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1. Fouled hull bottom.
2. Damaged and fouled running gear (propeller and trim
tabs).
3. Incorrect selection of propeller size.
S. CO Detection Systems
Carbon Monoxide (CO) Detectors are optional equipment
on the Vista models. This may also be installed by your
Four Winns dealer.
NOTICE
For information on CO Detection Systems, see
American Boat and Yacht Council (ABYC
Manual) Section A-24, "Carbon Monoxide Detec-
tors".
Even with the best of boat design and construction plus
utmost care in inspection, operation, and maintenance,
hazardous levels of CO may still be present in accommo-
dation spaces under certain conditions. Continuing ob-
servation of passengers for symptoms of CO intoxication
can be supplemented by an alarm type CO detection
device in the accommodation space.
Current CO detector technology can be broken down into
three major categories: single-point, multi-point, and fully-
integrated; the difference being the degree to which each
type of unit considers exposure time.
1. Single-point Detection: The single-point detector will
sound the alarm whenever the detector senses that
a single pre-set PPM (Parts Per Million) level of CO
has been exceeded.
2. Multi-point Detection: The multi-point detector alarm
will sound at a number of selected CO levels. The
multi-point detector may include several different
measuring time periods with their corresponding dif-
ferent PPM CO level alarm settings.
3. Fully-integrated Detection: The fully-integrated de-
tector will sound an alarm to any combination of PPM
CO level and exposure time that would cause a health
hazard.
Detection devices should meet the requirements of ABYC
A-24 "Carbon Monoxide Detection Systems on Boats".
Vista Owners Manual
10/93
Section H
Page 7
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