Rheem Residential Indoor Gas Tankless Water Heater Use And Care Manual page 2

Safety Information
Safety Precautions. . . . . . . 3-6
LP Gas Models . . . . . . . . . . . 5
Installation Instructions
Location . . . . . . . . . . . . . . . . . 7
Water Connections. . . . . . 9-10
Gas Supply. . . . . . . . . . . . . . 11
High Altitude . . . . . . . . . . . .11
Venting . . . . . . . . . . . . . . 12.15
Electrical Connection. . . . . . 16
Typical Installation . . . . . . . .17
Pipe Insulation . . . . . . . . . . . 18
Installation Checklist . . . . . .19
Operating Instructions
Lighting Instructions . . . . . . 20
Water Temperature. . . . . 21, 22
Care and Cleaning
Maintenance. . . . . . . . . . . . . 23
Housekeeping . . . . . . . . 23, 24
Vent Inspection . . . . . . . . . . .24
Burnner Inspection.............24
Extended Shut-Down. . . . . . 24
Draining . . . . . . . . . . . . . . . . 25
Troubleshooting Tips
Before You Call . . . . . . . . .
For Service . . . . . . . . . . . 26,27
Customer Service
Parts List . . . . . . . . . . . . . . . 28
2
FOR YOUR RECORDS
Write the model and serial numbers here:
#
#
You can find them on a label on the appliance.
Staple sales slip or cancelled check here.
Proof of the original purchase date is needed to
obtain service under the warranty
READ THIS MANUAL
Inside you will find many helpful hints on how
to use and maintain your water heater properly.
A little preventive care on your part can save you
time and money over the life of your water heater.
You'll find many answers to common problems in the
Troubleshooting Guide. If you review the chart of
Troubleshooting Tips first, you may not need to call
for service.
READ THE SAFETY INFORMATION
Your safety and the safety of others are very important.
There are many important safety messages in this
manual and on your appliance. Always read and obey
all safety messages.
This is the safety alert symbol. Recognize this
symbol as an indication of Important Safety
Information!
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
CAUTION or NOTICE .
These words mean:
DANGER An imminently hazardous situation
that will result in death or serious
injury.
WARNING A potentially hazardous situation that
could result in death or serious injury
and/or damage to property.
CAUTION A potentially hazardous situation that
may result in minor or moderate
injury.
Notice:
Attention is called to observe a
specified procedure or maintain
a specific condition.
DANGER , WARNING ,