Huawei NetCol5000-A050 User manual

1Overview
1
Copyright © Huawei Technologies Co., Ltd. 2020 All rights reserved.
Issue: 05
Code: 31500BLX
Date: 2020-07-08
NetCol5000-A050 In-row Air Cooled
Smart Cooling Product
Quick Guide
Category
Product Model
Dimensions Without
Packing (mm)
(H x W
x D)
Indoor Unit
NetCol5000
-A050
2000 x 600 x
1200
Outdoor Unit
NetCol500
-A060（52273539）
1107 (677) x 1356 (1217) x 1094
NetCol500
-A060
BOM number 52273539
-005:
1107 (655) x 1356 (1217) x 1094
BOM number 52273539
-006:
1156 (703) x 1356 (1217) x 1094
NetCol500
-A080（52273541-005）
1107 (655) x 2186 (2047) x 1094
NetCol500
-A120（52273755-002）
1107 (655) x 1356 (1217) x 2188
Water cooling
Module
NetCol500
-W055
530
x 1510 x 262
The quick guide describes how to install the indoor units, outdoor units, and water cooling modules.
The indoor unit is used with the outdoor unit or water cooled module.

2
Man
-
dator
y
Refrigerant
pipe
Gas pipe requirements: outer diameter of 7/8 inch (22.22 mm) ; thickness of 1.2
mm; operating pressure ≥ 4.5 MPa
Liquid pipe
:
L ≤ 60 m: 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: outer diameter of 3/4 inch (19.05 mm) ; wall thickness of 1.0
mm; operating pressure > 4.5 MPa
Thermal insulation foam: thickness ≥ 9.2 mm
Oil trap and inverted trap
, and refrigerant pipe supports
Water pipe
Humidifier water inlet pipe (optionally configured for the humidifier and the
humidifier hose is provided for the smart cooling product)
•Rigid pipe: G 1/2 inch rigid pipe connector with external thread, rigid pipe (such
as PP-R pipe)
•Hose: G 1/2 inch pagoda connector with external thread, hose (such as EPDM
pipe)
Humidifier water inlet pipe (optionally configured for the humidifier and the
humidifier hose is not provided for the smart cooling product) : (PP
-R and other
pipes) Active connector: G3/4 inch internal thread, rigid pipe, elbow
Drainpipe:
•
Rigid pipe: BSPT 1/2 inch rigid pipe connector with external thread, rigid pipe
(such as PP-R pipe)
•
Hose: BSPT 1/2 inch pagoda connector with external thread, hose (such as
EPDM pipe)
Water cooling module: cooling water supply and return pipes, steel pipes having
G1
-1/2 inch connectors with external threads
Thermal insulation foam: thickness ≥ 9.2 mm
Cable
specificati
-
ons
•
Indoor unit power cable: 5 x 10 mm2 (52274052: 4 x 10mm²)
•
Outdoor unit power cable: 4 x 2.5 mm2
•
Power cable for the water cooling module: 3 x 1.5 mm2
•
(Optional) Power cable of the low-temperature component: 2 x 1.5 mm2
•
(Optional) Signal cable between the indoor and outdoor units: 3 x 1.5 mm2,
Electrical power cable, 300 V, SJTW, 3 x 16 AWG, black (three cores: black,
white, and green), 10 A, shielded outdoor cable, UL
Optio
nal
Cable and
base
Temperature and humidity (T/H) sensor
outside the cabinet and cable,
Determined based on scenarios: indoor unit base, outdoor unit support
or
concrete base,
and water cooling module concrete base
2Onsite Preparations
The shield layer of signal
cable must be grounded.

3
Refrigerant R410A2.1
Do not use inferior refrigerant. Otherwise, Huawei has no responsibility for the damage caused by
the inferior refrigerant.
Refrigerant Authenticity Verification Method:
1. Dial the hotline of the refrigerant producer to confirm its reliability.
2. Put the refrigerant indoor for 24 hours. Then use a thermometer to measure the external
surface temperature of the refrigerant cylinder (figure 1) , and connect a pressure gauge to the
cylinder to measure its internal pressure (figure 2) . Look up the following table for the
saturation pressure that corresponds to the external surface temperature, and calculate the
deviation from the internal pressure. If the deviation is more than 0.2 MPa, the refrigerant is
not in good condition. Replace it.
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
3Checking the Air Pressure
Liquid
pipe
needle
valve
Low-
pressure
needle
valve Discharge
pipe
needle
valve

Refrigerant side needle valve
Cooling water side
needle valve
4
Removing the Pallet
4.1 Removing Transport Fasteners
from the Compressor
4.2
1. Read the related user manual or instructions before installing the NetCol5000-A.
2. The unit in this document is a fully configured NetCol5000-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.
4Installing the Indoor Unit
Level
Leveling a Cabinet
4.3

Combining Cabinets4.4
5
Securing to the Floor or Base
4.5
Sealing plates are not in the fittings bag of
the smart cooling product but supplied by
the smart module or purchased
independently.
NOTE
Installing Sealing Plates to the Front and Rear Doors4.6
5(Optional) Installing the Outdoor Unit
•Protective cardboard for fins must be removed after installation to protect people from injuries.
•The installation methods of installing NetCol500-A060 and NetCol500-A080 outdoor units are
the same. This section describes how to install a NetCol500-A060.
•If the space does not meet the requirements of the recommended layout, you can use any of
the following layouts (applicable only to NetCol500-A060).
Make sure that no shelter is above the outdoor unit.
NOTE

6
Unit: mm
Scenario 1: Horizontal installation top view Scenario 2: Vertical installation top view
a. Remove the straight flanges.
Horizontal Installation
5.1
b. Install the four legs.
c. Secure the legs to the concrete base. Unit: mm

7
Vertical Installation
5.2
Unit: mm
6(Optional) Installing the Water Cooling Module
7Connecting the Refrigerant Pipe
Laying the Engineering Pipe
7.1
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. Whencalculatingthe height difference, the compressor base is regarded as the baseline for the indoor
unit, and the condenser top is regardedas the baseline for the outdoor unit.
3. The inverted trap should be higherthan the top copper pipe of the condenser.
Scenario2: Horizontal concrete base installation
Scenario 3: Stack scenario
A maximum of four layers of water-cooling modules can be stacked. If four layers of water cooling
modules are stacked, the minimum floor height is 3 m.
Secure the water-cooling module using bolts in the fitting bag on four mounting holes.
Scenario 1: Horizontal
installation top view
Installation environment: enclosed indoor environment in which the temperature and humidity can be
controlled within the ranges of 4℃to 45℃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).
Unit: mm

Pipe
Pipe support
Wall
8
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 differenceis 30 m.
5. Whenwelding pipes, ensure that the pipes are dry. You are recommendedto 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, chargenitrogen into the pipe from one pipe end to clear the
foreign matter inside.
8. Do not expose welding positionsto the environment for a long time. Take sealing measuresfor welding
positions. If foreign matter exists at the welding position, rubber it out using non-water alcohol or damp
cloth before the welding.
Discharging Nitrogen
7.2
Separately exhaust nitrogen from the three needle valves. Separately exhaust nitrogen from the
two needle valves for the water cooling module. When exhausting nitrogen, do not remove the
valve plug in case of losing or damaging it.
Liquid pipe
needle
valve
Low-
pressure
needle
valve
Discharge
pipe needle
valve

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.
Welding the Indoor Unit Ports
7.3
Top pipe routing
5/8 inch
liquid pipe
7/8 inch
gas pipe
Thermal
insulation foam
5/8 inch
liquid pipe
7/8 inch
gas pipe Thermal insulation foam
Bottom pipe routing
•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.
Thermal
insulation foam
5/8 inch liquid pipe
7/8 inch gas pipe
Welding the Outdoor Unit Ports
7.4

10
To indoor unit
liquid pipe To indoor unit gas pipe
To outdoor unit gas pipe
To outdoor
unit liquid pipe
(Optional) Welding the Low
Temperature Component Pipes
7.5 Welding the Water Cooling
Module
7.6
5/8 inch
liquid pipe
7/8 inch
gas pipe
8Connecting Water Pipes
(Optional) Connecting the Humidifier Water Inlet Pipe8.1
1. Clean the water inlet engineering pipes to avoid impurities
entering into the humidifier.
2. When routing pipes from the top, do not route the pipes
over servers or other devices to protect them from being
affected by pipe leaks.
3. Wrap each part of the pipes with thermal insulation foam.
4. Use supports to secure pipes.
Connection method
Top pipe routing
Bottom pipe routing
(1) Reserved connector (7) Reserved connector
(2) Rigid pipe conversion
adapter
(8) Active connector
(3) Rigid pipe (9) Rigid pipe
(4) Pagoda connector (10) Elbow
(5) Hose clamp (11) Rigid pipe
(6) Hose

Figure2
•If a humidifier water inlet hose is
delivered with the smart cooling
product, pull the hose out of the
smart cooling product and connect
the hose, as shown in Figure 1. For
details, refer to connection methods
A and B.
•If a humidifier water inlet hose is not
delivered with the smart cooling
product, connect the water pipe to
the reserved port of the smart
cooling product as shown in Figure 2
by referring to connection method C.
Connecting the Drainpipe8.2
Connection method (1) Inner-threaded connector (use the sealant for
screw threads)
(2) Adapter
(3) Rigid pipe
(4) Pagoda connector
(5) Hose clamp
(6) Hose
Top pipe routing Bottom pipe routing
The drainpipes must have gradients
(＞1: 100) , and stagnant water is not
allowed.
In the automatic drainage scenario, you do
not need to perform the first step.
11

Connecting the Water Supply and Return Pipes of the Water Cooling Module
8.3
Connecting the steel pipe
Performing a Leakage Test with Water for the Water Cooling Module
8.4
Manually open the water valve. Inject water to 0.8
MPa and preserve the pressure for 24 hours.
Connect the pressure gauge to the cooling water
side needle valve and measure the pressure
gauge reading. If the reading remains unchanged,
the pipe is not leaking. You can perform the
following operations.
(1) Reserved device port
(2) Steel pipe
9Installing Cables
1. The power cables and signal cables should be tied and cased separately.
2. The shielding layer of signal cable must be grounded.
3. In underfloor 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 recommended upstream switch is C63 or higher.
5. The outdoor unit, indoor unit and Water Cooling Module must receive power from the indoor
unit.
(1) Refrigerant side needle valve
(2) Cooling water side needle valve
12

Connecting the Indoor Unit Power Cable and Equipotential Ground Cable
9.1
Equipotential ground ports Equipotential ground ports
Single power
supply Dual power
supplies
Equipotential ground ports Equipotential ground ports
Single power supply Dual power
supplies
Top cable routing
Bottom cable routing
13

1. Outdoor units of different models have different electric control box layout but the same port silk
screen.
2. The following figure shows the cable routing in bottom cabling mode. In top cabling mode, you
can route cables through the holes shown in the figure.
3. The outdoor cables are sun- and water-proofed. It is recommended that tubes be used for
protection.
4. When the outdoor unit is NetCol500-A120, two indoor units can be connected.
Connecting the Power Cable and the (Optional) Signal Cable Between Indoor
and Outdoor Units
9.2
14
(1) Equipotential ground position
(2) Equipotential bottom cable hole
(3) Equipotential top cable hole
If the indoor unit BOM number is 52274052, connect the indoor units power cable and
equipotential ground cable as shown in the following figure.

15
Power cable hole
Signal cable hole
Outdoor unit power cables
supply on the indoor units
Outdoor unit
power cable
Connecting the Power Cables to the Outdoor Units
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.
Power
cable hole
Outdoor unit
power cable
Outdoor unit power
cables supply on
the indoor units
If the indoor unit BOM number is 52274052, connect the outdoor unit power cable as shown in
the following figure.

16
Signal cables for the indoor units
Signal cable hole
Signal cables for the outdoor units
Power cable hole
(Optional) Connecting the Signal Cable Between Indoor and Outdoor Units
Perform this operation only for outdoor units configured with an intelligent monitoring board. The
outdoor units are 52273539.
Connecting the Low-Temperature Component Power Cable
Low-temperature
component power
cable
Power cable between
indoor and outdoor
units
Signal cable
hole
Power cable hole
Low-temperature component
Low-temperature
component power cables
supply on the Indoor unit
If the outdoor unit is NetCo500-A120, connect the power cables of the two indoor units to the
QF2 and QF4 of the outdoor unit respectively.

17
Connecting the Power Cable and Signal Cable for the Water Cooling Module
Power cable hole
Signal cable hole
Water cooling
module Water cooling
module
Signal cables for the indoor units
Water cooling module
power cables supply
on the Indoor unit
Connecting T/H Sensors Outside Cabinets
9.3
1. Connect the T/H sensor cables.
The T/H sensors in the aisles should be
installed on the door frame of IT cabinets,
and1.5 m (33U) away from the ground. After
the sensor is secured, set the sensor
address according to the following table.
2. Set the DIP switches on the T/H sensors.

(Optional) Connecting the Teamwork Network Cable
9.4
Teamwork CAN networking (CAN Protocol)
In CAN networking, a maximum of 32 smart cooling products can be teamworked. If CAN
networking is required onsite, set Networking mode on the Teamwork Settings screen of all smart
cooling products to CAN network, and set Teamwork CAN resistor enable on the Teamwork
Settings screen of the first and last smart cooling products to Yes.
Teamwork FE networking (MAC_CAN Protocol)
In FE networking, a maximum of 20 smart cooling products can be teamworked. If FE networking is
required onsite, set Networking mode on the Teamwork Settings screen of all smart cooling
products to MAC_CAN network.
Connect one end of the monitoring network cable (standard network cable) to the FE_1 port on the
main control module, and connect the other end to the monitoring device.
Connect one end of the monitoring network cable (standard network cable) to the COM/FE port on
the main control module, and connect the other end to the monitoring device.
Smart Module FE Monitoring (Modbus-TCP Protocol)
NetEco Monitoring (Modbus-TCP Protocol/ Modbus-RTU Protocol)
•Connecting network cables for NetEco FE monitoring (Modbus-TCP protocol)
18

19
Third-Party NMS Monitoring (SNMP/Modbus-RTU Protocol)
When the host monitors the smart cooling product through a third-party NMS, connect the
monitoring network cable based on whether the smart cooling product is cascaded.
•In the case of non-cascading, connect the COM port on each smart cooling product to the
customer's monitoring system. After powering on the device, set the "RS485 monitoring grouping"
of the each smart cooling product to "Enable". Setting path: Settings > Comm Settings > Modbus
Settings.
•Connecting network cables for NetEco COM monitoring (Modbus-RTU protocol)
•In the case of cascading, connect the COM/FE port on the last smart cooling product in each
monitoring group to the monitoring device. After powering on the device, set the "RS485
monitoring grouping" of the last smart cooling product in each monitoring group to "Enable".
Setting path: Settings > Comm Settings > Modbus Settings.

20
10Post-Installation Check
Item
Content
Result
Refrigerant
pipe
Ports are connected properly. The pipeline has oil traps, inverted U
-shaped
traps, gradients (for the refrigerant pipes) , and pipe supports. Pipes are
securely connected. All pipes are wrapped with thermal insulation foam, and
the insulation foam is intact. The needle valve plug is secured (torque of
0.45
±0.05 N•m) , and valve bonnet is tightened. The pipes have no sharp
bends.
□Passed
□
Failed
Waterway
Water pipe joints have been sealed.
The drainpipe is securely connected.
□Passed
□
Failed
Electricity
Cables are not damaged or over
-bent. The power cables and outdoor unit
(water cooling module) , The signal cables and outdoor unit (including smart
cooling product monitoring board
) or water cooling module, water sensor,
the teamwork cable, and the T/H sensor cable are connected as required.
The rated specifications of the upstream switch meet the maximum current
requirement. All cable connectors
are secured.
Indoor and outdoor units are
properly grounded.
□Passed
□
Failed
Cabinet
The cabinet is installed properly, without any tilt.
The cabinet should be
secured. The foreign matter inside the cabinet such as cable ties and cable
cuts is cleaned up.
□
Passed
□
Failed
Compressor
The transport fasteners of the compressor are removed. The bolts on the
compressor are tightened.
□Passed
□
Failed
Outdoor unit
The fan blades do not interfere
and protective cardboard for fins are
removed. Bonnets of needle valves and water
-proof connectors are
tightened.
Cables are protected by tubes and the cable outlet faces
downward. Glue is applied to the waterproof connector when the outdoor
unit is placed vertically and the waterproof connector faces upward.
□Passed
□
Failed
Water valve
actuator
The actuator manual button is
reset (ejected state) .
□Passed
□
Failed
11 Leak Checking, Vacuuming, and Precharging Refrigerant
Charge 3.0 MPa nitrogen and preserve the system for 24 hours. If the ambient
temperatures before and after the preservation are similar, the system pressure should not
drop. If leaks occur after the preservation, check them along the pipe, especially at the
welding positions, needle valve, and angle valve.
The vacuuming time should be 80 minutes at least and the final pressure (absolute pressure)
should be 60 Pa at most. When the pressure stops dropping, pump for another 10 minutes.
After the vacuumization, close all the vacuum pump and valves. Preserve the system for
another 10 minutes and the pressure (absolute pressure) should be 90 Pa at most. If the
pressure gauge cannot be precise at 60 Pa, ensure that the pressure is displayed at the
minimum scale. Extend the preservation time to one hour. Then check whether the pressure
displayed on the pressure gauge increases.
Leak Checking
11.1
Vacuuming
11.2