Instruction manual

17
FOR YOUR INFORMATION
START UP CONDITIONS
DRAFT HOOD OPERATION
Check draft hood operationby performing a worst case
depressurizationofthebuilding.Withalldoorsandwindowsclosed,
andwithallairhandlingequipmentandexhaustfansoperatingsuch
as furnaces, clothes dryers,range hoods andbathroom fans, a
matchameshouldstillbedrawnintothedrafthoodofthewater
heaterwithitsburnerring.Iftheameisnotdrawntowardthe
drafthood,shutoffwaterheaterandmakenecessaryairsupply
changestocorrect.
CONDENSATION
Whenever the water heater is filled with cold water, some
condensatewillformwhiletheburnerison.Awaterheatermay
Neverallowsmallchildrentouseahotwatertap,ortodrawtheirown
bathwater.Neverleaveachildorhandicappedpersonunattended
inabathtuborshower.
NOTE:Awatertemperaturerangeof120°F-140°F(49°C-60°C)is
recommendedbymostdishwashermanufacturers.
Thethermostatofthiswaterheaterhasbeenfactorysetatitslowest
position (PILOT LIGHTING). It is adjustable and must be reset to
the desired temperature setting to reduce the risk of scald injury.
Themark(
)indicativeofapproximately120°F(49°C)ispreferred
startingpoint.SomeStateshavearequirementforalowersetting.
Turn the water temperature dial clockwise (
 ) to decrease the
temperature,orcounterclockwise(
)toincreasethetemperature.
Shouldoverheatingoccurorthegassupplyfailtoshutoff,turnoff
themanualgascontrolvalvetothewaterheater.
FIGURE 15.
(U.S. Government Memorandum, C.P. S.C., Peter L. Armstrong, Sept. 15, 1978)
110 (43) (normal shower temp.)
116 (47) (pain threshold)
116 (47) 35 minutes 45 minutes
122 (50) 1 minute 5 minutes
131 (55) 5 seconds 25 seconds
140 (60) 2 seconds 5 seconds
149 (65) 1 second 2 seconds
154 (68) instantaneous 1 second
Water
Temperature
°F (°C)
Time for 1st Degree Burn
(Less Severe Burns)
Time for Permanent Burns
2nd & 3rd Degree
(Most Severe Burns)
(U.S. Government Memorandum, C.P. S.C., Peter L. Armstrong, Sept. 15, 1978)
43 (110) (temp. normale d’une douche)
47 (116) (seuil de douleur)
47 (116) 35 minutes 45 minutes
50 (122) 1 minute 5 minutes
55 (131) 5 secondes 25 secondes
60 (140) 2 secondes 5 secondes
65 (149) 1 seconde 2 secondes
68 (154) instantaneous 1 seconde
Température
de I'eau
°C (°F)
Délai pour des brûlures
au 1er degré
(brûlures moins graves)
Délai pour des brûlures
permanentes au 2e et 3e degrés
(brûlures les plus graves)
FIGURE 16.
Shortrepeatedheatingcyclescausedbysmallhotwaterusescan
causetemperaturesatthepointofusetoexceedthethermostatsetting
byupto30°F(16.7°C).Ifyouexperiencethistypeofuseyoushould
considerusinglowertemperaturesettingstoreducescaldhazards.
Anywaterheater’sintendedpurpose is toheatwater.Hotwater is
neededforcleansing,cleaning,andsanitizing(bodies,dishes,clothing).
Untemperedhotwatercanpresentascaldhazard.Dependingonthe
timeelement,andthepeopleinvolved(adults,children,elderly,inrm,
etc.)scaldingmayoccuratdifferenttemperatures.
HOTTER WATER CAN SCALD: Water heaters are intended to
producehotwater.Waterheatedtoatemperaturewhichwillsatisfy
spaceheating,clotheswashing,dishwashing,andothersanitizing
needscanscald andpermanentlyinjureyouuponcontact.Some
peoplearemorelikelytobepermanentlyinjuredbyhotwaterthan
others.Theseincludetheelderly,children,theinrm,orphysically/
mentally handicapped.  If anyone using hot water in your home
tsintooneofthesegroupsorifthereisalocalcodeorstatelaw
requiringacertaintemperaturewateratthehotwatertap,thenyou
musttakespecialprecautions.Inadditiontousingthelowestpossible
temperaturesettingthatsatisesyourhotwaterneeds,ameanssuch
asamixingvalveshouldbeusedatthehotwatertapsusedbythese
peopleoratthewaterheater.Mixingvalvesareavailableatplumbing
supply or hardware stores,see Figure 2. Follow manufacturer’s
instructionsforinstallationofthevalves.Beforechangingthefactory
settingonthethermostat,readthe“TemperatureRegulation”section
inthismanual,seeFigures15and16.
TEMPERATURE REGULATION
appeartobeleakingwheninfactthewateriscondensation.This
usuallyhappenswhen:
a.Anewwaterheaterislledwithcoldwaterforthersttime.
b.Burninggasproduceswatervaporinwaterheaters,particularly
highefciencymodelswhereuetemperaturesarelower.
c.Largeamountsofhotwaterareusedinashorttimeandtherell
waterinthetankisverycold.
Moisturefromtheproductsofcombustioncondenseonthecooler
tanksurfacesandformdropsofwaterwhichmayfallontotheburner
orotherhotsurfacestoproducea“sizzling”or“frying”noise.
Excessivecondensationcancausepilotoutageduetowaterrunning
downtheuetubeontothemainburnerandputtingoutthepilot.