Rheem Manufacturing GP Series User manual

Part No. AP12171-4 (3/01) Pub. No. 49-50008-4 03-01JR
Manufact ured under t rademark license by:
Rheem Manufacturing Company
P. O . B o x 2 4 4 0 2 0 , M o n t g o m e r y , A L 3 6 12 4 - 4 0 2 0
FOR YOUR SAFETY!
—Do not s t o r e or u s e gas ol i n e or o t h er f l amma bl e
vapor s or l i qui d s or ot her combus t i bl e mat er i al s
in t he vicinit y of t his or any ot her appliance. To
do so may result in an explosion or fire.
— WHAT TO DO IF YOU SMELL GAS
●Do n ot t r y t o l i g ht any a ppl i a nce.
●Do n ot t ou ch a ny el ect r i c a l s wi t ch ; d o not
use any phone in your building.
●Immediat ely call your gas supplier from a
neighbor’s phone. Follow t he gas supplier’s
inst ruct ions.
●If you cannot reach your gas supplier, call
thefiredepartment.
●Do n ot r et ur n t o yo u r ho me u nt i l au t hor i zed
by t he gas supplier or f ire depar t ment .
— Improper inst allat ion, adjust ment , alt erat ion,
service or maint enance can cause injury,
propert y damage or deat h. Refer t o t his
manual. Inst allat ion and service must be
performed by a qualif ied inst aller, service
agency or t he gas supplier.
WARNING: If the information in these instructions is not followed exactly,
a fire or explosion may result causing property damage, personal injury or death.
Model: HG Series, GG Series, GP Series, PG Series, SG Series,
SG Series with SmartWater™ Ignition System
The pu r pos e o f t h i s ma nual i s t wof ol d : on e, f or t he i ns t a l l i ng cont r a ct or, t o p r ovi d e r eq ui r ement s and
recommendat ions for t he proper inst allat ion and adjust ment of t he wat er heat er; and t wo,
for the owner–operat or, to explain the feat ures, operat ion, safety precautions, maint enance and
troubleshootingof thewater heater.This manual includes aparts list.
It is imperat ive t hat all persons who are expect ed t o inst all, operat e or adjust t his wat er heat er read
theinstructions carefullysothat theymayunderstand howtodoso.
Any quest ions regarding t he operat ion, maint enance, service or warrant y of t his wat er heat er should
be direct ed t o t he ent it y f rom whom it was purchased. If addit ional inf ormat ion is required, refer t o
thesectiononHowtoObtainServiceAssistance.
Do no t d es t r oy t hi s manua l . Pl ea s e r ea d ca r ef u l l y a nd keep i n a s a f e p l ac e f o r f ut ur e r ef er en ce.
Recogni ze t hi s s ymbol a s an i nd i cat i on o f I mpor t a nt Saf et y Inf or mat i on!
Proposition 65: This appliance cont ains fiberglass insulat ion. Respirable part icles of
fiberglass are known to the State of California to cause cancer. Exhaust gas from this
appliance cont ains chemicals, including carbon monoxide, known t o t he St at e of California t o
cause birt h defect s or ot her reproduct ive harm.
Residential 30, 40 and 50 Gallon
Use & Care Manual
With Installation Instructions for the Contractor
Pr i n t ed i n US A
Water Heaters
Gas Residential
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Safety Information
Safet y Precaut ions. . . . . . 3–6
LP Gas Models . . . . . . . . . . . 4
Installation Instructions
Locat ion . . . . . . . . . . . . . . . . . 7
Wa t er Co n n e c t i o n s . . . . . . . . 9
Gas Supply. . . . . . . . . . . . . . . 11
Po t a b l e S p a c e H e a t i n g . . . . 13
Operating Instructions
Light ing Inst ruct ions . . . 14, 15
Wa t er Te m p e r a t u r e . . . . . . . . 16
Adjust ment s . . . . . . . . . . . . . 17
Care and Cleaning
Draining . . . . . . . . . . . . . . . . . 18
Burner Inspect ion . . . . . . . . 19
Ext ended Shut -Down . . . . . 19
Troubleshooting Tips
Before You Call
Fo r S er vi c e . . . . . . . . . . . 2 0 , 2 1
Customer Service
Pa r t s L i s t . . . . . . . . . . . . . . . 2 2
Product Regist rat ion. . 23, 24
Inside you will f ind many helpful hint s on how t o use and maint ain
your wat er heat er pr operly. Just a lit t le prevent ive care on your
part can save you a great deal of t ime and money over t he life of
your wat er heat er.
Yo u ’ l l f i n d m a n y a n s wer s t o c o m m o n p r o b l e m s i n t h e B ef o r e Yo u
Ca l l Fo r S er vi c e s ec t i o n . I f yo u r evi ew o u r c h a r t o f Tr o u bl es h o o t i n g
Ti ps f i r s t , you may not need t o cal l f or s er vi c e at al l .
READ THIS MANUAL
FOR YOUR RECORDS
Write the model and serial numbers here:
#
#
Yo u c a n f i n d t h em o n a l a b el o n t h e a p p l i a n c e.
Staple sales slip or cancelled check here.
Pr o o f o f t h e o r i g i n a l p u r c h a s e d a t e i s n eed ed t o o b t a i n s er vi c e
under t he warrant y.
IMPORTANT!
Fill out and r et ur n t he Cons umer Pr oduct Regi s t rat i on Card t hat is
in t he back of t his manual.
If you do need service, you can relax knowing help is only a phone
call away. For service call 8 0 0 -431-1549.
IF YOU NEED SERVICE
Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
2

Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Be sure t o read and underst and t he ent ire Use and Care Manual before at t empt ing t o inst all or operat e
this water heater.It maysaveyoutimeandcost.Payparticular attentiontotheSafetyInstructions.
Fai l u r e t o f ol l ow t hes e war ni ng s co ul d r es u l t i n s er i o us bod i l y i nj ur y or d eat h . Sho ul d yo u ha ve pr obl ems
underst anding t he inst ruct ions in t his manual, or have any quest ions, STOP, and get help f rom a qualif ied
service t echnician, or t he local elect ric ut ilit y.
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
3
Fai l ur e t o i n s t a l l t he d r af t ho od a nd p r o per l y vent t he wat er heat er t o t he o u t d oo r s as
out lined in t he Vent ing Sect ion of t he Inst allat ion Inst ruct ions in t his manual can result in
unsafe operat ion of t he wat er heat er. To avoid t he risk of fire, explosion, or asphyxiat ion
from carbon monoxide, never operatethis water heater unless it is properly vented and has
an adequat e air supply for proper operat ion. Be sure t o inspect t he vent syst em for proper
inst allat ion at init ial st art -up; and at least annually t hereaft er. Refer t o t he Care and
Cl ea n i n g s ec t i o n o f t h i s m a n u a l f o r m o r e i n f o r m a t i o n r eg a r d i n g ven t s y s t em i n s p ec t i o n .
DANGER!
INSTALL THE DRAFT HOOD AND PROPERLY VENT THE
WATER HEATER…
Gasoline, as well as ot her f lammable mat erials and liquids (adhesives, solvent s, et c.), and
thevapors theyproduceareextremelydangerous.DONOThandle,useor storegasolineor
ot her flammable or combust ible mat erials anywhere near or in t he vicinit y of a wat er heat er.
Be sure t o read and follow t he warning label pict ured below and ot her labels on t he wat er
heat er, as well as t he warnings print ed in t his manual. Failure t o do so can result in
propert y damage, bodily injury or deat h.
WARNING!
DANGER
!
FLAMMABLES
Flammable Vapors
Vapors from flammable
liquids will explode and
catch fire causing death or
severe burns
Do not use or store flammable
products such as gasoline,
solvents or adhesives in the
same room or area near the
water heater.
Keep flammable products:
1. far away from heater,
2. in approved containers,
3. tightly closed and
4. out of children’s reach.
Water heater has a main
burner and pilot flame.
The pilot flame:
1. is on all the time and
2. will ignite flammable
vapors.
Vapors:
1. cannot be seen,
2. are heavier than air,
3. go a long way on the
floor and
4. can be carried from
other rooms to the pilot
flame by air currents.
Installation:
Do not install water heater
where flammable products will
be stored or used unless the
main burner and pilot flames
are at least 18ʺabove the
floor. This will reduce, but not
eliminate, the risk of vapors
being ignited by the main
burner or pilot flame.
Read and follow water heater warnings and instructions. If owners
manual is missing, contact the retailer or manufacturer.

Customer Service Troubleshooting Tips Care and Cleaning Operating Instructions Installation Instructions Safety Instructions
4
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
Bot h LP and nat ural gas have an odorant added t o aid in det ect ing a gas leak. Some
people may not physically be able t o smell or recognize t his odorant . If you are unsure or
unfamiliar wit h t he smell of LP or nat ural gas, ask t he gas supplier. Ot her condit ions, such
as “odorant f ade”, which causes t he odorant t o diminish in int ensit y, can also hide or
camouflage a gas leak.
DANGER!
LIQUEFIED PETROLEUM MODELS
●Wa t e r h e a t er s u t i l i z i n g L P g a s a r e
different from nat ural gas models. A
nat ural gas wat er heat er will not funct ion
safely on LP gas and vice versa.
●No at t empt should ever be made t o
convert t he wat er heat er from nat ural gas
toLPgas.Toavoidpossibleequipment
damage, personal injury or fire, do not
connect t he wat er heat er t o a f uel t ype
not in accordance wit h t he unit dat a
plat e. Propane for propane unit s. Nat ural
gas for nat ural gas unit s. These unit s are
not cert if ied for any ot her fuel t ype.
●LP appliances should not be ins t alled
below grade (for example, in a basement )
if such inst allat ion is prohibit ed by
federal, st ate and/or local laws, rules,
regulat ions or cust oms.
●Pr o p a n e o r LP g a s m u s t b e u s ed wi t h
great caut ion. It is heavier t han air and
wi l l col l ect f i r s t i n l ower ar eas maki ng i t
hard t o det ect at nose level.
●Make sure t o look and smell for LP gas
leaks before at t empt ing t o light t he
appliance. Use a soapy solut ion t o check
all gas fit t ings and connect ions. Bubbling
at a connect ion indicat es a leak t hat
must be correct ed. When smelling t o
det ect an LP leak, be sure t o sniff near
thefloor too.
●Gas det ect ors are recommended in LP
applicat ions and t heir inst allat ion should
be in accordance wit h t he manuf act urer’s
recommendat ions and/or local laws, rules,
regulat ions or cust oms.
●It is recommended t hat more t han one
met hod be used t o det ect leaks in LP gas
applicat ions.
If LP gas is present or suspected:
●Do not at t empt t o f ind t he cause
yourself.
●Do not trytolight anyappliance.
●Do not touchanyelectrical switch.
●Do not use any phone in your building.
●Leave t he house immediat ely and make
sure your family and pet s leave also.
●Leave t he doors open f or vent ilat ion and
cont act t he gas supplier, a qualified
service agency or t he fire depart ment .
●Keep t he area clear unt i l t he s er vice call
has been made, t he leak is correct ed and
a qualified agency has det ermined t he
area t o be safe.

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Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service
Time/Temperature Relationship in Scalds
Te m p e r a t u r e T i m e To P r o d u c e a S e r i o u s B u r n
12 0 °F. M o r e t h a n 5 m i n u t e s
12 5 °F. 11 ⁄2to2 minutes
13 0 °F. A b o u t 3 0 s ec o n d s
13 5 °F. A b o u t 10 s e c o n d s
14 0 °F. L e s s t h a n 5 s e c o n d s
14 5 °F. L e s s t h a n 3 s e c o n d s
15 0 °F. A b o u t 11 ⁄2seconds
15 5 °F. A b o u t 1 s e c o n d
Table courtesy of Shriners Burn Institute
The char t s hown above may be us ed as a gui d e
in det ermining t he proper wat er t emperat ure for
your home.
NOTE: Households with small children, disabled,
or elderly persons may require a 120°F. or lower
thermostat setting to prevent contact with “HOT”
water.
Maximum wat er t emperat ures occur just af t er
burner has shut of f. To f ind hot wat er t emperat ure
being delivered, t urn on a hot wat er faucet and
place a t hermomet er in t he hot wat er st ream and
read t he t hermomet er.
The t emper at ur e of t he wat er i n t he heat er can be
regulat ed by set t ing t he t emperat ure dial on t he
front of thethermostat. To comply with safety
regulat ions t he
thermostat was set at
it s lowest set t ing before
wat er heat er was s hi pped
from thefactory.
The i l l us t r at i on at t he l ef t
det ails t he approximat e
wat er t emper at ur e
for each mark on the
Ther mos t at Temp er at ur e
Dial .
DANGER: There is a Hot Water SCALD Potential if
the thermostat is set too high.
DANGER
!
HOT
Water temperature over 125°F can
cause severe burns instantly or
death from scalds.
Children, disabled and elderly are
at highest risk of being scalded.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
BURN
WARNING!
WATER TEMPERATURE ADJUSTMENT
Safet y and energy conservat ion are f act ors t o be considered when select ing t he wat er
temperaturesettingof water heater’s thermostat.Water temperatures above125°F.can
cause severe burns or deat h from scalding. Be sure t o read and follow t he warnings out lined
on t he label pict ured below. This label is also locat ed on t he wat er heat er.
Mixing valves for reducing point of use wat er
temperaturebymixinghot andcoldwater inbranch
wat er l i nes ar e avai l abl e. Cont a ct a l i cens ed pl umber or
thelocalplumbingauthorityfor further information.
U N I T R O L
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WARNING
READ ALL INSTRUCTIONS
BEFORE LIGHTING
“Danger Range” “Safety Range”
130°F.
Temperatures are
approximate
120°F.
140°F.
150°F.
160°F.
110°F.
100°F.
90°F.
80°F.
70°F.
60°F.