Onan DYC Series Operator's Manual And Parts Catalog page 22

120/240 Volt, Single Phase, 12 Lead: Terminal c o n -
nection LO can be grounded (neutral). For 120 volts,
connect the hot load wires to either the L l and L2
connection, Figure 18. Connect the neutral load wire
to the LO connection. Two 120 volt circuits are thus
available, with not more than 1/3 the rated capacity of
the set available on either circuit. If using both
circuits, be sure to balance the load between them.
For 240 volts,. connect one load wire to the L l
connection and the second load wire to the L2
connection. Terminal connection L0 is not used for
240 volt service.
_1_
240 V L2-
1
I2(
) V
v *
240 V
t
1
.'
1 3 ^
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CONNECTION FOR ANY
120 V O L T LOADS.
I FIGURE 19. 120/240 V. 3-PHASE DELTA
Only 2/3 of rated current is available from this connection.
"i r
120 V j
120 V
240 V
FIGURE 18. 120/240 VOLT 1 0 DOUBLE DELTA
3 Phase, Wye; 12 Lead: The 3 phase, 4 wire set
produces line to neutral voltage and line to line
voltage. The line to neutral voltage is the lower
voltage as noted on the unit nameplate, and the lineto
line voltage is the higher nameplate voltage.
For 3 phase loads, connect separate load wires to
each of the set terminals L l , L2 and L3. Single phase
output is obtained between any two 3 phase terminals
as shown in Figure 20.
t h e terminal marked LOcan begrounded. F o r i phase
loads, connect the neutral (white) load wire to the L0
terminal. Connect the black load wire to any one of
the other three terminals — L l , L2 or L3. Three
separate 1 phase circuits are available, with not more
than 1/6 the rated capacity of the set from any one
circuit.
If using 1 phase and 3 phase currentatthesametime,
use care to properly balance the 1 phase load, and not
to exceed rated line current.
120/240 Volt, 3 Phase, Delta; 12 Lead: The 3 phase
Delta connected set is designed to supply 120 and 240
volt, 1 phase current and 240 volt, 3 phase current,
Figure 19. For 3 phase operation, connect the three
load wires to generator terminals L l , L2 and L3—one
wire to each terminal. For 3 phase operation the L0
terminal is not used.
For 120/240 volt, 1 phase, 3 wire operation, terminals
L1 and L2 are the " h o t " terminals. The L0 terminal is
the neutral, which can begrounded if required. For
120 volt service, connect the black load wire to either
the L l or L2 terminal. Connect the neutral (white) wire
to the L0 terminal. Two 120 volt circuits are available.
Any combination of 1 phase and 3 phase loading can
be used at the same time as long as total current does
not exceed the NAMEPLATE rating of thegenerator.
If no 3 phase output is used, usable 1 phase output is
2/3 of 3 phase KVA.
Figure 20 shows load connections for 120/208 voltage. Other
voltages are available from either parallel wye or series wye
illustration in Figure 2 1 .
FIGURE 20. 120/208 V. 3-PHASE WYE
20