Sermatec SMT-10K-TL-TH Reference manual

Basic Introduction to
Hybrid Inverter SMT-10K-
TL-TH

2021/8/19 www.sermatec-ess.com 2
Product Description
Composing PV, Battery, Load and Grid together to realize high efficient storage solution
for household rooftop users.
Could be set to 6kW, 8kW, 10kW.

2021/8/19 www.sermatec-ess.com 3
CONTENT
•Product Description •Inverter Overview
•Warranty
•System Diagram •Technical Parameters
•Installation •Working Modes
•Maintenance

2021/8/19 www.sermatec-ess.com 4
Inverter Overview
1. PV Connector
2. PV Switch
3. Battery Connector
4. GPRS Module Interface
5. WiFi Antenna Interface
6. Communication Interface
7. Waterproof Vent Valve
8. AC Back-up Load Connector
9. PE Connection Point
10.AC Grid Connector
11.Indicator LED

2021/8/19 www.sermatec-ess.com 5
Technical Parameters

2021/8/19 www.sermatec-ess.com 6
Technical Parameters

2021/8/19 www.sermatec-ess.com 7
Installation
The Hybrid Inverter can only be installed by personnel who have received training in the Hybrid
Inverter and have a good knowledge of the hybrid Inverter. During the installation process, always
observe the safety precautions and local safety regulations before the catalogue of this manual.
Do not operate or maintain the inside of the system during thunderstorms or wet weather to
prevent electric shock. If operating inside the Hybrid Inverter, make sure the system is not
powered on.
Safety Cautions

2021/8/19 www.sermatec-ess.com 8
Installation
Unpacking inspection
Unpack the package,
review the check list.

2021/8/19 www.sermatec-ess.com 9
Installation
Cable and Air switch preparation
Note: Be sure of all cables’ withstand
voltage, temperature-resistance equaling
to or better than the
recommended model, and complying with
relevant regulation of electrical industry.
Selection of switch
Installation Kit(Tools)
1. Electric drill (drilling bit: φ8mm)
2. Screwdriver (Philips screwdriver: M3、M6; Flat head screwdriver: M3)
3. Wire stripper(4~6mm² )
4. Wire crimper 1 (Model: H4TC0001; Manufacturer: Amphenol)
5. Wire crimper 2( OT terminal, 4~6 mm² )
6. Open-end wrench (Model: H4TW0001; manufacturer: Amphenol)
7. Multimeter

2021/8/19 www.sermatec-ess.com 10
Installation
Installation requirements
1. Wall bracket Installation
1) It is necessary to ensure that the installation position is flat and the thickness
of the whole wall exceeds 100mm.
2) Ensure the installation wall is vertical to the ground. If it is sloping , tilt angle
is only allowed to be less than 15°.
3) Ensure installation wall is solid enough to meet the requirements of load
bearing for hybrid inverter.
4) The mounting position is supposed to avoid direct sunlight.
2. Installation space requirements
Product installation position, leave 300 mm of space for maintenance and heat
dissipation left, right and front

2021/8/19 www.sermatec-ess.com 11
Installation
Mounting
1.Mark mounting hole on the wall Drill hole with 8mm diameter of bit. Ensure a depth of 80mm.
2.Hammer expansion tube into the wall Mount bracket on the wall, keep aligned with the holes.
3.Mount the Sermatec hybrid inverter on the bracket.

2021/8/19 www.sermatec-ess.com 12
Installation
4.Secure the inverters with M6 screw on the right side.
5.Install anti-theft lock if necessary ( Option, equipped by user).

2021/8/19 www.sermatec-ess.com 13
Installation
Electrical Connection
Hybrid Inverter System Connection
Diagram
1. PV1 Connector
2. PV2 Connector
3. PV Switch
4. Battery Connector
5. GPRS Module Interface
6. WiFi Antenna Interface
7. DRED Interface
8. Communication Interface
9. Waterproof Vent Valve
10.AC Back-up Load Connector
11.PE Connection Point
12.AC Grid Connector

2021/8/19 www.sermatec-ess.com 14
Installation

2021/8/19 www.sermatec-ess.com 15
Installation
The recommended connected panels is to exceed 10%-20% of standard number
Connect PV cable
1. Make sure all switches are at closed position before electrical connection.
2.Only qualified installation person can implement installation of AC and DC input cable.
It is strictly prohibited to connect positive pole( PV1+、PV2+、BAT+) and negative (PV1-、PV2-、BAT+)
reversely or incorrectly. Otherwise it would affect normal operation, or even cause damage and other serious
consequence.
The length of external cable to PV side and battery side is suggested to be less than 30m.
The minimum insulation resistance to ground of PV panels must exceed 40k, there is a risk of shock hazard if
the requirement of minimum resistance is not met.

2021/8/19 www.sermatec-ess.com 16
Installation
STEP 1: Check and verify PV rotary switch is at OFF position.
STEP 2: Follow the requirement to cramp and connect H4 connector to cable which
you can find from installation kits.Crimp the H4 connector to the cable as required.
STEP 3: Use multimeter to measure PV side voltage and verify ,correct polarity, ensure
open-circuit voltage is less than 1000V.

2021/8/19 www.sermatec-ess.com 17
Installation
Connect BAT cable
Batteries need to comply with local regulations.
Suggestion: If the battery is to be installed indoor for details please refer to battery
Manufacture’s user manual.
Suggestion: Batteries must be installed with a distance to each other, details
please refer to battery manufacture’s user manual.
As for the number of cells used, it will be decided by customer’s choice, the choice
must comply with the followed requirement: the voltage is 200-800V.

2021/8/19 www.sermatec-ess.com 18
Installation
STEP 1:
Crimp the H4 connector to the cable as required
Battery cable size: 6mm²
STEP 2:
Use multimeter to measure Battery side voltage
and verify correct polarity, ensure open-circuit
voltage is less than 800V.
STEP 3:
Connect positive and negative terminals to the
corresponding interfaces.

2021/8/19 www.sermatec-ess.com 19
Installation

2021/8/19 www.sermatec-ess.com 20
Installation