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IMPORTANT SAFETY INFORMATION
Unpacking Inspection
Indoor unit: nitrogen is sealed during the delivery of indoor units (inside the evaporator), and the red sign at the top of the
green plastic seal cap on the evaporator air pipes of the indoor unit shall be checked first after unpacking. In case the sign
is raised, the nitrogen sealed still exists. Afterwards, the black plastic seal cap at the joint of evaporator liquid pipes of the
indoor unit shall be pressed, to check whether nitrogen still exists. In case no nitrogen is released, ensure the indoor unit
does not have a leak before continuing with installation.
Inspection on Installation Environment
1. Power supply, switches or other high-temperature articles such as the ignition source and oil heater shall be avoided
below the indoor unit.
2. The power supply shall be provided with grounding wire and be reliably grounded.
3. User shall verify in advance whether water/electricity/gas pipelines are hidden in the wall in locations that may
be punctured with an electric drill. It is recommended that the through-wall holes reserved shall be used as much as
possible.
Safety Principles of Installation
1. Favorable ventilation shall be maintained at the place of installation (doors and windows are opened).
2. Open fire or high-temperature heat source (including welding, smoking and oven) higher than 548°F is not allowed within
the scope of flammable refrigerant.
3. Anti-static measures shall be taken, such as the wearing of cotton clothes and cotton gloves.
4. The place of installation shall be convenient for installation or maintenance and cannot be adjacent to heat source and
flammable and combustible environment.
5. In case of refrigerant leakage of the indoor unit during installation, the valve of the outdoor unit shall be closed
immediately, and windows shall be opened, and all the personnel shall be evacuated. After the leakage of refrigerant is
handled, the indoor environment shall be subject to concentration detection. Further handling is not allowed until the
safety level is reached.
6. In case the product is damaged, it must be delivered to the maintenance point. Welding of refrigerant pipelines at the
user's site is not allowed.
7. The installation position of air conditioner shall be convenient for installation or maintenance. Barriers shall be avoided
around the air inlet/outlet of the indoor/outdoor unit, and the electrical appliance, power switches, sockets, valuables, and
high-temperature products within the scope of both sidelines of the indoor unit shall
be avoided.
CAUTION
• Refrigerant should be only added or removed by a licensed HVAC technician.
• Before adding additional refrigerant, perform air purging from the refrigerant pipes and indoor unit using a vacuum
pump,then charge additional refrigerant.
READ AND SAVE THESE INSTRUCTIONS
31-5001077 Rev. 1
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