Install Instructions
Installation
17│Page
1. Turnoffallelectricpowertothewaterheaterifserviceistobeperformed.
2. Turnthemanualgasvalvelocatedontheoutsideoftheunitclockwisetotheoffposition.
Checkthatthetypeofgasmatchestheratingplatefirst.
Ensure that any and all gas regulators used are operating properly and
providing gas pressures within the specified range shown below. Excess gas
inletpressuremaycauseseriousaccidents.
Conversion of th is unit from natural gas to propane or vise versa will void all
warranty. Contact your local distributor to get the correct unit for your gas
type.Themanufacturerisnotliableforanypropertyand/orpersonaldamage
resultingfromgasconversions.
Sizethegaspipeappropriatelytosupplythenecessaryvolumeofgasrequiredfor
thewaterheaterusingANSI233.1/NFPA54intheUSAorCAN/CSAB149.1inCanada
orlocalcodes.Otherwise,flowcapabilitiesandoutputtemperatureswillbelimited.
GASSUPPLYANDGASPIPESIZING
Theminimumandmaximuminletgaspressuresare:
Gastype Inletgaspressure
NaturalGas Min.5.0”WC–Max.10.5”WC
Propane Min.8.0” WC– Max.14.0” WC
Gas pressure above this specified range for the water heater and/or insufficient gas volume will
adversely affect performance.These pressures are measured when the water heater is in full
operation.
Inlet gas pressure must not exceedthe above maximum values; gas pressure above the specified
rangewillcausedangerous
operatingconditionsanddamagetotheunit.
Until testing of the main gas line supply pressure is completed, ensure the gas line to the water
heaterisdisconnectedtoavoidanydamagetothewaterheater.
‐Gasconnections‐
1. Installamanualgasshut‐offvalvebetweenthewaterheaterandthegassupplyline.
2. When the gas connections are completed, it is nece ssary to perform a gas leak test (see below)
eitherbyapplyingsoapywatertoallgasfittingsandobserving for bubblesorbyusing
agasleak
detectiondevice.
Thewaterheater anditsindividualshutoff valve mu st bedisconnectedfromthegassupply
pipingsystemduringanypressuretestingofthatsystemattestpressuresinexcessof1/2psi
(3.5kPa).
Thewaterheatermustbeisolatedfromthegassupplypipingsystembyclosingitsindividual
manual shutoff valve during any pressure testing of the gas supply piping system at test
pressuresequaltoorlessthan1/2psi(3.5kPa).
3. Alwayspurgethegaslineofanydebrisand/orwater
beforeconnectingtothegasinlet.
WARNING
TOTURNOFFGASTOAPPLIANCE
NOTICE