Huawei NetCol8000-E220 Manual de usuario
1Overview
1
Item
NetCol8000
-E220
Power
380
-415 V AC, 3 Ph, 50Hz
Net weight
NetCol8000
-E220DM0AA: 5150 kg
NetCol8000
-E220DM0BA: 5700 kg
Dimensions (H x W x D)
6058 mm x 2438 mm x 3600 mm (excluding an air duct)
Optional components
Air duct
assembly, temperature and humidity sensor
Issue: 03
Part Number: 31500BMA
Date: 2020-02-25
NetCol8000-E220 Modular Indirect
Evaporative Cooling System
Quick Guide
(1) Outdoor air outlet port
(5) Condensate
drainpipe 1
(9)
Spray water refill pipe
(2) Electric control
box (The
52273922 has a single door,
and 52273922
-001 has two
door.)
(6) No.
2nd maintenance
door
(10) Outdoor air intake port (on the side)
(3) Display
(7)
Condensate drainpipe 2
(11) No
.3rd maintenance door
(4) No.
1stmaintenance door
(8)
Spray drainpipe
External Components
Copyright © Huawei Technologies Co., Ltd. 2020 All rights reserved.
2
Internal Components
(1) Outdoor air outlet port
(7) Compressor
(13) Outdoor air intake port
(at the end)
(2) Electric control box
(8) Pump
(14)
Indoor air return port
(3) Indoor air supply port
(9) Water inlet and outlet
electric valve
(15) Air return
filter
(4) Indoor
air supply fan
(10) Water tank
(16) Condenser
(5) Evaporator
(11)
Water spraying system
(17) Outdoor air outlet fan
(6) Gas
-liquid separator
(12)
Outdoor air intake port (on the side)
(18) Light
2Preparations
Materials delivered with
equipment
Combined hexagon head bolts, Cable tie, OT ground terminal of the power
cable, condensate trap DN20, drainage drain pipe trap DN40, angle steel
and fixing screws, expansion bolt M16
×150, sealing mud, sealing sheet
metal for water inlet and drainage, self
-tapping nail, T-bolt, color swatch
Optional components
Air duct assembly
, temperature and humidity sensor,etc
Engineering
purchase
Water pipe
•
Spray water refill pipe: G 3/4 inch outer screw thread (DN20)
•
Spray drainpipe: G 1-1/2 inch inner screw thread (DN40)
•
Condensate drainpipe: G 3/4 inch inner screw thread (DN20)
Cable
•
Power cable: 4 x 70 mm²(L1/L2/L3/N) + 35 mm²(PE), active and
standby power cablesa
•
OT terminal: 35 mm², M10, 6 PCS
•
OT terminal: 70 mm², M10, 14 PCS
•
Ground cable: 35 mm², 2 PCS
•
Cable tie: 10 PCS
a:
Only active and standby power cables are usually used. If you need to separately power the
compressor, an external cooling power supply is required.
Special Tools
2.2
Indoor installation scenario: Crane (lifting capacity ≥10T), ground tank, electric forklift (with long arm)
Outdoor installation scenario: Crane (lifting capacity ≥10T)
Preparing Materials
2.1
3
Do not use inferior refrigerant. Otherwise, Huawei has no responsibility for the damage caused by
the inferior refrigerant.
Follow these suggestions to choose a high-quality refrigerant:
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 (
°C
)
Gauge
(
MPa)
Saturation
Temperature (
°C)
Gauge
(MPa)
Saturation
Temperature (
°C)
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 2.04
18 1.27 27 1.65 36 2.10
Refrigerant R410A
2.4
Requirements for Maintenance Space
2.3
Unit: mm
Wall
Electric control box
4
(Optional) Concrete Platform Scenario
3.1
1. According to the site space and device
dimensions to decide the location of concrete
platforms. And mark the four reference points of
concrete platforms using an ink fountain and
measuring tape.
When marking the mounting positions for concrete platforms, ensure that the four lines form a rectangle.
Concrete
platform
Unit: mm
3Securing the NetCol8000-E
1. Read the related user manual before installing the device.
2. Ensure that the concrete platform levelness meets the requirements before installation.
3. The device must be installed strictly according to the heating ventilation air conditioning (HVAC)
equipment construction regulations.
1. When the equipment is installed indoors, it is recommended that shock pads be installed
between the air duct and the floor.
2. When the equipment is installed outdoors, it is recommended that the air duct be secured on the
concrete platform (as shown in the following figure) to prevent rain from soaking the air duct.
Unit: mm
2. Connect the steel hoisting ropes, and hoist the device onto the concrete platforms.
4. Secure the equipment to the concrete platform using four right angle brackets.
Indoor scenario
3. Use M12 screws to secure the air duct to the floor or concrete platform.
Outdoor scenario
5
(Optional) Steel Base Scenario
3.2
(1) M20 T
-shaped bolt
(2) 15 mm steel plate
(3) Rectangular tube (100 mm x 100 mm x 6
mm)
(4) Reinforced angle plate (right angle edge: 80
mm x 50 mm, 15 mm thick)
(5) Expansion bolt (M16 x 150 mm)
(6) 14B# channel steel
6
1. Prepare a steel base.
Steel base
1. When the equipment is installed indoors, it is recommended that shock pads be installed
between the air duct and the floor.
2. When the equipment is installed outdoors, it is recommended that the air duct be secured on the
concrete platform (as shown in the page 4) to prevent rain from soaking the air duct.
Unit: mm
7
4. Turn the four M20 twistlocks in the base by 90 degrees to lock the equipment, and tighten the
twistlocks using a torque wrench.
2. Connect the steel hoisting ropes, and hoist the device onto the concrete platforms.
3. Use M12 screws to secure the air duct to the floor or concrete platform.
Indoor scenario Outdoor scenario
8
Installing a ground lug
Installing a ground cable
1. Remove the packaging.
4Installing Air Ducts
(Optional) Installing a Supply Air Duct
4.1
Grounding the NetCol8000-E
3.3
•Ground lugs mode: Before the installation, remove the tinfoil from the ground lugs.
•Ground cables mode: Ground cables can be routed through plastic-coated metal hoses for
protection based on site requirements.
NOTE
9
4. Push the stitched air channel into the bottom of the device. Remove the canvas sheet metal
from the end of the air duct using diagonal pliers.
2. Remove the thread plates. 3. Remove the eight screws that fasten the air
vent baffle, and remove the air vent baffle.
5. Put thermal insulation foam between the equipment and the air channel connection surface, and
fix the equipment and air channel by twenty-four M6 fixing screws.
Ensure that there is no air leakage on the contact between the equipment and the air duct.
Otherwise, condensate water may occur.
NOTE
Connection between the
air duct and equipment
(A) Canvas sheet metal
(B) Canvas
(C) Thermal insulation foam
(D) Equipment
10
6. Wrap the rubber plastic thermal insulation foam (at least 3 cm thick, covering the aluminum foil)
for the canvas.
Installing a Return Air Duct
4.2
(1) Flexible connection (canvas or other materials; prepared onsite)
(2) Hard connection (foaming plate; prepared onsite)
5Connecting Water Pipes
1. Connect the water pipes using thread connectors. The thread joints need to be sealed with raw
materials or thread adhesive.
2. Clean the external water pipes before connecting them to the water inlet and outlet pipes of the
coil pipes of the NetCol8000.
3. Connect the water inlet and outlet pipes of the NetCol8000 using thread connectors. When
connecting the water pipe, do not exert excessive force to prevent damage to the coil pipe.(When
connecting the pipes provided with the NetCol8000, use two pipe wrenches or chain pliers.)
4. Heat preservation measures must be taken at low temperatures to prevent water from freezing in
the water pipe.
5. The drainpipe must be wrapped with thermal insulation foam (including the buried parts).
NOTE
Thermal insulation foam
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