Installing the XW Automatic Generator Start
Connecting an External Manual ON/OFF Switch (optional)
The external manual ON/OFF inputs (wires 7 and 8 on the wiring harness) are intended for wiring to one or more remote ON/OFF switches for starting and stopping the generator manually. Wire 7 (Start) and wire 8 (Stop) should each run to their own momentary-contact switch or push-button. The other contact on both switches (common) should be connected to wire 11 on the harness.
Note: Internally, wire 11 is connected to wire 13 so it should already be connected to the negative terminal on the generator battery.
In order for the XW Auto Generator Start to be able to detect these switches, connect the fused positive of the generator battery to wire 10 on the harness (the constant 12-volt/24-volt wire). See Figure 2-18 on page 2–25. Ensure all circuits added to the system comply with Table 2-1, “Circuit Limitations” on page 2–5.
If the generator battery does not have the required voltage, any 12-volt or 24-volt power source meeting the limits on page 2–5, will suit this purpose. If an alternate power source is used, its positive terminal must be connected to wire 10. Its negative must be connected to wire 11.
Note: Internally, wire 11 is connected to wire 13, so in this configuration, the alternative power source negative will be connected to the negative terminal on the generator battery.
WARNING: Fire and Shock Hazards
When making connections to a 12-volt or 24-volt power source that exceeds the class 2 power limitation of 100 VA (e.g., a battery) always use over-current protection as defined in Table 2-1. This also applies to thermostat and external manual ON/OFF connections. Locate the protection device at the power source in the positive wire.
Do not connect the XW Auto Generator Start to a 48-volt battery bank. The XW Auto Generator Start is limited to a 30V open-circuit maximum by its regulatory approval and cannot be connected to a 48-volt power source.
CAUTION: Equipment Damage
Tapping 12-volts or 24-volts from a 48-volt battery bank will unevenly wear out the batteries and shortens the battery bank life.
