Related Manuals for Airwell WDI 12
Summarization of Contents
Introduction to Air Conditioning System
General Overview of DUO 3.8 DCI
General overview of the DUO 3.8 DCI Outdoor Unit and its supported indoor units.
Key Features of DUO 3.8 DCI
Lists key features of the DUO 3.8 DCI Outdoor Unit, including inverter technology and operating ranges.
Tubing Connection Requirements
Details on the type of tubing required and reference to appendix for further information.
Indoor Unit Documentation
Information on manuals provided with each indoor unit.
Indoor and Outdoor Unit Matching Table
Table showing compatible indoor units for the DUO 38 DCI outdoor unit.
Product Data Sheets
Outdoor Unit DUO 38 DCI / WDI Specifications
Technical specifications for the DUO 38 DCI outdoor unit and WDI indoor units.
WDI 7 DCI Indoor Unit Specifications
Detailed specifications for the WDI 7 DCI indoor unit.
WDI 9 DCI Indoor Unit Specifications
Detailed specifications for the WDI 9 DCI indoor unit.
WDI 12 DCI Indoor Unit Specifications
Detailed specifications for the WDI 12 DCI indoor unit.
Indoor Unit Combinations
Table detailing various combinations of indoor units and their capacities/power input.
Rating Conditions and Operating Limits
Operating Limits for Cooling and Heating
Specifies the operational limits for cooling and heating modes based on indoor/outdoor temperatures.
Outline Dimensions of Air Conditioning Units
Indoor Unit Dimensions (WDI 7, WDI 9 DCI)
Provides dimensional drawings and measurements for WDI 7 and WDI 9 DCI indoor units.
Indoor Unit Dimensions (WDI 12 DCI)
Provides dimensional drawings and measurements for the WDI 12 DCI indoor unit.
Outdoor Unit Dimensions (DUO 38 DCI)
Shows the external dimensions and key measurements of the DUO 38 DCI outdoor unit.
Performance Data of Air Conditioning Units
WDI 7-7 DCI Performance Data
Cooling and heating performance data for the WDI 7-7 DCI model.
WDI 9-9 DCI Performance Data
Cooling and heating performance data for the WDI 9-9 DCI model.
WDI 9-12 DCI Performance Data
Cooling and heating performance data for the WDI 9-12 DCI model.
Capacity Correction Factors for Tubing Length
Factors affecting performance based on tubing length for cooling and heating.
Pressure Curves for Cooling and Heating Modes
Cooling Pressure Curves (WDI 7-7, WDI 9-9)
Pressure curves for cooling mode for WDI 7-7 and WDI 9-9 models.
Heating Pressure Curves (WDI 7-7, WDI 9-9)
Pressure curves for heating mode for WDI 7-7 and WDI 9-9 models.
Cooling Pressure Curves (WDI 9-12)
Pressure curves for cooling mode for the WDI 9-12 model.
Heating Pressure Curves (WDI 9-12)
Pressure curves for heating mode for the WDI 9-12 model.
Wiring Diagrams for DUO 38 DCI Outdoor Unit
DUO 38 DCI Electrical Wiring Diagram
Electrical wiring diagram for the DUO 38 DCI outdoor unit.
Refrigeration Diagrams
DUO 38 DCI Cooling Mode Refrigeration Diagram
Refrigeration circuit diagram for DUO 38 DCI in cooling mode.
DUO 38 DCI Heating Mode Refrigeration Diagram
Refrigeration circuit diagram for DUO 38 DCI in heating mode.
Control System Operation and Parameters
General Functions and Operating Rules
Overview of DCI software and system operation concept between indoor/outdoor units.
System Operation Concept
Explains the master-slave relationship and NLOAD parameter for capacity control.
Compressor Frequency Control
Details on how compressor frequency is controlled via NLOAD and outdoor air temperature.
Indoor Fan Control
Describes indoor fan speed settings, including Turbo speed activation and conditions.
Heating Element Control
Conditions for starting and stopping the heating element based on load and coil temperature.
Outdoor Fan Control
Explains outdoor fan speed control based on compressor frequency and OAT, with different routines.
EEV (electronic Expansion valve) Control
Details the control logic for the electronic expansion valve based on compressor parameters.
Reversing Valve (RV) Control
States when the reversing valve is active and its switching conditions.
Ionizer Control
Conditions for the ionizer to be active.
Electro Static Filter (ESF) Control
Conditions for the Electro Static Filter to be active.
Base Heater Control
Conditions for the base heater activation based on OAT and heating mode.
Fan Mode Operation
Describes fan operation for manual and auto fan settings.
Cool Mode Operation
Explains NLOAD calculation and fan speed adjustment in cool mode.
Heat Mode Operation
Explains NLOAD calculation and fan speed adjustment in heat mode.
Auto Cool/Heat Mode Logic
Logic for automatic selection between cool and heat modes based on temperature differences.
Dry Mode Operation
Describes operation in dry mode, including fan and compressor behavior.
Indoor Coil Defrost Protection
Details protection logic for indoor coil defrost conditions.
Indoor Coil Over Heating Protection
Details protection logic for indoor coil overheating.
Compressor Over Heating Protection
Details protection logic for compressor overheating.
Compressor Over Current Protection
Details protection logic for compressor over current.
Heat Sink Over Heating Protection
Details protection logic for heat sink overheating.
Outdoor Coil Deicing Protection
Details protection logic for outdoor coil deicing.
Condensate Water Over Flow Protection
Details protection logic for condensate water overflow.
Indoor Unit Dry Contact Functions
Explains the functions of the indoor unit dry contact selected by J8.
Operating Unit via Mode Button
Describes forced operation modes (Cooling, Heating) and preset temperatures.
Indoor Unit Controller Controls and Indicators
Details controls and indicators on the indoor unit controller, excluding floor/ceiling models.
Indoor Unit LCD Display Controls and Indicators
Explains the LCD display layout and indicators for various operating modes.
Outdoor Unit Controller Indicators
Describes the three LEDs on the outdoor unit controller.
Indoor Unit Controller Jumper Settings
Explains jumper settings for the indoor unit controller, including operation and compensation jumpers.
Outdoor Unit Controller Jumper Settings
Details jumper settings for the outdoor unit controller, including model selection.
Entering Test Mode Procedure
Describes the conditions and methods for entering test mode for system diagnostics.
Unit Operation in Test Mode
Explains how the unit operates with fixed settings during test mode.
Dual Split System EEV Control
Details the EEV control logic for dual split systems.
Dual Split System Mode Setting and RV Control
Describes system mode setting and RV control for dual split systems.
Indoor Unit Mode vs. Outdoor Unit Mode Operation
Explains indoor unit operation when modes differ from the outdoor unit.
Dry Contacts Control Functions
Details the function of dry contacts for system control.
Indoor Units Software Parameters
Software parameters related to indoor unit fan speed and NLOAD limits.
Outdoor Units Software Parameters
Software parameters for outdoor units, including compressor, fan speeds, and protection limits.
Troubleshooting and System Checks
Dual Split System Failures and Corrective Actions
Lists common dual split system failures and their corresponding corrective actions.
Checking the Refrigeration System
Guide to checking refrigeration system pressures and performance in test mode.
Judgment by MSMP Diagnostics
Interpretation of MSMP diagnostic codes and LED indicators.
Outdoor Unit Diagnosis by MSMP
Diagnosing outdoor unit faults using MSMP and applying corrective actions.
MSMP Fault Codes for Indoor Unit
Lists MSMP fault codes specific to indoor units.
Indoor Unit Diagnosis by MSMP
Diagnosing indoor unit faults using MSMP and applying corrective actions.
Judgment by MegaTool
Using MegaTool for system state monitoring and diagnosis.
Checking Mains Voltage
Procedure to check mains voltage range for system operation.
Checking Power Input
Procedure to check power input and fuse for indoor/outdoor units.
Checking the PCB
Visual inspection and voltage checks for the printed circuit board (PCB).
Checking the Outdoor Fan Motor
Procedure to check the outdoor fan motor voltage and wiring.
Checking the Compressor
Procedure to check compressor coil resistance.
Checking the Reverse Valve (RV)
Procedure to check the reverse valve voltage in heating mode.
Checking the Electrical Expansion Valve (EEV)
Procedure to check the electrical expansion valve drive voltage.
High Voltage in Outdoor Unit Controller
Warnings about high voltage in the outdoor unit controller.
Charged Capacitors in Outdoor Unit Controller
Warnings and procedures regarding charged capacitors in the outdoor unit controller.
Exploded Views and Spare Parts Lists
Outdoor Unit DUO 38 DCI Exploded View
Exploded view diagram of the DUO 38 DCI outdoor unit.
DUO 38 DCI Outdoor Unit Spare Parts List
Detailed spare parts list for the DUO 38 DCI outdoor unit.
Appendix A: Installation and Operation Manual
Installation and Operation Manual for DUO 38 DCI
Contains the installation and operation manual for the DUO 38 DCI.
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