Raypak RAYTHERM 133, Installation & Operating Instructions Manual

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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.
WARNINGS—
Pay Attention to These Terms
DANGER:
Failure to install the draft hood and
properly vent the water heater to the outdoors as
outlined in the Venting section of this manual can
result in unsafe operation of the water heater. To
avoid the risk of fire, explosion, or asphyxiation from
carbon monoxide, never operate this water 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:
Propane appliances should not be
installed below-grade (for example, in a basement) if
such installation is prohibited by federal, state and/or
local laws, rules, regulations or customs.
WARNING:
Both propane and natural gas have an
odorant added to help detection. Some people may
not physically be able to smell or recognize this
odorant. If unsure or unfamiliar about the smell
associated with propane or natural gas, ask the gas
supplier. Other conditions, such as "Odorant Fade",
which causes the odorant to "fade", or diminish in
intensity can also hide or camouflage a gas leak.
DANGER:
Make sure the gas on which the heater
will operate is the same type as that specified on the
heater rating plate.
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.
WARNING:
All venting types must be of the same
material or product throughout the entire exhaust
installation to ensure proper securing and sealing.
WARNING:
Altering any Raypak pressure vessel
by installing replacement heat exchangers, tube
bundle headers, or any ASME parts not
manufactured and/or approved by Raypak will
instantly void the ASME and/or CSA ratings of the
vessel and any Raypak warranty on the vessel.
Altering the ASME and/or CSA ratings of the vessel
also violates national, state, and local approval
codes.
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:
Risk of electrical shock. More than one
disconnect switch may be required to de-energize
the equipment before servicing.
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.
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.