I) INTRODUCTION
Thank you for purchasing a GSW Power Direct Vented
Water Heater.
Properly installed and maintained, it will pro-
vide years of trouble free service.
This gas-fired water heater has been developed to produce
potable hot water for normal residential demands and may
also be used in combination with space heating applica-
tions. Any deviation from these applications could affect
your warranty.
User Responsibilities
This manual has been prepared to acquaint you with the
installation, operation and maintenance of your gas water
heater and provide important safety information in these
areas. It is your responsibility to ensure that your water
heater is properly installed and cared for.
FAILURE TO FOLLOW THE INSTRUCTIONS IN THIS
MANUAL MAY RESULT IN SERIOUS BODILY INJURY
AND/OR PROPERTY DAMAGE. THOROUGHLY READ
AND UNDERSTAND ALL INSTRUCTIONS BEFORE YOU
ATTEMPT TO INSTALL, OPERATE OR MAINTAIN THIS
HEATER.
Installation and service requires trade knowledge in the
areas of plumbing, electricity, venting, air supply and gas
supply. If you lack these skills, or have difficulty under-
standing these instructions, you should not proceed. Enlist
the help of a qualified service technician to install this water
heater.
Examples of qualified service technicians include those
trained in the plumbing and heating industry, local gas utili-
ty personnel, or an authorized service person.
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Your safety and the safety of others is very important.
We have provided many important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
All safety messages will tell you what the potential hazard is, tell you how to reduce the
chance of injury, and tell you what can happen if the instructions are not followed.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word
“DANGER” or “WARNING”.
DANGER
WARNING
You can be killed or seriously injured if you don’t immediately follow
instructions.
You can be killed or seriously injured if you don’t follow instructions.
The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to
publish a list of substances known to the State of California to cause cancer, birth defects, or other
reproductive harm, and requires businesses to warn of potential exposure to such substances.
WARNING: This product contains a chemical known to the State of California to cause cancer, birth
defects, or other reproductive harm.
This appliance can cause low-level exposure to some of the substances listed, including formalde-
hyde, carbon monoxide, and soot.
CAUTION
Hydrogen gas can be produced in a hot water system served by this heater that has not been used
for a long period of time (generally two (2) weeks or more).
Hydrogen gas is extremely flammable
and can ignite when exposed to a spark or flame.
To reduce the risk of injury under these condi-
tions, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink
before using any electrical appliance connected to the hot water system. Use caution in opening
faucets. If hydrogen is present, there will probably be an unusual sound such as air escaping through
the pipe as the water begins to flow. There should be no smoking or open flame near the faucet at
the time it is open.
Do not use this appliance if any part has been under water. Immediately call a qualified service tech-
nician. Water heaters subjected to flood conditions or anytime the gas controls, main burner or pilot
have been submerged in water require replacement of the entire water heater.
