Huayu HYH-3.6K-AC User manual

www.huayu-solar.com [e-mail] Huayu(Ningbo)New Energy Technologies Co., Ltd.
For Our Home Energy Independence.

1. Information on this Document
1.1 Validity
1.2 Target Group
1.3 Storage of the Manuals
1.4 Additional Information
1.5 Safety
1.5.1 Symbols Explanation
1.5.2 Safety Warning
2. Working Modes Introduction
3. Installations & Connection
3.1 Packing List
3.2.1 Select Mounting Location
3.2.2 Clearance Requirements
3.2.3 Mounting
3.3 Connection of AC Terminal and EPS Terminal
3.3.1 Grid Connection
3.3.2 EPS Connection
3.3.3 Battery Connection
3.3.4 Wiring the Whole System
3.3.5 Setting Safety
3.3.6 Connecting Battery Communication Cable/NTCand CTs
3.3.7 Install WIFI Module
4. Display, Setting and Operation
4.1 LCD Overview and Brief Introduction
4.2 General Information Checking and Settings
4.2.1 General Information Display
4.2.2 Start the Settings
4.2.3 Time Settings
4.2.4 Battery Settings
4.2.5 UPS Settings
4.2.6 AC Charge Settings
4.2.7 Force Discharge Settings
4.3 The Working/Warning/Fault Code Explanation
5. Start UP and Shutdown
5.1 Start-UP the HYH-3.6K-AC System
5.2 Shutdown the HYH-3.6K-AC System
6. Troubleshooting& Maintenance
6.1 Troubleshooting
6.2 Maintenance
7. Manufacturer Warranty
8. Specification
CONTENTS
About this Manual
3.2 Product Overview and Connection Overview
02
02
02
02
02
02
02
03
03
06
06
07
09
10
10
11
11
12
13
14
14
15
18
19
19
20
20
21
21
23
24
26
27
6.2.1 AC Charge Settings
6.2.2 Force Discharge Settings
30
30
28
28
28
28
29
29
30
30
31
01

02
CE Mark
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
01
1 . Information on this Document
1.1 Validity
This manual describes the assembly, installation, commissioning and maintenance of the following AC energy storage
inverter from Huayu(Ningbo)New Energy Technologies Co., Ltd.
1.3 Storage of the Manuals
1.2 Target Group
1.5 Safety
Please read and follow all the instructions and cautions on the inverter or user manual during installation,
operation or maintenance. It calls attention to a procedure or practice, which, if not correctly performed or
adhered to, could result in damage to or destruction of part or all of Huayu New Energy equipment and/or other
equipment connected to the Huayu New Energy equipment or personal injury.
5m in
1.5.1 Symbol Explanation
CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Beware of hot surface The product can become hot during operation.
Do not touch the product during operation.
NOTICE is used to address practices not related to personal injury.
Earth Ground
Inverter will be touchable or operable after minimum 5 minutes of being
turned off or totally disconnected, in case of any electrical shock or injury
About this Manual
Target Group
This manual is only intended for qualified electricians who are responsible to the installation,
commissioning and decommissioning of the inverter and system.
How to Use this Manual
The user or qualified operator should keep this manual stored carefully and accessible at any time.
Once lost this manual for some reason, the soft copy can be download from the official website of
Huayu New Energy or emailed from the service department of Huayu.
This manual is one of the most important part in the package of the inverter which describes the
installation, connection, commissioning and maintenance etc. of the inverter. Please read the
manual and related documents carefully before any work on the inverter is carried out.
Scope of Validity
This manual is applicable to following models of inverter from Huayu(Ningbo)New Energy
Technologies Co., Ltd.
HYH-3.6K-AC
This manual is for qualified personnel who is well trained and has demonstrated skills and knowledge in the
construction and operation of this device. Qualified personnel is trained to deal with the dangers and hazards
involved in installing electric devices.
Keep all relevant manuals and guidance documents from Huayu(Ningbo)New Energy Technologies Co., Ltd
in a safe place for any possible demands or usage in future.
You can find further information on special topics in the download area at
http://www.Huayu-solar.com or by asking, emailing the distributor and Huayu(NingBo)New Energy
Technologies Co.,Ltd.
1.4 Additional Information

1.5.2 Safety Warning
Any installation and operation of inverter must be performed by qualified electricians. The appliance is not to
be used by children or persons with reduced physical sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction.
Before any wiring connection or electrical operation on inverter, all battery and AC power must be disconnected
from inverter for at least 5 minutes to make sure inverter is totally isolated to avoid electric shock.
During operation, the upper lid of the enclosure and the enclosure body may become hot. Only touch the lower
enclosure lid during operation, and make sure the inverter is untouchable for children
Usage and operation of the inverter must follow instructions in this user manual, otherwise any injury or damage
and warranty is not warranted by Huayu New Energy.
Do not open inverter's cover or change any components, otherwise the warranty commitment for the inverter will
be invalid.
DC differential currents from battery are created , thus an external RCD (type A) can be used(30mA) in the AC
output of the HYH-3.6K-AC. As the HYH-3.6K-AC used with PV inverters in the system, so the PV inverters are
creating residual current too, in order to prevent unwanted triggering during operation, we recommend that the
rated residual current of the RCD has to be min 50mA.
In Australia, the inverter internal switching does not maintain neutral integrity, which must be addressed by
external connection arrangements like in the system connection diagram for Australia on page 8
2. Working Modes Introduction
MODE 1:
It is applied in the micro-grid system. During the day, the energy generated by the diesel generator is stored
in the battery, and the power is supplied to the load from the network at night. It is suitable for the micro-grid
environment that needs quiet electricity at night. In this mode, 10 units can be connected in parallel with a
power of 36kW.
HYH-3.6K-AC MICRO-GRID MODE:
0403
This mode needs special hardware
versionfirmwa and re version, please
contact to Huayu(Ning Bo)New Erengy
Technologies Co.,Ltd.
AC-Coupled energy storage inverter is designed for indoor and outdoor usage with existed
grid-connected solar power systems want to retrofit with batteries to store energy. It has five modes to
satisfy the PV+ Storage system
When PV power is sufficient enough with excess power
rested after supplying the loads, the excess power will
be firstly used to charge the battery by HYH-3.6K-AC,
if there is still power rested after that then it will be feed
-in to the grid.
When the PV power is not sufficient enough,
HYH-3.6K-AC discharges the battery power to
the household load, so that the power which is
taken from the grid as little as possible.
When grid power fails, immediately, the HYH-3.6K-AC
discharges the battery power to the important household
load using uninterrupted power supply technology which
will guarantee the power supply stability and continuously
of important loads. (Notice that it's required to enable the
UPS function to activate this working mode)
Battery can be charged by grid power (AC charge mode)
by enable relevant functions and make right settings
according to the real demands on the AC charge function
via LCD operation, monitoring website or the APP.
MODE 3: MODE 4:
HYH-3.6K-AC can be set to “Force Discharge” mode,
no matter PV inverter output energy is sufficient or not,
the HYH-3.6K-AC discharges the power to the grid and
Time &power &SOC limit can be set flexibly via LCD
operation, monitoring website or APP.
MODE 5:
MODE 2:
HYH-3.6K-AC HYH-3.6K-AC
HYH-3.6K-AC
HYH-3.6K-AC
HYH-3.6K-AC
HYH-3.6K-AC HYH-3.6K-AC
HYH-3.6K-AC

EPS side can’t connect to Grid
Without the micro-grid mode version hardware and
firmware, On-Grid or EPS side should not be connected
to any AC generator.
3. Installations & Connection
3.1 Packing List
Please check to make sure all the components as below are in good condition.
0605
Qu ick In stall ation
US ER MAN UAL
Batte ry
1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 16
Forbidden System Connections
Without the micro-grid mode version hardware and
firmware, EPS side should not be paralleling connected.
If it is 48V pack, and no incompatible batteries could be
setting as lead-acid mode in LCD, website or the APP
HYH-3.6K-AC HYH-3.6K-AC HYH-3.6K-AC
HYH-3.6K-AC HYH-3.6K-AC