Installation / User Manual APsystems QS1 Microinverter Rev 1.1 (For USA) ALTENERGY POWER SYSTEM Inc. usa.APsystems.com APsystems America 600 Ericksen Ave NE, Suite 200 Seattle, WA 98110 TEL: 844-666-7035 EMAIL: info.usa@APsystems.com Please scan the QR code to get mobile app and more support to help the installation.
Table of Contents 1.Important Safety Instructions......................................................................................................................... 2 1.1 Safety Instructions.......................................................................................................................................... 2 1.2 Radio Interference Statement........................................................................................................................ 3 1.
1.Important Safety Instructions This manual contains important instructions to follow during installation and maintenance of the APsystems Photovoltaic Grid-connected Inverter (Microinverter).
1.Important Safety Instructions 1.2 Radio Interference Statement FCC/IC Compliance ： The equipment can comply with the limits for a class B digital device,pursuant to part 15 of the FCC Rules(ICES-003), which are designed to protect against harmful interference in a residential installation. The equipment could radiate radio frequency energy and this might cause harmful interference to radio communications if not following the instructions when installing and using the equipment.
1.Important Safety Instructions 1.3 Symbols replace words on the equipment, on a display, or in manuals Trademark. Caution, risk of electric shock. Caution, hot surface. NOTICE, danger!This device directly connected with electricity generators and public grid. Person adequately advised or supervised by an electrically skilled person to enable him or her to perceive risks and to avoid hazards which electricity can create.
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2.APsystems Microinverter System Introduction This integrated system improves safety; maximizes solar energy harvest; increases system reliability, and simplifies solar system design, installation, maintenance, and management. APsystems Microinverters maximize PV energy production Each PV module has individual Maximum Peak Power Tracking (MPPT) controls, which ensures that the maximum power is produced to the utility grid regardless of the performance of the other PV modules in the array.
3.APsystems Microinverter QS1 Introduction The APsystems QS1 Microinverters connects with the single-phase grid, and can also use multiple APsystems Microinverters in the form of single-phase grid to achieve three-phase grid, and operates with most 60 and 72 cell PV modules. Contact APsystems Customer Support for checking compatibility.For more information, please see the Technical Data page (p.
4.APsystems Microinverter System Installation A PV system using APsystems Microinverters is simple to install. Each Microinverter easily mounts on the PV racking, directly beneath the PV module(s). Low voltage DC wires connect from the PV module directly to the Microinverter, eliminating the risk of high DC voltage. Installation MUST comply with local regulations and technical rules. ① Perform all electrical installations in accordance with local electrical codes.
4.APsystems Microinverter System Installation 4.3 Installation Procedures 4.3.1 Step 1 - Verify the grid voltage to match with microinverter rating 4.3.2 Step 2 - The AC bus distribution a. The AC bus is arranged at the proper position of the microinverter. b. One end of the AC bus access junction box into power grid. c. Wire the conductors of the AC bus: L - BLACK ; L - RED .
4.APsystems Microinverter System Installation 4.3.5 Stpe 5 - Connect the APsystems microinverter to AC bus cable Push the microinverter AC connector to the trunk cable connector. Listen for the "Click". Click Figure 3 Best Practice: Use the Bus Cable Unlock Tool of AC Bus to split the connectors. Figure 4 AC connector interface as follows. Cover any unused connectors with Bus Cable Y-CONN Cap to protect the connectors. Figure 5 Figure 6 4.3.
4.APsystems Microinverter System Installation 4.3.7 Step 7 - Connect APsystems Microinverters to the PV Modules Figure 8 If the DC connector is not connected with the PV module,you need to remove the dust cap,and cover the protection cap. When plugging in the DC cables, the microinverter should immediately blink green three times. This will happen as soon as the cables are plugged in and will show that the microinverter is functioning correctly.
4.APsystems Microinverter System Installation APsystems Microinverter&Energy Communication Unit Warranty Card The APsystems Installation Map is a diagram of the physical location of each microinverter in your PV installation. Each APsystems microinverter has a removable serial number label located on the mounting plate. Pee l the label and affix it to the respective location on the APsystems installation map.
5.APsystems microinverter system operating instructions To operate the APsystems microinverter PV system: 1. Turn ON the AC circuit breaker on each microinverter AC branch circuit. 2. Turn ON the main utility-grid AC circuit breaker. Your system will start producing power after a two-minute waiting time. 3. The units should start blinking green every 2 seconds five minutes after turning on the AC circuit breaker. This means they are producing power normally, but have not yet connected to the ECU.
6.Troubleshooting Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly: 6.1 Status Indications and Error Reporting 6.1.1 Start up LED One quick red light followed by three short green blinks when DC power is first applied to the Microinverter indicates a successful Microinverter startup. 6.1.2 Operation LED Flashing Slow Green (10 sec. gap) - Producing power and communicating with ECU Flashing Fast Green (2 sec.
6.Troubleshooting 6.2 Troubleshooting a non-operating APsystems Microinverter There are two possible overall areas of trouble: A. The Microinverter itself may be having problems. B. The Microinverter itself is working fine but it is having trouble communicating with the ECU. The items below refer to Microinverter issues, not communication issues (addressed in the ECU manual). A quick way to tell whether the issue is the Microinverter or communication problem with the ECU: 1.
7.Replace a microinverter Follow the procedure to replace a failed APsystems Microinverter A. 1. 2. 3. 4. Disconnect the APsystems Microinverter from the PV Module, in the order shown below: Disconnect the inverter AC connector from the AC Bus. Disconnect the first AC connector in the branch circuit. Disconnect the PV module DC wire connectors from the microinverter. Remove the Microinverter from the PV array racking. B. Install a replacement Microinverter to the rack.
8.Technical Data ①. Be sure to verify the voltage and current specifications of your PV module match with those of the Microinverter. Please refer to the datasheet or usermanual which can be download from APsystems website www.APsystems.com. ②. You must match the DC operating voltage range of the PV module with the allowable input voltage range of the APsystems Microinverter. ③.
8.1 QS1 Microinverter Datasheet Region Model Input Data (DC) USA QS1-NA MPPT Voltage Range 22V-48V Operation Voltage Range 16V-55V Maximum Input Voltage 60V Startup Voltage 20V Maximum Input Current 12A×4 Maximum DC short circuit current 15A×4 Maximum Continuous Output Power 1200W Nominal Output Voltage/Range 240V/211V-264V Adjustable Output Voltage Range 150V-280V Nominal Output Current 5A Nominal Output Frequency/Range 60Hz/59.3Hz-60.
8.1 QS1 Microinverter Datasheet Note 1: Utility Interconnection Voltage and Frequency Trip Limits and Trip Times Voltage and frequency limits for utility Interaction Simulated utility source Maximum time (sec) (cycles) at 60 Hza Condition Voltage (V) Frequency (Hz) before cessation of Trip time accuracy current to the simulated utility A < 0.50 Vnor Rated 160ms +/-80ms B 0.50 Vnor ≤ V < 0.88 Vnor Rated 1000ms +/-200ms C 1.10 Vnor < V < 1.20 Vnor Rated 1000ms +/-200ms D 1.
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10.QS1 Accessory 10.1Wiring Diagram 8.AC Connector ( Male ) 9.AC Connector ( Female ) 5.Bus Cable Unlock Tool 1 . Bus Cable Grid 4.Bus Cable Y - CONN Cap 3.Bus Cable End Cap 10.DC Extension Cable 6.DC Male Connector Cap 7.DC Fem ale Connector Cap 2.AC Branch Extension Cable 11.
10.2Accessories Summary Category 1 2 3 4 5 6 7 8 9 10 11 Bus Cable （Mandatory） AC Branch Extension Cable （Optional） Bus Cable End Cap （Mandatory） Bus Cable Y-CONN Cap （Optional） Bus Cable Unlock Tool （Mandatory） DC Male Connector Cap （Optional） DC Female Connector Cap （Optional） AC Connector (Male) （Optional） AC Connector (Female) （Optional） DC Extension Cable （Optional） Energy Communication Unit（Optional） Part NO.
APsystems Microinverter &Energy Communication Unit Warranty Card The APsystems Installation Map is a diagram of the physical location of each microinverter in your PV installation. Each APsystems microinverter has a removable serial number label located on the mounting plate. Peel the label and affix it to the respective location on the APsystems installation map.
