Installation; Precautions For Installation - Gree GWHD(48S)NM3CO Service Manual

INSTALLATION

1 PRECAUTIONS FOR INSTALLATION

1.1 Precautions for Installation
Before installation, please ensure the installing site, power ratings, possible operating range (pipe distance,
height difference between indoor and outdoor unit, power voltage) and installing space are correct and suitable.
To ensure correct installation, please make sure to read the Safety Considerations thoroughly before
starting the installation works.
After completing the installation and test run and confirming that all are normal, please introduce to the
client on how to use and repair the machine according to the Operating Instructions. Besides, please
deliver the considerations herein to the clients together with the Operating Instructions, and ask them to
keep properly.
Warning!
：It indicates improper operation which will lead to human casualty or severe injury.
Caution!
: It indicates improper operation which will lead to injury or property damage.
The installation and relocation should be left to the appointed service center and must be installed by professional or
qualified persons. Otherwise, it maybe cause water leakage, electric shocks or fire etc.
Please install the air conditioner according to the instructions given in the installation instructions. Improper
installation may cause fall down, water leakage, electric shock or fire etc.
To install a large air-conditioning system in a small room, please make sure to take measures to prevent that the
refrigerant will not exceed the limit concentration in case of leakage. For the measures to prevent the refrigerant from
exceeding the limit concentration, please consult your dealer. If no proper measures, it might cause human suffocation
in case of refrigerant leakage.
Please install the unit on a solid place where is strong enough to support the weight of the unit; Otherwise, the unit
would fall down and cause injury or death.
Please keep the room well-ventilated and it could avoid oxygen deficit.
Electrical work should be carried out in accordance with the installation manual and the local laws and regulations.
Insufficient capacity or incomplete electrical work may cause electrical shock or fire etc.
Please use suitable cables and connect them securely. Please fix the terminal joints securely. The terminal
connection shall not be affected due to any external force applied onto the cable. Improper connection and fixing may
cause heating and fire accidents.
The power supply must adopt the special circuit with air switch protection and assure it has enough capacity; The
unit will be turned on or off according to your requirement automatically, please do not turn on or off the unit
frequently. Otherwise, disadvantage effect may be caused to the unit.
Never cut off or damage power cables and control wires. If the power cable and signal control wire were damaged,
it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
The electrical work should use a cable length enough to cover the entire distance with no connection. If it is
unavoidable, please make sure the connection should be reliable and the external forces will not act on the wires.
Otherwise it will cause electrical shock or fire etc.
When erecting or relocating the air conditioner, do not let any air enter into cooling circulation system except the
specified refrigerant. If any air is mixed, abnormal high pressure will occur in the cooling circulation system, thus
causing crack or human injury accidents.
Warning !
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61 INSTALLATION