DANGER:
Indicates the presence of immediate hazards which will cause severe
personal injury, death or substantial property damage if ignored.
WARNING:
Indicates the presence of hazards or unsafe practices which could cause
severe personal injury, death or substantial property damage if ignored.
CAUTION:
Indicates the presence of hazards or unsafe practices which could cause
minor personal injury or product or property damage if ignored.
NOTE:
Indicates special instructions on installation, operation, or maintenance which
are important but not related to personal injury hazards.
WARNING—CALIFORNIA PROPOSITION
65:
This product contains chemicals known to the
State of California to cause cancer, birth defects or
other reproductive harm.
WARNINGS
Pay Attention to These Terms
4
WARNING:
To minimize the possibility of improper
operation, serious personal injury, fire, or damage to
the heater:
•
Always keep the area around the heater free of
combustible materials, gasoline, and other flam-
mable liquids and vapors.
•
Heater should never be covered or have any
blockage to the flow of fresh air to the heater.
WARNING:
Do not use this heater if any part has
been under water. Immediately call a qualified
service technician to inspect the heater and to
replace any part of the control system and any gas
control which has been under water.
WARNING:
Should overheating occur or the gas
supply valve fail to shut, do not turn off or disconnect
the electrical supply to the heater. Instead, shut off
the gas supply at a location external to the heater.
DANGER:
Make sure the gas on which the heater
will operate is the same type as that specified on the
heater rating plate.
DANGER:
Failure to install the draft hood on indoor
installations and properly vent the heater to the
outdoors as outlined in the Venting section of this
manual can result in unsafe operation of the heater.
To avoid the risk of fire, explosion, or asphyxiation
from carbon monoxide, never operate this heater
unless it is properly vented and has an adequate air
supply for proper operation. Be sure to inspect the
vent system for proper installation at initial start-up;
and at least annually thereafter. Refer to the
Maintenance section of this manual for more
information regarding vent system inspections.
WARNING:
Both natural gas and propane have an
odorant added to aid in detecting a gas leak. Some
people may not physically be able to smell or
recognize this odorant. If you are unsure or
unfamiliar with the smell of natural gas or propane,
ask your local gas supplier. Other conditions, such
as "odorant fade," which causes the odorant to
diminish in intensity, can also hide, camouflage, or
otherwise make detecting a gas leak by smell more
difficult.
WARNING:
UL recognized fuel gas detectors are
recommended in all enclosed propane and natural
gas applications wherein there is a potential for an
explosive mixture of fuel gas to accumulate and their
installation should be in accordance with the
detector manufacturer's recommendations and/or
local laws, rules, regulations, or customs.
DANGER:
When servicing or replacing components
that are in direct contact with the water, be certain
that:
• There is no pressure in the heater. (Pull the release
on the relief valve. Do not depend on the pressure
gauge reading).
• The heater water is not hot.
• The electrical power is off.
Summary of Contents for 0042B
Page 14: ...VENT DAMPER 14 ...
Page 20: ...Wiring Diagrams 20 ...
Page 21: ...21 ...
Page 24: ...Fig 23 Power Vent System with Zone Valve Taco 24 ...
Page 25: ...25 Fig 23 Power Vent System with Zone Valve Honeywell ...
