Install Instructions

Installation
20│Page
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‐Pressurereliefvalve‐
Thewaterheaterhasahigh‐temperatureshutoffswitchbuiltinas a standard safety feature(calleda
Hi‐Limitswitch)thereforea“pressureonly”reliefvalveisrequired.
 Thisunitdoesnotcomewithanapprovedpressurereliefvalve.
 Anapprovedpressurereliefvalvemustbeinstalled
onthehotwateroutlet.
 ThepressurereliefvalvemustconformtoANSIZ21.22orCAN1‐4.4andinstallationmustfollow
localcode.
 The discharge cap acity must be at least 199,000 BTU/h for th e 520 (T‐H2) models, and 180,000
BTU/hforthe320(T‐H2S)models.
 Thepressurereliefvalveneedstoberatedforamaximumof150psi.
 Thedischargepipingforthepressurereliefvalvemustbedirectedsothatthehotwatercannot
splashonanyoneoronnearbyequipment.
 Attach the discharge tube to the pressure relief valve and
 run the end of the tube to within 6"
from the floor. This discharge tube must allow free and complete drainage without any
restrictions.
 Ifthepressurereliefvalveinstalledonthewaterheaterdischargesperiodically,thismaybedue
toadefectivethermalexpansiontankordefectivepressure
reliefvalve.
 Thepressurereliefvalvemustbemanuallyoperatedperiodicallytocheckforcorrectoperation.
 Novalvemustbeplacedbetweenthereliefvalveandthewaterheater.
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CONDENSATEDRAIN
 Thewaterheaterdoesnotincludeabuilt‐incondensateneutralizercartridgeforreducingthepH
levelofcondensatewater.Iflocalcodesdictatethatcondensatemustbeneutralizedpriorto
drainage,acondensateneutralizermustbeinstalled.AnaccessoryNeutralizerassemblyissold
separately.
 Intheabsenceof
applicablelocalcodesandregulations,themanufacturerrecommendsthat
condensatebedisposedofintoastandarddrain.Connectadraintubefromthecondensatedrain
port(shownbelow)locatedonthebottomofthewaterheatertoastandarddrain.
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 Follow all code requirements
of the local authority on
condensate neutralizers and
whether or not they are
requiredfortheinstallation.
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Condensatedrainport