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Explains the severity and meaning of DANGER, WARNING, CAUTION, and NOTICE symbols.
Lists essential precautions for selecting an installation site, including foundation strength and service space.
Ensures the unit is installed level on a strong base, including foundation height and base requirements.
Specifies piping material, thickness, temper grades, and methods for selecting pipe sizes.
Details pipe sizing for connections between outdoor units, branch kits, and BP units based on capacity.
Guides the selection of REFNET joints and headers based on outdoor unit capacity and number of branches.
Defines terminology and restrictions for piping lengths and level differences in VRV systems.
Details piping setup, maximum allowable lengths, and height differences for mixed VRV and RA unit systems.
Stresses the need for multi-connection piping kits and following manuals for multiple outdoor units.
Details critical steps for brazing, such as nitrogen purging and using appropriate filler alloys.
Emphasizes keeping stop valves open during operation and careful handling of covers and service ports.
Stresses completing piping work before powering units and using appropriate vacuum pumps.
Outlines standard and post-electrical installation procedures for leak testing and vacuum drying.
Details the process for evacuating the system and checking for pressure rise.
Describes pressurizing with nitrogen and applying bubble test solution to detect leaks.
Outlines the procedure for evacuating the system and maintaining vacuum to remove moisture.
Warns about electrical hazards, proper wiring practices, dedicated circuits, and earth leakage protectors.
Details connecting transmission wiring to the system, including single and multi-outdoor unit configurations.
Details transmission wiring connections for single and multi-outdoor unit installations, including terminal designations.
Shows how to fix and connect transmission wiring to terminals, emphasizing polarity and secure clamping.
Details connecting power supply wiring to terminals, including earth wire usage and tightening torques.
Explains how to use push buttons to access modes, select settings, and change values for various functions.
Illustrates the step-by-step process for calculating and adding refrigerant, including automatic and pre-charging procedures.
Details the automatic refrigerant charging process, including its limitations and operational steps.
Describes how to use Mode 1 to monitor unit status, check connected units, and view malfunction codes.
Details four main operation methods: Basic, Automatic VRT, Automatic VRT Smart, and Hi-sensible.
Warns about safety measures, such as closing panels and ensuring all units are ready before starting the test.
Details the steps for conducting the system test operation, including automatic checks and expected indicators.
Guides on addressing any malfunction codes displayed during the test operation and re-testing.
Explains how malfunction codes are displayed (main and sub codes) and the procedure for resetting them after correction.
Emphasizes safety against leaks according to regulations and the properties of R410A refrigerant.
Defines how to calculate maximum refrigerant concentration based on room volume and charge amount.
Outlines the step-by-step process for checking maximum refrigerant concentration and necessary actions.
Provides critical safety warnings and procedures for accessing and working inside the EL.COMPO.BOX.
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General