Qcells Q.HOME CORE A5 User manual

USER MANUAL
Q.HOME CORE
A5

Table of Contents
1 Information in this Manual 4
1.1 About This Manual 4
1.2 Target Group 4
1.3 Symbols Used in This Manual 4
2 Safety 5
2.1 Intended Use 5
2.2 Safety Precaution 5
2.3 Earth Fault Alarm 6
2.4 Product Safety Labels 6
2.5 Disposal 7
3 Product Description 8
3.1 Q.VOLT Overview 8
3.2 Q.SAVE Overview 9
3.3 Specifications 10
4 Power On/Off 12
4.1 Turning On Q.HOME CORE 12
4.2 Using the Dark Start button 12
4.3 Turning Off Q.HOME CORE 13
5 LED Status 14
6 Using the Q.OMMAND HOME App 15
6.1 Getting Started 15
6.2 Main Menu Overview 17
6.3 Home Tab 17
6.4 Products Tab 18
6.5 Energy Tab 20
6.6 Changing the User Information 20
6.7 Viewing the Installation Information 21
6.8 Light Mode / Dark Mode Setting 21

7 Operating Mode 22
7.1 ON-Grid Mode 22
7.2 Off-Grid Mode 23
7.3 Seamless Transfer 24
8 Features 25
8.1 Protection 25
8.2 Power Derating 25
8.3 Overload Operation 25
8.4 Power Quality Response 26
8.5 Battery Management 27
8.6 Demand Response Modes (DRMS) 28
8.7 Dark Start 28
9 Maintenance 29
9.1 Cleaning the Cover 29
10 Full Warranty 30

4
1 Information in this Manual
1.1 About This Manual
This is the installation manual for Q.HOME CORE A5. Please read this installation and user manual carefully
before installing and operating Q.HOME CORE A5. It contains important safety instructions. The warranty will be
void if you fail to follow the instructions in this manual.
1.2 Target Group
Electricians and qualified technicians who are allowed to install and to connect electrical systems.
1.3 Symbols Used in This Manual
WARNING
This symbol indicates a hazardous situation which could result in death or serious injury,
if not avoided.
CAUTION
This symbol indicates a hazardous situation which could result in minor or moderate
injury, if not avoided.
Prohibited.
Note This indicates valuable tips for installation of the product.

5
2 Safety
The safety section may not include all regulations for your locale; personnel working with Q.HOME CORE A5
must review applicable federal, state and local regulations and the industry standards regarding this product.
2.1 Intended Use
Q.HOME CORE A5 is designed for residential use only. It should not be used for commercial or construction
area. It is a single-phase, Grid-connected system of solar energy sources and Li-Ion Battery energy storage.
Q.HOME CORE A5 uses solar energy power connected to the input/output terminal installed on the side of the
device in order to:
■charge the Li-Ion Battery energy storage,
■provide a supply to the household load, and
■convert direct current (DC) electricity of the Battery to alternating current (AC) to discharge as household
single-phase load or electric system.
This device should not be used for any purpose other than the purpose described in this installation manual.
Any substitute use of this device, random change in any of its parts, and use of components other than sold or
recommended by Qcells will nullify the product’s guarantee.
For example, Qcells Li-Ion Battery energy storage should not be replaced by other manufacturer’s Battery
storages. For further information on proper use of this device, contact the Qcells Service-Hotline.
2.2 Safety Precaution
The following safety precautions and the warning messages described in this section must be observed. If
any of the following precautions are not fully understood, or if you have any questions, contact the customer
support for guidance.
WARNING
■All work on the ESS and electrical connections must be carried out by qualified
personnel only.
■High voltages in power conditioning circuits. Lethal hazard of electric shock or
serious burns. Wear rubber gloves and protective clothing (protective glasses and
boots) when working on high voltage/high current systems such as the inverter and
battery systems.
■This product provides a safe source of electrical energy when operated as intended
and as designed. But a potentially hazardous circumstance such as excessive
heat or electrolyte mist may occur due to improper operating conditions, damage,
misuse and/or abuse.
■Do not connect or disconnect PVs, batteries, and grid connectors with the power
on. Otherwise, it may generate electric arcs or sparks, causing fire or injury.
■Do not open the enclosure while the inverter is operating. Touching inner
components under running condition may lead to electric shock, causing death or
serious injury.
■Before maintenance, turn off the equipment for at least 5 minutes and strictly
comply with the safety precautions stated in this manual.

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Safety
CAUTION
■This product is intended to be used for PV source inputs and residential home grids
(AC 230 V). If not used as intended, the protection provided by the equipment may
be impaired.
■This product is designed appropriate for two-PV string structure. Therefore,
the PV string 1 and PV string 2 must be connected to PV input 1 and PV input 2,
respectively. Do not split one PV string output for connecting it into the PV input
terminal 1 and input terminal 2.
■After disconnecting the inverter from the battery pack or PV, wait 5 minutes to
discharge the inverter.
■Do not touch the PV cable when the product is connected to the PV arrays. When
the photovoltaic array is exposed to light, it supplies DC voltage to the product.
■In case of short circuit, high-voltage components inside the inverter may influence
the product or other properties. Cover the product or take other precautions to
prevent metal objects from entering inside during installation and wiring.
2.3 Earth Fault Alarm
When an earth fault occurs, the inverter stops operation and the buzzer operates for 2 minutes, and the earth
fault code is notified to the installer and administrator.
Note: This feature is only supported on models released in Australia.
2.4 Product Safety Labels
Wear eye protection at all times
(installation, maintenance, etc.)
Follow the instruction in this manual for
service and replacement.
Caution: Risk of Electric Shock
Alternating current (AC) and direct current (DC) sources are connected to this
device. To prevent risk of electric shock during installation or maintenance,
ensure that all AC and DC connections are disconnected.
Caution: Hot Surface
Metallic parts of enclosure may be hot during operation.
Caution: Risk of Electric Shock
Hazardous voltage is still present 5 minutes after all power sources have
been disconnected. Wait for at least 5 minutes before maintenance to
prevent electric shock.
Warning: Explosion
Do not expose to heat or flame. Keep away from flammable substances.
Warning: Corrosive Substances Leaking
Do not disassemble or modify the battery. Otherwise, corrosive substances
may leak.

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Safety
2.5 Disposal
1 Disposal of Q.VOLT
■When this crossed-out wheeled bin symbol is attached to a product, it means the
product is covered by the European Directive 2002/96/EC.
■All electrical and electronic products should be disposed of separately from
the municipal waste stream via designated collection facilities appointed by the
government or the local authorities.
■The correct disposal of your old appliance will help prevent potential negative
consequences for the environment and human health.
■For more detailed information about disposal of your old appliance, please contact
your city office, waste disposal service or the shop where you purchased the
product.
2 Disposal of Q.SAVE
■When this crossed-out wheeled bin symbol is attached to batteries/accumulators of
your product, it means they are covered by European Directive 2006/66/CE.
■This symbol may be combined with chemical symbols for mercury(Hg),
cadmium(Cd) or lead(Pb) if the battery contains more that 0.0005% of mercury,
0.002% of cadmium or 0.004% of lead.
■All batteries/accumulators should be disposed separately from the municipal waste
stream via designated collection facilities appointed by the government or the local
authorities.
■The correct disposal of your old batteries/accumulators will help to prevent
potential negative consequences for the environment, animal and human health.
■For more detailed information about disposal of your old batteries/accumulators,
please contact your city office, waste disposal service or the shop where you
purchased the product.

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3 Product Description
3.1 Q.VOLT Over view
BAT IN
BMS IN
F
5
6
8
13
9
10 11 12
7
3
2
1
4
1Front cover 8Communication port
2LED indicator 9BMS Connector
3Inner cover 10 USB Port
4Wiring cover 11 LAN / DRM port
5Battery power connector 12 Wi-Fi / LTE Dongle port
6PV switch 13 Dark Start switch
7Grid and Load port
Note
For information about how to open the covers, refer to the installation manual.

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Product Description
3.2 Q.SAVE Overview
7 8
9
2
1
3
5 6
4
1Front cover 6BMS board
2Inner cover 7Battery DC Switch
3Wiring cover 8Battery Power Connector
4Battery module 9BMS Connector
5Relay board

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Product Description
3.3 Specifications
GENERAL PRODUCT INFORMATION
Dimensions Inverter Module /
Battery Module (W × H × D) [mm] 460 × 700 × 221, 238 (From Wall)
Weight Inverter Module / Battery Module [kg] 33.9 / 61.1
Operating Temperature Range [°C] Q.VOLT: −20 to +60 / Q.SAVE: −10 to +45
Relative Humidity [%] 4 to 100 (Condensing)
Protection Degree / Class IP65
Mounting Wall-Mounted or Floor-Mounted Options
Max. Operation altitude [m] 2,000
Cooling Method Natural air cooling
Product Warranty / Performance Warranty 15 / 15 years
Noise Emissions ≤ 40 dB (A) @ 1 m
Over Voltage Category OVC II (DC) / OVC III (AC)
Communications LAN, RS485, CAN, Wi-Fi (optional), LTE (optional)
Remote Monitoring Web, Mobile & App
Software Update Online update
Energy Management System Integrated
Country of Manufacturer Republic of Korea
GRID DATA (AC)
Max. Apparent Power / Rated Output Power [kVA / kW] 5 / 5
Nominal Voltage / Range [V] 230 / 180 to 260
Nominal Grid Frequency / Range [Hz] 50, 60 / −5 Hz to +5 Hz
Feed-in Phase / Connection Phase Single / Single
Nominal Current / Max. Current /
Max. Over-Current Protection [A] 21.7 / 25 / 30
Power Factor Range 0.8 lagging to 0.8 leading
Total Harmonic Distortion [%] ≤ 5
BACKUP POWER OUTPUT (ALTERNATING CURRENT)
Connection Phase Single
Rated Apparent Power /
Rated Power (Only Battery) [kVA / kW] 3.3 to 4.5 / 3.3 to 4.5 @ 1 Battery Pack,
5 / 5 @ 2, 3 Battery Pack
Rated Apparent Power /
Rated Power (With PV) [kVA / kW] 5.0 / 5.0 (max)
Rated Voltage [V] 230
Rated Frequency [Hz] 50, 60
Switch over Time to Backup Power less than 0.1 seconds
Overload support
30 sec for 5.0 - 5.5 kVA, 20 sec for 5.5 - 6.0 kVA,
10 sec for 6.0 - 6.5 kVA
@ 2, 3 Battery Pack and Off-grid