SMA SUNNY CENTRAL CP XT Series User manual

SCCPXT-SCS_NR-IA-en-12 | 98-129600.02 | Version 1.2ENGLISH
Installation Manual
Retrofitting of the Option "Noise Reduction"
SUNNY CENTRAL of the CP XT Series and
SUNNY CENTRAL STORAGE

Legal Provisions SMA Solar Technology AG
Installation ManualSCCPXT-SCS_NR-IA-en-122
Legal Provisions
The information contained in these documents is the property of SMA Solar Technology AG. Any publication, whether
in whole or in part, requires prior written approval by SMA Solar Technology AG. Internal reproduction used solely for
the purpose of product evaluation or other proper use is allowed and does not require prior approval.
SMA Warranty
You can download the current warranty conditions from the Internet at www.SMA-Solar.com.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not mean that a
product or brand is not a registered trademark.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
Email: [email protected]
Status: 3/15/2018
Copyright © 2018 SMA Solar Technology AG. All rights reserved.

Table of Contents
SMA Solar Technology AG
Installation Manual 3SCCPXT-SCS_NR-IA-en-12
Table of Contents
1 Information on this Document..................................................................................................... 4
1.1 Validity ............................................................................................................................................................. 4
1.2 Target Group ................................................................................................................................................... 4
1.3 Levels of warning messages............................................................................................................................ 4
1.4 Symbols in the Document................................................................................................................................ 5
2 Safety ............................................................................................................................................ 6
2.1 Intended Use.................................................................................................................................................... 6
2.2 Safety Information ........................................................................................................................................... 7
2.3 Personal Protective Equipment........................................................................................................................ 9
3 Product Overview ........................................................................................................................ 10
3.1 Design of the Inverter ...................................................................................................................................... 10
3.2 Type Label........................................................................................................................................................ 10
4 Scope of Delivery ......................................................................................................................... 11
5 Preparation for Mounting............................................................................................................ 13
5.1 Additionally required mounting material........................................................................................................ 13
5.2 Disconnecting the Inverter............................................................................................................................... 13
6 Mounting....................................................................................................................................... 14
6.1 Safety during Mounting .................................................................................................................................. 14
6.2 Disassembling the Kick Plates......................................................................................................................... 14
6.3 Removing the Existing Ventilation Plate.......................................................................................................... 15
6.4 Disassembling the Rear Panel......................................................................................................................... 16
6.5 Mounting the New Rear Panel....................................................................................................................... 18
6.6 Mounting the Kick Plate for the Sound Absorber.......................................................................................... 19
6.7 Mounting the Ventilation Plate........................................................................................................................ 19
6.8 Mounting the Kick Plate .................................................................................................................................. 19
6.9 Mounting the Silencing Baffle......................................................................................................................... 20
7 Switching the Inverter On............................................................................................................ 23
8 Dimensions and minimum clearances ........................................................................................ 24
8.1 Dimensions of the Inverter............................................................................................................................... 24
8.2 Minimum Clearances for Outdoor Installation .............................................................................................. 24
9 Technical Data .............................................................................................................................. 27
10 Contact .......................................................................................................................................... 28

1 Information on this Document SMA Solar Technology AG
Installation ManualSCCPXT-SCS_NR-IA-en-124
1 Information on this Document
1.1 Validity
This document is a supplement to the provided installation manual of the product and describes the mounting of the
accessory parts of the order option "Noise Reduction".
This document is valid for the following device types:
• SC500CP‑10 (SunnyCentral500CPXT)
• SC630CP‑10 (SunnyCentral630CPXT)
• SC720CP‑10 (SunnyCentral720CPXT)
• SC760CP‑10 (SunnyCentral760CPXT)
• SC800CP‑10 (SunnyCentral800CPXT)
• SC850CP‑10 (SunnyCentral850CPXT)
• SC900CP‑10 (SunnyCentral900CPXT)
• SC1000CP‑10 (SunnyCentral1000CPXT)
• SCS 500 (SunnyCentralStorage500)
• SCS 630 (SunnyCentralStorage630)
• SCS 720 (SunnyCentralStorage720)
• SCS 760 (SunnyCentralStorage760)
• SCS 800 (SunnyCentralStorage800)
• SCS 850 (SunnyCentralStorage850)
• SCS 900 (SunnyCentralStorage900)
• SCS 1000 (Sunny Central Storage 1000)
• Cabinet design (Version 11, V11.1), Manufacturer: BAS
Cabinet design V11, Manufacturer: Rittal
Illustrations in this document are reduced to the essential and may deviate from the real product.
1.2 Target Group
The tasks described in this document must only be performed by qualified persons. Qualified persons must have the
following skills:
• Knowledge of how the product works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical devices and
systems
• Training in the installation and commissioning of electrical devices and systems
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this manual and all safety precautions
1.3 Levels of warning messages
The following levels of warning messages may occur when handling the product.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

1 Information on this Document
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WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, can result in property damage.
1.4 Symbols in the Document
Symbol Explanation
Information that is important for a specific topic or goal, but is not safety-relevant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
✖
A problem that might occur

2 Safety SMA Solar Technology AG
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2 Safety
2.1 Intended Use
The assembly of the accessory parts of the order option "Noise Reduction" reduces the noise emission of the product
and is suitable for SunnyCentral inverters of the CPXT series and SunnyCentralStorage battery inverters.
After mounting the accessory parts of the order option "Noise Reduction", the enclosure is still complying with the
degree of protection IP54.
Use this product only in accordance with the information provided in the enclosed documentation and with the locally
applicable standards and directives. Any other application may cause personal injury or property damage.
Any use of the product other than that described in the Intended Use section does not qualify as the intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for
future reference and observe all instructions contained therein.

2 Safety
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2.2 Safety Information
This section contains safety information that must be observed at all times when working on or with the product. To
prevent personal injury and property damage and to ensure long-term operation of the product, read this section
carefully and observe all safety information at all times.
DANGER
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the product. Touching live components results in death or
serious injury due to electric shock.
• Wear suitable personal protective equipment for all work on the product.
• Do not touch any live components.
• Observe all warning messages on the product and in the documentation.
• Observe all safety information of the module manufacturer.
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely (see Section5.2, page13).
DANGER
Danger to life from electric shock due to live DC cables
DC cables connected to PV modules that are exposed to sunlight carry live voltage. Touching live cables results in
death or serious injury due to electric shock.
• Prior to connecting the DC cables, ensure that the DC cables are voltage-free.
• Wear suitable personal protective equipment for all work on the device.
DANGER
Danger to life from electric shock due to ground fault
If a ground fault has occurred, parts of the PV power plant that are supposedly grounded may in fact be live.
Touching incorrectly grounded parts of the PV power plant results in death or serious injuries from electric shock.
• Before working on the PV power plant, ensure that no ground fault is present.
• Wear suitable personal protective equipment for all work on the device.
DANGER
Danger to life from electric shock due to damaged product
Operating a damaged product can lead to hazardous situations that result in death or serious injuries due to
electric shock.
• Only operate the product when it is in a flawless technical condition and safe to operate.
• Check the product regularly for visible damage.
• Make sure that all external safety equipment is freely accessible at all times.
• Make sure that all safety equipment is in good working order.
• Wear suitable personal protective equipment for all work on the product.

2 Safety SMA Solar Technology AG
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WARNING
Danger to life from electric shock when entering the PV field
Ground-fault monitoring does not provide protection from personal injury. PV modules which are grounded with
ground-fault monitoring discharge voltage to ground. Entering the PV field can result in lethal electric shocks.
• Ensure that the insulation resistance of the PV field exceeds the minimum value. The minimum value of the
insulation resistance is: 1 kΩ.
• Before entering the PV field, switch the PV modules to insulated operation.
• Configure the PV power plant as a closed electrical operating area.
WARNING
Danger to life from electric shock if the product is not locked
If the product is not locked, unauthorized persons will have access to live components carrying lethal voltages.
Touching live components can result in death or serious injury due to electric shock.
• Always close and lock the product.
• Remove the keys.
• Store the keys in a safe place.
• Ensure that no unauthorized persons have access to the closed electrical operating area.
WARNING
Danger to life due to blocked escape routes
In hazardous situations, blocked escape routes can lead to death or serious injury. Opening the doors of two
products located opposite each other can block the escape route. It is imperative that the escape route is freely
accessible at all times.
• An escape route must be available at all times. Make sure the minimum passage width of the escape route
meets local standards.
• Do not place any objects in the escape route area.
• Remove all tripping hazards from escape routes.
CAUTION
Risk of burns due to hot components
Some components of the product can get very hot during operation. Touching these components can cause burns.
• Observe the warnings on all components.
• During operation, do not touch any components marked with such warnings.
• After switching off the product, wait until any hot components have cooled down sufficiently.
• Wear suitable personal protective equipment for all work on the product.

2 Safety
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NOTICE
Property damage due to dust intrusion and moisture penetration
Dust or moisture intrusion can damage the product and impair its functionality.
• Do not open the enclosure during rainfall or when humidity exceeds the specified thresholds. The humidity
thresholds are: 15% to 95%.
• Only perform maintenance work when the environment is dry and free of dust.
• Operation of the product is only permitted when it is closed.
• Connect the external supply voltage after mounting and installing the product.
• If the installation or commissioning process is interrupted, mount all panels.
• Close and lock the enclosure.
• The product must always be closed for storage.
• Store the product in a dry and covered location.
• Temperature at the storage location must be in the specified range. The temperature range is:
−25°Cto+70°C.
NOTICE
Damage to electronic components due to electrostatic discharge
Electrostatic discharge can damage or destroy electronic components.
• Observe the ESD safety regulations when working on the product.
• Wear suitable personal protective equipment for all work on the product.
• Discharge electrostatic charge by touching grounded enclosure parts or other grounded elements. Only then is
it safe to touch electronic components.
2.3 Personal Protective Equipment
Always wear suitable protective equipment
When working on the product, always wear the appropriate personal protective equipment for the specific job.
The following personal protective equipment is regarded to be the minimum requirement:
☐ In a dry environment, safety shoes of categoryS3 with perforation-proof soles and steel toe caps
☐ During precipitation or on moist ground, safety boots of categoryS5 with perforation-proof soles and steel toe
caps
☐ Tight-fitting work clothes made of 100%cotton
☐ Suitable work pants
☐ Individually fitted hearing protection
☐ Safety gloves
Any other prescribed protective equipment must also be used.

3 Product Overview SMA Solar Technology AG
Installation ManualSCCPXT-SCS_NR-IA-en-1210
3 Product Overview
3.1 Design of the Inverter
A
C
B
Figure 1: Design of the Inverter
Position Designation
A Inverter cabinet
B Interface cabinet
C Connection area
3.2 Type Label
The type label clearly identifies the product. One type label is present in the inverter. The type label is located in the
right-hand top corner inside the interface cabinet. You will require the information on the type label to use the product
safely and when seeking customer support. The type labels must be permanently attached to the product.
Reading off the serial number
You can identify the serial number without opening the inverter. The serial number can be found on the roof of the
inverter at the top left. You can also read off the serial number from the touch display.
Reading Off the Firmware Version
You can read off the version number of the inverter and touch display firmware via the user interface. You can
also read off the version number of the touch display firmware on the touch display.

4 Scope of Delivery
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Installation Manual 11SCCPXT-SCS_NR-IA-en-12
4 Scope of Delivery
Check the scope of delivery for completeness and any apparent external damage. Contact your distributor if the scope
of delivery is incomplete or damaged.
Scope of delivery of the silencing baffle
AC
B ED
H I K FG
Figure 2: Scope of delivery
Position Quantity Designation
A 1 Rear panel silencing baffle, including ventilation plate
B 1 Silencing baffle cover
C 1 Rain shield
D 1 Touch-up stick RAL7035
E 1 Assembly paste (Anti-Seize)
F 15 Pan head flange screw
G 9 Socket head cap screw
H 7 Contact washer
I 14 Washer
K 10 Hex nut

4 Scope of Delivery SMA Solar Technology AG
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Scope of delivery of the kick plate set and rear panel
DA EB C
Figure 3: Scope of delivery
Position Quantity Designation
A 1 Inverter rear panel
B 1 Kick plate set
C 1 Ventilation plate
D 1 Assembly paste (Anti-Seize)
E 9 Countersunk screw

5 Preparation for Mounting
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5 Preparation for Mounting
Provide storage facilities prior to the start of assembly work
Storage facilities for the enclosure parts must be provided prior to the start of the assembly work. Make sure that
the enclosure parts, seals and screws are not damaged during storage.
5.1 Additionally required mounting material
The tools and materials indicated in this section must be provided by the customer.
The following tools and materials are required for the assembly work:
☐ Torque wrench with TX attachment (TX30)
☐ Torx screwdriver (TX 30)
☐ Storage location for enclosure parts (e.g. padded storage cart)
☐ Torque wrench (socket wrench size 13)
5.2 Disconnecting the Inverter
The inverter must be disconnected prior to the disassembly of the rear panel.
DANGER
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the product. Touching live components results in death or
serious injury due to electric shock.
• Wear suitable personal protective equipment for all work on the product.
• Observe all warning messages on the product and in the documentation.
• Switch the inverter off (see inverter installation manual).
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Disconnect the inverter from the voltage source (see inverter installation manual).

6 Mounting SMA Solar Technology AG
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6 Mounting
6.1 Safety during Mounting
NOTICE
Property damage due to dust intrusion and moisture penetration
During assembly work, the inverter is not sufficiently protected against moisture and dust. If the assembly work is
carried out during rainfall or in a dusty environment, moisture or dust can penetrate the inverter. Dust or moisture
intrusion can damage the product and impair its functionality.
• Do not open the enclosure during rainfall or when humidity exceeds the specified thresholds. The humidity
thresholds are: 15% to 95%.
• Only perform assembly work when the environment is dry and free of dust.
NOTICE
Inverter failure due to improper storage of the enclosure parts
Seals are to be found on the rear side of the enclosure parts. The seals can be damaged if the enclosure parts are
incorrectly stored. Weatherproofing of the inverter may be compromised if the seals are damaged. Dust and
moisture can penetrate the inverter.
• Store the enclosure parts properly.
• Replace damaged seals.
6.2 Disassembling the Kick Plates
The kick plates are mounted at the front and rear of the inverter.
AB
Figure 4: Position of the kick plates
Position Designation
A Front kick plate on the inverter
B Rear kick plate on the inverter

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Requirement:
☐ The additionally required mounting material must be available (see Section5.1, page13).
Procedure:
1. DANGER
Danger to life from electric shock due to live voltage
Prior to performing any work on the inverter, disconnect it from voltage sources (see inverter installation
manual).
2. Loosen the four screws of the left front kick plate (TX 30). Retain
the screws for subsequent mounting of the new kick plates.
3. Remove the front kick plate.
4. Loosen the four screws of the right rear kick plate (TX 30). Retain
the screws for subsequent mounting of the new kick plates.
5. Remove the rear kick plate.
6. Dispose of the kick plates in accordance with the locally applicable disposal regulations.
6.3 Removing the Existing Ventilation Plate
1. Pull the ventilation plate forwards out of the base area of the
inverter cabinet. Grip underneath the ventilation plate and press
the middle part up while pulling it out.
2. Dispose of the ventilation plate.

6 Mounting SMA Solar Technology AG
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6.4 Disassembling the Rear Panel
A
Figure 5: Position of the rear panel to be disassembled
Position Designation
A Rear panel to be disassembled
Requirements:
☐ Two persons must be available for disassembling the rear panel.
☐ The required mounting material must be available (see Section5.1, page13).
☐ A storage location for the enclosure parts must be available.
☐ The inverter must be sufficiently protected from inclement weather.
CAUTION
Danger of crushing caused by heavy, bulky rear panel
The rear panel of the inverter is heavy and bulky. Danger of crushing when the rear panel slips off or tilts Weight of
the roof: 20kg.
• Wear suitable personal protective equipment for all work on the product.
• Always have two persons disassemble and mount the rear panel.
Procedure:
1. DANGER
Danger to life from electric shock due to live voltage
Prior to performing any work on the inverter, disconnect it from voltage sources (see inverter installation
manual).
2. Secure the rear panel of the inverter from slipping off.

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3. Unscrew all ten screws of the rear panel using a suitable
screwdriver (TX 30).
10x
4. Remove all screws from the rear panel and retain for later use.
5. Carefully pull the rear panel of the inverter cabinet approx.
80mm to 100mm towards you. Make sure that the hook fitting
cannot fall out.
6. NOTICE
Property damage due to grounding cable being ripped out
The rear panel of the inverter and the switch cabinet are connected via a grounding cable. If the rear panel is
removed without due care, the grounding cable could be ripped off and the inverter damaged.
• Use a wrench to release the grounding cable from the
rear panel before removing the rear panel (AF 13).
7. Remove the rear panel and store it.

6 Mounting SMA Solar Technology AG
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6.5 Mounting the New Rear Panel
Requirements:
☐ Two persons must be available for disassembling the rear panel.
☐ The required mounting material must be available (see Section5.1, page13).
☐ The inverter must be sufficiently protected from inclement weather.
CAUTION
Danger of crushing caused by heavy, bulky rear panel
The rear panel of the inverter is heavy and bulky. Danger of crushing when the rear panel slips off or tilts Weight of
the roof: 20kg.
• Wear suitable personal protective equipment for all work on the product.
• Always have two persons disassemble and mount the rear panel.
Procedure:
1. Position the new rear panel in front of the inverter opening and
secure it to prevent it from tipping over.
2. Apply metal-free all-purpose paste to the rear-panel bolt for mounting the grounding cable.
3. Fasten the grounding cable to the rear-panel bolt using a torque
wrench (AF 13, torque: 6Nm).
4. Ensure that the grounding cable is correctly mounted.
5. Apply metal-free all-purpose paste to all threads and set screws.
6. Align the rear panel on the inverter and hook it into the hook fitting.

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7. Insert the five upper screws of the rear panel into the threads and
tighten (TX 30, torque: 8Nm).
5x
8. Make sure that the rear panel is correctly mounted.
6.6 Mounting the Kick Plate for the Sound Absorber
The kick plate must be mounted with an additional air duct on the rear side of the inverter.
Procedure:
1. Apply metal-free all-purpose paste to all threads in the base area.
2. Position and align the kick plate for the sound absorber on the
enclosure.
3. Screw the previously retained pan head flange screws into the threads.
4. Tighten the pan head flange screws on the kick plate (TX 30, torque: 8Nm).
6.7 Mounting the Ventilation Plate
The guide rails for the ventilation plate are located in the floor area of the inverter cabinet.
Procedure:
• Slide the ventilation plate into the guide rails in the inverter cabinet. The ventilation grid in the ventilation plate
should be facing the rear panel.
☑ The ventilation plate is flush with the inverter.
✖ The ventilation plate will not go all the way in?
• Grip the ventilation plate from underneath and press the middle part upwards while sliding it in.
6.8 Mounting the Kick Plate
A kick plate with an additional noise reduction must be mounted on the front side of the inverter.
Procedure:
1. Position and align the kick plate with soundproofing material on the enclosure.
2. Screw the previously retained pan head flange screws into the threads.
3. Tighten the pan head flange screws with a suitable screw driver (TX 30, torque: 8Nm).

6 Mounting SMA Solar Technology AG
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6.9 Mounting the Silencing Baffle
With the order option "Noise reduction", a silencing baffle is delivered with the inverter. The silencing baffle must be
mounted on the rear panel of the inverter cabinet. When mounting, use the allround paste from the scope of delivery
for the bolted connections.
Mounting the rear panel of the silencing baffle
Required mounting material:
☐ 2 cylindrical screws
☐ 2 contact washers
Procedure:
1. Remove all screws from the threads for attaching the silencing baffle.
2. Position the rear panel of the silencing baffle on the rear panel of
the inverter.
3. Screw two cylindrical screws with contact washers into the middle
threads on the rear panel (torque: 8Nm).
Mounting the cover of the silencing baffle
Required mounting material:
☐ 1 cylindrical screw
☐ 3 contact washers
☐ 9 pan head flange screws
☐ 13 washers
☐ 10 hexagon nuts
Procedure:
1. Align the lid on the rear panel. Place the cover over the stud bolts.