Huawei SUN2000-8KTL User manual

31505445
SUN2000 (8KTL-28KTL)
Quick Installation Guide
Issue
04
Date
2013-12-12
HUAWEI TECHNOLOGIES CO., LTD.

Issue 04 (2013-12-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
i
Copyright © Huawei Technologies Co., Ltd. 2013. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. 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.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://enterprise.huawei.com

SUN2000 (8KTL-28KTL)
Quick Installation Guide
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1. Overview
Personnel Requirements
Only qualified and trained electrical technicians are allowed to operate the SUN2000.
Operation personnel should understand the composition and working principles of the
PV grid-tied power system and local regulations.
Identification Protection
The signs on the SUN2000 shell specify important information about secure operation.
Do not damage the signs.
The nameplate attached to the SUN2000 side panel lists the SUN2000 parameter
information. Do not damage the nameplate.
Installation
Before installation, read this document carefully. Huawei shall not be liable for any
consequence caused by violation of the regulations specified in this document.
Before installing the SUN2000, ensure that the SUN2000 is not connected or electrified.
Install the SUN2000 in environments with good ventilation to ensure system
performance.
Ensure that the SUN2000 heat sinks are unblocked.
Do not move the components inside the shelf except the wiring terminals at the bottom.
Electrical Connection
Before connecting cables to the SUN2000, ensure that the SUN2000 is intact and secure.
Otherwise, electrical shocks or fire may be triggered.
Before connecting cables to the SUN2000, shield the PV modules by using opaque cloth.
All electrical connections must comply with local laws and regulations.
Before using the SUN2000 to generate electricity in grid-tied mode, obtain approval
from the local power supply department.
Ensure that the cables to the solar power system are properly connected and insulted
(That is, the insulation resistance between the ground and the main loop formed by PV
module strings, the SUN2000, and protective devices is less than 1 Mohm.) and meet
specifications.

SUN2000 (8KTL-28KTL)
Quick Installation Guide
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Operation
High voltages may cause electrical shocks and death during SUN2000 operation. Strictly
comply with the safety precautions in this document and associated documents when
operating the SUN2000.
Do not disconnect the DC power supply during the SUN2000 operation.
Do not touch a running SUN2000 except for the liquid crystal display (LCD) and DC
switch because the shelf and heat sinks become hot during the SUN2000 operation.
Only professionals are allowed to set initialization parameters during the first power-on
of the SUN2000. Incorrect settings may affect the SUN2000 operation and cause the
SUN2000 to conflict with local certification.
Keep an over 20 cm distance away from the SUN2000 because radiation is generated
during the SUN2000 operation.
When operating the SUN2000, follow local laws and regulations.
Maintenance and Replacement
Before maintaining the SUN2000, disconnect power cables from the AC and DC side
and wait at least 5 minutes.
Stand temporary warning signs or fences to prevent unauthorized personnel to enter the
maintenance site.
Rectify the faults that compromise the SUN2000 security performance before restarting
the SUN2000.
A faulty SUN2000 requires overall maintenance. Contact the dealer if any fault occurs
inside the SUN2000.
Maintain the SUN2000 after you get familiar with this document and tools and testing
equipment are prepared.
When maintaining the SUN2000, wear ESD gloves and comply with ESD precautions.
2. Tools
Prepare tools required for installation and electrical connections.

SUN2000 (8KTL-28KTL)
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Hammer drill
With a drill bit of Φ14
Adjustable wrench
With an open end of larger
than or greater than 32 mm
Torque screwdriver
Hexagon socket head:
5 mm
Flat head: M6
Flat-head screwdriver
M4
Torque wrench
With an open end of 10 mm
Diagonal pliers
Wire stripper
Rubber mallet
Guarded blade utility
knife
Cable cutter
Crimping tools
RJ11 crimping tool
Removal tool
Vacuum cleaner
Multimeter
Marker
Diameter: 10 mm
Measuring tape
Level
ESD gloves
Safety goggles
Anti-dust respirator

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3. Moving the SUN2000
Step 1 Insert hands into the slots on both sides of the SUN2000 and hold the handles, as shown in
Figure 1-1 and Figure 1-2. Two persons are required to move the SUN2000.
Figure 1-1 Moving the SUN2000 (1)
Figure 1-2 Moving the SUN2000 (2)
Step 2 Lift the SUN2000 from the packing case and move it to the installation position.

SUN2000 (8KTL-28KTL)
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To prevent device damage and personal injury, keep balance when moving the SUN2000
because the SUN2000 is heavy.
Do not put the SUN2000 with its wiring terminals contacting the floor because the power
ports and signal ports are not designed to support the weight of the SUN2000. Place the
SUN2000 horizontally.
When placing the SUN2000 on the floor, put foam or paper under the SUN2000 to protect
its shell.
----End
4. Installing the SUN2000
If the installation location is near the ground, first connect the PGND cable to the ground before
installing the SUN2000 on the wall. For details, refer to 5 Connecting PGND Cables.
Step 1 Install the rear panel.
If you use a ladder to install the SUN2000 on a high position, keep balance to protect yourself
from falling down.
1. Determine the position for drilling holes, level hole positions, and then mark the hole
positions by using a marker, as shown in Figure 1-3.

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Figure 1-3 Hole positions and dimensions
To ensure good heat dissipation and reserve enough space for installing the SUN2000,
the SUN2000 is at least 200 mm, 500 mm, 300 mm, and 1000 mm away from objects on
its both sides, top, bottom, and front respectively, as shown in Figure 1-4.
Figure 1-4 Minimum installation clearance
When installing multiple SUN2000s, install them in the same line if sufficient space is
available and install them in triangle mode shown in Figure 1-5. If no sufficient space is

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available.The stacked installation mode shown in Figure 1-6 is not recommended. The
clearance between SUN2000s meets requirements shown in the following figures.
Figure 1-5 Triangle installation mode

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Figure 1-6 Stacked installation mode
2. Drill holes by using a hammer drill and install expansion bolts, as shown in Figure 1-8.
An expansion bolts contains four parts, as shown in Figure 1-7.

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Figure 1-7 Expansion bolt composition
1. Expansion sleeve
2. Flat washer
3. Spring washer
4. M10x60 bolt
Figure 1-8 Drilling a hole and installing an expansion bolt
Table 1-1 describes the operations shown in Figure 1-8.
Table 1-1 Description
Step
Operation
1
Put a hammer drill with a Ф14 drill bit on a marked hole position
perpendicularly against the wall and drill holes with a depth of 52-60 mm.
NOTICE
To prevent dust inhalation or contact with eyes, wear safety goggles and an anti-dust
respirator when drilling holes.
Vacuum any dust in or around the holes by using a vacuum cleaner and measure the hole
distance. If the holes are inaccurately positioned, drill holes again.
2
Vertically insert an expansion bolt into a hole, and knock the expansion bolt
completely into the hole by using a rubber mallet.
3
Remove the M10x60 bolt, spring washer, and flat washer by rotating them
counterclockwise.
NOTICE
Level the front of the expansion sleeve with the concrete wall after removing the bolt,
spring washer, and flat washer. Otherwise, the rear panel will not be securely installed on
the concrete wall.

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3. Align the rear panel with hole positions, insert expansion bolts into the holes, and tighten
the expansion bolts to a torque of 30 N.m using a torque wrench with a 17 mm open end,
as shown in Figure 1-9.
Figure 1-9 Securing a rear panel
Step 2 Install the SUN2000.
You are advised to install the SUN2000 in a position in the same height as your eyes to facilitate
operation and maintenance.
If the installation position is low and you can mount the SUN2000 on the rear panel, go
to Step 2.4 after performing Step 2.1.
If the installation position is high and you cannot mount the SUN2000 on the rear panel,
perform Step 2.2 to Step 2.5.
1. Use one hand to hold the handle at the bottom of the SUN2000 and use the other hand to
hold the handle close to the top of the SUN2000 and then stand the SUN2000, as shown
in Figure 1-10. Two peoples are required to install the SUN2000.
To prevent device damage and personal injury, keep balance when lifting the SUN2000
because the SUN2000 has a heavy top.

SUN2000 (8KTL-28KTL)
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Figure 1-10 Lifting the SUN2000
2. Remove the two rubber screws from the top of the SUN2000 using a flat-head
screwdriver, and install two M10 lifting eyes, as shown in Figure 1-11.
Figure 1-11 Installing lifting eyes
3. Route a rope through the lifting eyes and hoist the SUN2000, as shown in Figure 1-12.
The rope must bear the SUN2000 weight.
When hoisting the SUN2000, keep balance to protect the SUN2000 from colliding with the
wall or other objects.

SUN2000 (8KTL-28KTL)
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Figure 1-12 Hoisting the SUN2000
4. Mount the SUN2000 on the rear panel and keep them aligned with each other, as shown
in Figure 1-13 and Figure 1-14.
Figure 1-13 Mounting the SUN2000 on the rear panel (front view)

SUN2000 (8KTL-28KTL)
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Figure 1-14 Mounting the SUN2000 on the rear panel (rear view)
5. Tighten the two hexagon screws at the bottom the SUN2000 (tightening torque of 5
N.m), and then install an anti-theft lock, as shown in Figure 1-15.
You can secure the SUN2000 to the rear panel and protect it from stealing by installing
an anti-theft lock, but this action is optional.
Figure 1-15 Tightening hexagon screws
----End

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Quick Installation Guide
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5. Connecting PGND Cables
Good grounding for the SUN2000 can help resist the impact of the surge voltage and improve the
EMI performance. First connect the PGND cable before connecting the AC power cable, DC power
cable, and communication cable.
For the system with one SUN2000, connect the PGND cable to the ground. For the system with
multiple SUN2000s, connect the PGND cables of all SUN2000s to a ground bar in equipotential
mode.
If the installation location is near the ground, first connect the PGND cable to the ground before
installing the SUN2000 on the wall.
Step 1 Remove the insulation layer with an appropriate length using a wire stripper, as shown in
Figure 1-16.
10 AWG outdoor power cables are recommended for grounding purposes.
Figure 1-16 Preparing a ground cable (1)
Note: L2 is 2 to 3 mm longer than L1.
Step 2 Insert the exposed core wires into the OT terminal and crimp them by using a crimping tool,
as shown in Figure 1-17.
Recommanded OT terminals: OT M6; recommanded ground cables: with a cross sectional
area of larger than or equal to 6 mm2.
Figure 1-17 Preparing a ground cable (2)
Note 1: L3 is the length between the insulation layer of the ground cable and the crimped part.
L4 is the distance between the crimped part and core wires protruding from the crimped part.

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Note 2: The cavity formed after crimping the conductor crimp strip shall wrap the core wires
completely. The core wires shall contact the terminal closely.
Step 3 Install the crimped OT terminal, flat washer, and spring washer on the M6 welded stud, and
tighten the nut to a torque of 5 N.m using a socket wrench.
To enhance the anti-corrosion performance of the ground terminals, apply silica gel on them after
connecting the ground cable.
----End
6. Connecting AC Output Power Cables
Step 1 Remove the cable gland and the adapter from the AC output connector.
Step 2 Remove the insulation layer of the AC output cable of an appropriate length using a wire
stripper.
The three-phase AC input power cables, neutral cable, and PGND cable must be properly
connected. (No neutral cable connections are involved for the SUN2000-28KTL.)
1. Strip the outer jacket of AC output cable by 55 mm.
2. Cut the core wires of the cables excluding the PGND cable by 2.5 mm.
That is, the core wire of the PGND cable should be 2.5 mm longer than that of other four
cables. For the SUN2000-28KTL, the neutral cable does not connect to the AC output
terminal.Align the neutral cable with the protective jacket and cut it off to facilitate the
stripping of the other four core wires.
3. Strip the insulation layer of each core wires by 12 mm.
Figure 1-18 Connecting anAC output power cable (1) (unit: mm)
The preceding figure shows only how to strip cables for the SUN2000-8KTL to SUN2000-23KTL. For
the SUN2000-28KTL, align the neutral cable with the protective jacket and cut off the neutral cable.
Step 3 Insert AC output cable (L1, L2, L3, N, and PE) into the cable gland and the adapter, as shown
in Figure 1-19 and Figure 1-20.

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If the external cable diameter ranges from 16 mm to 20 mm, remove a seal ring from the cable gland
before inserting the power cable into the cable gland and the adapter.
Figure 1-19 Connecting anAC output power cable (2)
Figure 1-20 Connecting anAC output power cable (3)
Step 4 Loosen the screws inside the coupling nut holes using a flat-head screwdriver, insert the core
wires into corresponding holes, and tighten the screws, as shown in Figure 1-21 and Figure
1-22.
Tighten the screws to a torque of 0.7 N.m.
Figure 1-21 Connecting anAC output power cable (4)
Connect L1 to the hole numbered 1.
Connect L2 to the hole numbered 2.

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Connect L3 to the hole numbered 3.
Connect N to the hole numbered 4.
For the SUN2000-28KTL, do not connect the neutral cable to the hole numbered 4.
Connect PE to the hole marked .
Figure 1-22 Connecting anAC output power cable (5)
Step 5 Check that all core wires are properly connected, as shown in Figure 1-23.
Figure 1-23 Connecting anAC output power cable (6)
Step 6 Secure the adapter to the coupling nut, as shown in Figure 1-24.
Tighten the adapter to a torque of 1-2 N.m.

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Figure 1-24 Connecting anAC output power cable (7)
Step 7 Secure the cable gland to the adapter, as shown in Figure 1-25.
Tighten the cable gland to a torque of 5 N.m (You need to use some tool to achieve this
torque).
Figure 1-25 Connecting anAC output power cable (8)
Step 8 Connect the AC output connector to the bayonet coupling of the AC output wiring terminal on
the SUN2000 and rotate it clockwise until you hear a "click" sound, as shown in Figure 1-26.
Because no sufficient space is available on the right of theAC terminal, tighten the terminal
using the left hand.
Figure 1-26 Connecting anAC output power cable (9)
The AC output connector securely connects to the AC output wiring terminal after the
bayonet coupling snaps into place.
----End