Huawei NetCol8000-A Series User manual

Copyright © Huawei Technologies Co., Ltd. 2020 All rights reserved.
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
-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
Category B: D = 1094,
W1 = 1356,
W2 =
1217
, H1 = 1107, H2 = 655
Category C: D = 1094,
W1 = 1356,
W2 =
1217
, H1 = 1156, H2 = 725
Low
-temperature
component
NetCol500
-A080
D = 1094,
W1 = 2186, W2 = 2047, H1 =
1107, H2 = 655
NetCol500
-A120
D = 2189,
W1 = 1356, W2 = 1217, H1 =
1107, H2 = 655
NetCol500
-A110
D = 2189, W1 = 2250, H1 =1769
NetCol8000
-A045 and NetCol8000-A060 is a single-system unit. NetCol8000-A090 and NetCol8000-
A120 is a dual
-system unit.
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
Issue: 02
Part Number: 31500BLY
Date: 2020-04-20
NetCol8000-A (045, 060, 090, 120) In-
room Air Cooled Smart Cooling Product
Quick Guide

2
Mandatory
items
Refrigerant 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
Mandatory
items
(Optional)
Humidifier 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-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) (Prepare
tow groups of cables for the dual-system outdoor unit)
•
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. The following figure shows
the position of the temperature control monitoring board. 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)
2Engineering Materials

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
3Installing the Indoor Unit
Oil Trap and Inverted Trap (Unit: mm)
2.2
7/8 inch Oil trap 1 inch Oil trap
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.

5
Checking Whether the Nitrogen Is Discharged at the Three Needle Valves
3.1
NetCol8000-A045 Upflow
NetCol8000-A045/090 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
NetCol8000-A060 Upflow
NetCol8000-A060/120 Downflow
Liquid pipe
needle valve
Exhaust
pipe needle
valve
Low-pressure
needle valve
Removing the Pallet
3.2
Liquid pipe
needle valve
Exhaust
pipe needle
valve
Low-pressure needle valve

6
Securing to the Floor or Base
3.4
Removing Compressor Fasteners
3.3
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
NetCol500-A060/A080/A120 NetCol500-A110
Checking Whether the Nitrogen Is Discharged at the Needle Valves of
Outdoor Unit
3.6
Unit: mm
Horizontal Installation
NetCol500-A060 NetCol500-A110

Unit: mm
Vertical Installation
8
Compact Installation
Unit: mm
NetCol500-A060 NetCol500-A110
b. Install the four legs.
a. Remove the straight flanges.
Horizontal installation (Choose One from the Two Installation Scenario)
4.2
NetCol500-A060/A080/A120
Make sure that no shelter is
above the outdoor unit.

9
c. Secure the legs to the concrete base.
Secure the legs to the
concrete base.
NetCol500-A110
Unit: mm
Vertical Installation (Choose One from the Two Installation Scenario)
4.3
NetCol500-A060/A080/A120 Unit: mm
Unit: mm

10
5Welding Refrigerant Pipes
Laying the Engineering Pipe
5.1
Wall
Pipe
Pipe support
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.
2. 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.
3. The inverted trap should be higher than the top copper pipe of the condenser.
4. When the indoor unit is higher than the outdoor unit, the maximum height difference is 8 m. When
the indoor unit is lower than the outdoor unit, the maximum height difference is 30 m.
5. 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.
6. 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.
7. After the pipe in the middle is welded, charge nitrogen into the pipe from one pipe end to clear the
foreign matter inside.
8. 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.
9. 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 valves, other
pipes, thermal insulation foam, power cables, labels, and tags.
Discharging Nitrogen of Indoor Unit
5.2
NetCol8000-A045/A090 Downflow Exhaust nitrogen from the three needle valves.
NetCol8000-A045 Upflow

11
NetCol8000-A060 UpflowNetCol8000-A060/A120 Downflow
NetCol8000-A045/A090
Downflow-Bottom Piping
Welding the Indoor Unit Ports
5.3
NetCol8000-A045
Upflow-Bottom Piping
NetCol8000-A045
NetCol8000-A060/A120
Downflow-Bottom Piping NetCol8000-A060
Upflow-Bottom Piping
(1) Gas pipe
(2) Liquid pipe

12
NetCol8000-A045
Upflow-Side Piping
NetCol8000-A045/A090
Downflow-Side Piping
NetCol8000-A060
Upflow-Side Piping
NetCol8000-A060/A120
Downflow-Side Piping
(1) Gas pipe
(2) Liquid pipe
Discharging Nitrogen at the Outdoor Unit Needle Valves
5.4
Exhaust nitrogen from the three needle valves respectively. Do
not remove the needle valve plug in case of loss or damage.

13
Welding the Outdoor Unit Ports
5.5 Thermal insulation foam
5/8 inch liquid pipe
7/8 inch gas pipe
(Optional) Connecting Low Temperature Component Pipes
5.6
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.
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.
5/8 inch liquid pipe
Thermal
insulation foam
7/8 inch gas pipe

14
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上送风NetCol8000-A045/A090下送风
NetCol8000-A060上送风NetCol8000-A060/A120下送风

15
7Installing Cables
1. The power cables and signal cables should be tied and cased separately.
2. The shielding layer of signal cables must be grounded.
3. 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.
4. The following picture shows the dual power supply modes. In single power supply mode,
only QF1 needs to be connected.
Connecting the Indoor Unit Power Cable
7.1
NetCol8000-A045/A090 Downflow

16
NetCol8000-A045 Upflow
NetCol8000-A060/A120 Downflow

17
1. Outdoor units of different models have different electric control box layout but the same port silk
screen. Ensure that cable labels are consistent with corresponding terminal labels when
connecting cables.
2. The following figure shows the cable routing of NetCol8000-A045 and NetCol8000-A060.
Connect 2U/2V/2W/PE to another outdoor unit if NetCol8000-A090 and NetCol8000-A120 is
configured.
3. The outdoor cables are sun- and water-proofed. It is recommended that tubes be used for
protection.
4. If the outdoor unit is NetCo500-A120, connect the power cables of the two indoor units to the
QF1 and QF3 of the outdoor unit respectively.
5. The outdoor unit must receive power from the indoor unit.
Connecting the Outdoor Unit Power Cable
7.2
NetCol8000-A060 Upflow

18
Connecting the Signal Cable of Outdoor Unit and Indoor Unit
7.3
Perform this operation only for
outdoor units configured with
an intelligent monitoring board.
The outdoor units are
52273539, 52273539-002,
52273541, and 52273541-002.
If the indoor unit is
NetCol8000-A090 or
NetCol8000-A120, connect the
signal cables of outdoor units
to terminals 1, 2, and 3 and
terminals 5, 6, and 7 of X503
respectively.

19
Connecting the Equipotential Bonding Cable
7.4
Equipotential bonding point
(Optional) Connecting a Differential Pressure Sensor
7.5
1. Secure the differential pressure sensor inside the cabinet using two M3 screws.
2. Connect the longer PU hose to the port without the Lo (-) silk screen under the differential
pressure sensor, and route the hose through the top of the cabinet to the supply air pipe
plenum chamber. (There should be two binding points adjacent to the pressure inlet. The
distance between the binding point closer to the pressure inlet and the pressure inlet should
not exceed 25 mm, and the distance between two binding points is within 20–30 mm.)
3. Connect cables to the differential pressure sensor.
4. After powering on the NetCol8000, choose Settings > System Settings > Indoor Fan, and
set Air-side difference pressure sensor type to 0–500 Pa.
NetCol8000-A045 Upflow
NetCol8000-A045/A090 Downflow

20
(Optional) Connecting the Low-Temperature Component Cables
7.6
The figure shows the cable
routing of NetCol8000-A045.
Also connect L/N to another
outdoor unit if NetCol8000-
A090 or NetCol8000-A120 is
configured.
(1) Low-temperature component
Low-temperature component
power cable to outdoor unit
Low-temperature component
power cable from outdoor unit
to indoor unit
NetCol8000-A060 Upflow
NetCol8000-A060/A120 Downflow