5
WARNINGS:
•
The installation of gas piping must conform to local utility
company requirements and/or in the absence of local codes,
use the latest edition of National Fuel Gas Code (NFGC),
ANSI Z223.1/NFPA 54, or CAN/CSA B149.1, Natural Gas and
Propane Installation Code.
• If inlet gas pressure is out of allowable range [4.0” w.c.
(1.0kPa) – 10.5” w.c. (2.6kPa)] for Natural Gas, or [8.0”
w.c. (2.0kPa) – 13.0” w.c. (3.2kPa)] for LP gas, a gas
pressure regulator must be installed to maintain the
allowable inlet gas pressure.
• Should overheating occur or the gas supply fail to shut off,
turn off the manual gas control valve to the water heater.
CAUTIONS:
•
DO NOT
attempt repair of electrical wiring, gas piping,
remote control, burners, vent connectors, or other safety
devices. Refer repairs to qualified service personnel.
• Turn off the manual gas shut-off valve if the water heater has
been subjected to overheating, fire, flood, physical damage,
or if the gas supply fails to shut off.
•
DO NOT
turn on the water heater unless the water
and gas supplies are completely opened.
NOTICE:
• The factory setting allows operating temperatures between
100°F (38°C) and 120°F (49°C). Temperatures of 85°F
(29°C) and up to 140°F (60°C) can be achieved with the
MAIN (UMC-117) remote control. Temperatures of 85°F
(29°C) can be achieved with the Bath (USC-117 or USC2-
117) remote control. Only qualified service personnel
should perform this adjustment. Only factory-authorized
remote control(s) should be used.
Natural Gas and Liquefied Petroleum Safety
DANGERS:
• Never attempt to convert the water heater from natural
gas to LP. The water heater should only use the fuel type
in accordance with listing on data plate—natural gas for
natural gas units and LP for LP units. Any other fuel usage
will result in death or serious personal injury from fire and/
or explosion. This water heater is not certified for any other
fuel type.
• Both natural gas and propane (LP) 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 LP,
ask the gas supplier. Other conditions, such as “odorant
fade,” which causes the odorant to diminish in intensity,
can also hide or camouflage a gas leak.
• Water heaters using LP gas are different from natural gas
models. A natural gas water heater will not function safely
on LP and vice versa.
• LP water heaters 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.
• LP must be used with great caution. It is heavier than air
and will collect first in lower areas, making it hard to detect
at nose level.
• Before attempting to light the water heater, make sure to
look and smell for gas leaks. Use a soapy solution to check
all gas fittings and connections. Bubbling at a connection
indicates a leak that must be corrected. When smelling to
detect a gas leak, be sure to also sniff near the floor.
• Gas detectors are recommended in LP and natural gas
applications and their installation should be in accordance
with the detector manufacturer’s recommendations and/or
local laws, rules, regulations, or customs.
• Combustible materials, such as clothing, cleaning materials,
or flammable liquids, must not be placed in the vicinity of
the water heater.
• If a gas leak is present or suspected:
–
DO NOT
attempt to find the cause yourself.
– Never use an open flame to test for gas leaks. The gas
can ignite resulting in death, personal injury, or property
damage.
– Follow the steps listed under “What to Do If You Smell
Gas” found on the front cover of this manual.
Safety
IMPORTANT SAFETY INFORMATION
