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Overview of the Terra Ductless split heat pumps, features, and inverter technology.
Diagram and identification of key refrigeration cycle components in indoor and outdoor units.
Explanation of the refrigerant cycle and component functions during cooling mode.
Explanation of the refrigerant cycle and component functions during heating mode.
Graphs illustrating operating characteristics like current vs. compressor speed for different models.
Table detailing operational parameters such as pressure, temperature, and speed for cooling and heating modes.
Explanation of cooling, dry mode, heating processes, and system protections.
Description of remote control functions like mode selection, temperature setting, and timer operations.
Explanation of cooling, dry mode, heating processes, and system protections for larger models.
Details on remote control functions for 18,000/24,000 btuh models, including sleep and fan modes.
Identification and function of each button on the remote control unit.
Steps for connecting refrigerant lines, leak testing, and system evacuation.
Procedure for adding refrigerant to the system using a charging scale.
Guidelines for selecting an appropriate location for the indoor unit, considering drainage and clearances.
Guidelines for selecting an appropriate location for the outdoor unit, considering ventilation and stability.
Steps for correctly installing the indoor unit mounting plate on the wall.
Instructions for cleaning and maintaining the air filters, including the titanium dioxide filter.
Key to symbols and color codes used in the electrical schematic diagrams.
Diagrams and identification of components on the indoor unit's printed circuit board.
Methods for checking the Electronic Expansion Valve (EEV) operation and resistance.
Procedure for checking the 4-way valve operation and solenoid resistance.
Guide for checking temperature sensor readings against resistance tables and replacing faulty sensors.
Table explaining the meaning of different blinking patterns of the outdoor unit indicator lights.
Comprehensive table of malfunctions, display codes, A/C status, and possible causes.
List of malfunctions, their display codes, A/C status, and possible causes for 18/24K units.
Troubleshooting flowchart for Jumper Cap Malfunction (C5 error code).
Explanation of High Pressure, Antifreeze, and Low Pressure protection error codes.
Troubleshooting flowchart for High Discharge Temperature Protection of Compressor (E4 error code).
Procedure for removing the air filter from the indoor unit.
Steps for removing the main guide louvers from the indoor unit.
Procedure for removing the air filter from the indoor unit.
Steps to remove the front case assembly of the indoor unit.
Procedure for removing the air filter from the indoor unit.
Steps to remove the front case assembly of the indoor unit.
Procedure for removing the top cover of the outdoor unit.
Steps for removing the handle assembly from the outdoor unit.
Procedure for removing the handle and valve cover from the outdoor unit.
Steps for removing the right side panel of the outdoor unit.
Procedure for removing the front grille of the outdoor unit.
Steps for removing the back panel of the outdoor unit.
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General