SAFE-T-ALERT 35-742 User Manual

RECREATIONAL VEHICLE (RV)

Combination Carbon Monoxide and Gas Alarm

USER’S MANUAL

Model 35-742

PATENT US 7,248,156 ALL RIGHTS RESERVED 35RV052008-2

ATTENTION: This user’s manual contains important Carbon
Monoxide (CO) and gas alarm installation, operation, troubleshooting
and warranty information. Read, follow, and keep this manual for
future reference.

NOTE: If you install or purchase this alarm for another person, give
this manual to that person.

IMPORTANT: This unit must be replaced within five years of its
production date. Record the manufacture date in the section,
Owner’s Replacement Record, in this manual for future use. The
replacement date indicates the date beyond which the device may no
longer detect carbon monoxide, propane or natural gas accurately.

DUAL SENSOR TECHNOLOGY

The SAFE-T-ALERT™ 35 Series combination CO / Gas Alarm is an alarm that
combines into a single compact system, a powerful alarm that detects both
Carbon Monoxide (CO) and explosive gases Propane (LPG) and Methane
(Natural Gas). The 35 Series uses the latest microprocessor technology
combined with two electronic self-cleaning sensors that operate independently
of each other. The combined unit can detect both CO and explosive gases
simultaneously.

This detector is UL Listed as a CO, Propane and Methane (Natural Gas)
detector for RV use. Other explosive gases detected, but not tested by UL,
include Acetone, Alcohol, Butane, and Gasoline all of which you may have
in your RV.

To prevent false alarms from brief “puffs” of gas the detector has a recheck
cycle before alarming. If high levels of gas remain during the recheck cycle,
the detector will alarm.

The electronic CO sensor in your SAFE-T-ALERTTM CO alarm is
very sensitive to CO gas. It will not react to safe levels of most other
gases.

WHY EVERY RV NEEDS A 35 SERIES CO AND GAS ALARM

Everyone is at risk for carbon monoxide poisoning! Particularly sensitive are
children, pregnant women, the elderly and people with lung or heart disease or
anemia! Carbon monoxide (CO) is an odorless, colorless gas that prevents the
blood from carrying oxygen to vital organs. CO is 200 times more likely to
replace oxygen in the blood. The Consumer Product Safety Commission
(CPSC) recommends using at least one CO alarm located outside of
sleeping areas. For the best security, locate a CO alarm in each sleeping
area. Safe-T-Alert CO alarms are available for secondary installations.

Propane gas can cause explosions! Using propane requires taking
safety precautions to avoid injury. LP gas is usually identified by an
unpleasant odor. Certain conditions may make some people unable
to detect this unpleasant odor. These conditions include advanced
age, colds, allergies, and the use of tobacco, alcohol or drugs that
may diminish the sense of smell.

ABOUT THIS ALARM

Because CO is a colorless, odorless, tasteless and highly poisonous gas; it
can endanger lives even at low levels of concentration. The CO Alarm
will alert you to potentially dangerous situations. The following

symptoms may be related to CO POISONING. Discuss these
symptoms with ALL household members and RV guests:

• Mild Exposure: Headaches, running nose, sore or watery eyes, often

described as “flu-like” symptoms.

• Medium Exposure: Dizziness, drowsiness, vomiting.

• Extreme Exposure: Unconsciousness, brain damage and death.

NOTE: Reported cases of CO gas poisoning indicate that while
victims are aware they are not well, they are disoriented. They are unable
to save themselves by exiting the RV or calling for assistance. Small

children and pets may be affected first.

Your SAFE-T-ALERTTM 35-742 alarm helps protect your household
members and guests from CO produced while using your RV. CO gas is
produced when any type of fuel is incompletely burned. Potential sources
of CO in and around your RV can include gas or diesel engine exhaust,
portable space heaters, gas stoves and ovens, furnaces, defective engine
exhaust systems, portable grills, other nearby RVs, portable generators,
generator exhaust, and other propane-powered appliances. All are sources
of CO.
The following are also sources of CO that may affect your RV:

• Extended operation of unvented fuel burning appliances can build up
high CO levels.

• An idling vehicle in an open or closed garage.

• Temperature inversions can trap exhaust near the ground.

• CO build up can be caused by reverse/negative venting of fuel burning

appliances including; 1) Clogged, loose or faulty stacks or chimneys of
(clothes dryers, furnaces and water heaters, etc.), 2) wind direction
and/or velocity, 3) simultaneous operation of multiple fuel burning
appliances, and/or exhaust fans.

!

WARNING:

LIMITATIONS OF CO and GAS ALARMS

THIS ALARM WILL NOT WORK WITHOUT POWER. Some

reasons for no alarm power are; a blown or missing fuse, broken wire, a
faulty wire connection or circuit breaker, a discharged battery, cut lead
wires, or improper supply (+) or ground (-) connections.

THIS ALARM WILL ONLY INDICATE THE PRESENCE OF GAS
AT THE SENSOR. CO or explosive propane/natural gas gases may be

present in other areas. MTI recommends installing CO alarms in all sleeping
areas. Do not block or cover the alarm with any object that can prevent a
gas leak or carbon monoxide from reaching the sensor.

THIS ALARM IS INTENDED FOR USE IN RV's. It is intended for
use in inside locations of a RV. It is not designed to measure compliance

with commercial and industrial standards.
THIS ALARM MAY NOT BE HEARD. The alarm’s loudness is

designed to meet or exceed regulatory standards; however, the alarm may
not be heard if alarms are located in remote locations or behind closed
doors. Persons who are hard-of-hearing, have consumed alcoholic
beverages, taken prescription, non-prescription or illegal drugs, may not
hear the alarm.

THIS ALARM IS DESIGNED TO DETECT CARBON MONOXIDE
AND PROPANE GAS. THE ALARM IS NOT DESIGNED TO
DETECT SMOKE, OR FIRE.

THIS ALARM MAY NOT ALARM AT LOW CO LEVELS It is not

Bedroom

Bath

Kitchen

Do not install within 12" of

a window that can open

Do not install within

12" of a door

drapes or furniture

Recommended Alarm Location

Bedroom

Living Area

Travel Trailer

Recommended Alarm Location

1

Figure 2

designed to measure compliance with the Occupational Safety Health
Administration (OSHA) commercial or industrial standards. Individuals

with medical problems may consider using warning devices, which provide
audible and visual signals for CO concentrations under 30 ppm.

THIS ALARM IS NOT A REPLACEMENT FOR INSURANCE.
Always be sure your RV is fully insured.

HOW TO PROTECT YOUR FAMILY

CAUTION- The SAFE-T-ALERTTM 35 series combination CO and Gas
Alarm is designed to protect individuals from the acute effects of carbon
monoxide exposure and gas leaks. It will not fully safeguard individuals
with specific medical conditions. If in doubt, consult a medical
practitioner.

To protect your family, you should:

• INSTALL THE ALARM PROPERLY. Carefully read and follow

ALL the instructions in this manual. Test your unit every week. Alarms
that do not work will not alert you to hazardous levels of CO or
explosive gas. See the section, Test Procedure, in this manual for
further information.

• MAKE REGULAR VISUAL INSPECTIONS. Check all fuel burning

equipment including gas water-heaters, kitchen gas stoves, space heaters,
gas dryers and all pilot lights. Check the color of the pilot flame. The
color should be blue.

• MAKE REGULAR VISUAL INSPECTIONS OF THE ENGINE

AND GENERATOR EXHAUST SYSTEMS. Cracked exhaust systems
can allow CO to enter the living area.

• PROFESSIONALLY MAINTAIN YOUR ENGINE AND

GENERATOR. Although gas engines and generators produce CO, a

poorly tuned engine and generator will produce greater amounts CO.

• If you smell unusual odors you may have a gas leak, immediately

call a local propane gas supplier or fire department to check for
possible leaks.

WHERE TO INSTALL

• Install the 35 series in the kitchen area near sources of a potential gas

leaks. Some potential sources are a furnace, refrigerator, stove or oven.
If potential sources of a gas leak are in separate areas, MTI
recommends installing a gas alarm in each area.

• The Consumer Product Safety Commission recommends installing

a CO alarm outside the sleeping area. The 35 series combination
CO and gas alarm complies with that recommendation. For added
protection, MTI suggests installing a stand-alone CO alarm in the
bedroom area.

• INSTALL ALARM at least 4 inches but not more than 20 inches off

the floor.

WHERE NOT TO INSTALL 35 SERIES ALARMS

• DO NOT INSTALL behind furniture, drapes, in closets or areas that

will block gas flow to the alarm.

• DO NOT INSTALL within 12 inches (30cm) of opening windows,

exterior doors, heating or return vents, or other drafty areas.

• DO NOT INSTALL on an outside wall.

• DO NOT INSTALL on a wall switch controlled by a power line,

ground fault circuit or to a circuit breaker.

• NOTE: Older RVs may have little or no insulation and therefore are

draftier. Carefully consider mounting locations.

The following diagrams provide additional alarm installation information:

Figure

Motorhome

Kitchen Area

DO NOT INSTALL
Figure 3

Do not install

Do Not install behind

within 12" of vents

INSTALLATION INSTRUCTIONS

Model 35-742

!

WARNING

FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT
IN A MALFUNCTION OR FAILURE OF THE ALARM AND MAY
VOID THE WARRANTY.

SHOCK HAZARD: Turn off power before installing.
Power Supply 12 VDC.

Recommended Wire Size 14 GA. TO 18 GA.
Connect the alarm to a properly fused circuit, maximum over

protection device rating 15 amps.

SPECIAL WIRING NOTICE: When replacing CCI Controls LP Gas
Leak Detectors they may have two power leads. Safe-T-Alert units have one
power lead. Simply connect the Safe-T-Alert power lead (Red) to the
coach/house power supply and cap or remove the second power lead. DO

NOT CONNECT BOTH POWER LEADS TO THE Safe-T-Alert
ALARM – this will result in a dead chassis battery.