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Table of Contents
WARNING
! !
WARNING
Primary Safety Warning...............................1-3
Pre-Installation Instructions...............................3
Parts Diagram and List for GU28/GU32....4-5
Parts Diagram and List for GU20/GU26....6-7
Operating Instructions.................................8-9
Use & Care Instructions
• Maintenance and Service............................10
• Troubleshooting.............................................11
• Specifications................................................12
• Installation................................................13-24
• Gas Supply Piping....................................25
• Water Supply Connection...................26-27
• Electrical Connection............................28-30
• Liquid Propane Gas Conversion.........31-32
• Plumbing Diagrams.................................33-34
• Warranty Terms..........................................35
WARNING
! !
If you detect abnormal combustion or ab-
normal odors, or an earthquake, tornado or
fire:
1. Turn off the hot water supply at the faucet.
2. Turn off the power to the hot water heater by
unplugging.
3. Turn off gas and water at the manual shut-off
valves.
4. Consult the nearest service personnel.
This will help prevent fire, electrical shock or
damage to the unit.
DO NOT place combustible chemicals or
materials such as laundry, newspapers, hair
spray, spray detergent, oil, gasoline, benzene
etc., near the water heater or the exhaust vent
terminal.
LEAVE the proper clearance between the
water heater and nearby objects (trees, timber,
boxes and flammable materials etc...)
BE SURE to electrically ground the unit.
DO NOT touch the power cord with wet hands.
KEEP power cord free of dust.
DO NOT use a broken or modified power cord.
DO NOT bind, bend or stretch power cord.
DO NOT connect the water heater to a solar
water heater.
Never use this hot water heater unless it
is completely filled with water.
To prevent damage to the tank, the tank must be
filled with water. Water must be running from the
hot water faucet before turning the main gas valve
to the water heater to "ON".
! !
WARNING
Turning Off The Appliance:
Turn off all electrical power by unplugging the power
cord from the outlet if service is to be performed.
Turn the gas shut-off valve located separately of
the water heater to the OFF position.
1.
2.
CAUTION
If you do not follow these instructions exactly,
a fire or explosion could result causing property
damage, personal injury or loss of life.
!
!
WARNING
CAUTION
Do not install water heater where flammable
products will be stored.
Read and follow the water heater warnings and
instructions. If the operator's manual is missing,
contact the retailer or manufacturer.
! !
WARNING
! !
DANGER
_
Hot water temperature over 125 F can cause
severe burns instantly or death from scalding.
Children, disabled and elderly are at the highest
risk of being scalded.
Temperature limiting valves are available, ask
your service professional.
Check the temperature of the running hot water
by hand before taking a shower.
Check to see that the gas supplied matches
the gas type on the rating plate.
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