Materials
Item |
Description |
Type |
|---|---|---|
Standard material |
This type of materials is provided by Huawei, and you can find them in the fittings delivered with the equipment. |
Materials in the packing list |
Auxiliary material |
Customers can purchase this type of materials from Huawei or other vendors. |
Refrigerant, refrigerant oil, pipe component, and cable |
Optional material |
Customers can purchase this type of materials from Huawei based on application scenarios. |
Low temperature component, T/H sensor, water sensor, and smoke sensor |
Engineering procurement material |
This type of materials is not configured by Huawei. Customers need to prepare them by themselves. |
Drainpipe, pipe support, and equipotential ground cable |
R410A Refrigerant
Do not use low-quality refrigerant. Huawei is not responsible for any damage caused by low-quality refrigerant.
- Contact the refrigerant producer to confirm the refrigerant authenticity.
- As shown in Figure 4-21, place the refrigerant in an indoor place with constant temperature and humidity for 24 hours. Then, use a thermometer to measure the temperature of the refrigerant tank outer surface and connect a pressure gauge to the pressure tank to measure the internal pressure. Find the saturation pressure corresponding to the measured outer surface temperature from Table 4-7. 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.
Temperature (°C) |
Saturation Pressure – Gauge Pressure (MPa) |
Temperature (°C) |
Saturation Pressure – Gauge Pressure (MPa) |
Temperature (°C) |
Saturation Pressure – Gauge Pressure (MPa) |
|---|---|---|---|---|---|
0 |
0.7 |
19 |
1.31 |
38 |
2.21 |
1 |
0.73 |
20 |
1.35 |
39 |
2.27 |
2 |
0.75 |
21 |
1.39 |
40 |
2.33 |
3 |
0.78 |
22 |
1.43 |
41 |
2.39 |
4 |
0.81 |
23 |
1.47 |
42 |
2.45 |
5 |
0.84 |
24 |
1.51 |
43 |
2.51 |
6 |
0.87 |
25 |
1.56 |
44 |
2.57 |
7 |
0.9 |
26 |
1.60 |
45 |
2.63 |
8 |
0.93 |
27 |
1.65 |
46 |
2.7 |
9 |
0.96 |
28 |
1.69 |
47 |
2.76 |
10 |
0.99 |
29 |
1.74 |
48 |
2.83 |
11 |
1.02 |
30 |
1.79 |
49 |
2.9 |
12 |
1.05 |
31 |
1.84 |
50 |
2.97 |
13 |
1.09 |
32 |
1.89 |
51 |
3.04 |
14 |
1.12 |
33 |
1.94 |
52 |
3.11 |
15 |
1.16 |
34 |
1.99 |
53 |
3.19 |
16 |
1.19 |
35 |
2.04 |
54 |
3.26 |
17 |
1.23 |
36 |
2.1 |
55 |
3.34 |
18 |
1.27 |
37 |
2.15 |
– |
– |
Refrigerant Oil
The recommended refrigerant oil is DIAMOND FREEZE MEL32 JX. You can purchase it from Huawei or purchase it by yourself after being confirmed by Huawei.
Add refrigerant oil only if it leaks. Contact Huawei to confirm the amount of refrigerant oil to be added.
Oil Trap and Inverted Trap
Item |
Specifications |
|---|---|
Liquid pipe |
L ≤ 60 m: R410A copper 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: R410A copper pipe; outer diameter of 3/4 inch (19.05 mm); wall thickness of 1.0 mm; operating pressure > 4.5 MPa |
|
Gas pipe |
R410A copper pipe; outer diameter of 7/8 inch; thickness of 1.2 mm; operating pressure ≥ 4.5 MPa |
Thermal insulation foam |
Thickness: ≥ 9.2 mm |
Oil trap and inverted trap |
When the outdoor unit is installed at a position higher than the indoor unit, install an oil trap every five to six meters in the vertical direction along the gas pipe and an inverted trap for the inlet and outlet of the outdoor unit to ensure system reliability |
No. |
Name |
Copper Pipe Outer Diameter and Thickness (mm) |
Technical Requirements |
|---|---|---|---|
1 |
Oil trap |
22.2 x 1.2 |
Inner diameter at the expanded end of the copper pipe: 22.4 mm; outer diameter at the shrunk end: 19.5 mm |
2 |
Inverted trap of gas pipes |
22.2 x 1.2 |
Inner diameters at the two expanded ends of the copper pipe: 22.6 mm |
3 |
Inverted trap of liquid pipes |
19.0 x 1.0 |
Inner diameters at the two expanded ends of the copper pipe: 19.0 mm |
4 |
Inverted trap of liquid pipes |
15.9 x 1.0 |
Inner diameters at the two expanded ends of the copper pipe: 16.3 mm |
Note: No dent or bulge is allowed on the surface after the trap is shaped. |
|||
Humidifier Water Inlet Pipe
The humidifier water inlet pipe can be connected using a hose or a rigid pipe.
(1) Internal thread connector: G 1/2 inch; internal thread connector delivered with the water inlet pipe of the smart cooling product |
(2) Rigid pipe conversion adapter: G 1/2 inch; connected to a rigid pipe with external threads |
(3) Rigid pipe: made of PP-R or other materials |
(4) Pagoda connector: G 1/2 inch; connected to a pagoda connector with outer screw threads |
(5) Hose clamp |
(6) Hose: made of EPDM or other materials |
(7) External thread connector: G 3/4 inch, reserved for the smart cooling product humidifier |
(8) Active connector: G 3/4 inch, inner thread PP-R |
(9) Rigid pipe: made of PP-R or other materials |
(10) Elbow: made of PP-R or other materials |
(11) Rigid pipe: made of PP-R or other materials |
The hose clamp (part 5) is configured by default. Other components need to be purchased.
Drainpipe
The drainpipe can be connected using a hose or a rigid pipe.
(1) Internal thread connector: BSPP 1/2 inch, internal thread connector delivered with the smart cooling product |
(2) Conversion adapter: BSPT 1/2 inch; connected to a rigid pipe with external threads |
(3) Rigid pipe: made of PP-R, C-PVC, or other materials |
(4) Pagoda connector |
(5) Hose clamp |
(6) Hose: inner diameter of 3/4 inch; made of EPDM or other materials |
The part in the dotted line box is the internal thread connector delivered with the smart cooling product. The hose clamp (part 5) is configured by default. Other components need to be purchased.
Pipe Support
- The height of the U-shaped pipe clamp is 5 mm less than the pipe diameter (including the thermal insulation foam). Pipe supports are subject to engineering procurement.
- It is recommended that pipe supports and pipe clamps be made of 304 stainless steel.
- Install a support every 1500 mm for the straight sections of pipes, and 500 mm away from each bending point in turning sections.
Cables
Item |
NetCol5000-A050 |
|
|---|---|---|
Active/standby power cable for the indoor unit |
Recommended circuit breaker |
63 A/3P (feature C) |
Recommended cable |
5 x 10 mm2 |
|
Power cable for the air-cooled outdoor unit |
Recommended cable |
5 x 2.5 mm2 (The neutral wire is not used at the customer's site.) |
Power cable for the water-cooled outdoor unit |
Recommended cable |
3 x 1.5 mm2 |
Power cable for the water-cooled module |
Recommended cable |
3 x 1.5 mm2 |
Teamwork control network cable (mandatory for teamwork networking) |
Recommended cable |
8-pin standard network cable |
Power cable for the low temperature component (mandatory when a low temperature component is configured) |
Recommended cable |
2 x 1.5 mm2 |
Communications cable for the water-cooled module and outdoor unit (mandatory when the outdoor unit is equipped with an intelligent temperature monitoring board) |
Recommended cable |
3 x 1.5 mm2 shielded outdoor cable (Electrical power cable, 300 V, SJTW, 3 x 16 AWG, black (three cores: black, white, and green), 10 A, shielded outdoor cable, UL) |
Equipotential ground cable |
Recommended cable |
6 mm2 outdoor copper cable |
The cable flame spread rating must be at least VB.
When selecting, connecting, and routing cables, follow local safety regulations and rules.
When the external conditions such as cable routing or ambient temperature change, perform verification in accordance with the IEC 60364-5-52 or local regulations.
The recommended cables are used only when the following requirements are met:
- Routing mode: The cables are routed over a tray or bracket in a single layer (E or F in IEC 60364-5-523).
- The AC voltage loss is less than 3%.
- Single- or multi-core 90°C-resistant copper flexible cables are used.
- The signal cable between the indoor and outdoor units is mandatory if the outdoor unit is equipped with a temperature control intelligent monitoring board.
- The shielding layer of the signal cable must be grounded.
- Shielded cables cannot be used as power cables for outdoor units.