Smart Power Systems Liberator Series - Manual (Page 24)

Smart Power
®
Systems
A. C. MODULAR GENERATOR SYSTEM
Page 23 of 54
8. Connect the vehicle’s breaker panel to the generator output. The generator is pre-
wired to supply 120/240 VAC, with the generator frame bonded to ground. Route
the generator output conduit/wiring to the breaker panel, and carefully cut the
conduit to length without cutting the wire insulation. A conduit connector has been
provided to connect the conduit to the breaker panel. Connect the (4) four
generator output wires to the breaker panel as follows (see Figure 2 for electrical
schematic and wiring diagram):
Phase A: Black wire (120 VAC)
Phase B: Red wire (120 VAC)
Neutral: White wire
Ground: Green wire
To completely utilize the generator’s output capabilities, the 120 VAC loads must be
equally divided between the generator’s two main windings. Before wiring the
vehicle, calculate the wattage of each 120 VAC load that will be connected to the
generator. Next, create two groups of loads based on total wattage (add the
individual wattage of each load together). Exchange loads between the two groups
until the total wattage of the two groups is as close as possible to being equal. Wire
the system with one group connected to Phase A (BLACK) and neutral, with the
other group connected to Phase B (RED) and neutral.
WARNING:
To ensure proper voltage regulation, during the operation of generator system, the
load difference between Phase A and Phase B must never exceed 20%. Damage to
generator system caused by operating it with an unbalance load will void the
system’s warranty.
Wiring of the A.C. modular generator system and electrical distribution throughout
the vehicle must be done in accordance with applicable sections in the National Fire
Protection Association’s document NFPA 1901, the National Electrical Code
®
and/or
other applicable, recognized electrical code and by a certified electrician.
Smart Power
®
Systems’ A.C. modular generators are supplied with the neutral
bonded to ground. Refer to National Fire Protection Association’s document NFPA
1901, National Electrical Code
®
, and/or other applicable recognized electrical codes
before wiring an SPS A.C. modular generator system.
Never wire any loads to the generator’s output without a circuit breaker in series
with the load. Damage to the generator, to the components within that circuit,
electrical shock, or fire may result if a short occurs in an unprotected circuit. Run
all 120 VAC and 240 VAC electrical connections between the generator and the
distribution panel in conduit. Bypassing the SPS factory installed breaker will void
the system’s warranty. Replacement breakers must be obtained from Smart Power
®
Systems approved sources only.