Hydro-Smart 115 - Measuring Inlet Gas Pressure

Installation
19│Page
1. Turnoffallelectricpowertothewaterheaterifserviceistobeperformed.
2. Turnthemanualgasvalvelocatedontheoutsideoftheunitclockwiseto
theoffposition.
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‐Measuringinletgaspressure‐
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Thewaterheatercannotperformproperlywithoutsufficientinletgaspressure.Belowareinstructions
onhowtochecktheinletgaspressure.THISISONLYTOBEDONEBYALICENSEDPROFESSIONAL.
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1. Shutoffthemanualgasvalveonthesupplygasline.
2. Removethescrewforthe
pressureportlocatedon
thegasinletofthewaterheatershowninthe
diagramtotheright.
3. Connectthemanometertothepressureport.
4. Re‐openthemanualgasvalve.Checktoseethat
therearenogasleaks.Opensomeofthefixtures
thatusethehighest
flowratetoturnonthewater
heater.
5. Checktheinletgaspressure.Whenthewaterheater
isonmaximumburn,themanometershouldread
from5.0”to10.5”WCforNaturalgas,from8.0”to
14.0”WCforPropane.
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Pressureport