YMGI WMMS-30CH-V2B(59)5, Руководство по обслуживанию, Страница: 35 / 81

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Notes for Installation and Maintenance
Safety Precautions: Important!
Please read the safety precautions carefully before installation and maintenance.
The following contents are very important for installation and maintenance.
Please follow the instructions below.

The installation or maintenance must be done according to instructions.

Comply with all national electrical codes and local electrical codes.
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Pay attention to the warnings and precautions in this manual.
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All installation and maintenance should be performed by a qualified HVAC Technician.

All electric work must be performed by a licensed contractor according to local regulations and the instructions given
in this manual.
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Be cautious during installation and maintenance. Do not allow incorrect operation or installation to prevent electric
shock and other potential accidents.
WARNINGS
Electrical Safety Precautions:
1. Turn off the power supply to the air conditioner before inspection and maintenance.
2. The air condition must be on a specialized circuit and not share the same circuit with any other appliances.
3. The air conditioner should be installed in suitable location and ensure the power connection is accessible.
4. Make sure the wire to each wiring terminal is firmly connected during installation and maintenance.
5. The unit must be adequately grounded. The grounding wire cannot be used for other purposes.
6. Must use protective accessories such as protective boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of power supply must be corresponding to the live wire, neutral wire and grounding
wire of the air conditioner.
8. The power cord and power connection wires cannot be compressed by any objects.
9. If power cord or connection wire is broken or damaged, it must be replaced by a qualified technician.
10. If the power cord or connection wire is not long enough, replace with a power cord or connection wire that is the correct length
from the manufacture or distributor. Do not splice or lengthen the wiring.
11. The air conditioner must be installed with an appropriately sized circuit breaker in the circuit. The circuit breaker should be all-
pole parting, and the contact parting distance should be greater than 3mm.
12. Make sure all wires and pipes are connected properly, and the valves are opened before energizing.
13. Check to see if there is electric leakage on the unit body. If yes, eliminate the electric leakage before running the system.
14. If the fuse burns out, replace the fuse with a new one of the same specification. DO NOT replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid location, a circuit breaker must be installed.
Installation Safety Precautions:
1. Select the installation location according to the requirements listed in this manual.(See the requirements in installation section)
2. Handle unit transportation with care; the unit should not be carried by only one person if it is more than 44 lbs.
3. When installing the indoor unit and outdoor unit, sufficient mounting bolts must be used. Make sure the installation support for
each unit can support the unit weight.
4. Wear a safety belt if the installation height is higher than 6 feet.
5. Use only approved components or accessories during installation.
6. Make sure no foreign objects are left in the unit after finishing installation.
Refrigerant Safety Precautions:
If refrigerant leaks or requires discharge during installation, maintenance, or disassembly, it should be handled by certified professionals
and in compliance with local laws and regulations.
1. Avoid contact between refrigerant and flame. Exposing refrigerant to fire will generates a poisonous gas. Do not lengthen the
connection pipe by welding.
2. Use specified refrigerant only. Never mix with any other refrigerant. Never allow air to remain in the refrigerant line, as it can
lead to line rupture or other hazards.
3. Make sure there is no refrigerant leaks out when installation is completed.
4. If there is refrigerant leakage, please take sufficient measure to minimize the amount of lost refrigerant.
5. Never touch the refrigerant piping or compressor without wearing gloves to avoid burns or frostbite.