1810. InstallationImportant notes: If the UPS is used in single mode, JPI and JP2 must beconnected by 10AWG(6mm2). If the UPS is used in parallel mode, the Jumperbetween JP1 and JP2 must be removed.10.3 Operating procedure for connecting the long backup time model UPS with theexternal battery1. The nominal DC voltage of external battery pack is 240VDC. Each battery packconsists of 20 pieces of 12V maintenance free batteries in series. To achievelonger backup time, it is possible to connect multi-battery packs, but the principle of“same voltage, same type” should be strictly followed.2. The connector of the external battery cable is used to plug into the external batterysocket of the UPS, the other end of the external battery cable is made of threeopen wires with ring terminals to connect with the external battery pack(s). Theprocedure of installing battery bank should be complied with strictly. Otherwise youmay encounter the hazardous of electric shock.1) A DC breaker must be connected between the battery pack and the UPS. Thecapacity of breaker must be not less than the data specified in the generalspecification.2) Set the battery pack breaker in “OFF” position and connect the 20 pieces ofbatteries in series.3) You must connect the external battery cable to the battery first, if you connect thecable to the UPS first, you may encounter the hazardous of electric shock. Thepositive pole of the battery is connected to the 10000HXL in parallel with blueand brown wires; the negative pole of the battery is connected to the 10000HXLin parallel with black and white wires; the green and yellow ribbon wire isconnected to the ground of the battery cabinet.3. To complete the connection by plugging the connector of the external battery cableinto the external battery socket of the UPS. Do not attempt to connect any loads tothe UPS now. You should connect the input power wire to the right position first. Andthen set the breaker of the battery pack in the ON position. After that set the inputbreaker in the ON position. The UPS begins to charge the battery packs at the time.The blue & brown wires for connection to the positive terminal of the battery packoutputThe black & white wires for connectionto the negative terminal of the batterypack outputThe green and yellow ribbon wire for connection to theground of the battery cabinetThe receptacle forconnecting the UPS