Safety Precautions and Measures
The important safety precautions and measures that should be followed during the installation and
maintenance are described in the following sections.
Read the manual prior to installation and operation of the unit. Only qualified personnel should move, install,
or service this equipment.
Before working on the equipment, the user reads and considers all precautions, compliance and safety
measures. The unit control must be used exclusively for the purpose which it is intended for; the
manufacturer takes no liability for incorrect use or a modification to the unit control.
Adhere to all the Warnings and Cautionary measures included in the manual.
Please read this manual carefully before installing, maintaining and troubleshooting; especially the
Warning/Danger/Caution information in the User Guide. Apart from the User Guide, also pay attention
to the warning labels on the unit and its components.
This manual is retained for the entire service life of the unit. The user must read all the precautions, danger,
warnings, and cautionary measures mentioned in the manual prior to carrying out any operations on the unit.
Each unit is equipped with an electric insulation which allows the users to work in safe conditions. The main
switch is positioned in terminal box of the indoor unit. Before any maintenance operation, switch o the unit
with this electrical insulation switch to eliminate risks such as electrical shocks, burns, automatic restarting,
moving parts, and remote control. The protective covers plate on terminal box shall be removed only after the
electric power has been cut o by isolation switch.
In the following sections, notice the various cautionary measures and warnings that need to be read carefully
prior to installing or operating the system.
Disconnect the local and remote power supplies prior to working with the unit.
Prior to the installation process, read all the instructions, verify if all the parts are in place, and check the
nameplate to ensure the voltage matches the available utility power for the unit.
The controller doesn’t isolate power from the unit even in the O mode, and some internal components still
require and receive power during the O mode.
Another aspect is the presence of small objects in the fans bay that can result in object ejection during the
fan start-up and there is a probable risk of being hit by these objects resulting in grievous injury and causing
equipment damage.
The unit contains fluids and gases under high pressure. Therefore, the pressure should be relieved before
working with the piping.
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