4
3
Exhausting Nitrogen from an Indoor Unit
1. Open the stop valve for the gas pipe
of the indoor unit.
2. Loosen the needle valve nut, connect a rubber hose
and a pressure gauge, and slowly exhaust nitrogen.
3. After the airflow sound disappears, reinstall the
needle valve nut.
4
Installing an Outdoor Unit
•
To avoid a fire disaster, install an outdoor unit in a dry and well-ventilated place without
flammable gas leakage.
•
Select a place away from direct sunlight and radiation from other heat sources. If the
sunlight or heat radiation cannot be avoided, cover the outdoor unit.
•
Do not install an outdoor unit in a place with much salt or corrosive gas.
•
When installing the outdoor unit, ensure that the air intake vent and air exhaust vent of the
condenser are not dirty or blocked. Install an outdoor unit in a clean area that is away from
residential areas.
•
At a high place with strong winds, install the outdoor unit against a wall to ensure the
normal operating of fans. Install a baffle plate when necessary to prevent the outdoor unit
from toppling in strong winds.
•
Install an outdoor unit against a wall if possible. If the site conditions cannot meet the
requirements and the local outdoor temperature may be below –10
°
C, install a baffle plate
by referring to the space requirements. The baffle plate height and width should be greater
than or equal to the outdoor unit height and width, respectively.
•
If the site installation environment is complicated and the preceding conditions are not met,
contact Huawei technical support.
(1) Pressure gauge (2) Gas pipe needle valve
(3) Liquid pipe needle valve