AERMEC NRL 280-75 User Manual

TECHNICAL MANUAL
60Hz
60Hz
13_01. 5641300_00
NRL 280-750
CHILLER
REVERSIBLE HEAT PUMP
• EXTERNAL UNIT
• HIGH EFFICENCY
• HOT WATER PRODUCING UP TO 131°F / 55°C
• POWER SUPPLY 60Hz
EN

AERMEC NRL 280-75 Specifications

General

Brand	AERMEC
Model	NRL 280-75
Category	Heat Pump
Language	English

Summary

CHILLER REVERSIBLE HEAT PUMP NRL 280-750

1. DESCRIPTION AND CHOCE OF UNIT

Unit Models and Versions

Lists different models, versions, and configurations for the unit.

Allowed and Prohibited Configurations

Details specific allowed and disallowed unit configurations.

3. CONFIGURATOR

Configuration Parameters

Details parameters for unit configuration, including size, model, and version.

Optional Configurations and Power Supply

Lists coil, fan, hydronic kit options and power supply specifications.

4. COOLING CIRCUIT

Cooling-Only Circuit Diagram

Provides a schematic of the cooling-only circuit.

Heat Pump Circuit Diagram

Illustrates the circuit diagram for heat pump operation.

5. DESCRIPTION OF COMPONENTS

5.1 Chiller Circuit Components

Details various components within the chiller circuit.

5.2 Frame and Fans

Describes the unit's structural frame and fan assembly.

5.3 Hydraulic Circuit Standard Components

Lists standard hydraulic circuit parts.

5.4 Hydraulic Components for Configurable Versions

Lists hydraulic components for configurable versions.

5.5 Safety and Control Components

Explains safety and control system parts.

5.6 Electrical Panel Control and Power

Details the electrical control and power panel.

Electronic Regulation and Control Interface

Explains electronic regulation, remote control, and keypad functions.

6. ACCESSORIES

6.1 Mechanical Accessories

Describes optional mechanical accessories for the unit.

6.2 Electrical Accessories and System Compatibility

Lists optional electrical accessories and VMF system compatibility.

7. TECHNICAL DATA

7.1 Technical Data Version "A - E"

Presents technical specifications for versions A and E.

8. Technical Data "HA - HE" Version

Presents technical specifications for versions HA and HE.

9. OPERATION LIMIT

9.1 Cooling Mode Limits

Defines operational limits for cooling mode.

9.2 Heating Mode Limits

Defines operational limits for heating mode.

9.3 Project Data Requirements

Provides project-specific data and parameters.

10. CORRECTIVE FACTORS

10.1 Cooling Capacity and Power Correction Factors

Factors to adjust cooling capacity and input power.

10.2 Heating Capacity and Power Correction Factors

Factors to adjust heating capacity and input power.

10.3 For Δt Different to the Nominal

Correction factors for different nominal Delta T.

10.4 Deposit Factors

Factors for tube fouling and deposits.

11. PRESSURE DROP

11.1 System Side Pressure Drop Only Cooling

Pressure drop data for cooling-only operation.

11.2 System Side Pressure Drop Heat Pump Cooling

Pressure drop data for heat pump cooling mode.

11.3 System Side Pressure Drop Heat Pump Heating

Pressure drop data for heat pump heating mode.

12. USEFUL HEADS

12.1 Cooling Low Pump Useful Heads

Displays pump performance curves for cooling, low pump.

12.2 Cooling Low Pump Useful Heads 575V

Displays pump performance curves for cooling, low pump, 575V.

12.3 Cooling High Pump Useful Heads

Displays pump performance curves for cooling, high pump.

12.4 Cooling High Pump Useful Heads 575V

Displays pump performance curves for cooling, high pump, 575V.

12.5 Heat Pump Low Pump Useful Heads

Displays pump performance curves for heat pump, low pump.

12.6 Heat Pump Low Pump Useful Heads 575V

Displays pump performance curves for heat pump, low pump, 575V.

12.7 Heat Pump High Pump Useful Heads

Displays pump performance curves for heat pump, high pump.

12.8 Heat Pump High Pump Useful Heads 575V

Displays pump performance curves for heat pump, high pump, 575V.

13. ETHYLENE GLYCOL SOLUTIONS

13.1 How to Interpret Glycol Curves

Guide on using glycol correction curves for system fluid.

14. EXPANSION TANK CALIBRATION

15. MINIMUM WATER CONTENT

16. PART LOAD

17. SOUND DATA

18. CONTROL AND SAFETY PARAMETERS CALIBRATION

18.1 Thermomagnetic

Details calibration of thermomagnetic safety parameters.