Generac Power Systems 004270-1 - Manual (Page 33)

Section 2 - Installation INSTALLATION
QUIETPACT™ 75D Recreational Vehicle Generator
^ 2.6.3. 1 Generator Coversion to
120 Volts Only - Dual Circuits
NOTE:
Conversion of a QUIETPACT™ generator from
"120/240 volt dual voltage" to "120 volts only -
dual
circuits" {or vice-versa) requires rerouting
wires within the unit enclosure. It is recommend­
ed that this conversion be performed by a Generac
Authorized Service Dealer.
Figure 2.16 shows the stator power winding connec­
tions for 120 volts only - dual circuits. Two stator
power windings are used, with each winding capable
of supplying half of the unit's rated wattage/amperage
capacity. The circuit from each winding is protected
against overload by a line breaker (CBl and CBIA).
Line breakers CBl and CBIA have a trip rating of 35
amps.
To convert from "120/240 volt dual voltage" to "120
volts only - dual circuits", disconnect battery power
from the generator and reverse stator lead wires 33
and 44 as follows:
NOTE:
It is necessary to feed stator lead wires 33 and 44
through grommets on the electrical enclosure and
engine control box in order to perform the rerout­
ing outlined below. The front and top unit enclo­
sure panels, as well as the user control panel, must
be removed to perform this. After re-routing, wires
should be properly tied down to prevent chafing or
contact with moving internal components
1. Remove stator lead wire 33, as shown in Figure
2.15, from the ground stud adjacent to the four-
position terminal block. Reroute stator lead 44
from the line side terminal of CBl (renamed as
CBIA in Figure 2.16) to the ground stud location
previously occcupied by stator lead wire 33.
2. Move smaller gauge (#18 AWG) wire labeled #44
(not shown), from the top of CBIA to the top of
CB1. Renumber this wire #11.
3. Reroute stator lead wire 33, removed in step 1,
to the line side terminal on CBIA.
4. Renumber ground wire "33", located between
the four-position terminal block and ground in
Figure 2.15, as ground wire "44", as shown in
Figure 2.16.
5. Renumber wire "44A" from Figure 2.15 as wire
"33A" in Figure 2.16..
6. Connect a 12 AWG jumper wire between line
breakers CBl and CBIA, as shown in Figure
2.16.
7. Remove the "tie bar" between the two-line break­
er switch handles.
When connecting vehicle load leads, the following
rules apply:
• Connect 120-volt, single-phase, 60-Hertz, AC elec­
trical loads, requiring up to the trip rating of cir­
cuit breaker CBl, across AC output leads T1 (red)
and T2 (white).
Connect 120-volt, single-phase, 60-Hertz, AC elec­
trical loads, requiring up to the trip rating of cir­
cuit breaker CBIA, across AC output leads T3
(black) and T2 (white).
Try to keep the load balanced between the two cir­
cuit breakers and the stator windings.
The neutral line (T2, white) on all units is a ground­
ed neutral.
A
------- ik CAUTION Jk-----------------
Do NOT connect electrical loads in excess of any
circuit breaker rating, or you will develop prob­
lems with circuit breaker tripping, which causes a
loss of AC output. Also, do NOT exceed the gen­
erator's rated wattage capacity. Add the watts or
amps of all lighting, appliance, tool, and motor
loads the Generator will operate at one time. This
total should be less than the unit's rated
wattage/amperage capacity.
Figure 2.15 - Connections for 120/240 Dual
T i Ta T3
(RED) neutral < BLACK)
mmmmi
,...prz::rJJ?.-rrrd___________ .1____ ~rrmr ,
\............... .................!2
33 0^
_________ ______________ 3
CB
i J
............ ..
CB 1
J
.
....................................9.::.,
I
1 —
k
kjUJUULr^ GROUT
NEUTR
“P K jlajuul H
Figure 2.16 - Connections for 120 Volts Only
Dual Circuits
A
NEUTRAL < BLACK.
Generac* Power Systems, Inc. 3i