2
ATH15-501.0 (
Supplement to ATH15-500.10
)
SPECIAL PRECAUTIONS
SPECIAL PRECAUTIONS
THE INSTALLATION AND MAINTENANCE INSTRUCTIONS
IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE
SAFE, EFFICIENT AND TROUBLE-FREE OPERATION. IN
ADDITION, PARTICULAR CARE MUST BE EXERCISED
REGARDING THE SPECIAL PRECAUTIONS LISTED
BELOW. FAILURE TO PROPERLY ADDRESS THESE
CRITICAL AREAS COULD RESULT IN PROPERTY
DAMAGE OR LOSS, PERSONAL INJURY, OR DEATH.
THESE INSTRUCTIONS ARE SUBJECT TO ANY MORE
RESTRICTIVE LOCAL OR NATIONAL CODES.
HAZARD INTENSITY LEVELS
1.
DANGER:
Indicates an imminently hazardous situation
which, if not avoided, WILL result in death or serious injury.
2.
WARNING:
Indicates a potentially hazardous situation
which, if not avoided, COULD result in death or serious injury.
3.
CAUTION:
Indicates a potentially hazardous situation
which, if not avoided, MAY result in minor or moderate injury.
4.
IMPORTANT:
Indicates a situation which, if not avoided,
MAY result in a potential safety concern.
DANGER
Appliances must not be installed where they may be exposed
to a potentially explosive or flammable atmosphere.
1. As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
2. Appliances are designed for outdoor installation only.
DO NOT LOCATE THIS APPLIANCE INDOORS.
3. Purging of air from gas lines should be performed as
described in ANSI Z223.1 - latest edition “National Fuel
Gas Code”, or in Canada in CAN/CGA-B149 codes.
4. When servicing the unit, some components may be hot
enough to cause pain or injury. Allow time for cooling of
hot components before servicing.
5. Do not reuse any mechanical or electrical component
which has been wet. Such components must be
replaced.
WARNING
IMPORTANT
1. These instructions must also be used in conjunction with
the Installation and Service Manual originally shipped
with the model MPR unit, literature #ATH15-500.10, in
addition to any other accompanying component supplier
literature.
2. To prevent premature heat exchanger failure, do
not locate ANY gas-fired appliances in areas where
corrosive vapors (i.e. chlorinated, halogenated or acid)
are present in the atmosphere.
3. To prevent premature heat exchanger failure, the input
to the appliance, as indicated on the serial plate, must
not exceed the rated input by more than 5%.
4. To prevent premature heat exchanger failure, check
to be sure the blower has been set to deliver the
proper airflow for the application. Refer to the Blower
Adjustments section in ATH15-500.10.
5. Start-up and adjustment procedures must be performed
by a qualified service agency.
8. When servicing or repairing this equipment, use only
factory-approved service replacement parts. Refer to
the rating plate on the appliance for complete appliance
model number, serial number, and company address.
Any substitution of parts or controls not approved by the
factory will be at the owner's risk.
WARNING
1. Improper installation, adjustment, alteration, service
or maintenance can cause property damage, injury or
death, and could cause exposure to substances which
have been determined by various state agencies to
cause cancer, birth defects or other reproductive harm.
Read the installation, operating and maintenance
instructions thoroughly before installing or servicing this
equipment.
2. Disconnect power supply before making wiring
connections or working on this equipment. Follow all
applicable safety procedures to prevent accidental
power up. Failure to do so can result in injury or death
from electrical shock or moving parts and may cause
equipment damage.
3. For units equipped for dual power supply sources, both
sources of power must be disconnected to prevent
electrical shock and equipment damage.
4. All field gas piping must be pressure/leak tested prior
to operation. Never use an open flame. Use a soap
solution or equivalent for testing.
5. Gas pressure to appliance controls must never exceed
14" W.C. (1/2 psi).
6. To reduce the opportunity for condensation, the minimum
sea level gas input to the appliance, as indicated on the
serial plate, must not be less than 5% below the rated
input, or 5% below the minimum rated input of dual rated
units.
7. When the dead front disconnect switch(es) (for main
unit and/or powered convenience outlet option) is in the
“OFF” position, supply power remains energized at the
line (supply) side of the dead front disconnect switch(es).
The switch body is located inside of another junction
box to protect against contact with the live wiring.
The junction box must not be disassembled unless
the main power supply from the building to the unit is
de-energized.
CAUTION
