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Airwell WDI 7 - User Manual

Airwell WDI 7
53 pages
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DUO 38 DCI / DAKOTA
Indoor Units Outdoor Units
WDI 7
DUO 38 DCI
WDI 9
WDI 12
JUNE – 2009
REFRIGERANT
R410A
HEAT PUMP
SM DUO38I 1-A.2 GB

Questions and Answers

  • B
    Brandon WashingtonAug 2, 2025
    Why is my Airwell Air Conditioner compressor running but not cooling?
    • L
      lopezcrystalAug 2, 2025
      If your Airwell Air Conditioner's compressor is running, but the unit isn't cooling, the Electronic Expansion Valve (EEV) might be stuck in the closed position. You should check the EEV.
  • R
    Robert HouseAug 9, 2025
    What to do if one Airwell WDI 7 indoor unit is not cooling and the other is leaking?
    • K
      Kelly NguyenAug 9, 2025
      If one Airwell Air Conditioner indoor unit is operating in cool mode but has no cooling capacity, while the other unit has water leaks or freezing problems, the communication wires between the two indoor units may be switched. Check and correct the communication wire connections.
  • J
    john09Aug 16, 2025
    What to do if the Airwell WDI 7 indoor fan won't start?
    • P
      Patrick GlennAug 17, 2025
      If the indoor fan of your Airwell Air Conditioner doesn't start, but the louvers are open and the green LED is lit, here are a few things to check: * If the unit is in heat mode, the coil may not be warm yet. Try switching to cool mode. * The outdoor unit might be in the opposite mode. Change the operation mode and see if the fan starts. * There may be a problem with the PCB or capacitor. Set the fan to high speed and check the power supply to the motor. For Triac controlled motors, it should be higher than 130VAC; for fixed speed motors, it should be higher than 220VAC. If the power supply is OK, replace the capacitor. If not, replace the controller.
  • M
    Mary SimpsonAug 25, 2025
    How to fix an Airwell WDI 7 when the power indicator is off?
    • B
      Brittany DuffyAug 26, 2025
      If the power supply indicator (Red LED) on your Airwell Air Conditioner indoor unit isn't lit, it indicates a power supply problem. Check the power supply from the outdoor unit. If the power supply is OK, then check the display and display wiring. If the display and wiring are OK, replace the controller.

Summary

Introduction to DUO 38 DCI Outdoor Unit

Key Features of the DUO 3.8 DCI Outdoor Unit

Highlights main features like DC Inverter, R410A, high COP, and operational temperature limits.

Product Data Sheet and Specifications

Outdoor Unit DUO 38 DCI Specifications

Provides detailed technical specifications for the DUO 38 DCI outdoor unit, including capacity, power, and dimensions.

Indoor Unit Data Sheets

Rating Conditions and Operating Limits

Standard Conditions and Operating Limits

Specifies standard rating conditions and defines operational limits for cooling and heating modes.

Performance Data and Correction Factors

WDI 7-7 DCI Performance Data

Details cooling and heating capacities (kW), power input, and capacity correction factors for WDI 7-7 DCI.

WDI 9-9 DCI Performance Data

Presents cooling and heating capacities (kW), power input, and capacity correction factors.

WDI 9-12 Performance Data

Details cooling and heating capacities (kW), power input, and capacity correction factors.

Pressure Curve Analysis

Cooling Pressure Curves for WDI 7-7;9-9 DUO 38 DCI

Illustrates suction and discharge pressure vs. outdoor temperature for cooling.

Electrical Data and Wiring Specifications

Wiring Diagrams

Refrigeration Flow Diagrams

Tubing Connections and Installation

System Protection Functions

Indoor Coil and Compressor Protections

Details protections for indoor coils (defrost, overheating) and compressor (overheating, overcurrent).

Outdoor Unit Protections and Procedures

Covers heat sink, deicing procedures, and condensate water over flow protection.

Water Over Flow and Deicing Protections

Covers outdoor deicing procedures, condensate water over flow protection, and logic levels.

Unit Configuration: Jumper Settings

Test Mode Operation

Entering and Operating in Test Mode

Details methods to enter test mode and how the unit operates with fixed settings.

Software (SW) Parameter Configuration

Troubleshooting Guide

Dual Split System Failures and Corrective Actions

Provides a table listing common dual split system symptoms, probable causes, and corrective actions.

System Diagnostics and Refrigeration Checks

Refrigeration System Checks and Test Mode

Guides on checking the refrigeration system using Test Mode and performance curves.

MSMP Diagnostics and Outdoor Unit Fault Codes

Describes MSMP diagnosis for outdoor units, probable causes, and corrective actions for faults.

MSMP Diagnostics and Fault Codes

Indoor Unit MSMP Fault Codes

Lists MSMP fault codes for indoor units, indicating problems like sensor failures and communication issues.

Advanced Troubleshooting and Diagnostics

Indoor Unit MSMP Diagnosis and Corrective Actions

Details MSMP diagnosis for indoor units, probable causes, and corrective actions for various faults.

Component Checks and Safety Precautions

High Voltage and Charged Capacitor Safety Precautions

Provides critical safety advice for handling high voltage and charged capacitors in the outdoor unit controller.

Airwell WDI 7 Specifications

General IconGeneral
BrandAirwell
ModelWDI 7
CategoryAir Conditioner
LanguageEnglish

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