Huawei NetCol8000-A Series User manual

HUAWEI TECHNOLOGIES CO., LTD.
NetCol8000-A (045, 055, 060, 090, 120)
In-room Air Cooled Smart Cooling
Product
Quick Guide
Issue: 04
Part Number: 31500BLY
Date: 2020-10-10

1
1Product Overview
Item
Product Model
Dimensions Without Packing
(H x W x D) (mm)
Optional Component
Indoor
unit
NetCol8000
-A045D
2000 x 900 x 900
Electric heater and wet
film humidifier,
differential pressure
sensor, water leakage
sensor, temperature
and humidity sensor
NetCol8000
-A045U
2000 x 900 x 900
NetCol8000
-A055D
2000
×900×1000
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)
D
= 1094, W1 = 1356, W2 = 1217, H1
= 1107, H2 =
677
Low
-temperature
component
NetCol500
-A060
(52273539
-005)
D = 1094, W1 = 1356,
W2 = 1217, H1
= 1107, H2 = 655
NetCol500
-A060
(52273539
-006)
D = 1094, W1 = 1356,
W2 = 1220, H1
= 1156, H2 =
703
NetCol500
-A080
(52273541)
D = 1094,
W1 = 2186, W2 = 2047, H1
= 1107, H2 = 655
NetCol500
-A080
(52273541
-005)
D = 1094, W1 = 2186,
W2 = 2047, H1
= 1107, H2 = 677
NetCol500
-A120
D = 2189,
W1 = 1356, W2 = 1217, H1
= 1107, H2 = 655
NetCol500
-A110
D = 2189, W1 = 2250, H1 =1770
NetCol8000
-A045, NetCol8000-A055, and NetCol8000-A060 are single-system units.
NetCol8000
-A090 and NetCol8000-A120 are dual-system units.
NetCol500
-A060, NetCol500-A080 and NetCol500-A110 are single-system units. NetCol500-
A120
is a dual
-system unit.
A single
-system indoor unit is used with a single-system outdoor unit; two single-system indoor
units are used together 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.
Copyright © Huawei Technologies Co., Ltd. 2020.
All rights reserved.
①

2
2Engineering Materials
Mandator
y items
Refrigera
nt pipe
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
Mandator
y items
(Optional)
Humidifie
r water
inlet pipe
•
Connecting rigid pipe (for engineering): G 3/4-
inch inner screw thread
to rigid pipe connector, rigid pipe (made of PP-R or other materials)
•
Connecting hose (for engineering): G 3/4-inch inner screw thread to
pagoda connector, hose (made of EPDM or other materials)
Drainpipe
•
Connecting rigid pipe (for engineering): G 3/4-
inch outer screw thread
to rigid pipe connector, rigid pipe (made of PP-R or other materials)
•
Connecting hose (for engineering): G 3/4-inch outer screw thread to
pagoda connector, hose (made of EPDM or other materials)
•
Thermal insulation foam
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 outdoor unit: 4 x 2.5 mm² (L1/L2/L3/PE)
•
Signal cable of outdoor unit and indoor unit: 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 52273539 or
52273541 outdoor unit. This cable is not required for other outdoor
units.)
Base
Base
of indoor unit (recommended for downflow unit) , outdoor unit
support
or concrete base (determined based on scenarios)
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.

3
Optional
items
Low
-
temperature
component
cable
If low
-temperature component is configured, an additional 2 x 1.5
mm²
power cable is needed.
Teamwork
networking and
monitoring
cable
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.
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.
Mapping Between Saturation Temperatures and Pressure 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

4
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 smart cooling product. Otherwise, personal injuries and
device damage may be caused, which is beyond the smart cooling product 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 Outdoor Unit
3.1
7/8 inch Oil
trap
1 inch Oil trap

5
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

6
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.Use a torque wrench to secure the two beams,
and interconnect 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
•Protective cardboard for fins must be removed after installation to protect people from
injuries.
•The installation methods and distance requirements of 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 user manual.

7
Installation Scenario
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 shelter
is above the outdoor unit.
NetCol500-A80

8
NetCol500-A060/A080/A120 NetCol500-A110
Checking Whether the Nitrogen Is Discharged at the Needle Valves
of Outdoor Unit
4.2
b. Install the four legs.
a. Remove the straight flanges.
NetCol500-A060/A080/A120
Horizontal installation (Choose One from the Two Installation
Scenario)
4.3
The strength level of
the concrete platform
must be equal to or
greater than C20.

9
c. Securing the legs to the concrete platform
Model
Width
(W1)
Depth
(D1)
Height
(H)
Distance between
the centers of two
platforms at the
length side (W2)
Distance between the
centers of two
platforms at the
width side (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 platform

10
Model
Width (W1)
Depth (D1)
Height (H)
Distance
between the
centers of two
platforms at
the length
side (W2)
Distance
between the
centers of two
platforms at
the width side
(D2)
NetCol500
-A110
W1 ≥ 250
D1 ≥ 250
150
～250
1035
1076
Concrete platform dimensions (unit: mm)
Vertical Installation (Choose One from the Two Installation Scenario)
4.4
Model
Width (W1)
Depth
(D)
Height
(H)
Height (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 platform must be equal to or greater than C20.

11
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)
5Welding Refrigerant Pipes
Laying the Engineering Pipe
5.1
•When outdoor unit is installed horizontally, the outdoor unit and the low-temperature
component must be at the same horizontal plane. When outdoor unit is installed vertically,
the installing horizontal plane of outdoor unit must not be lower than the installing horizontal
plane of low-temperature component, and the height difference cannot exceed 1.5 m.
•Typically, the pipe length is less than or equal to 100 m.
•When calculating the height difference, the compressor base is regarded as the baseline for
the indoor unit, and the condenser top is regarded as the baseline for the outdoor unit.
•When the outdoor unit is higher than the indoor unit, the maximum height difference is 8 m.
When the outdoor unit is lower than the indoor unit, the maximum height difference is 30 m.
•An inverted U-shaped trap should be added if the indoor unit is higher than the outdoor unit.
An oil trap should be installed every 5 m to 6 m in the vertical direction along the gas pipe to
ensure system reliability.
•The inverted trap should be higher than the top copper pipe of the condenser.
•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.

12
Installation Requirements for Inverted U-shaped Traps and Oil Traps
5.2
Outdoor unit placed horizontally Outdoor unit placed vertically
•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 directly 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
5.3
1. Connect one end of the leather 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 add pressure to
the copper pipe.
3. After drainage, disconnect the leather 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.
(1) Inverted U-shaped trap (2) Oil trap (3) Tilted air pipe (4) Tilted liquid
pipe

13
NetCol8000-A060 UpflowNetCol8000-A060/A120 Downflow
NetCol8000-A045/A055/A090
Downflow-Bottom Piping
Welding the Indoor Unit Ports
5.5
NetCol8000-A045
Upflow-Bottom Piping
NetCol8000-A045/A055/A090 Downflow NetCol8000-A045 Upflow
(1) Gas pipe
(2) Liquid pipe
Exhausting Nitrogen from the Indoor Unit Through Three Needle
Valves
5.4

14
NetCol8000-A045
Upflow-Side Piping
NetCol8000-A045/A055/A090
Downflow-Side Piping
NetCol8000-A060
Upflow-Side Piping
NetCol8000-A060/A120
Downflow-Side Piping
(1) Gas pipe
(2) Liquid pipe
NetCol8000-A060/A120
Downflow-Bottom Piping
NetCol8000-A060
Upflow-Bottom Piping

15
Thermal insulation foam
5/8 inch liquid pipe
7/8 inch gas pipe
(Optional) Connecting Low Temperature Component Pipes
5.8
To indoor unit
liquid pipe To indoor unit gas pipe
To outdoor unit gas pipe
To outdoor unit liquid pipe
•When the outdoor is installed vertically,
the gas pipe should be connected to the
top port and liquid pipe should be
connected to the bottom port.
•A reducing pipe is required when welding
3/4 inch copper pipe to 5/8 inch
connector.
5/8 inch liquid pipe
Thermal
insulation
foam
7/8 inch gas pipe
Welding the Outdoor Unit Ports
5.7
Exhausting Nitrogen at the Outdoor Unit Needle Valves
5.6
Exhaust nitrogen from the three needle valves respectively. Do
not remove the needle valve plug in case of loss or damage.

16
Connecting the Drainpipe
6.2
Connection method
(1) Connector with inner
screw threads
(4) Pagoda connector
(2) Rigid pipe adapter
(5) Hose clamp
(3) Rigid pipe
(6) Hose
The drainpipe from indoor unit to condensate
branch pipe must have gradients (＞1: 100).
Significant upward trend and stagnant water
is not allowed along the pipe.
NetCol8000-A045 UpflowNetCol8000-A045/A055/A090 Downflow
6Connecting Water Pipes
Connecting the Humidifier Water Inlet Pipe
6.1
G 3/4 inch reserved connector
with outer screw thread
G 3/4 inch adapter with inner screw thread1
Matched with the adapter, the pressure
resistance should be at least 0.7 MPa
Note 1:
1. When plastic materials such as PA66 are used, the recommended torque is 5 N.m.
2. When metal materials are used, the recommended torque is 10 N.m. A sealing washer
must be used when an union is used.

17
7Installing Cables
1. Power cables and signal cables should be routed according to the requirements for routing
electrical and extra-low voltage (ELV) cables and in compliance with the cable routing plan.
2. The shielding layer of signal cables must be grounded.
3. The outer insulation sheath should be retained when you route a cable through the
waterproof connector.
4. Power cables for the indoor and outdoor units should be bound using cable clips near the
ports of the power module.
5. In bottom cabling, if it is hard to bend the cable 90°, disassemble the cable and fix it using
the pipe clamp. As the PE cable is long, prepare the five-core cable based on the length of
the PE cable.
6. The following picture shows the dual power supply modes. In single power supply mode,
only QF1 needs to be connected.
Connecting the Equipotential Bonding Cable
7.1
Equipotential bonding point
NetCol8000-A060 UpflowNetCol8000-A060/A120 Downflow

18
NetCol8000-A045 Upflow
Connecting the Indoor Unit Power Cable
7.2
NetCol8000-A045/A055/A090 Downflow

19
NetCol8000-A060 Upflow
NetCol8000-A060/A120 Downflow
Connecting the Outdoor Unit Power Cable
7.3