User manual

Installation & Servicing Instructions Rinnai Q-Series
26
6.4  Gasconnection
Onlyworkongaslinesifyouarelicensedforsuchwork.
Ifthese instructions are not followedexactly, a re orexplosion may result
causingpropertydamage,personalinjuryordeath.
RinnaiwallmountedboilersarebuilttorunonNaturalGasorPropaneGas.
Thegastypetheboilerissuitableforisindicatedonthepackagingandonthe
boilerbyabluelabelwithNaturalGasoragreenlabelwithPropaneGasand
ontheidenticationplateontheboiler.
Firstchecktheidenticationplateontheboilerforthesuitablegastype.
Donotusetheboilerforanothertypeofgasthanindicatedontheidentication
plateoftheboiler.Thiswillcauseimproperfunctioningandcandamagethe
boiler.
Natural gas: refer to chapter 6.4.1
Propane gas: refer to chapter 6.4.2
6.4.1. Gasconnectionwithnaturalgas
The gas supply connection must comply with local regulations or, if such
regulationsdonotexist,withtheNationalFuelGasCode,ANSIZ223.1.
ForCanada,thegasconnectionmustcomplywithlocalregulationsor,ifsuch
regulationsdonotexist,withtheCAN/CSAB149.1,NaturalGasandPropane
InstallationCode.
Pipesizingfornaturalgas
Contact gas supplier to size the gas supply line and meter.
Gaspiping
A sediment trap must be installed upstream of the gas controls.
The boiler gas pipe is equipped with external 3/4" M-NPT thread, onto which the tail
piece of the gas shut off valve can be connected. Use appropriate sealing.
The connection to the boiler must include a suitable method of disconnection and a
gas control valve must be installed adjacent to the boiler for isolation purposes. The
nominal inlet working gas pressure measured at the boiler should be 7" W.C. (18 mbar)
for Natural gas (Gas A). Maximum pressure with no ow (lockup) or with the boiler
running is 10.5 inches W.C. Minimum pressure with the gas owing (verify during
boiler startup) is 4.0 inches W.C.
The gas pipe must be tted to the gas valve free from any strain.
Makesurethatthegaspipesystemdoesnotcontaindirt,particularlywithnew
pipes.
Alwayscheckthesafetyofthegaspipesystembymeansofabubbletestusing
leak-searchspray.
The boiler and its individual shut off valve must be disconnected from the
gassupplypipingsystemduringanypressuretestingofthatsystemattest
pressuresinexcessof1/2PSI(3.5kPa).
Theboilermustbeisolatedfromthegassupplypipingsystembyclosingits
individualmanualshutoffvalveduringanypressuretestingofthegassupply
pipingsystemattestpressuresequaltoorlessthan1/2PSI(3.5kPa).
NOTICE
i
NOTICE
i
!
DANGER
Sediment trap gure 10
!
DANGER
!
WARNING
!
DANGER
NOTICE
i
NOTICE
i