Gree R410A, Manual

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54
for North America
Photovoltaic Direct-driven VRF
Insulation layer for the
condensate water pipe
Pipe cover
8.2.2 Drain Pipe Installation for IDU
a. Use pipe clips instead of applying glue to connect the hoses provided upon delivery and plastic pipes on the device.
Connect the other end of the joint to the elbow. The height from the suction inlet of the discharge pump is about 200 to 500
mm. Ensure a proper inclination degree while connecting to the main drain pipe.
Roof
Hanger
bracket
Within 300 mm
Drain hose
(accessory)
Raising pipe for
drainage
Ceiling
Clip (accessory)
Less than
1000 mm
8.3. Requirements on Independent Drainage for Each IDU
Requirements on independent drainage design for each IDU are as follows:
a. There must be a proper inclination for the drain pipe.
b. The drain pipe must be installed to facilitate drainage to the largest extent and be as short as possible.
c. If the water is discharged to the outdoor side, it cannot drop to the outdoor ground directly.
8.4. Requirements on Centralized Drainage for IDUs
a. When there are multiple IDUs in the same building, centralized drainage is adopted.
b. When a header pipe is used, the drain pipe of each IDU must be higher than the header pipe.
c. The diameter of the header pipe must be determined on the number and capacity of IDUs.
condensate water.
e. Connect branches to the main pipe from the upper part or side instead of lower part of the main pipe.
f. Insulate all condensate water pipes, especially for joints at elbows.
9 Electric Wiring
1) All electrical installation must be performed by qualified technicians in accordance with local laws,
regulations and this user manual.
2) Use air conditioner specialized power supply and make sure that it is consistent with system’s rated
voltage.
3) Do not pull the power cord with force.
4) Caliber of the power cord must be large enough. A damaged power cord or connection wire must be
replaced by specialized electrical cords.