Huawei NetCol8000-A045D User manual

HUAWEI TECHNOLOGIES CO., LTD.
NetCol8000-A(045, 055, 060, 090, 120) In-room
Air Cooled Smart Cooling Product
Quick Guide
Issue: 05
Part Number: 31500BLY
Date: 2021-10-20

1Copyright © Huawei Technologies Co., Ltd. 2021.
All rights reserved.
•The information in this document is subject to change without notice. Every effort has been
made in the preparation of this document to ensure accuracy of the contents. All statements,
information, and recommendations in this document do not constitute a warranty of any
kind.
•Only qualified or trained technical personnel are allowed to perform operations on the
device. Operation personnel should understand the composition and working principles of the
smart cooling system and local regulations.
•Before installing the device, read the user manual carefully to get familiar with product
information and safety precautions. Huawei will not be liable for any consequence caused by
failure to follow the storage, transportation, installation, and operation regulations specified
in this document and the user manual.
•Use insulated tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
1Product Overview
Item
Product Model
Dimensions Without Packing
H1 (H2) x W x D1 (D2) (mm)
Optional
Component
Indoor
unit
NetCol8000
-A045D
2000 x 900 x 900
Heater,
humidifier,
micro
differential
pressure
sensor, water
sensor,
temperature
and humidity
(T/H) sensor
NetCol8000
-A045U
2000 x 900 x 900
NetCol8000
-A055D
2000 x 900 x 1000
NetCol8000
-A060D
2000 x 1100 x 1000
NetCol8000
-A060U
2000 x 1100 x 1000
NetCol8000
-A090D
2000 x 1800 x 1000
NetCol8000
-A120D
2000 x 2200 x 1000
Outdoor
unit
NetCol500
-A060 (52273539) ①
1107 (677) x 1094 x 1356 (1219)
Low
temperature
component
NetCol500
-A060 (52273539-005)①
1107 (655) x 1094 x 1356 (1219)
NetCol500
-A060 (52273539-006)①
1156 (703) x 1094 x 1356 (1219)
NetCol500
-A080 (52273541) ①
1107 (677) x 1094 x 2186 (2047)
NetCol500
-A080 (52273541-005)①
1107 (655) x 1094 x 2186 (2047)
NetCol500
-A120
1107 (655) x (2189 x 1356 (1219)
NetCol500
-A110
1770 x 1100 x 2250
Water
-
cooled
module
NetCol500
-W055
530 x 1510 x 262
None
NetCol8000
-A045, NetCol8000-A055, and NetCol8000-A060 are single-system indoor units.
NetCol8000
-A090 and NetCol8000-A120 are dual-system indoor units.
NetCol500
-A060, NetCol500-A080, NetCol500-A110, and NetCol500-W055 are single-system
outdoor units. NetCol500
-A120 is a dual-system outdoor unit.
A single
-system indoor unit is used with a single-system outdoor unit; two single-system indoor
units are used with a dual
-system outdoor unit; a dual-system indoor unit is used with two single-
system outdoor units; a dual
-system indoor unit is used with a dual-system outdoor unit.
①
You can view the outdoor unit code on the equipment barcode.

2
2Onsite Preparation
•Shielded cables cannot be used as power cables for outdoor units.
•Signal cables must be shielded cables, and the shield layer must be reliably grounded.
Otherwise, device communication is affected.
Item
Description
Type
Standard material
This type of materials is delivered
with the unit and can be obtained
from the fittings bag.
Materials in the packing list
Auxiliary material
Customers can purchase this type
of materials from the supplier or
other vendors.
Refrigerant, refrigerant oil, pipe
component, power cable, and
communications cable
Optional material
Customers can purchase this type
of materials from the supplier
based on application scenarios.
T/H sensor, micro differential
pressure sensor, water sensor, and
smoke sensor
Engineering procurement
material
Customers need to purchase this
type of materials by themselves.
Drainpipe, humidifier water inlet
pipe, pipe support, and
equipotential ground cable
Water-cooled module

3
Refrigerant
pipes
L ≤ 60 m:
Gas pipe: outer diameter: 7/8 inch (22.22 mm); wall thickness: 1.2 mm;
operating pressure: > 4.5 MPa
Liquid pipe: outer diameter: 5/8 inch (15.88 mm); wall thickness: 1.0 mm;
operating pressure: > 4.5 MPa
60 m < L ≤ 100 m:
Gas pipe: outer diameter: 1 inch (25.4 mm); wall thickness: 1.2 mm; operating
pressure: > 4.5 MPa
Liquid pipe: outer diameter 3/4 inch (19.05 mm), wall thickness: 1.0 mm;
operating pressure: > 4.5 MPa
Thermal insulation foam: thickness ≥ 13 mm
Oil trap, inverted trap, and refrigerant pipe support
Recommended
cables
•
Power cable of NetCol8000-A045 indoor unit: 5 x 10 mm² (L1/L2/L3/N/PE)
•
Power cable of NetCol8000-A055 indoor unit: 5 x 10 mm² (L1/L2/L3/N/PE)
•
Power cable of NetCol8000-A060 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 NetCol8000-
A120 indoor unit: 4 x 25 mm² (L1/L2/L3/N) + 16
mm² (PE)
•
Power cable of the air cooled outdoor unit: 4 x 25 mm² (L1/L2/L3/PE);
power cable of the water-cooled module: 3 x 1.5 mm²(L/N/PE)
•
(Optional) Signal cable of the indoor and outdoor units: 3 x 1.5 mm²(This
cable is required only for the outdoor unit configured with a temperature
control intelligent monitoring board, that is, the air cooled outdoor unit and
water-cooled module: 52273539, 52273541.)
•
Equipotential ground cable: 16 mm²
•
(Optional) T/H sensor cable, teamwork control and monitoring
communications cables: shielded network cable of Cat 5e or higher
specifications
(Optional)
Humidifier
water inlet
pipe
•
Rigid pipe connection: G 3/4 inch rigid pipe connector with internal threads,
rigid pipe (such as PP-R pipe)
•
Hose connection: G 3/4 inch pagoda connector with internal threads, hose
(such as EPDM pipe)
Drainpipe
•
Rigid pipe connection: G 3/4 inch rigid pipe connector with external threads,
rigid pipe (such as PP-R pipe)
•
Hose connection: G 3/4 inch pagoda connector with external threads, hose
(such as EPDM pipe)
•
Thermal insulation foam
Base
Indoor unit base (mandatory for the downflow model), outdoor unit support or
outdoor unit concrete base (depending on the scenario)
Low
temperature
component
cable
If a low temperature component is configured, an additional 2 x 1.5 mm
2
power
cable is required.
When the NetCol8000-A045/A055/A060 indoor unit is used,
prepare one group of outdoor unit cables for each indoor unit. (If
two indoor units are used, prepare two groups of outdoor unit
cables.) When the NetCol8000-A090/120 indoor unit is used,
prepare two groups of outdoor unit cables for each indoor unit.

4
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 , and connect a pressure gauge to the tank
to measure the internal pressure. Find the saturation pressure corresponding to the
measured outer surface temperature from the following table. 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.
Mapping Between Saturation Temperatures and Pressures of R410A
Saturation
Temperature (
ºC
)
Gauge
(MPa)
Saturation
Temperature (
ºC )
Gauge
(MPa)
Saturation
Temperature (
ºC
)
Gauge
(MPa)
10
0.99
19
1.31
28
1.69
11
1.02
20
1.35
29
1.74
12
1.05
21
1.39
30
1.79
13
1.09
22
1.43
31
1.84
14
1.12
23
1.47
32
1.89
15
1.16
24
1.51
33
1.94
16
1.19
25
1.56
34
1.99
17
1.23
26
1.60
35
2.05
18
1.27
27
1.65
36
2.10

5
7/8 inch gas pipe
inverted trap
3/4 inch liquid
pipe inverted trap
5/8 inch liquid
pipe inverted trap
1 inch gas pipe
inverted trap
Oil Trap and Inverted Trap (Unit: mm)
2.2
3Installing the Indoor Unit
1. Read the related user manual or instructions before installing the NetCol8000-A.
2. The unit in this document is a fully configured NetCol8000-A. If some components are not
configured, skip the corresponding steps.
3. You are recommended to use tools that are fully insulated when installing devices.
4. Only engineers from the manufacturer or engineers certified by the agent are allowed to
install, commission, and maintain the smart cooling product. Otherwise, personal injuries
and device damage may be caused, which is beyond the warranty range.
NetCol8000-A045 Upflow
NetCol8000-A045/A055/090 Downflow
Liquid pipe
needle valve
Exhaust pipe needle valve
Low-pressure needle
valve
Liquid pipe
needle valve
Exhaust pipe
needle valve
Low-pressure
needle valve
Checking Whether the Nitrogen Is Discharged at the Needle Valves
of the Outdoor Unit
3.1
7/8 inch oil trap 1 inch oil trap

6
NetCol8000-A060 UpflowNetCol8000-A060/120 Downflow
Liquid pipe
needle valve
Exhaust
pipe needle
valve
Low-pressure
needle valve
Liquid pipe
needle valve
Exhaust
pipe needle
valve
Low-pressure needle valve
Securing to the Floor or Base
3.4
Removing Compressor Fasteners
3.3
Removing the Pallet
3.2

7
Lowering a Fan (Applicable to Downflow Units)
3.5
1. Remove the six screws
and then the beam.
2. Rotate the fan upward by 30 degrees, and
pull the rotating shaft of the fan to the
outermost side.
4. After the fan rotates to the position shown in the
figure, push the fan back to the horizontal position.
5. Tighten the six screws on the beam and fan
support, and connect the fan cables using the
interconnection terminal reserved in the cabinet.
3. Slowly rotate the fan by 90 degrees and ensure
that the rotating shaft of the fan is on the
outermost side. Exercise caution when handling
the fan to avoid body injury.
4Installing the Outdoor Unit
•Before installing the outdoor unit, keep the protective paperboard for the fins at the bottom
to protect people from injuries during the installation. Remove it after installation.
•The installation methods and distance requirements for installing NetCol500-A060,
NetCol500-A080, and NetCol500-A120 outdoor units are the same. This section describes
how to install a NetCol500-A060. The NetCol500-A110 outdoor unit does not support vertical
installation.
•If the space does not meet the requirements of the recommended layout, you can use any of
the layouts (applicable only to NetCol500-A060) in the user manual.

8
Installation Scenarios
4.1
Unit: mm
Horizontal Installation
NetCol500-A060 NetCol500-A110
Unit: mm
Vertical Installation
Compact Installation
Unit: mm
NetCol500-A060 NetCol500-A110
•Make sure that no blockage is
above the outdoor unit.
•When installing an outdoor
unit vertically, do not place a
low temperature component
at the air exhaust vent. Keep
the low temperature
component 600–2000 mm
away from the outdoor unit.
NetCol500-A80

9
NetCol500-A060/A080/A120 NetCol500-A110
Checking Whether the Nitrogen Is Discharged at the Needle Valves
of the Outdoor Unit
4.2
b. Install the four legs.a. Remove the corner fittings.
NetCol500-A060/A080/A120
Horizontal Installation (Choose Either Horizontal or Vertical
Installation)
4.3
The strength level of
the concrete platforms
must be equal to or
greater than C20.

10
c. Secure the legs to the concrete platforms.
Model
Block Width (W1)
Block
Depth
(D1)
Block
Height
(H)
Center
Distance
(W2)
Center
Distance (D2)
NetCol500
-A060
W1 ≥ 250
D1 ≥ 250
150
–250
944
1064
NetCol500
-A080
W1 ≥ 250
D1 ≥ 250
150
–250
944
1894
NetCol500
-A120
W1 ≥ 250
D1 ≥ 250
150
–250
2038
1064
Concrete platform dimensions (unit: mm)
NetCol500-A110
Unit: mm
The strength level of
the concrete platform
must be equal to or
greater than C20.
Securing the legs to the concrete platforms

11
Model
Block Width (W1)
Block
Depth (D1)
Block
Height (H)
Center
Distance
(W2)
Center
Distance (D2)
NetCol500
-A110
W1 ≥ 250
D1 ≥ 250
150
–250
1035
1076
Concrete platform dimensions (unit: mm)
Vertical Installation (Choose Either Horizontal or Vertical Installation)
4.4
Model
Block Width
(W1)
Block
Depth (D)
Block
Height
(H)
Center
Distance
(W2)
E
NetCol500
-A060 (52273539,
52273539
-005)
W1 ≥ 300
D ≥ 500
150
–250
1150
1037
NetCol500
-A060 (52273539-006)
W1 ≥ 300
D ≥ 500
150
–250
1120
978
NetCol500
-A080
W1 ≥ 300
D ≥ 500
150
–250
1920
1742
NetCol500
-A120
W1 ≥ 300
D ≥ 500
150
–250
2120
1217
Concrete platform dimensions (unit: mm)
NetCol500-A060/A080/A120
The strength level of the concrete platforms must be equal to or greater than C20.

12
Model
A
B
C
D
E
F
NetCol500
-A060 (52273539, 52273539-005)
1287
1257
387
478
1037
1126
NetCol500
-A060 (52273539-006)
1290
1260
447
538
978
1066
NetCol500
-A080
2117
2087
387
478
1742
1830
NetCol500
-A120
2259
2229
387
478
1217
2100
Interface dimensions (unit: mm)

13
5Installing a Water-Cooled Module
Installation Requirements
5.1
Installation Requirements
Unit: mm
Checking for Air Pressure at Needle Valves
5.2
Needle valve on the refrigerant side
Needle valve on the cooling
water side
Installing a Water-Cooled Module
5.3
Installation environment: enclosed indoor environment in which the temperature and humidity
can be controlled within the ranges of 4°C to 45°C and 5% RH to 90% RH respectively. If the
indoor installation position is ventilated, it should be more than 5 km away from the sea or
pollution sources (such as salt lakes, chemical plants, mineral plants, thermal power plants, and
coal mines).
Horizontal Installation on Concrete Bases Stacking Scenario
A maximum of four layers of water-
cooled modules can be stacked. If four
layers are stacked, the minimum height
of the installation space is 3 m.
Use the bolts in the fitting bag to secure
the module at the mounting holes (4
PCS).

14
6Connecting Refrigerant Pipes
Laying Engineering Pipes
6.1
•When the outdoor unit is installed horizontally, the outdoor unit and the low temperature
component must be at the same horizontal plane. When the outdoor unit is installed vertically,
the outdoor unit must not be lower than the low temperature component, and the height
difference cannot exceed 1.5 m.
•If the outdoor unit is placed higher than the indoor unit, when calculating the height difference,
use the bottom of the compressor as the reference for the indoor unit and the top of the
condenser as the reference for the outdoor unit. The maximum height difference is 30 m.
•If the outdoor unit is placed lower than the indoor unit, when calculating the height difference,
use the bottom of the compressor as the reference for the indoor unit and the bottom of the
condenser as the reference for the outdoor unit. The maximum height difference is 8 m.
•An oil trap should be installed every 5 m to 6 m in the vertical direction along the gas pipe to
ensure system reliability.
•When welding pipes, ensure that the pipes are dry. You are recommended to weld the pipes
between the indoor and outdoor units, then connect the two ends of the pipe to the indoor
unit and outdoor unit.
•Use a rubber hose to connect the nitrogen cylinder which connecting the reducing valve and
the end of the copper pipe, then fill nitrogen at 0.03–0.05 MPa into the copper pipe to avoid
internal oxidation.
•After the pipe in the middle is welded, charge nitrogen into the pipe from one pipe end to clear
the foreign matter inside.
•Do not expose welding positions to the environment for a long time. Take sealing measures for
welding positions. If foreign matter exists at the welding position, rubber it out using non-
water alcohol or damp cloth before the welding.
•During the welding, take protective measures, such as spreading a piece of wet cloth, around
the welding position, to avoid burning the bottom panel, top panel, side panel, internal
components, needle valve, other pipes, thermal insulation foam, power cables, labels, and tags.
Installation Requirements for Inverted U-shaped Traps and Oil Traps
6.2
NetCol500-A060/NetCol500-A080/NetCol500-A120
If the outdoor unit is higher than the indoor unit, add a reverse U-shaped trap at the inlet and
outlet of the outdoor unit. The inverted U-shaped traps should be higher than the top copper
pipe of the condenser.

15
Outdoor unit placed horizontally Outdoor unit placed vertically
(1) Inverted U-shaped traps (2) Oil traps (3) Tilted gas pipe (4) Tilted liquid pipe
NetCol500-A110
(1) Inverted U-shaped trap (2) Oil traps (3) Tilted gas pipe (4) Tilted liquid pipe
Side pipe routing Bottom pipe routing
If the outdoor unit is higher than the indoor unit, add a reverse U-shaped trap at the liquid pipe.
The inverted U-shaped trap must be at least 1 m higher than the bottom of the outdoor unit.

16
•When routing pipes, ensure that the pipes are level and straight. The positive height
difference cannot exceed 30 m, the negative height difference cannot exceed 8 m, and the
total pipe length cannot exceed 100 m.
•The metal support should not be in direct contact with copper pipes. The gradient of
horizontal pipes should meet the design requirements. The welding points must be smooth
and even, free from any abnormalities such as beading, buildup, crack, roughness, bubble,
or air hole.
Pipe Drainage
6.3
1. Connect one end of the rubber hose to the nitrogen cylinder with a reducing valve and
connect the other end to the refrigerant copper pipe in a higher position.
2. Adjust the nitrogen reducing valve to set the nitrogen pressure to 10 bar, and increase the
pressure of the copper pipe.
3. After drainage, disconnect the rubber hose from the copper pipe and seal the two ends of the
pipe using tape to prevent foreign matter from entering the pipe.
4. After completing the operations, close the nitrogen cylinder valve.
NetCol8000-A060 UpflowNetCol8000-A060/A120 Downflow
NetCol8000-A045/A055/A090 Downflow NetCol8000-A045 Upflow
Exhausting Nitrogen from the Indoor Unit Through Three Needle
Valves
6.4

17
NetCol8000-A045/A055/A090
Downflow-Bottom Piping
Welding the Indoor Unit Ports
6.5
NetCol8000-A045
Upflow-Bottom Piping
NetCol8000-A060/A120
Downflow-Bottom Piping
NetCol8000-A060
Upflow-Bottom Piping
(1) Gas pipe (2) Liquid pipe

18
NetCol8000-A060
Upflow-Side Piping
NetCol8000-A060/A120
Downflow-Side Piping
NetCol8000-A045
Upflow-Side Piping
NetCol8000-A045/A055/A090
Downflow-Side Piping
(1) Gas pipe (2) Liquid pipe

19
Exhausting Nitrogen at the Outdoor Unit Needle Valves
6.6
Do not remove the needle valve plugs in case of loss or damage.
Water-Cooled Module
NetCol500-A060/A080/A120 NetCol500-A110
Thermal insulation foam
5/8 inch liquid pipe
7/8 inch gas pipe 5/8 inch liquid pipe
Thermal
insulation
foam
7/8 inch gas pipe
Welding the Outdoor Unit Ports
6.7