Ferroamp 7-14kW Energy Hub Wall Instruction Manual

Ferroamp 7-14kW Energy Hub Wall

Product Information

The EnergyHub Wall is a 14 kW power distribution unit manufactured by Ferroamp AB. It is designed for electrical installations and features a four-pole contact for DC power, a five-pole contact for AC power, and three current transformers (CT clamps) for monitoring purposes. The unit comes with a CT connection cable of 10 meters in length. The product dimensions are provided in millimeters.

Product Usage Instructions

1. Read the entire installation manual carefully before starting any work to ensure proper installation and operation of the EnergyHub Wall.
2. Ensure that you have received all the included articles mentioned in the manual, including the EnergyHub 14 kW unit, mounting plate, locking screw, CT clamps, CT contact, CT connection cable, installations manual, commissioning guide, installations protocol, and warranty booklet.
3. Make sure to follow all the warnings and caveats mentioned in the manual to ensure safety and avoid any potential dangers.
4. The electrical installation should be carried out by a qualified installer in accordance with the applicable electrical standards and safety regulations. If you need assistance or service, contact an authorized dealer.
5. Do not open the EnergyHub Wall unit unless you are an authorized personnel. Any servicing or repairs should be done by professionals.
6. Before handling any contacts, ensure that the product is turned off and wait for the defined time as mentioned in the manual. This is necessary to allow the stored energy in the DC capacitors to dissipate.
7. Do not connect any devices to the DC power network while it is energized to avoid any risk of electric shock or arcing.

Introduction

In this booklet you will find instructions for installing your EnergyHub Wall 14 kW. Be sure to read the instruction carefully to avoid unnecessary errors.

Included articles

Warnings and caveats
EXHORTATION! Read the entire installation manual before starting work.
EXHORTATION! Use this product only according to the specified instructions to avoid possible dangers.
WARNING: Energy Hub Wall must not be opened by unauthorized personnel. Contact a dealer if you need service.

• The electrical installation shall be carried out by a qualified installer and in accordance with the applicable electrical standards and safety regulations.
• You must not connect devices to the DC power network when it is energized.
• Risk of electric shock and arcing if the product is not handled in accordance with the manual’s instructions.
• The product contains charged capacitors. A minimum of 5 minutes is required before these are discharged to a safe level.
• Do not use the product if you suspect damage or loose objects inside the product. Have it inspected by qualified personnel before use.
• Do not use the product if all or part of the enclosure is gone, for example, during repair, do not touch exposed parts.

NOTE: The warranty does not apply if the product has been modified or not installed in accordance with this manual.

Security alert explanations

•   The lightning symbol in an equilateral triangle warns of dangerous electrical voltage.
• The exclamation mark in an equilateral triangle is intended to warn the user that negligence of this information can be life-threatening!
• The exclamation mark in a circle is intended to inform the user that neglect of this information may be associated with bodily harm and / or damage to the product.
• The time symbol indicates that one must wait the defined time after the product is turned off before it is safe to handle contacts. This is due to stored energy in DC capacitors

Dimensions
All dimensions are in millimeters unless otherwise stated.

Connections

1. Gridconnection, AC
2. DC grid connection, DC
3. Relay connection (not used)
4. Current Transformers connection (CT)
5. CAN-bus connection
6. Etherner connection
7. USB connection
8. Reset button for display unit

Installation

The installation section will take you through the entire process step by step on how to install an EnergyHub Wall 14 kW.
NOTERA! Ferroamp does not accept responsibility for damage caused to the product due to improper or negligent installation.
NOTERA! Ferroamp recommends that end sleeves be used for all connections with multi-wire conductors.

• Don’t work alone. In an emergency, the presence of another may be necessary!
• The electrical installation must comply with national/local laws and regulations, appropriate standards, and applicable requirements from recognized organizations.
• The electrical installation must be carried out by a qualified installer and in accordance with the applicable electrical standards and safety regulations
• Ensure that the location of the EnergyHub Wall never constitutes an obstacle to emergency evacuation, in accordance with national and local legislation.

Necessary tools

• Screwdrivers:
  • Torx – 30
  • Torx – 20
  • Flat – 1×5 mm
• Cable peelers and cable scissors (1 – 10 mm²)

Placement

NOTE! Ferroamp is not responsible for installations that do not meet the criteria listed below.
Make sure that the location you choose for installation meets the following criteria:

• Indoor environment with protection from direct sunlight and rain
• The space is well ventilated (if the EnergyHub Wall is placed in a cabinet or similar enclosure, mechanical ventilation must be provided to ensure sufficient heat dissipation)
• The ambient temperature must not be less than 0 °C and not exceed 45 °C
• The environment should be non-condensing, the relative humidity should be below 95%
• Wall and fastening material must be able to carry at least 30 kg
• When assembling, it must be taken into account that the product can reach temperatures up to 70°C.
• Make sure to have free space around EnergyHub in as shown in the following figures:

Attach the mounting plate to a place that meets the criteria described above. Flatten the side against the wall, see figure below. Lift up your EnergyHub and hang it on the intended jumper, the top of the mounting plate, see figure below. Make sure it sits securely before letting go. With the two included locking screws, lock your EnergyHub to the bottom plate of the mounting plate. Now it’s in place!

Connection to the switchboard
NOTERA! To calculate the correct cable dimension, use Ferroamp’s cable calculator available on www.ferroamp.se under the support tab.
Connect the EnergyHub Wall to the building’s substation as shown in the figure below. Secure with B20 fuses for Energyhub 14 kW.

(1) Main fuse, (2) Main circuit breaker, (3) distribution cabinet,(4) Fuse for EnergyHub, and (5) Circuit breaker for EnergyHub

AC contact
The five-pole connector should be used to connect the EnergyHub to the AC network. Proper connection is marked on the connector. See image below for schematic image:

The picture above shows how the AC cable should be connected, for orientation of the connector see below.

1,2,3 represents the phases. However, please note that the phase sequence does not affect the function.

• Make sure that the ground and neutral conductor from the AC network are connected to the correct positions in the connector. It is recommended to put an external working switch on the incoming AC cable in order to easily turn off the system.
• Make sure the AC plug is properly plugged in before energizing the EnergyHub.

DC-contact (DC grid connection)
Warning, the Ehub has capacitors on the DC side that can hold charge even after the device is disconnected from the AC side. Wait at least 5 minutes after turning off the device before handling the DC connector
NOTERA! If the system will not have a DC grid, you can skip this section (e.g. if the system is only to be used for phase balancing and measurement/data collection).
NOTERA! The dc grid cable does not need to have an M-conductor if it is not to be a Powershare installation (An interconnected DC voltage network between EnergyHubs).

1. Bring out the installation kit for the DC connector. The installation kit includes:
2.  1 x 4-pin hand contact
3. 1 x two-piece contact housing
4.  1 x strain relief rail
5. 2 x Phillips Screw (11mm) for Rail
6.  2 x flatscrew (18mm)
7. Contacts the DC connector as shown in the figure below. Use end sleeves.

NOTE: The M conductor is contacted only when you connect several EnergyHubs with each other.

1. Make sure that all conductors are screwed on.
2. Make sure that the strain relief is around the outer cable as shown in the figure on the right marked with 2.
3. Make sure the EnergyHub is turned off before plugging in the DC connector.
4. Screw in the fixing screws located on the DC connector so that the DC connector cannot be detached without tools.
   • Make sure that the DC voltage network is plugged in at the correct positions in the connector.
   • If it is a Powershare system, it is recommended to put an external switch on the DC power grid.

Current transformers (CT) – connection and placement

• Route the cables from the current transformers through the cable entry, the length of the cable is 10 m.

NOTERA! To extend the cable, you need to use a twisted pair cable. The total loop resistance must be below 10 Ohms. See the table below for the ratio of conductor area to maximum cable length between the current transformers and the Energy Hub.

• Connect the CT cable to the CT connector as shown in the following figure. From left to right; white, red, blue, black, yellow and green.
• Ensure connection and any cable extension is correct by measuring the resistance between the pairs (red/white, black/blue, green/yellow). All pairs should show similar resistance when properly installed.
• Attach the contact housing. Make sure that the strain relief in the contact housing attaches around the insulation of the CT cable.
• The current transformers (CT) must be placed on the incoming AC cable of the building. A clamp around each phase, L1, L2 and L3. The order and direction of the current transformers does not matter as this is detected automatically. The important thing is that each phase has a current transformer around it. They must be placed between (B) and (C). See the figure below
  • Main fuse
  • Electricity meter
  • Distribution cabinet)
  • EnergyHub-system
  • One and three phase loads

NOTE! The current transformers do NOT sit between (C) and (D) or between (C) and (E).

• Be careful when the current transformers are mounted around the cable, it is important that the clamp closes properly, it should not be possible to loosen them without lifting the unloading latch.

Ethernet-connection
To enable reporting of measurement data and updating of software in EnergyHub, a working connection to the Internet via Ethernet is required.

The following requirements apply to the internet connection:

1. IPv4 address as well as working DNS server and NTP server are assigned by using DHCP.
   • Outbound traffic to the internet must work flawlessly. Information about specific ports and more details can be found on www.ferroamp.com in the knowledge base.

References

• Hem - Ferroamp
• Hem - Ferroamp
• Hem - Ferroamp
• Hem - Ferroamp

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