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Airwell Monobloc R32 - User Manual

Airwell Monobloc R32
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MONOBLOC R32
Air to Water Heat Pump
INSTALLATION
AND OWNER’S MANUAL
Thank you very much for purchasing our product,
Before using your unit , please read this manual carefully and keep it for future reference.
IMPORTANT NOTE:

Table of Contents

Other manuals for Airwell Monobloc R32

Preview: Operation Manual
Operation Manual51 pages

Questions and Answers

  • R
    Rodney BartonAug 2, 2025
    Why is my Airwell Monobloc R32 not heating or cooling properly?
    • K
      Kristina MooreAug 2, 2025
      If your Airwell Heat Pump is on but not heating or cooling as expected, there might be a few reasons: * The temperature setting might be incorrect. Check the controller set point (T4HMAX, T4HMIN in heat mode; T4CMAX, T4CMIN in cool mode; T4DHWMAX, T4DHWMIN in DHW mode). * The water flow could be too low. Ensure all shut-off valves in the water circuit are fully open, the water filter is clean, there's no air in the system, the water pressure is above 1 bar when cold, the expansion vessel isn't broken, and the water circuit resistance isn't too high for the pump. * The water volume in the installation might be too low. Ensure it's above the minimum required value.
  • A
    Alexis SimsAug 7, 2025
    Why does the water pressure relief valve open on my Airwell Monobloc R32?
    • T
      Teresa AndersonAug 7, 2025
      If the water pressure relief valve on your Airwell Heat Pump opens, it could be due to: the expansion vessel being broken (in which case, replace it), or the filling water pressure in the installation being higher than 0.3MPa. Make sure that the filling water pressure in the installation is about 0.15~0.20MPa.
  • Z
    zacharysmithAug 13, 2025
    How to fix a noisy pump (cavitation) in my Airwell Monobloc R32?
    • J
      Jessica WalshAug 13, 2025
      If your Airwell Heat Pump pump is making noise (cavitation), it might be because there is air in the system (purge air). Also, water pressure at pump inlet could be too low. Check on the manometer that there is sufficient water pressure (the water pressure must be > 1 bar when water is cold). Check that the manometer and the expansion vessel are not broken. Check that the setting of the pre-pressure of the expansion vessel is correct.
  • A
    alfred25Aug 17, 2025
    Why is there a space heating capacity shortage at low outdoor temperatures with my Airwell Monobloc R32 Heat Pump?
    • H
      Haley AdkinsAug 17, 2025
      If you're experiencing a space heating capacity shortage at low outdoor temperatures with your Airwell Heat Pump, consider these points: * Ensure that the "OTHER HEATING SOURCE/ BACKUP HEATER" is enabled. * Check whether the thermal protector of the backup heater has been activated. * The backup heater and booster heater can’t operate simultaneously. * Too much heat pump capacity is used for heating domestic hot water. Check that the “t_DHWHP_MAX” and “t_DHWHP_RESTRICT” are configured appropriately. Make sure that the “DHW PRIORITY” in the user interface is disabled. Enable the “T4_TBH_ON” in the user interface/FOR SERVICEMAN to activate the booster heater for domestic water heating.
  • J
    jennifer71Aug 22, 2025
    What to do if DHW mode can’t change to Heat mode immediately on my Airwell Heat Pump?
    • D
      Diane BuckAug 22, 2025
      • Set “t_DHWHP_MAX” to minimum value, the suggested value is 60min. • If circulating pump out of unit is not controlled by unit, try to connect it to the unit. • Add 3-way valve at the inlet of fan coil to ensure enough water flow. Also, the space heating load may be small, meaning no heating is needed. Finally, if the disinfect function is enabled but without TBH, disable the disinfect function or add TBH or AHS for DHW mode.
  • C
    Christopher LarsenAug 27, 2025
    What to do if the water pressure relief valve leaks on my Airwell Heat Pump?
    • J
      Jamie HernandezAug 28, 2025
      If the water pressure relief valve on your Airwell Heat Pump leaks, dirt might be blocking the outlet. Check for correct operation of the pressure relief valve by turning the red knob on the valve counter clockwise: • If you do not hear a clacking sound, contact your local dealer. • In case the water keeps running out of the unit, close both the water inlet and outlet shut-off valves first and then contact your local dealer.

Summary

1 SAFETY PRECAUTIONS

Understanding Safety Symbols

Explains the meaning and usage of DANGER, WARNING, CAUTION, and NOTE symbols.

5 REFRIGERANT INFORMATION

Refrigerant Details and Safety

Provides information on refrigerant type, GWP, and safe handling.

6 INSTALLATION SITE

Site Selection Criteria

Outlines general guidelines for choosing an appropriate installation location.

Cold and Hot Climate Installation

7 INSTALLATION PRECAUTIONS

Dimensions and Mounting Requirements

9.4 Water Piping

Water Volume & Expansion Vessel Checks

Details checks and adjustments for water volume and expansion vessel pre-pressure.

Water Circuit Connection Precautions

9.4.4 Water Circuit Anti-Freeze Protection

Glycol Use and Performance Impact

Explains the effect of glycol on unit performance and provides concentration tables.

Glycol Safety and Water Addition

9.6 Water Piping Insulation

9.7 Field Wiring

Outlines critical safety precautions for electrical wiring installations.

9.7 Field Wiring

Field Wiring Overview

Power Supply Wiring Precautions

Details safety measures for connecting the unit's power supply.

Backup Heater Power Supply Connection

Component Wiring Connections

10 START-UP AND CONFIGURATION

10.1 Climate Related Curves

Explains how to select climate-related curves for optimizing performance.

10.2 DIP Switch Settings

Function and Current Settings

Maximum Operating Current Settings

10.3 Low Ambient Temperature Start-Up

10.4 Pre-Operation Checks

10.7 Field Settings

Field Settings Procedure

Outlines the general procedure for accessing and modifying field settings.

10.7.1 DHW Control Settings

Details settings for domestic hot water (DHW) modes.

10.7.2 Cool Mode Settings

Explains settings for the cooling mode.

10.7.3 Heat Mode Settings

Details settings for the heating mode.

10.7.4 Auto Mode Settings

10.7.5 Temperature Type Setting

10.7.6 Room Thermostat Settings

Explains settings related to room thermostat integration.

10.7.7 Other Heating Source Settings

10.7.8 Holiday Away Setting

10.7.10 Restore Factory Settings

10.7.11 Test Run

Test Run Procedure Overview

Introduces the test run function for verifying component operations.

Point Check Test Run

Details how to perform individual component checks within the test run mode.

Air Purge Test Run

Cool;Heat;DHW Mode Test Runs

10.7.12 Special Function

Special Function Overview

Air Purge and Floor Heating Preheating

Floor Drying Up Function

10.7.13 Auto Restart

Auto Restart Functionality

11 TEST RUN AND FINAL CHECKS

11.1 Final Checks Before Operation

12 MAINTENANCE AND SERVICE

Preventive Maintenance Schedule

13 TROUBLESHOOTING

General Troubleshooting Guidelines

Provides initial steps and general advice for troubleshooting unit issues.

Symptom 1 & 2: Performance & Compressor Issues

Addresses issues where the unit is on but not performing, or the compressor fails to start.

Symptom 3 & 4: Pump Noise & Pressure Relief Valve

Symptom 5 & 6: Valve Leaks & Heating Capacity

13.4 Error Codes (E0-E6)

Common Error Codes and Corrections

Lists common error codes and their corresponding malfunctions and corrective actions.

Error Codes (E7-Ed)

Details error codes related to sensor failures and communication issues.

Error Codes (EE, H0-H5)

Lists error codes for electronic failures, communication errors, and sensor issues.

Error Codes (H6-HA)

Details error codes related to fan failures, voltage issues, and sensor errors.

Error Codes (HE-H5)

Lists error codes for condenser refrigerant outlet temp, PCB failures, and module faults.

Error Codes (HP-P3)

Details error codes for low/high pressure protection and compressor overcurrent.

Error Codes (P4-P6)

Lists error codes for high discharge temperature, plate heat exchanger temp differences, and module protection.

Error Codes (P9, Pd-PL)

Details error codes related to DC fan motor, condenser refrigerant outlet temp, and transducer module temperature.

Error Codes (PP, F1)

Lists error codes for water inlet temperature issues and DC generatrix voltage.

14 TECHNICAL SPECIFICATIONS

General Specifications

Electrical Specifications

15 SAFETY VALVE REPLACEMENT

16 SERVICING INFORMATION

Servicing Precautions and Checks

Refrigerant Handling and Leak Detection

Covers procedures for handling refrigerants, leak detection, and system evacuation.

Charging and Decommissioning Procedures

ANNEX A: Refrigerant Cycle

ANNEX B: Wiring Diagram (1-phase 5;7;9 kW)

Wiring Diagram for 1-phase 5;7;9 kW Units

ANNEX B: Wiring Diagram (1-phase 12;14;16 kW)

Wiring Diagram for 1-phase 12;14;16 kW Units

ANNEX B: Wiring Diagram (3-phase 12;14;16 kW)

Wiring Diagram for 3-phase 12;14;16 kW Units

Airwell Monobloc R32 Specifications

General IconGeneral
BrandAirwell
ModelMonobloc R32
CategoryHeat Pump
LanguageEnglish

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