NetCol8000-A(045, 055, 060, 090, 120) In-room Air Cooled Smart Cooling Product Quick Guide

NetCol8000-A(045, 055, 060, 090, 120) In-room
Air Cooled Smart Cooling Product
Quick Guide


Issue: 10
Part Number: 31500BLY
Date: 2025-08-05


HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
• Before installing the equipment, read the product documentation carefully to get familiar
with product information and safety precautions. Equipment damage caused by failure to
abide by the storage, transportation, installation, and operation guidelines specified in the
product documentation is not covered by the product warranty. You can log in to the technical
website to view product documentation and safety precautions.
• The information in this document is subject to change without notice due to version upgrade or
other reasons. Every effort has been made in the preparation of this document to ensure accuracy
of the contents, but all statements, information, and recommendations in this document do not
constitute a warranty of any kind, express or implied.
• Only qualified personnel are allowed to perform operations on the equipment. Operation
personnel shall understand the system, its working principles, and relevant national/regional
standards.
• Wear dedicated personal protective equipment during operations. Use dedicated insulated tools
during electrical operations.
1 Product Overview
Dimensions Without Packing Optional
Item Product Model
H1 (H2) x W x D1 (D2) (mm) Component
NetCol8000-A045D 2000 x 900 x 900 Heater,
NetCol8000-A045U 2000 x 900 x 900 humidifier,
micro
NetCol8000-A055D 2000 x 900 x 1000 differential
Indoor NetCol8000-A060D 2000 x 1100 x 1000 pressure
unit sensor, water
NetCol8000-A060U 2000 x 1100 x 1000
sensor,
NetCol8000-A090D 2000 x 1800 x 1000 temperature
and humidity
NetCol8000-A120D 2000 x 2200 x 1000 (T/H) sensor
NetCol500-A060 (52273539,
1107 (677) x 1094 x 1356 (1217)
52273539-007) ①
NetCol500-A060 (52273539-005,
1107 (655) x 1094 x 1356 (1217)
52273539-008) ①
①
NetCol500-A060 (52273539-006) 1156 (703) x 1094 x 1356 (1217) Low
Outdoor
NetCol500-A080 (52273541, temperature
unit ① 1107 (677) x 1094 x 2186 (2047)
52273541-008) component
NetCol500-A080 (52273541-005,
1107 (655) x 1094 x 2186 (2047)
52273541-009) ①
NetCol500-A120 1107 (655) x 2189 x 1356 (1217)
NetCol500-A110 1770 x 1100 x 2250
Water-
cooled NetCol500-W055 530 x 1510 x 287 None
module
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 (water-cooled module)
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.

Copyright © Huawei Digital Power Technologies Co., Ltd. 2025.
1 All rights reserved.
Water-cooled module


2 Onsite Preparation
Item Description Type
This type of materials is delivered
Standard material with the unit and can be obtained Materials in the packing list
from the fittings bag.
Customers can purchase this type Refrigerant, refrigerant oil, pipe
Auxiliary material of materials from the supplier or component, power cable, and
other vendors. communications cable
Customers can purchase this type T/H sensor, micro differential
Optional material of materials from the supplier pressure sensor, water sensor, and
based on application scenarios. smoke sensor
Drainpipe, humidifier water inlet
Engineering procurement Customers need to purchase this
pipe, pipe support, and
material type of materials by themselves.
equipotential ground cable


• 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.

2
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
Refrigerant 60 m < L ≤ 100 m:
pipes 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
• 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 2.5 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 equipped with a temperature
control intelligent monitoring board, that is, the air cooled outdoor unit and
Recommended
water-cooled module: 52273539, 52273541.)
cables
• Equipotential ground cable: 6 mm²outdoor copper cable
• (Optional) T/H sensor cable, teamwork control and monitoring
communications cables: shielded network cable of Cat 5e or higher
specifications


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.

• Rigid pipe connection: G 3/4 inch rigid pipe connector with internal threads,
(Optional)
rigid pipe (such as PP-R pipe)
Humidifier
• Hose connection: G 3/4 inch pagoda connector with internal threads, hose
water inlet pipe
(such as EPDM pipe)
• Rigid pipe connection: G 3/4 inch rigid pipe connector with external threads,
rigid pipe (such as PP-R pipe)
Drainpipe • Hose connection: G 3/4 inch pagoda connector with external threads, hose
(such as EPDM pipe)
• Thermal insulation foam: ≥ 13 mm thick
Indoor unit base (mandatory for the downflow model), outdoor unit support or
Base
outdoor unit concrete base (depending on the scenario)
Low
temperature If a low temperature component is configured, an additional 2 x 1.5 mm2
component power cable is required.
cable

3
2.1 Refrigerant R410A


Use qualified refrigerant. The Company 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 R410A Saturation Pressures and Temperatures
Saturation Saturation Saturation
Temperature Temperature Temperature
Pressure Pressure Pressure
(ºC ) (ºC ) (ºC )
(MPa) (MPa) (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
2.2 Oil Trap and Inverted Trap (Unit: mm)


7/8 inch oil trap 1 inch oil trap


1 inch gas pipe 7/8 inch gas pipe 3/4 inch liquid 5/8 inch liquid
inverted trap inverted trap pipe inverted trap pipe inverted trap


3 Installing 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.
Checking for Nitrogen Pressure at the Needle Valves of the Indoor
3.1 Unit

1. If any needle valve bonnet is missing, contact technical support.
2. If they exist, remove each valve bonnet and use it to press the valve plugs in turn. If gas
flows out, the system is normal. If no gas flows out, contact technical support.


5
The figure uses a two-system model as an example. For a single-system model, you need to
perform operations on the left system.

NetCol8000-A045/A055/A090 Downflow NetCol8000-A045 Upflow

Low-pressure
needle valve
Discharge
Discharge pipe Liquid pipe Low-pressure needle valve
pipe
needle valve needle valve
needle valve


Liquid pipe
needle valve
Liquid pipe Discharge
needle valve pipe
needle valve


NetCol8000-A060/120 Downflow NetCol8000-A060 Upflow

Low-pressure Low-pressure needle valve
needle valve
Discharge pipe
needle valve


Exhaust
Liquid pipe
pipe
needle valve
needle
valve
Exhaust
pipe
Liquid pipe needle
needle valve
Liquid pipe valve
needle valve


6
3.2 Removing the Pallet 3.3 Removing Compressor Fasteners


3.4 Securing to the Floor or Base


When securing an indoor unit, install shock absorption pads between the mounting points of the
indoor unit and the base. The specifications of shock absorption pads are as follows:
• Material: EPDM
• Thickness: 5 mm
• Color: black
• Dimensions: 70 mm x 70 mm. Install shock absorption pads (70 mm x 150 mm) at the two
mounting points in the middle of the NetCol8000-A(090, 120).


7
3.5 Lowering a Fan (Applicable to Downflow Units)
1. Remove the six screws 2. Rotate the fan upward by 30 degrees, and pull the
and then the beam. rotating shaft of the fan to the outermost side.


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.

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.

4 Installing 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
4.1 Installation Scenarios

Horizontal Installation (Top View)

Unit: mm


NetCol500-A060 NetCol500-A110

Vertical Installation (Top View)

Unit: mm

• 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
NetCol500-A80 component 600–2000 mm
away from the outdoor unit.

Compact Installation (Top View)

Unit: mm


NetCol500-A060 NetCol500-A110

9
4.2 Checking for Air Pressure at Needle Valves

NetCol500-A060/A080/A120 NetCol500-A110


1. If any valve bonnet is missing, contact technical support.
2. Connect the rubber hose to the pressure gauge, and tighten all pressure gauge valves.
3. Remove the needle valve bonnet, and connect the other end of the hose to the needle valve.
4. If the pressure displayed on the pressure gauge is greater than or equal to 0.2 MPa, the unit
is in good condition.
5. If the pressure gauge reading is less than 0.2 MPa, pipes have leakage points. Contact
technical support.
4.3 Horizontal Installation (Choose Either Horizontal or
Vertical Installation)

When securing an outdoor unit, install shock absorption pads between the mounting points of the
outdoor unit and the base. The specifications of shock absorption pads are as follows:
• Material: EPDM
• Thickness: 5 mm
• Color: black
• Dimensions: 150 mm x 150 mm (NetCol500-A060/A080/A120); 70 mm x 70 mm (NetCol500-
A110)

NetCol500-A060/A080/A120
a. Remove the corner fittings. b. Install the four legs.


The strength level of the concrete platforms must be equal to or greater than C20.

10
c. Secure the legs to the concrete platforms.


Concrete platform dimensions (unit: mm)

Block Width Block Depth Block Height Center Center
Model
(W1) (D1) (H) Distance (W2) 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

NetCol500-A110


Securing the legs to the concrete
platforms


The strength level of the concrete platforms must be equal to or greater than C20.

11
Concrete platform dimensions (unit: mm)

Block Width Block Depth Block Center Distance Center
Model
(W1) (D1) Height (H) (W2) Distance (D2)
NetCol500-A110 W1 ≥ 250 D1 ≥ 250 150–250 1035 1076

4.4 Vertical Installation (Choose Either Horizontal or Vertical Installation)

NetCol500-A060/A080/A120


The strength level of the concrete platforms must be equal to or greater than C20.

Concrete platform dimensions (unit: mm)

Block Width Block Block Center
Model E
(W1) Depth (D) Height (H) Distance (W2)
NetCol500-A060 (52273539,
52273539-005, 52273539-007, W1 ≥ 300 D ≥ 500 150–250 1150 1037
52273539-008)
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


12
Interface dimensions (unit: mm)
Model A B C D E F
NetCol500-A060 (52273539, 52273539-005,
1287 1257 387 478 1037 1126
52273539-007, 52273539-008)
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


13
5 Installing a Water-Cooled Module
5.1 Installation Requirements
Installation Requirements

Unit: mm


5.2 Checking for Air Pressure at Needle Valves
Needle valve on the
refrigerant side


Needle valve on the
cooling water side

5.3 Installing a Water-Cooled Module
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
a module at the mounting holes (4 PCS).


14
6 Connecting Refrigerant Pipes
6.1 Laying Engineering Pipes

• 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 (if there are three or more oil traps, it is recommended that an oil trap
be installed every 5 m).
• 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.

6.2 Installation Requirements for Inverted U-shaped Traps and Oil Traps
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
(1) Inverted U-shaped traps (2) Oil traps (3) Tilted gas pipe (4) Tilted liquid pipe


Outdoor unit placed horizontally Outdoor unit placed vertically

NetCol500-A110


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.

(1) Inverted U-shaped trap (2) Oil traps (3) Tilted gas pipe (4) Tilted liquid pipe


Side pipe routing Bottom pipe routing

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.

6.3 Pipe Drainage

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.

6.4 Exhausting Nitrogen from the Following Needle Valves of the Indoor
Unit
The figure uses a two-system model as an example. For a single-system model, you need to
perform operations on the left system.
NetCol8000-A045/A055/A090 Downflow NetCol8000-A045 Upflow


NetCol8000-A060/A120 Downflow NetCol8000-A060 Upflow


17
6.5 Welding the Indoor Unit Ports

The figure uses a two-system model as an example. For a single-system model, you need to
perform operations on the left system.

NetCol8000-A045/A055/A090 NetCol8000-A045
Downflow-Bottom Piping Upflow-Bottom Piping


(1) Gas pipe (2) Liquid pipe


NetCol8000-A060/A120 NetCol8000-A060
Downflow-Bottom Piping Upflow-Bottom Piping


(1) Gas pipe (2) Liquid pipe

18
NetCol8000-A045/A055/A090 NetCol8000-A045
Downflow-Side Piping Upflow-Side Piping


(1) Gas pipe (2) Liquid pipe


NetCol8000-A060/A120 NetCol8000-A060
Downflow-Side Piping Upflow-Side Piping


(1) Gas pipe (2) Liquid pipe


19
6.6 Exhausting Nitrogen at the Outdoor Unit Needle Valves


Do not remove the needle valve plugs to prevent loss or damage.

NetCol500-A060/A080/A120 NetCol500-A110


Water-Cooled Module


6.7 Welding the Ports of the Air Cooled Outdoor Unit
Thermal insulation foam Thermal
insulation
foam


5/8 inch liquid pipe
7/8 inch gas pipe 7/8 inch gas pipe 5/8 inch liquid pipe

20
6.8 (Optional) Welding a Low Temperature Component
(1) To indoor (2) To indoor
unit liquid pipe unit gas pipe
(3) To outdoor (4) To outdoor
unit gas pipe unit liquid pipe


• When the outdoor unit is side-
installed, the gas pipe is in the
upper part, and the liquid pipe is
in the lower part.
• A reducing pipe is required when
welding a 3/4 inch copper pipe
to a 5/8 inch connector.

6.9 Welding a Water-Cooled Module


7/8 inch gas pipe
5/8 inch liquid pipe
7 Connecting Water Pipes
7.1 Connecting a Humidifier Water Inlet Pipe


G 3/4 inch reserved connector
with external screw threads

G 3/4 inch adapter with
internal screw threads①

Matched with the adapter, 0.7 MPa
pressure resistance

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 a union is used.
21
7.2 Connecting a Drainpipe
Connection method (1) Connector with
internal screw threads (4) Pagoda connector
(thread sealant required)
(2) Adapter (5) Hose clamp
(3) Rigid pipe (6) Hose

The external drainpipe must have a downward
gradient (> 1:100) along the drainage direction.
Significant upward trend and stagnant water is
not allowed along the pipe.

NetCol8000-A045/A055/A090 Downflow NetCol8000-A045 Upflow


NetCol8000-A060/A120 Downflow NetCol8000-A060 Upflow


22
7.3 Connecting Water Inlet and Outlet Pipes to the Water-Cooled Module

Steel Pipe Connection


(1) Reserved port
(2) Steel pipe

(1) Needle valve on the refrigerant side
(2) Needle valve on the cooling water side
8 Installing 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. Shielded cables cannot be used as power cables for outdoor units.
6. The following figures show the dual power supply modes. In single power supply mode, only
QF1 needs to be connected.

8.1 Connecting the Equipotential Bonding Cable


Equipotential bonding point

23
8.2 Connecting the Indoor Unit Power Cable

NetCol8000-A045/A055/A090 Downflow


QF1 QF2


NetCol8000-A045 Upflow


QF1 QF2


24
NetCol8000-A060/A120 Downflow


NetCol8000-A060 Upflow

QF1 QF2


25
Connecting the Power Cable to an Outdoor Unit or
8.3
Water-Cooled Module


1. Outdoor units of different models have different electric control box layouts 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 or
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 outdoor unit power cables to the
QF1 and QF3 of the outdoor unit respectively.
5. The outdoor unit or water-cooled module must be powered by the indoor unit.

Connecting the Power Cable to an Outdoor Unit


NetCol500-A060 NetCol8000-A045 NetCol500-A110 NetCol8000-A060


26
Connecting the Power Cable to a Water-Cooled Module


(Optional) Connecting the Signal Cable Between Outdoor
8.4
and Indoor Units
Connecting the Signal Cable Between the Outdoor and Indoor Units


(A) Core wire (B) Insulation layer
(C) Shield layer (D) Jacket

• The figure uses the NetCol8000-A045
as an example. If the indoor unit is
NetCol8000-A090 or NetCol8000-
A120, connect the outdoor unit signal
cable to X503 terminals 1, 2, and 3, or
5, 6, and 7 of the indoor unit.
• Air-cooled outdoor unit: The shield
layer must be routed through the
buckle and crimped properly.
• Water-cooled module and indoor
unit: The shield layer must be reliably
connected to the nearby PE point.

27
Connecting the Signal Cable to a Water-Cooled Module


(A) Core wire (B) Insulation layer
(C) Shield layer (D) Jacket


8.5 (Optional) Connecting a Micro Differential Pressure Sensor
1. Secure the differential pressure sensor inside the cabinet using two M3 screws.
2. Connect the 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.


28
NetCol8000-A045/A055/A090 Downflow NetCol8000-A045 Upflow


NetCol8000-A060/A120 Downflow NetCol8000-A060 Upflow


29
8.6 (Optional) Connecting the Low Temperature Component Cables

Low temperature component
power cable from the outdoor
unit to the indoor unit

Low temperature component
power cable to the outdoor unit


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

(Optional) Connecting the (Optional) Connecting the
8.7 8.8
Water Sensor T/H Sensors Outside Cabinets
1. Connect the T/H sensor cables.

The T/H sensors in the aisles should be
installed on the door frames of server
cabinets, and 1.5 m (33 U) away from
the ground. After the sensors are secured,
set the sensor addresses according to the
following table.

T/H sensor
outside the
cabinet
Water sensor cable


30
2. Set the DIP switches on the T/H sensors.

DIP Switch ID
Name Address
1 2 3 4 5 6

Cold aisle 1 temp/humid 11 ON ON OFF ON OFF OFF

Cold aisle 2 temp/humid 12 OFF OFF ON ON OFF OFF

Cold aisle 3 temp/humid 13 ON OFF ON ON OFF OFF

Cold aisle 4 temp/humid 14 OFF ON ON ON OFF OFF

Cold aisle 5 temp/humid 15 ON ON ON ON OFF OFF

Hot aisle 1 temp/humid 21 ON OFF ON OFF ON OFF

Hot aisle 2 temp/humid 22 OFF ON ON OFF ON OFF

Hot aisle 3 temp/humid 23 ON ON ON OFF ON OFF

Hot aisle 4 temp/humid 24 OFF OFF OFF ON ON OFF

Hot aisle 5 temp/humid 25 ON OFF OFF ON ON OFF

8.9 (Optional) Connecting Teamwork and Monitoring Network Cables

No. Name Description
1 Running indicator -
2 Alarm indicator -
3 FE_1 port FE teamwork control
CAN teamwork and RS485
4 CAN_IN port
monitoring cascading
5 RS485/12V port Connecting to T/H sensors
Connecting to a WiFi
6 USB port
module or USB flash drive
Button for restoring
7 SW button
factory settings
8 FE_2 port FE teamwork control
CAN teamwork and RS485
9 CAN_OUT port
monitoring cascading
Connecting to a
10 COM/FE port monitoring
communications cable
11 DP port Connecting to the display


31
1. Prepare network cables.

COM/FE Port
FE_1 and CAN_IN and RS485/12V
Pin Color (FE
CAN_OUT Port
FE_2 Monitoring)
White-and-
1 RS485 T+ (+) RS485 HT+ FE TX+
orange FE TX+
2 Orange FE TX– RS485 T– (–) RS485 HT– FE TX–
White-and-
3 - 12V FE RX+
green FE RX+
4 Blue - RS485 R+ RS485 HT+ RS485+
White-and-
5 RS485 R– RS485 HT– RS485–
blue -
6 Green FE RX– - - FE RX–
White-and-
7 CANH - -
brown -
8 Brown - CANL GND -

Pin Color COM/FE Port (RS485 Monitoring)
4 Blue RS485+
5 White-and-blue RS485–
2. Connect teamwork and monitoring communications cables.


The teamwork modes include FE teamwork and CAN teamwork. FE teamwork is recommended.
FE teamwork support point-to-point communication, long-distance cascading, and group
upgrade. If the number of units in a group is greater than 16, FE teamwork needs to be
implemented by group. The total length of CAN teamwork cables should be less than or equal
to 310 m. Otherwise, the communication quality will be affected.

FE Teamwork + FE Monitoring
Networking Teamwork Monitoring
Protocol MAC_CAN Modbus-TCP/SNMP
A teamwork network supports a maximum of 16
Description -
units.

• If the Modbus-TCP/SNMP protocol is used, customers can purchase the NetEco (a LAN
switch is required) or a third-party NMS as the monitoring system.
• If the number of units in a group is greater than 16, FE teamwork needs to be implemented
by group. For example, if the number of units under teamwork is 18, they can be divided
into two groups, for example, 9+9, 16+2, or 10+8.


32
FE Teamwork + RS485 Monitoring
Networking Teamwork Monitoring
Protocol MAC_CAN Modbus-TCP
It takes 3 x n seconds to collect data from n units. If the
time required for the host to collect data from all units
does not meet the performance requirements, group the
units.
• If units are not grouped (n = 1), set RS485
A teamwork network
monitoring grouping to Enable on the Modbus
Description supports a maximum of
Settings screen for each unit.
16 units.
• If units are grouped (n > 1; recommended: n ≤ 4), set
RS485 monitoring grouping to Enable on the
Modbus Settings screen for the unit with the COM/FE
port connected. Retain the default setting (Disable)
for other units.

• Connect the COM/FE port on the main control module of the last unit in each group to the
RS485 port on the host.
• Customers can purchase the NetEco (an ECC800-Pro is required) or a third-party NMS as the
monitoring system.
• If the number of units in a group is greater than 16, FE teamwork needs to be implemented
by group. For example, if the number of units under teamwork is 18, they can be divided into
two groups, for example, 9+9, 16+2, or 10+8.


33
If the length of a network cable in the FE teamwork is greater than or equal to 100 m, use the
group-based ring networking mode.
1. Connecting units with odd numbers: Connect the FE_1 port of the unit with an odd
number to the FE_2 port of the unit with the next odd number.
2. Connecting units with even numbers: Connect the FE_2 port of the unit with an even
number to the FE_1 port of the next unit with an even number.
3. Connect FE_2 of No. 1 unit and FE_1 of No. 2 unit, and connect the remaining FE_1 and
FE_2 of the last two units.


CAN Teamwork + FE Monitoring

Networking Teamwork Monitoring
Protocol CAN Modbus-TCP/SNMP
One teamwork network supports a maximum of 32
units. On the Teamwork Settings screen of the
Description -
display modules of the first and last units, set
Enable teamwork CAN resistor to Yes.


If the Modbus-TCP/SNMP protocol is used, customers can purchase the NetEco (a LAN switch is
required) or a third-party NMS as the monitoring system.


34
CAN Teamwork + RS485 Monitoring
Networking Teamwork Monitoring
Protocol CAN Modbus-TCP
It takes 3 x n seconds to collect data from n units. If the
time required for the host to collect data from all units
One teamwork network
does not meet the performance requirements, group the
supports a maximum of
units.
32 units. On the
• If units are not grouped (n = 1), set RS485
Teamwork Settings
monitoring grouping to Enable on the Modbus
Description screen of the display
Settings screen for each unit.
modules of the first and
• If units are grouped (n > 1; recommended: n ≤ 4), set
last units, set Enable
RS485 monitoring grouping to Enable on the
teamwork CAN resistor
Modbus Settings screen for the unit with the COM/FE
to Yes.
port connected. Retain the default setting (Disable)
for other units.


• Connect the COM/FE port on the main control module of the last unit in each group to the
RS485 port on the host.
• Customers can purchase the NetEco (an ECC800-Pro is required) or a third-party NMS as the
monitoring system.


35
8.10 (Optional) Installing the Cap (Applicable to Upflow Units)


• It takes two persons to install the cap using a 2 m step ladder.
• Before installing the cap, attach the thermal insulation foam in the accessories to the top
beam of the smart cooling product, and ensure that the reserved holes in the thermal
insulation foam are aligned with the holes in the beam. Check that the cap is intact and free
from scratches, that the sheet metal is not bent, and that the screws are secure.
• Before installing the cap, reserve space on the top of the indoor unit. The height of the
reserved space must be greater than that of the cap.

Cap dimensions

Indoor Unit Dimensions
Indoor Unit Model Cap Dimensions (H x W x D) (mm)
(H x W x D) (mm)
NetCol8000-A045U 2000 x 900 x 900 600 x 900 x 900
NetCol8000-A060U 2000 x 1100 x 1000 600 x 1100 x 1000

1. Remove the cap front panel using a 2. Secure the cap using M5 tapping screws.
Phillips screwdriver. Place the cap on the • 900 mm wide indoor unit: 2 PCS
top of the unit. respectively on the front and the
rear, and 3 PCS respectively on the
left and right
• 1100 mm wide indoor unit: 4 PCS
respectively on the front and the
rear, and 3 PCS respectively on the
left and right


3. Secure the cap front panel to the
frame, and adjust the angle of the
front panel blade.


36
9 Leak Checking, Vacuuming, and Precharging Refrigerant
9.1 Leak Checking
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.
9.2 Vacuuming
The vacuuming time should be 80 minutes at least and the final pressure (absolute pressure)
should be 160 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 260 Pa at most. If the
minimum reading of the pressure gauge is greater than 160 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.

9.3 Precharging Refrigerant


If the R410A refrigerant is provided by the Company, put the refrigerant steel vessel upside down
when charging in the refrigerant. If the refrigerant is not provided by the Company, check with the
refrigerant provider whether the steel vessel has a siphon. If the vessel has a siphon, put it upside
up when charging in refrigerant. If the vessel has no siphon, put it upside down when charging in
refrigerant. These measures ensure that the refrigerant is charged in the liquid form.

1. Remove the vacuum pump from the vacuuming equipment, and replace the vacuum pump
with a refrigerant steel vessel.
2. Partially open the refrigerant steel vessel valve and rubber tube nut. Tighten the nut when
you feel cold air coming out from the nut.
3. Put the refrigerant steel vessel upside down on an electric balance. Clear the reading on the
balance.
4. Open the pressure gauge valves and the refrigerant steel vessel valve to charge refrigerant.
5. The amount of refrigerant charged must be equal to or more than half of the total charge
amount calculated and equal to or less than the total charge amount. Charge the remaining
refrigerant during power-on commissioning.
6. After refrigerant charging, close pressure gauge valves, and the refrigerant steel vessel valve.


• If one NetCol8000-A090D is used with two NetCol500-A060s and the L is 80 m, the 9.4 +
(80 – 10) x 0.28 = 29 kg needs to be filled in each compressor system. In total, the
NetCol8000-A090D needs charging of 58 kg R410A refrigerant.
• If one NetCol8000-A090D is used with one NetCol500-A120 and the L is 80 m, the 9.4 + (80
– 10) x 0.28 = 29 kg needs to be filled in each compressor system. In total, the NetCol8000-
A090D needs charging of 58 kg R410A refrigerant.


37
Refrigerant Charge Amount (L) (L is actual
length of the one-way pipe) (kg)
Indoor Unit Outdoor Unit
0 m < L
10 m < L ≤ 60 m 60 m < L ≤ 100 m
≤ 10 m
NetCol500-A060/
9.4 + (L – 10) x 9.4 + (L – 10) x
NetCol500-A120 system 1/ 9.4
0.21 0.28
NetCol8000- NetCol500-A120 system 2
A045D
13.4 + (L – 10) x 13.4 + (L – 10) x
NetCol500-A080 13.4
0.21 0.28
NetCol8000-
A045D (including NetCol500-A060/
32.9 + (L – 10) x 32.9 + (L – 10) x
a low NetCol500-A120 system 1/ 32.9
0.21 0.28
temperature NetCol500-A120 system 2
component)
NetCol500-A060/
8.8 + (L – 10) x 8.8 + (L – 10) x
NetCol500-A120 system 1/ 8.8
0.21 0.28
NetCol500-A120 system 2
NetCol8000-
12.8 + (L – 10) x 12.8 + (L – 10) x
A045U NetCol500-A080 12.8
0.21 0.28
9.6 + (L – 10) x
NetCol500-W055 9.6 -
0.19
NetCol8000-
A045U (including NetCol500-A060/
32.3 + (L – 10) x 32.3 + (L – 10) x
a low NetCol500-A12 system 1/ 32.3
0.21 0.28
temperature NetCol500-A120 system 2
component)
NetCol500-A060/ 9.4 + (L – 10) x 9.4 + (L – 10) x
9.4
NetCol8000- NetCol500-A120 system 1/ 0.21 0.28
A090D system 1 13.4 + (L – 10) x 13.4 + (L – 10) x
NetCol500-A080 13.4
0.21 0.28
NetCol500-A060/ 9.4 + (L – 10) x 9.4 + (L – 10) x
9.4
NetCol8000- NetCol500-A120 system 2 0.21 0.28
A090D system 2 13.4 + (L – 10) x 13.4 + (L – 10) x
NetCol500-A080 13.4
0.21 0.28
NetCol8000-
A090D system 1
NetCol500-A060/ 32.9 + (L – 10) x 32.9 + (L – 10) x
(including a low 32.9
NetCol500-A120 system 1/ 0.21 0.28
temperature
component)
NetCol8000-
A090D system 2
NetCol500-A060/ 32.9 + (L – 10) x 32.9 + (L – 10) x
(including a low 32.9
NetCol500-A120 system 2 0.21 0.28
temperature
component)
16.5 + (L – 10) x 16.5 + (L – 10) x
NetCol500-A080 16.5
NetCol8000- 0.23 0.31
A055D 23 + (L – 10) x
NetCol500-A110 23 23 + (L – 10) x 0.23
0.31

38
Refrigerant Charge Amount (L) (L is total one-
way pipe length) (kg)
Indoor Unit Outdoor Unit
0 m < L
10 m < L ≤ 60 m 60 m < L ≤ 100 m
≤ 10 m

NetCol8000-
A055D (including
43 + (L – 10) x
a low NetCol500-A080 43 43 + (L – 10) x 0.23
0.31
temperature
component)

15.5 + (L – 10) x 15.5 + (L – 10) x
NetCol500-A080 15.5
NetCol8000- 0.23 0.31
A060D 22 + (L – 10) x
NetCol500-A110 22 22 + (L – 10) x 0.23
0.31

NetCol8000-
A060D (including
42 + (L – 10) x
a low NetCol500-A080 42 42 + (L – 10) x 0.23
0.31
temperature
component)

15.5 + (L – 10) x 15.5 + (L – 10) x
NetCol500-A080 15.5
NetCol8000- 0.23 0.31
A060U 22 + (L – 10) x
NetCol500-A110 22 22 + (L – 10) x 0.23
0.31

NetCol8000-
A060U (including
42 + (L – 10) x
a low NetCol500-A080 42 42 + (L – 10) x 0.23
0.31
temperature
component)

15.5 + (L – 10) x 15.5 + (L – 10) x
NetCol500-A080 15.5
NetCol8000- 0.23 0.31
A120D system 1 22 + (L – 10) x
NetCol500-A110 22 22 + (L – 10) x 0.23
0.31

15.5 + (L – 10) x 15.5 + (L – 10) x
NetCol500-A080 15.5
NetCol8000- 0.23 0.31
A120D system 2 22 + (L – 10) x
NetCol500-A110 22 22 + (L – 10) x 0.23
0.31

NetCol8000-
A120D system 1
42 + (L – 10) x
(including a low NetCol500-A080 42 42 + (L – 10) x 0.23
0.31
temperature
component)

NetCol8000-
A120D system 2
42 + (L – 10) x
(including a low NetCol500-A080 42 42 + (L – 10) x 0.23
0.31
temperature
component)

39
Scenario Without a Low Temperature Component (NetCol8000-A045/A055/A090
Downflow)

• On the left is the low-pressure pressure gauge, and on the right is the high-pressure
pressure gauge.
• The needle valve specification is 7/16-20UNF.

Vacuum pump

1. Leak checking
2. Vacuuming
3. Precharging refrigerant Low-pressure needle valve


Reducing valve
Refrigerant cylinder

Exhaust
pipe needle
Electronic scale valve


Nut
Discharge pipe
Nitrogen cylinder needle valve

The figure uses a two-system model as an example. For a single-system model, you need to
perform leakage test with nitrogen, vacuumization, and refrigerant precharging on the left system.
Scenario Without a Low Temperature Component (NetCol8000-A060/A120 Downflow)

Vacuum
pump
1. Leak checking
2. Vacuuming
3. Precharging refrigerant


Low-pressure needle valve

Reducing valve

Refrigerant cylinder

Electronic Exhaust
scale pipe
needle
valve


Nut
Nitrogen Discharge pipe
cylinder needle valve
40
Scenario with a Low Temperature Component
(NetCol8000-A045/A055/A090 Downflow)

Vacuum 1. Leak checking
pump 2. Vacuuming
3. Precharging refrigerant

Low-pressure needle valve


Reducing valve

Refrigerant
cylinder
Liquid
pipe Discharge pipe
Electronic
needle
scale needle valve
valve


Discharge
pipe
Liquid pipe needle valve
needle
Nitrogen cylinder valve
Nut

The figure uses a two-system model as an example. For a single-system model, you need to
perform leakage test with nitrogen, vacuumization, and refrigerant precharging on the left system.
Scenario with a Low Temperature Component (NetCol8000-A060/A120 Downflow)

Vacuum pump 1. Leak checking
2. Vacuuming
3. Precharging refrigerant


Low-pressure needle valve

Reducing valve
Refrigerant
cylinder
Discharge pipe
needle valve
Electronic
scale
Liquid pipe
needle valve

Exhaust
pipe
Nitrogen cylinder needle
Liquid pipe needle valve
Nut valve

41
Scenario Without a Low Temperature Component
(NetCol8000-A045 Upflow)

Vacuum 1. Leak checking
pump 2. Vacuuming
3. Precharging refrigerant


Low-pressure needle valve
Reducing valve

Refrigerant cylinder

Electronic
scale


Nut
Nitrogen cylinder
Discharge pipe
needle valve

Scenario Without a Low Temperature Component
(NetCol8000-A060 Upflow)

1. Leak checking
2. Vacuuming
3. Precharging refrigerant
Nut

Reducing valve
Refrigerant
cylinder

Electronic Vacuum
scale pump


Nitrogen cylinder
Low-pressure
Discharge pipe needle valve
needle valve


42
Scenario with a Low Temperature Component (NetCol8000-A060 Upflow)

1. Leak checking
2. Vacuuming
3. Precharging refrigerant
Reducing valve Low-pressure needle valve
Refrigerant
cylinder

Nut
Electronic
Vacuum
scale
pump


Nitrogen cylinder

Discharge pipe Liquid pipe
needle valve needle valve
Scenario with a Low Temperature Component (NetCol8000-A045 Upflow)

Vacuum pump
1. Leak checking
2. Vacuuming
3. Precharging refrigerant


Low-pressure needle valve
Reducing valve
Refrigerant
cylinder


Electronic Nut
scale


Nitrogen
Liquid pipe
cylinder Discharge pipe
needle valve
needle valve


43
10 Power-On
10.1 Power-On


• Users are classified into admin and operator. The preset password is 000001 for both
types of users.
• After powering on, the smart cooling product is in shutdown mode.
• After powering on, the compressor starts preheating, and the system generates an
alarm indicating that the compressor is preheating (for 12 hours). Do not start the
smart cooling product before the preheating ends. Choose Running > Device Details
> Compressor to query the remaining preheating time.
• The smart diagnosis function is available only when the outdoor unit is configured with
a temperature control intelligent monitoring board.

1. Turn on the smart cooling product switch in the upstream power distribution frame (PDF).
2. Turn on the main switches.
3. After the device is powered on for the first time, the LCD displays the Quick Settings screen.
Set parameters as instructed, such as language, date format, date, time, and time zone. If the
device is not powered on for the first time, the home screen is displayed.

10.2 Configuring Initial Parameters

1. Set the control mode based on the actual configuration of T/H sensors.
2. If a differential pressure switch is configured, set Indoor fan control type to Pressure diff ctrl.

10.3 (Optional) Teamwork Settings

Item (FE network)
Team Team Number of
Number of Require
No. work System work running Rotation
Networking mode systems in ment
group address functi systems in function
this group control
no. on this group

1 1 1 Enable FE network 8 6 (2 standby) Enable Enable

2 1 2 Enable FE network / / / /

... ... ... ... ... ... ... ... ...

7 1 7 Enable FE network / / / /

8 1 8 Enable FE network / / / /


44
Item (CAN network)
Enable
Teamw Teamw Number of
teamw Number of Rotatio Require
No. ork System ork Networki running
ork systems in n ment
group address functio ng mode systems in
CAN this group function control
no. n this group
resistor
CAN
1 1 1 Yes Enable 8 6 (2 standby) Enable Enable
network
CAN
2 1 2 No Enable / / / /
network

... ... ... ... ... ... ... ... ... ...

CAN
7 1 7 No Enable / / / /
network
CAN
8 1 8 Yes Enable / / / /
network
1. Teamwork group No.: A teamwork network can contain a maximum of four groups, which can
be numbered 1 to 4 respectively. Smart cooling products in a group must have the same
teamwork group number.
2. System address: In a teamwork group, the address (1–32) of each unit must be unique and the
unit with the smallest address is the master unit.
3. Networking mode: The networking mode set on the screen must be consistent with the actual
networking mode.
4. Enable teamwork CAN resistor: Set the parameter if CAN teamwork is used. Set the parameter
to ON for the first and last units.
5. Number of systems in this group: specifies the number of units in a group. The value is an
integer ranging from 1 to 32.
6. Number of running systems in this group: specifies the number of running units in a group. The
value ranges from 1 to the number of units in the group.
7. Rotation function: If this function is enabled, the active and standby units will work alternately.
This function is recommended when the heat load is even.
8. When Requirement control is set to Anti-competitive running, the master smart cooling product
synchronizes operating data (parameters such as the T/H control type, temperature set point,
humidity set point for the master smart cooling product) to the slave smart cooling product,
and all the precision smart cooling products in the group refer to the mode delivered by the
master smart cooling product. When Requirement control is set to Disable, all the smart
cooling products operate based on their own requirements. When the requirement control is
Indoor fan unified control or Central load distribution, all smart cooling product fans in the
group rotate at the same speed.
11 Startup and Wizard Startup


• Technical support engineers can obtain the service authorization code through the app. For details,
see the Data Center Facility Deployment Guide.
• Ensure that no combustion-supporting materials (air or additives) enter the air conditioning system
during commissioning. The Company shall not be liable for any risks and losses thus incurred.

45
1. First startup flowchart 2. Wizard startup flowchart

Start Start

No
Tap Start on the home screen. Precautions & check
items
After tapping Yes, check the barcode and Yes No
the verification code shown on the screen. Select
commissioning items
Contact technical support engineers and
notify them of the barcode and Yes
Indoor fan Fail
verification code to obtain the service Commissioning
commissioning
authorization code. interrupted
Success (Handle the fault
Fail
Enter the generated startup password on Outdoor fan by referring to
the screen of the smart cooling product. commissioning the tips
Success displayed on the
home screen.
Electric heater Fail
Tap Enter. The screen goes to commissioning Perform wizard
Wizard Startup. startup after the
Success handling.)
Humidifier Fail
Yes
commissioning
Refrigerant is fully charged?
Success
No Cooling system Fail
commissioning
Tap No on the Wizard Startup screen to
exit wizard startup. Success
End
Tap Start on the home screen and choose
Maint > Diagnostic Mode > Enter.

Set the compressor speed to 3000 rpm.
• Except that the indoor fan
item is mandatory, you can
Charge the remaining amount of
clear other commissioning
refrigerant from the low-pressure needle
Tap Yes on the items that are not required.
valve.
Wizard Startup • If there is no water supply,
screen to enter clear the humidifier
Choose Maint > Diagnostic Mode > Exit wizard startup. commissioning item. After
and tap Shutdown on the home screen. wizard startup, lift the low
liquid level detector. After
at least 5 seconds, choose
Choose Maint > Wizard Startup to enter Running > Device Details
wizard startup. > Humidifier to check that
Low liquid level states is
Triggered. Choose
Go to step 2.
Running > Device Details
> Humidifier > Advanced
to check that Humidifier
pump control states is On,
indicating that the
humidifier is functional.

46
When the compressor is 3000 rpm, the following table lists the proper system values.

Ambient Proper Discharge Pressure Range Proper Suction Pressure Range
Temperature (Running > Device Details > (Running > Device Details >
Compressor) Compressor)
< 15°C 1.5–2.5 MPa
15–35°C 1.5–3.1 MPa
0.7–1.2 MPa
35–45°C 2.5–3.8 MPa
> 45°C 3.1–4.15 MPa

12 (Optional) Power-off
1. On the home page, tap Shutdown.
2. Turn off the general switch.
3. (Optional) If the power supply needs to be disconnected for maintenance or for a long
period, turn off the smart cooling product switch in the PDF.
13 Checking After Commissioning
Check Item Result
No oil stain exists on the copper pipe thermal insulation foam or bottom
□Passed □Failed
plate.
The needle valve plug is secured (torque of 0.45±0.05 N·m), and valve
□Passed □Failed
bonnet is tightened.
The foreign matter inside the water pan and bottom plate is cleaned up. □Passed □Failed
The air filter is correctly installed according to the airflow direction
□Passed □Failed
marked on the frame.


47
Huawei Digital Power Technologies Co., Ltd.
Huawei Digital Power Antuoshan Headquarters
Futian, Shenzhen 518043
People's Republic of China
www.huawei.com