Warranty: 5-years Max Current : Your email address will not be published. Notify me of new posts by email. Currently you have JavaScript disabled. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. Design assistance, Permit submittals, Schematics. The Conext XW MPPT can be used with 12, 24, 36, 48, and volt DC battery systems and is able to charge a lower nominal-voltage battery from a higher nominal-voltage array.
For example, the MPPT can charge a volt battery from a volt array. This provides flexibility for installers to use longer wiring runs without compromising efficiency. The MPPT constantly adjusts the operating points of the array to ensure it stays on the maximum power point. It does not stop energy harvest to sweep the array like some other competing products. This feature is beneficial all sunlight conditions, especially in areas with fast moving cloud cover and quickly changing solar conditions.
Page Auxiliary Output Functions Introduction Auxiliary Output Functions The XW SCC has a configurable auxiliary output producing 5 to 13 volts and up to milliamps to drive a relay for load control or to turn on devices such as vent fans or indicator alarms. The auxiliary output can be configured to perform only one function at a time.
Depending on your installation, you may need to perform certain installation stages in a different order than the order presented in this chapter. The installation and rated performance of your PV array is subject to inspection and approval by the authority having jurisdiction. Page Mounting Installation procedures will vary according to your specific application. For special applications, consult a qualified electrician or your Xantrex Certified Dealer.
When units are mounted in a vertical stack, the topmost unit must maintain the minimum clearance to the nearest surface. Note: Minimum clearances can be ignored when mounting two units on the side of the XW Power Distribution Panel part number Page Removing The Wiring Compartment Cover Mounting Removing the Wiring Compartment Cover Before mounting, remove the wiring compartment cover to access the mounting holes and the wiring terminals. See Figure Remove the wiring compartment cover. Mark the location of the keyhole slot on the wall.
These provide a negative ground bond and ground-fault protection for negative grounded PV array systems common in North American installations.
This equipment should only be installed by a qualified electrician or a Certified Renewable Energy System Installer. This wire gauge is determined by electrical code requirements regarding conduit knockout sizes, wire bending radius, and space available within the XW SCC wiring compartment.
Refer to Table and find the maximum current in the left column, and the one- way distance from the PV array to the XW SCC or the distance from the XW SCC to the battery on the same line, then read the wire size required at the top of the column. To reduce the risk of shock during installation, cover the array with an opaque dark material before making the connections. To avoid a shock hazard, ensure that all connections made to the AUX terminals have no uninsulated wire segments and that all wiring has an insulation rating of at least V.
Page Ordering Network Components Table provides a partial list of network components and part numbers. Cables are available in standard lengths from 3 feet 0.
Call your dealer or visit the Outlet Store at www. Replacement Battery Temperature Sensors are available from Xantrex replacement part number To install the BTS: 1. Page Commissioning Commissioning Commissioning During commissioning, the XW SCC prompts you to enter important system information such as the nominal battery voltage, battery type, and battery bank capacity.
Ensure you have this system information prior to commissioning. This screen is also available in the Device Menu for referencing during normal operation see page 3— Page 46 Installation Note: If it is necessary to reset the XW SCC to factory default settings, checking that the device number has reverted to 00 will confirm the reset was successful.
Commissioning units using an SCP involves three separate procedures: 1. If the system has only one battery bank, leave DC Conn at the default setting. See page 4—8. Equalization 0— d ays Sets a reminder that notifies you Reminder 0d when the battery needs equalizing. This setting does not control the duration of the entire Absorption stage.
The Custom Battery menu allows you to adjust charging and equalization voltage for batteries whose specifications fall outside of the default settings for the battery types the XW SCC offers. Page Battery Temperature Compensation Configuration Battery Temperature Compensation When battery charging voltages are compensated based on temperature, the charge voltage will vary depending on the temperature around the batteries. Temperature compensation can be accomplished automatically by using a BTS.
The BTS attaches directly to the side of one of the batteries in the bank and provides precise battery temperature information. Configuring the reference voltage is not required for normal operation, but can be useful for non- PV applications or for testing purposes.
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