limits

7.1. Operating Limits Graph Versions ° and L

Graph showing operating limits for °/L versions.

7.2. Operating Limits Graph Versions A and E for 5402-5702

Graph showing operating limits for A/E versions of specific models.

7.3. Design Data

Provides design data like max pressure and temperature limits.

7.4. Operating Limits Graph Versions A and E

Graph showing operating limits for A/E versions.

8. Correction Factors

8.1. Standard Version Correction Factors

Correction factors for the standard version of the unit.

8.2. Standard Version in Silenced Form Correction Factors

Correction factors for the standard version in silenced form.

8.3. High Efficiency Version Correction Factors

Correction factors for high efficiency versions (excluding specific sizes).

8.4. Silenced High Efficiency Version Correction Factors

Correction factors for silenced high efficiency versions (excluding specific sizes).

8.5. High Efficiency Version Correction Factors (5402 & 5702)

Correction factors for high efficiency versions (excluding specific sizes).

8.6. Silenced High Efficiency Version Correction Factors (5402 & 5702)

Correction factors for silenced high efficiency versions (excluding specific sizes).

8.7. Correction Factors for Different Δt Values

Correction factors for different At values than rated.

8.8. Fouling Factors

Fouling factors for performance correction.

9. Glycol Considerations

9.1. How to Read Glycol Curves

Guide on interpreting glycol correction curves based on temperature and percentage.

10. Total Pressure Drops

10.1. Minimum Water Content Recommended

Recommended minimum water content for various models.

11. Desuperheater Functionality

11.1. Pressure Drops

Pressure drops related to desuperheaters.

12. Total Recovery Functionality

12.1. Pressure Drops

Pressure drops for units with total heat recovery.

12.2. Pressure Drops for Total Recovery

Pressure drops specific to the total recovery function.

12.2.1. Corrective Factors for Water Temperatures

Corrective factors for water temperatures affecting total recovery.

13. Pumps

13.1. Selection of Pumps

Guide on selecting the appropriate pump for NS models.

14. Sound Data

14.1. Sound Levels (Standard NS)

Sound levels for standard NS units.

14.2. Sound Levels (Silenced NS L)

Sound levels for silenced NS units in 'L' version.

14.3. Sound Levels (High Efficiency NS А)

Sound levels for high efficiency 'A' version NS units.

14.4. Sound Levels (Silenced High Efficiency NS E)

Sound levels for silenced high efficiency 'A'/'E' version NS units.

14.5. Sound Levels with AK Accessory

Sound levels with AK accessory for L/E versions.

15. Safety and Check Parameter Setting

Check Parameters Overview

Parameters for cold setting, antifreeze, total differential, and autostart.

16. Safety Components Calibration

Fan Thermomagnetic Switches

Calibration values for fan thermomagnetic switches.

Compressor Safety Components

Calibration values for compressor thermomagnetic switches, thermal relays, and fuses.

Main Switch and Transducers

Main switch ratings and specifications for pressure switches and transducers.

Cooling Circuit Safety Valves

Safety valve ratings for the cooling circuit.

17. Installation Site Selection

General Installation Considerations

Advice on unit placement, support, and safety distances.

18. Unit Positioning and Handling

18.1. Minimum Installation Spaces

Specifies minimum clearances required around the unit for maintenance.

19. Dimensional Tables and Water Connections

19.1. Carpentry by 3780 mm

Dimensional tables for 3780mm carpentry.

19.2. Carpentry by 4770 mm

Dimensional tables for 4770mm carpentry.

19.3. Carpentry by 5750 mm (8 Fans)

Dimensional tables for 5750mm carpentry with 8 fans.

19.4. Carpentry by 5750 mm (10 Fans)

Dimensional tables for 5750mm carpentry with 10 fans.

19.4.1. Weight Distribution for AVX Kit Installation

Percentage weights for AVX kit installation supports.

19.4.2. Water Connections for 4770 mm Carpentry

Water connection diagrams for 4770mm carpentry models.

19.5. Carpentry by 7160 mm

Dimensional tables for 7160mm carpentry.

19.6. Carpentry by 7160 mm (Two Circuits)

Dimensional tables for 7160mm carpentry with two circuits.

19.7. Carpentry by 8150 mm

Dimensional tables for 8150mm carpentry.

19.8. Carpentry by 9140 mm

Dimensional tables for 9140mm carpentry.

19.9. Carpentry by 10120 mm

Dimensional tables for 10120mm carpentry.

19.10. Carpentry by 11100 mm

Dimensional tables for 11100mm carpentry.

19.11. Carpentry by 10120 mm (NS 5002)

Dimensional tables for 10120mm carpentry (NS 5002).

19.12. Carpentry by 11100 mm (NS 5202)

Dimensional tables for 11100mm carpentry (NS 5202).

19.13. Carpentry by 10120 mm (NS 5402)

Dimensional tables for 10120mm carpentry (NS 5402).

19.14. Carpentry by 12520 mm

Dimensional tables for 12520mm carpentry.

19.15. Carpentry by 13510 mm

Dimensional tables for 13510mm carpentry.

Water Connections Diagrams

Diagrams illustrating water connections for different models and carpentry sizes.

High Efficiency Unit Assembly and Installation

20. Hydraulic Circuit Details

Standard, Desuperheater, and Pump Versions

Hydraulic circuit configurations for different unit versions.

20.1. Recommended External Hydraulic Circuit

Guidance on selecting and installing external hydraulic components.

20.2. System Load Procedure

Steps for properly loading the hydraulic system.

20.3. Emptying the System

Instructions for draining the hydraulic system.

21. Electrical Data and Wiring

21.1. Recommended Electric Cable Sections

Guidelines for selecting electric cable sizes.

21.2. Power Supply Connection

Instructions for connecting the unit to the electrical power supply.

21.3. Electrical Power Connection Details

Specifics on electrical power connections and wiring.

21.4. Auxiliary Electrical Connections

Information on user/installer provided auxiliary connections.

21.5. Electric Data (Versions °;L)

Electrical specifications for °/L versions.

21.6. Electric Data (Versions A;E)

Electrical specifications for A/E versions.

22. Control and First Start-Up

22.1. Preparation for Commissioning

Steps required before initial unit commissioning.

22.2. First Commissioning of the Machine

Procedure for the initial startup of the machine.

22.3. Season Changeover

Checks and procedures for seasonal changes in unit operation.

22.3.1. Season Change of the Panel

How to perform season change using the machine panel.

23. Functioning Characteristics

23.1. Cooling Set Point

Definition of the cooling set point and temperature difference.

23.2. Compressor Start Delay

Functions to prevent compressor start-up too close together.

23.3. Circulation Pump Operation

How the circulation pump is managed and its alarms.

23.4. Anti-Freeze Alarm System

Operation and warnings for the anti-freeze alarm system.

23.5. Water Flow Rate Alarm

Description of the water flow rate alarm and its effects.

24. Regular Maintenance

24.5.1. Hydraulic Circuit Maintenance

Checks for regular maintenance of the hydraulic circuit.

24.5.2. Electric Circuit Maintenance

Checks for regular maintenance of the electric circuit.

24.5.3. Chiller Circuit Maintenance

Checks for regular maintenance of the chiller circuit.

24.5.4. Mechanical Controls Maintenance

Maintenance checks for mechanical controls and structure.

25. Extraordinary Maintenance

Refrigerant Gas Checks and Leaks

Discusses refrigerant gas handling and potential leaks.

25.5.1. Refrigerant Loading Procedure

Detailed procedure for refrigerant gas loading.

Disposal of Unit Components

Guidelines for the proper disposal of the unit.

Summary

1. General Warnings

1.1. Conserving the Documentation

Instructions for preserving the manual for system users and maintenance.

1.2. Safety Precautions and Installation

Guidelines for safe installation by authorized personnel and general safety checks.

2. Product Identification

Packaging Label Details

Information provided on the product's packaging label.

Technical Card Information

Product identification details found on the technical card.

3. Unit Description and Selection

3.1. Models and Available Versions

Overview of available models, versions, and their specifications.

3.3. Unit Configuration Options

Details on selecting unit components like compressor, heat recovery, and pumps.

4. Component Descriptions

4.1. Chiller Circuit Components

Details on compressors, heat exchangers, and valves within the chiller circuit.

4.2. Frame and Fans

Description of the unit's frame structure and fan components.

4.3. Hydraulic Components

Details on hydraulic components like pumps, expansion tanks, and safety devices.

4.4. Safety and Control Components

Explanation of safety and control components such as pressure switches and transducers.

4.5. Electrical Components

Description of electrical components like panels, switches, and keypads.

4.6. Electronic Regulation System

Explanation of the electronic regulation system, control cards, and terminals.

5. Accessories

5.1. Electric Regulation Accessories

List of accessories for electric regulation, including communication modules.

5.2. Electrical Accessories

Details on electrical accessories like phase advancers and antivibration springs.

5.3. General Accessories

Coverage of general accessories like protective grilles and antivibration springs.

6. Technical Data

6.1. Technical Data NS 1251-1802

Detailed technical specifications for NS 1251-1802 models.

6.2. Technical Data NS 2002-3402

Detailed technical specifications for NS 2002-3402 models.

6.3. Technical Data NS 3602-5702

Detailed technical specifications for NS 3602-5702 models.

6.4. Technical Data NS 6003-7203

Detailed technical specifications for NS 6003-7203 models.

Optional Desuperheater and Heat Recovery Data

Technical data for optional desuperheater and heat recovery units.

Sound and Dimension Data

Sound levels and dimensional data for various NS models.

7. Operating Limits

7.1. Operating Limits Graph Versions ° and L

Graph showing operating limits for °/L versions.

7.2. Operating Limits Graph Versions A and E for 5402-5702

Graph showing operating limits for A/E versions of specific models.

7.3. Design Data

Provides design data like max pressure and temperature limits.

7.4. Operating Limits Graph Versions A and E

Graph showing operating limits for A/E versions.

8. Correction Factors

8.1. Standard Version Correction Factors

Correction factors for the standard version of the unit.

8.2. Standard Version in Silenced Form Correction Factors

Correction factors for the standard version in silenced form.

8.3. High Efficiency Version Correction Factors

Correction factors for high efficiency versions (excluding specific sizes).

8.4. Silenced High Efficiency Version Correction Factors

Correction factors for silenced high efficiency versions (excluding specific sizes).

8.5. High Efficiency Version Correction Factors (5402 & 5702)

Correction factors for high efficiency versions (excluding specific sizes).

8.6. Silenced High Efficiency Version Correction Factors (5402 & 5702)

Correction factors for silenced high efficiency versions (excluding specific sizes).

8.7. Correction Factors for Different Δt Values

Correction factors for different At values than rated.

8.8. Fouling Factors

Fouling factors for performance correction.

9. Glycol Considerations

9.1. How to Read Glycol Curves

Guide on interpreting glycol correction curves based on temperature and percentage.

10. Total Pressure Drops

10.1. Minimum Water Content Recommended

Recommended minimum water content for various models.

11. Desuperheater Functionality

11.1. Pressure Drops

Pressure drops related to desuperheaters.

12. Total Recovery Functionality

12.1. Pressure Drops

Pressure drops for units with total heat recovery.

12.2. Pressure Drops for Total Recovery

Pressure drops specific to the total recovery function.

12.2.1. Corrective Factors for Water Temperatures

Corrective factors for water temperatures affecting total recovery.

13. Pumps

13.1. Selection of Pumps

Guide on selecting the appropriate pump for NS models.

14. Sound Data

14.1. Sound Levels (Standard NS)

Sound levels for standard NS units.

14.2. Sound Levels (Silenced NS L)

Sound levels for silenced NS units in 'L' version.

14.3. Sound Levels (High Efficiency NS А)

Sound levels for high efficiency 'A' version NS units.

14.4. Sound Levels (Silenced High Efficiency NS E)

Sound levels for silenced high efficiency 'A'/'E' version NS units.

14.5. Sound Levels with AK Accessory

Sound levels with AK accessory for L/E versions.

15. Safety and Check Parameter Setting

Check Parameters Overview

Parameters for cold setting, antifreeze, total differential, and autostart.

16. Safety Components Calibration

Fan Thermomagnetic Switches

Calibration values for fan thermomagnetic switches.

Compressor Safety Components

Calibration values for compressor thermomagnetic switches, thermal relays, and fuses.

Main Switch and Transducers

Main switch ratings and specifications for pressure switches and transducers.

Cooling Circuit Safety Valves

Safety valve ratings for the cooling circuit.

17. Installation Site Selection

General Installation Considerations

Advice on unit placement, support, and safety distances.

18. Unit Positioning and Handling

18.1. Minimum Installation Spaces

Specifies minimum clearances required around the unit for maintenance.

19. Dimensional Tables and Water Connections

19.1. Carpentry by 3780 mm

Dimensional tables for 3780mm carpentry.

19.2. Carpentry by 4770 mm

Dimensional tables for 4770mm carpentry.

19.3. Carpentry by 5750 mm (8 Fans)

Dimensional tables for 5750mm carpentry with 8 fans.

19.4. Carpentry by 5750 mm (10 Fans)

Dimensional tables for 5750mm carpentry with 10 fans.

19.4.1. Weight Distribution for AVX Kit Installation

Percentage weights for AVX kit installation supports.

19.4.2. Water Connections for 4770 mm Carpentry

Water connection diagrams for 4770mm carpentry models.

19.5. Carpentry by 7160 mm

Dimensional tables for 7160mm carpentry.

19.6. Carpentry by 7160 mm (Two Circuits)

Dimensional tables for 7160mm carpentry with two circuits.

19.7. Carpentry by 8150 mm

Dimensional tables for 8150mm carpentry.

19.8. Carpentry by 9140 mm

Dimensional tables for 9140mm carpentry.

19.9. Carpentry by 10120 mm

Dimensional tables for 10120mm carpentry.

19.10. Carpentry by 11100 mm

Dimensional tables for 11100mm carpentry.

19.11. Carpentry by 10120 mm (NS 5002)

Dimensional tables for 10120mm carpentry (NS 5002).

19.12. Carpentry by 11100 mm (NS 5202)

Dimensional tables for 11100mm carpentry (NS 5202).

19.13. Carpentry by 10120 mm (NS 5402)

Dimensional tables for 10120mm carpentry (NS 5402).

19.14. Carpentry by 12520 mm

Dimensional tables for 12520mm carpentry.

19.15. Carpentry by 13510 mm

Dimensional tables for 13510mm carpentry.

Water Connections Diagrams

Diagrams illustrating water connections for different models and carpentry sizes.

High Efficiency Unit Assembly and Installation

20. Hydraulic Circuit Details

Standard, Desuperheater, and Pump Versions

Hydraulic circuit configurations for different unit versions.

20.1. Recommended External Hydraulic Circuit

Guidance on selecting and installing external hydraulic components.

20.2. System Load Procedure

Steps for properly loading the hydraulic system.

20.3. Emptying the System

Instructions for draining the hydraulic system.

21. Electrical Data and Wiring

21.1. Recommended Electric Cable Sections

Guidelines for selecting electric cable sizes.

21.2. Power Supply Connection

Instructions for connecting the unit to the electrical power supply.

21.3. Electrical Power Connection Details

Specifics on electrical power connections and wiring.

21.4. Auxiliary Electrical Connections

Information on user/installer provided auxiliary connections.

21.5. Electric Data (Versions °;L)

Electrical specifications for °/L versions.

21.6. Electric Data (Versions A;E)

Electrical specifications for A/E versions.

22. Control and First Start-Up

22.1. Preparation for Commissioning

Steps required before initial unit commissioning.

22.2. First Commissioning of the Machine

Procedure for the initial startup of the machine.

22.3. Season Changeover

Checks and procedures for seasonal changes in unit operation.

22.3.1. Season Change of the Panel

How to perform season change using the machine panel.

23. Functioning Characteristics

23.1. Cooling Set Point

Definition of the cooling set point and temperature difference.

23.2. Compressor Start Delay

Functions to prevent compressor start-up too close together.

23.3. Circulation Pump Operation

How the circulation pump is managed and its alarms.

23.4. Anti-Freeze Alarm System

Operation and warnings for the anti-freeze alarm system.

23.5. Water Flow Rate Alarm

Description of the water flow rate alarm and its effects.

24. Regular Maintenance

24.5.1. Hydraulic Circuit Maintenance

Checks for regular maintenance of the hydraulic circuit.

24.5.2. Electric Circuit Maintenance

Checks for regular maintenance of the electric circuit.

24.5.3. Chiller Circuit Maintenance

Checks for regular maintenance of the chiller circuit.

24.5.4. Mechanical Controls Maintenance

Maintenance checks for mechanical controls and structure.

25. Extraordinary Maintenance

Refrigerant Gas Checks and Leaks

Discusses refrigerant gas handling and potential leaks.

25.5.1. Refrigerant Loading Procedure

Detailed procedure for refrigerant gas loading.

Disposal of Unit Components

Guidelines for the proper disposal of the unit.

AERMEC 1802 Specifications

General IconGeneral
BrandAERMEC
Model1802
CategoryChiller
LanguageEnglish

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