Huawei NetCol8000-A Series Quick Manual page 2

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Engineering Materials
Mandatory Refrigerant
items pipe
Mandatory (Optional)
items Humidifier
water inlet pipe
Drainpipe
Cables
Base
Optional Low-
items temperature
component
cable
Teamwork
networking and
monitoring
cable
Refrigerant R410A
2.1
Do not use unqualified refrigerant. Huawei will not be liable for any equipment damage caused by
unqualified refrigerant.
You can verify the refrigerant authenticity in the following ways:
1. Dial the refrigerant manufacturer's hotline to confirm the refrigerant manufacturer authenticity.
2. Place the refrigerant tank indoors for 24 hours. Use a point thermometer to measure the outer
surface temperature of the refrigerant tank (figure 1) , and connect a pressure gauge to the
tank to measure the internal pressure (figure 2). Find the saturation pressure corresponding to
the measured outer surface temperature from the table on the next page. If the deviation
between the saturation pressure and the measured internal pressure is greater than 0.2 MPa,
the refrigerant does not meet the requirements, and needs to be replaced.
0 m < L ≤ 60 m:
Gas pipe: outer diameter of 7/8 inch (22.22 mm) ; wall thickness of 1.2
mm; operating pressure > 4.5 MPa
Liquid pipe: outer diameter of 5/8 inch (15.88 mm) ; wall thickness of 1.0
mm; operating pressure > 4.5 MPa
60 m < L ≤ 100 m:
Gas pipe: outer diameter of 1 inch (25.4 mm) ; wall thickness of 1.2 mm;
operating pressure > 4.5 MPa
Liquid pipe: outer diameter of 3/4 inch (19.05 mm) ; wall thickness of 1.0
mm; operating pressure > 4.5 MPa
Thermal insulation foam, thickness ≥ 9.2mm
Oil traps and inverted traps , Pipe supports
Connecting rigid pipe: G 3/4-inch inner screw thread to rigid pipe

connector, rigid pipe (made of PP-R or other materials)
Connecting hose: G 3/4-inch inner screw thread to pagoda connector,

hose (made of EPDM or other materials)
Connecting rigid pipe: G 3/4-inch outer screw thread to rigid pipe

connector, rigid pipe (made of PP-R or other materials)
Connecting hose: G 3/4-inch outer screw thread to pagoda connector,

hose (made of EPDM or other materials)
Thermal insulation foam
•
Power cable of NetCol8000-A045 indoor unit: 5 x 10 mm²
(L1/L2/L3/N/PE)
•
Power cable of NetCol8000-A090 indoor unit: 4 x 25 mm²
(L1/L2/L3/N) + 16 mm²(PE)
•
Power cable of outdoor unit: 5 x 2.5 mm²
•
Signal cable of outdoor unit and indoor unit: 3 x 1.5 mm² (for outdoor
units 52273539, 52273539-002, 52273541, and 52273541-002 only)
Base of indoor unit (recommended for downflow unit) , outdoor unit
support or concrete base (determined based on scenarios)
If low-temperature component is configured, an additional 2 x 1.5 mm²
power cable is needed.
If teamwork networking is required, prepare a standard 8pin RJ45
network cable for each device.
If monitoring is required, prepare one 2pin network cable for each device.
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