MODEL JH-3500U Solar Power Conditioner INSTALLATION & OPERATOR’S MANUAL JH-3500 ) Grid - Interactive 1-Phase Inverter for Photovoltaic System Ver.1.0 Page • Notice for Users in the USA ................................. i FCC Statement ....................................................... i • IMPORTANT SAFETY INSTRUCTIONS ............... ii • Features ................................................................. 1 Outline of Grid - Interactive Home PV system ........
Notice for Users in the USA FCC Statement WARNING - FCC Regulations state that any unauthorized changes or modifications to this equipment not expressly approved by the manufacturer could void the user’s authority to operate this equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important safety instructions for JH-3500U that shall be followed during the installation and maintenance of the solar power conditioner. To reduce the risk of electrical shock, and to ensure the safe installation and operation of the solar power conditioner, the following words appear throughout this manual to inform you of or alert you something may cause dangerous situation or safety instructions must be followed.
Features Standard features of the solar power conditioner are: • High output power inverter with HF transformer. The solar power conditioner has a maximum output power of 3.5kW at ambient temperatures up to 40°C. The maximum input from PV array is 4.5kW. And the solar power conditioner is equipped with a high frequency (HF) transformer to isolate the PV array and the grid. • Maximum power point tracking function on Multi-PV strings. A maximum 3 PV strings can be input to the solar power conditioner.
Outline of Grid-Interactive Home PV System The home PV system is a product for grid connection that includes the following components: PV modules that convert light into DC electricity, a solar power conditioner that changes DC into AC and blends the power with the utility, a DC disconnect to break the connection between the PV modules and the power conditioner, and an AC disconnect to break the connection between the load center and the power conditioner.
Required Condition for Grid-connected Operation The solar power conditioner meets the following requirements for connection to the grid: 1. Islanding Protection The power conditioner will shut down if the power from the grid becomes abnormal or fails. This will provide safety to the people working on power lines and protect the home circuits and power conditioner. The solar power conditioner continually monitors the voltage and frequency of the grid through an internal control circuit.
Overview of Each Component Solar Power Conditioner 192 600 450 450 11.
Solar Power Conditioner Display 51.6 45.6 136.8 83.5 7.0 116.6 10 27.8 26.8 46.0 SOLAR POWER CONDITIONER DISPLAY POWER BACK LIGHT RESET DISPLAY MODE CO 2 12.0 45.8 57.8 32.8 20 (unit:mm) Name of Parts LCD DISPLAY PANEL POWER POWER BUTTON RESET BUTTON RESET SOLAR POWER CONDITIONER DISPLAY BACK LIGHT DISPLAY MODE CO 2 BACK LIGHT CO2 BUTTON BUTTON DISPLAY MODE BUTTON Solar Power Conditioner Bracket 40 566 59 6.5 18 82 125 20 -φ 6. 5 452 186 2 φ1 42.
Installation Instructions Before Installation READ ALL THE INSTRUCTIONS AND CAUTIONS MARKED ON THIS MANUAL, THE SOLAR POWER CONDITIONER, AND THE PV ARRAY BEFORE INSTALLATION. WARNING • All electrical work should be done in accordance with local and national electrical codes ANSI/NFPA70. • Connecting the solar power conditioner to the grid should only be done after receiving prior approval from the power company and performed only by a Sharp certified installer.
Required tools or items Besides the supplied items on the previous page, the following tools or items are necessary. Tools: • Measuring tape (longer than 1 m) • Screw drivers Phillips and Flat-head • Electric driver Torque: 0.78~3.4 N.m • Nipper • Hammer • Pliers • Wire strippers • Utility knife • Socket wrench and fittings • Torque wrench • Open-end wrench • Electric drill • Drill bits ∅6mm, 7mm, 8.
2. Attach the bracket to the wall. A hole allocated on the upper side of the horizontal center is for hanging the bracket. Tighten included screw which is intended for hanging it on the wall (not completely tighten, some spacing to hang the bracket is needed). This screw does not need the flat washer. And then, hang the bracket to the screw. 3. Tighten ten pieces of included screws to fix the bracket. These screws need flat washers. At the end, Tighten all the screws for hanging completely.
7. Seal the space between the mounting bracket and the wall with modified silicone sealant. Sealing Sealing Sealing 8. Tighten A screw removed on step 3 through the lower hook of the bracket. A 9. Confirm that the solar power conditioner is installed securely.
Electrical Connection The solar power conditioner is the inverter to be connected to both the PV modules and the grid (AC 240 volt, 60Hz).
NOTE • Wiring of the PV module · Number of PV modules in series should obey the condition that the open circuit voltage of the PV strings is not higher than 350V DC when the ambient temperature is from -20°C to 40°C, and the minimum operation voltage is higher than 110V. · The number of the PV strings must be three or less. The number of PV modules in series of each PV string can be different if the above condition is satisfied. The short circuit current of each PV string must be lower than 10A.
Wiring Solar Power Conditioner WARNING • All the procedures must be performed by a certified installer. • Wiring the solar power conditioner and the DC disconnect enclosure, or the AC load center (or the AC disconnect enclosure) must be performed with conduit. Also, the wiring of the solar power conditioner to the solar power conditioner display should be safe from abrasion, moisture, heat, UV, and other elements of risk.
Before Wiring Remove the front panel of the solar power conditioner. 1. Unscrew 4 screws, then, remove the lower part of the front panel of the solar power conditioner. 2. Two openings are available for DC disconnect. Choose which openings to use, and remove the end cap of the opening. Don’t remove the caps of the openings which are not used.
Connecting to DC Disconnect This section describes the connection between the solar power conditioner and the DC disconnect. The distribution of the connection are the output cables from the PV string (maximum three pairs of cables) and a grounding cable from the DC disconnect. Follow all WARNING and CAUTION of Wiring Solar Power Conditioner (page 13). GND terminal DC terminal Block for DC disconnect G 1.
5. Return to step 3 for the negative cable (white) to connect to the negative terminal of the terminal block 1. If the polarity is reversed, the solar power conditioner cannot operate. 6. The next pair of cables should be connected to next left terminal block. Return to step 3 to connect the cables. 7. If all DC cables are connected to terminal blocks, remove the jacket of the grounding cable (AWG10 single copper conductor wire) in the same way (See step 3) . 8.
Connecting to AC Disconnect This section describes the connection between the solar power conditioner and the AC disconnect. The distribution of the connection is the AC output cable from the solar power conditioner (one paired cable) and the grounding cable. Follow all WARNING and CAUTION of Wiring Solar Power Conditioner (page 13). CAUTION • Use exterior cable or tube on the exterior part between the conditioner and the PV module. NOTE • The AC disconnect includes function of over current protect.
5. Connect a grounding cable to the leftmost G terminal of the AC terminal block, and tighten the screw firmly to crimp the wire. GND G 6. Confirm that all the cables are correctly and firmly connected to the terminals of the solar power conditioner. Confirm that all the screws never move if the connected cable is pulled or bent. Tighten all the screws firmly again. Make tight, 25 year duration, high quality connections and terminations.
Installing Solar Power Conditioner Display Follow all WARNING and CAUTION on Location of Installation Instructions (page 6). WARNING • Do not install the display outdoors, as it may be damaged leading to smoking or fire. CAUTION • Signal cable of the display should not be cut or fastened, as it may cause malfunction. • Use the included signal cable to connect the solar power conditioner and the display. • Do not pull the signal cable at the connector, as it may break the wire. 1.
6. Insert the cable into the slot. INV SVC SETTING ENTRY SELECT Slot 7. Insert the smaller 4-pin connector of the cable to the connector in the display. (listen for clicking sound that ensures it is locked in place). Installing Display in a Socket Box If you want to install the display on a wall, refer to Installing Display onto a Wall. 1. Insert the cable into the groove on the backside of the display. Groove 2. Position the display and tighten by included screws.
Installing Display on a Wall If you want to install the display in a socket box, refer to Installing Display in a Socket Box. 1. Tighten the included two screws for the display into the wall (not completely tighten, leave some spacing to hook the display). 2. Insert the cable in the vertical groove on the backside of the display. If using the upper groove, remove the cover of the groove. 3. Hook the display at the two screw slots on the backside and secure it down in place.
Test Running CAUTION Confirm the following before testing • All terminals are securely connected. • All wires are connected. • The exposed conductors have no short circuits. • All the cables are joined and fixed in place with the cable ties. • All the conduit hubs are tightened. Checking DC Voltage from PV String Checking must be performed on a sunny day. 1. If the PV modules are covered with sheets, remove them. 2. Remove the GFDI fuse. 3. Turn on the DC disconnect switch. 4.
Test Running 1. Turn on all the DC wiring switches, and confirm that “d-47” is displayed on the LCD display. If “d47” is not displayed, the DC connections are incorrect. Check the polarity of all the DC wiring. 2. Turn off the AC&DC disconnect switches, and wait for 5 minutes to avoid the risk of electric shock. 3. 5 minutes after the AC&DC disconnect is turned off, insert the GDFI fuse to the fuse socket. And then turn on the AC&DC disconnect switches. 4. “d-47” will be displayed again.
Changing Operating Parameter CAUTION The following operation includes the changing of the trip points of voltage or frequency. Never open the front cover of the solar power conditioner display except by an authorized installer. • To change the trip points, follow the instructions below. • Perform changes while PV module is generating power during the daytime of a sunny day. Refer to the table on page 28 of the value. The default value is designated by bold character. 1. Stop the power conditioner manually.
4. To change the parameter number, press “SELECT”. 5. When the target parameter number is displayed, press “SETTING” to change its value. Only parameter numbers 1,2,7,9,11,12 can be changed.
6. When finished to changing all the target parameter values, press “ENTRY” to save the values. 7. When finished, slide the both dip switches to INV position. 9. Reinstall the front cover of the display.
Parameter and its Description Parameter Number 1 2 3 4 5 6 7 8 9 10 11 12 27 Parameter Description AC over voltage AC under voltage AC over/under voltage stop time AC over frequency AC under frequency AC over/under frequency stop time Reversion timer AC voltage suppression function Islanding protection level AC voltage suppression level PV system maximum output power Transmission address Parameter value 260 211 2 0.5 -0.7 0.1 10 OFF 6 50 1.0 5 262 213 264 215 (60.5) (59.3) 180 150 9 OFF 1.5 - 2.
Trouble Shooting Display F-01 GRID OFF No display Check point Power failure Confirm AC Disconnect Switch is turned on. Confirm the dedicated breaker of the distribution board is tuned on. Check AC terminal voltage with multimeter Check DC terminal voltage with multimeters E-23 (Internal)Temperature of power conditioner inside is too high. D-47 Check ground fault detector interrupter fuse. The mode is set to manual. STOP Countermeasure Wait until utility recovers from blackout.
Specification Model JH-3500U Maximum system voltage (DC) 380 V Rated input voltage (DC) 240 V Range of operating DC voltage (DC) 110 V to 350 V Maximum array short circuit current (DC) 10 A Maximum operating current (DC) 22.5 A (7.5A for a DC input × 3) Nominal output voltage (AC) 240 V Operating voltage range (AC) 211 V to 264 V Nominal output frequency (AC) 60 Hz Operating frequency range (AC) 59.3 Hz to 60.
SHARP CORPORATION Printed in Japan Doc. NO.
