INSTALLATION MANUAL Enphase AC Battery 2016-12 141-00036, Rev 01
AC Battery Installation Contact Information Enphase Energy Inc. 1420 N. McDowell Blvd. Petaluma, CA 94954 enphase.com enphase.com/en-us/support/contact FCC Compliance 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.
AC Battery Installation Table of Contents SAFETY ................................................................................................................................................. 4 In Case of Fire or Other Emergency ...................................................................................................... 4 Safety Instructions .................................................................................................................................
AC Battery Installation SAFETY To ensure the safe installation and operation of the AC Battery, note the following safety symbols that appear throughout this document to indicate dangerous conditions and important safety instructions. DANGER: This indicates a hazardous situation, which if not avoided, will result in death or serious injury. WARNING: This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction.
AC Battery Installation DANGER: Risk of fire or explosion. Only qualified personnel, using personal protective equipment (PPE) should transport or handle the AC Battery. Do not dispose of AC Battery(ies) in a fire or by burning. The AC Battery(ies) can explode. DANGER: Risk of fire.
AC Battery Installation NOTES: Method of active anti-islanding protection: The AC Battery monitors for sudden changes in the impedance of the grid by looking for changes in the second to the eighth harmonic. If significant changes are detected, then the internal microinverter is de-energized thus preventing islanding. Perform installation and wiring in accordance with all applicable local electrical codes and standards.
AC Battery Installation The Enphase AC Battery The Enphase AC Battery™ is the heart of the Enphase Storage System. The AC Battery is simple to install, safe, very reliable, and provides the lowest lifetime energy cost for both new solar customers and retrofit customers. You can install as many batteries as needed to meet the needs of the system owner. The Enphase Storage System includes the Enphase AC Battery with integrated Enphase Microinverter™.
AC Battery Installation Block Diagram Planning The Enphase AC Battery is controlled by the Enphase Envoy-S Metered gateway. The AC Battery cannot function if it is not receiving commands from the Envoy-S. For that reason, it is critical that the Envoy-S and AC Battery(ies) are located as close as possible to each other. The Envoy should be located within 65 feet (20 m) electrical distance from the AC Battery(ies).
AC Battery Installation One Enphase Wall-Mount Bracket (BWM-16IN-B) for each battery. The wall-mount bracket shipping box includes only the bracket. The brackets are sized to accommodate standard residential stud spacing of 16 inches. b. Make sure you have the following required items: Enphase Envoy-S Metered communications gateway with production CT(s) and consumption CT(s) installed and configured as described in the Enphase Envoy-S Metered Quick Install Guide.
AC Battery Installation Installing the AC Battery Steps one through four describe installation of the wall-mount bracket and junction box wiring, while steps five and six describe mounting the battery and energizing the system. 1. Choose a Location for the AC Battery Choose a location for the AC Battery Install the wall-mount bracket The AC Battery housing is a NEMA type 2 metallic enclosure. The terminal blocks on the wall-mount bracket accept a maximum conductor size of 12 AWG (4 mm2). a.
AC Battery Installation 2. Install the Wall-Mount Bracket a. Make sure that the wall-mount bracket matches the wall stud spacing and that the lowest wallmount bracket position meets clearance requirements as shown. WARNING! Risk of injury and equipment damage. Protect the AC Battery from damage and improper use. b. Remove the appropriate knockout(s) for the planned entry into the wall-mount bracket junction box: If wiring inside the walls, use the knockout(s) in the back of each junction box.
AC Battery Installation The wall-mount bracket allows 16-inch battery-to-battery spacing: 35.2 in 14.0 in 19.2 in 16.0 in 3. Install the AC Disconnect (if required) Following all local codes and standards: a. Choose an AC Disconnect that can break the maximum rated current of the branch circuit under load (20 A maximum). b. Connect one side of the disconnect to the load center: c. Verify that AC voltage at the site is within range.
AC Battery Installation 4. Wire the Junction Box DANGER! Risk of electric shock. Check that the dedicated circuit breaker protecting the branch where the AC Battery will be connected is turned off before wiring. WARNING! Risk of equipment damage. Always connect to two Lines (active) and to one Neutral. a. Size the conductors (Line, Neutral and Ground) depending on the upstream breaker or fuse. Use 12 AWG to 20 AWG (4 mm2 to 2.5 mm2) wire with maximum 20A branch circuit protection.
AC Battery Installation 5. Mount the AC Battery on the Wall WARNING: Risk of injury and equipment damage. You must mount the AC Battery to a suitable wall. WARNING: Risk of injury and equipment damage. Avoid dropping the AC Battery. Doing so may create a hazard, cause serious injury, and/or damage the equipment. WARNING: Before mounting the Enphase AC Battery, ensure that the junction box cover is secured! WARNING: Take care when lifting the AC Battery.
AC Battery Installation WARNING: Risk of equipment damage. When placing the AC Battery on the wall-mount bracket, ensure that the junction box does not pinch the DC connector, the AC connector, or its cable. d. Use a Phillips #2 screwdriver to secure the two bond screws into the wall-mount bracket. The bond screws are accessible through the bottom access compartment. The bond screws provide a grounding bond between the AC Battery and the wall-mount bracket.
AC Battery Installation Operation The following sections describe operation of the AC Battery. Charging and Discharging The charging and discharging functions are controlled by the Envoy-S as follows: Charging: The AC Battery typically charges during daylight hours and when the solar production is greater than the home consumption. The AC Battery can also be programmed to charge from the electric grid at night under certain conditions.
AC Battery Installation Troubleshooting The following sections describe possible problems and solutions. During installation, use the Enphase Installer Toolkit mobile app to verify AC Battery operation. The Installer Toolkit, when used with the Envoy-S provides information about the status of the AC Battery, the PV production, and the home energy consumption.
AC Battery Installation because the Envoy-S communicates with the AC Battery using power line communications. The Envoy-S and AC Battery(ies) must be installed on the same phase. Relocate the Envoy When possible, locate the Envoy-S within 65 feet or 20 meters (electrically) from the AC Batteries. This may not always be practical since the Envoy-S must also be connected to the production and consumption CTs that are installed around the main service and solar production circuits.
AC Battery Installation Battery LED is Solid Amber Check the temperature in the room and increase cooling and/or ventilation as required to meet temperature requirements. The AC Battery requires an ambient temperature between -4° F (-20° C) and 113° F (45° C), and where relative humidity is between 5 and 95 percent. Check that the front, top, and sides of the AC Battery array have at least one foot of unobstructed clearance.
AC Battery Installation Removing or Replacing an AC Battery If problems remain after following the troubleshooting steps above, contact Enphase at enphase.com/enus/support/contact. DANGER! Risk of electrocution! Do not disconnect the consumption CT leads from the terminal block while the sensed circuit is energized. DANGER! Risk of electric shock. Risk of fire. Do not attempt to repair the Enphase AC Battery; it contains no user-serviceable parts.
AC Battery Installation 2. Once you have confirmed that the AC Battery has ‘Fallen Asleep’, turn off power to the AC Battery at the main load center. Verify that all power is removed from the system before attempting to remove the AC battery. 3. Remove the bottom access plate on the AC Battery using a 5/32 inch (4 mm) Allen key. 4. Disconnect the AC connector from the wall-mount bracket junction box. 5. Disconnect DC connector from DC socket. 6.
AC Battery Installation Replacing the AC Battery NOTE: When replacing an Enphase AC Battery, you must replace it with an AC Battery of the same type, with the same AC current rating. Follow the steps in “5. Mount the AC Battery on the Wall” starting on page 14. After installing the new AC Battery, do the following: 1. Verify operation of the replacement AC Battery by checking the LED. 2. Use the Installer Toolkit mobile app to delete the old AC Battery serial number from the Envoy-S database.
AC Battery Installation Method 2: Use an Envoy-S If you have an Envoy-S, press the Device Scan button on the Envoy-S. The Envoy-S begins a 15-minute scan to identify all of the devices deployed at the site. The Device Communications LED flashes green during the scan. Device Communications LED Device Scan button 4. Log in to Enlighten to use Enlighten’s Array Builder to add the newly detected device to the virtual array. 23 © 2016 Enphase Energy Inc.
AC Battery Installation Technical Data Model Number Enphase AC Battery (B280-1200-LL-I-US00-RF0) AC Battery with integrated S280-ACB-LL-US Enphase Microinverter Accessories Enphase wall-mount bracket Order separately: BWM-16IN-B: 487 mm (W) x 356 mm (H) / 19.2 in. (W) x 14.0 in. (H) accommodates 16 in. battery to battery spacing Weight: 3.65 kg (8.05 lbs.) Output Power Peak output power 280 VA Rated (continuous) output power 270 VA Nominal voltage ~25.
