Generac Power Systems 4270-0 - Manual (Page 22)

GENERAL
INFORMATION
Section 1 - General Information
QUIETPACT™ 75D Recreational Vehicle Generator
1.1 PURPOSE AND SCOPE
OF THE IVIANUAL
These Installation Instructions have been prepared
especially for the purpose of familiarizing installers
and owners of the applicable equipment with the
product's installation requirements. Give serious
consideration to all information and instructions in
the manual, both for safety and for continued reliable
operation of the equipment.
Because of the different recreational vehicle models
and the variations between the models, it would be
extremely difficult, if not impractical, to provide
detailed instructions for every possible installation.
For that reason, instructions and illustrations in this
manual are general in nature. Illustrations are not
intended to serve as detailed installation blueprints.
The installation should comply strictly with all
applicable codes, standards and regulations pertain­
ing to the installation and use of this product. If any
portion of this manual appears to be in conflict with
such codes, standards or regulations, the applicable
codes, standards or regulations must take prece­
dence over the manual.
1.2 SAFETY
Before handling, installing, operating or servicing this
equipment, carefully read the “Notice to Installer”
and “Safety Rules” on Pages 18 and 19. Comply with
all safety rules to prevent death, personal injury or
damage to equipment and/or property. Stress safety
to all installers, operators and service technicians
who work on this equipment.
1.3 STANDARDS BOOKLETS
Installation, use and servicing of this equipment
should comply strictly with published standards, as
well as the manufacturer's recommendations. The
fol'owing standards booklets (latest revision) are
available from the sources indicated:
1. NFPA Standard 501C, “Standard for Recreational
Vehicles,” available from the National Fire
Protection
Association, Batterymarch Park,
Qui icy, MA 02269,
2. NF A 70, “NFPA Handbook of the National
Electric Code,” available same as Item 1.
3. ANSI Cl-1975 and ANSI 119.2-1975, available
from the American National Standards Institute,
1430 Broadway, N(Av York, NY 10018.
4 ANSI A119.2/NFPA 501C, available from the
Recreational Vehicle Association, 1896 Preston
White Drive, Reston, VA 22090.
5, California Administrative Code, Title 25, avail­
able from the State of California, Documents
Section,
PO. Box 1015, North Highlands,
CA 95660.
20 Generac* Power Systems, Inc.
6. CSA Electrical Bulletin 946, available from the
Canadian Standards Association, Housing and
Constructions Materials Section, 178 Rexdale
Boulevard, Rexdale, Ontario, Canada, M9W 1R3.
1.4 EQUIPMENT DESCRIPTION
Instructions and information in this section pertain to
Generac liquid-cooled generators designed specifically
for installing in recreational vehicles. The QUIETPACT
75D operates 120/240-volt, single-phase, 60-Hertz, AC
electrical loads that require up to 62.5 amps at 120
volts or 31.2 amps at 240 volts.
1.5 GENERATOR ENGINE
OPERATING SPEED
The generator’s two-pole revolving field (rotor) is dri­
ven by a three-cylinder, 1.0-liter diesel engine. The
generator supplies 120/240 volts AC at 60 Hertz
when the rotor is operating at 3,600 rpm. Engine
speed is held nearly constant by a mechanical, fixed
speed governor at 1,950 rpm.
1.6 GENERATOR AC
CONNECTION SYSTEM
The generator is equipped with dual stator power
windings as shown in Figure 1.1.
Figure 1.1 - Connections for 120/240 Dual
Voltage
T1 T2 T3
(RED) ^ wh I t D ^ BLACK)
-----
llA
-----
1
................
\ 22
1 1
--------
44A
----1
33 0.
CB i j CB l
J
..........
■d H 1 ’ '
• The AC connection system uses a GROUNDED
neutral. A separate green ground wire is connected
to the recreational vehicle’s junction box.
• For this QUIETPACT™ unit, each stator winding can
support 120-volt, 60-Hertz, AC electrical output
(3,600 rpm). When the two stator windings are con­
nected in series, the unit can generate an output of
240 volts AC.
NOTE:
Do NOT connect loads in excess of circuit
breaker ratings.