SAMLEX AMERICA INC. | 71
SECTION 3 | Installation
• For EVO-1212F / EVO-1212F-HW: The maximum continuous DC current required is 152A. The capacity of the
Battery Isolator should be more than 152A or more than the capacity of the alternator, whichever is higher.
• For EVO-1224F / EVO-1224-HW: The maximum continuous DC current required is 76A. The capacity of the
Battery Isolator should be more than 76A or more than the capacity of the alternator, whichever is higher.
3.18.3 Requirement to Keep the Neutral Conductor of Shore Power Isolated From the Chassis
Ground of the RV
As explained in on-line White Paper titled “Grounded Electrical Power Distribution System” at www.
samlexamerica.com (Home > Support > White Papers), in the RV, the Neutral Bus Bar is NOT bonded to the Chassis
of the RV. In the RV, the Neutral is oating with respect to the chassis of the RV. This is necessary for safety because if
the Neutral was bonded to the chassis of the RV and if the Neutral and the Hot got reversed by mistake, the chassis
of the RV will be at 120 VAC with respect to the Earth Ground. If a person standing on the Earth Ground touches the
chassis of the RV, he will be fed with 120 VAC and will receive electrical shock!
3.18.4 Typical Mobile Installation
Fig 3.14 illustrates typical RV installation for EVO-1212F / EVO-1224F using 30A, 120VAC, Single Phase Service Inlet. Fig
3.15 illustrates typical RV installation for hard-wired versions EVO-1212F / EVO-1224-HW using 30A, 120VAC Single
Phase Service Inlet:
• Auxiliary Battery is connected to the DC input connections through an appropriate fuse to protect the DC input
cables against short circuit
• When AC input from the Grid is not available, the Auxiliary battery will be charged by the alternator through the
Battery Isolator
• Battery Charger Temperature Sensor Model BCTS-EVO is installed on the Positive or Negative post of the auxiliary
battery and connected to the RJ-45 Jack for the Temperature Sensor
• Supplementary battery charging is being carried out through a solar array and a Charge Controller connected to
the DC input provided for external battery charger
• AC input to the EVO™ is fed from the Electrical Panel of the RV (through suitable breaker).
• If the RV has a 50A Service, 120VAC Single Phase input to the EVO™ can be fed from either of the 2 Split Phase
Legs of the 50A RV Panel (through suitable breaker).
• AC output from the EVO™ is fed to the Electrical Sub-Panel for EVO™ (Use 120V version and NOT 120/240 Split
Phase version of the Electrical Sub-panel)
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