Hydro-Smart 115 - Flow Rate and Freeze Protection; Freeze Protection System

NormalOperation
30│Page
Onlypipeswithinthewaterheaterareprotectedbythefreezeprotection
system.Anywaterpipes(hotorcold)locatedoutsidetheunitwillnotbe
protected.Properlyprotectandinsulatethesepipesfromfreezing.
HouseholdFlowRates
TakenfromUPC2006
FLOW
 Theflowratethroughthewaterheaterislimitedtoa
maximumof6.6GPM.
 Thetemperaturesetting,alongwiththesupply
temperatureofthewaterwilldeterminetheflowrate
outputoftheunit.
 Pleaserefertothetemperaturevs.gallonsperminute
chartonp.41
todeterminethelikelyflowratesbased
onyourlocalgroundwatertemperatureandyour
desiredoutletwatertemperature.
 BasedontheUnitedStatesDepartmentofEnergy
methodoftestingwaterheateroutput,thewaterheaterisratedfor172gallonsperhour(GPH)or2.9
gallonsperminute
(GPM)forNaturalGas,and184GPHor3.1GPMforPropane,whenraisingthe
watertemperatureby77F(from58Fto135F).
 Refertothetabletothetoprightfortypicalhouseholdplumbingfixtureflowratestodetermine
whatthewaterheatercandoin
ahouseholdapplication.
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FREEZEPROTECTIONSYSTEM
 Thisunitcomesequippedwithheatingblockstoprotectitagainstdamagesassociatedwithfreezing.
 Forthisfreezeprotectionsystemtooperatetherehastobeelectricalpowertotheunit.Damageto
the heat exchanger caused by freezing temperatures due to power loss is  not covered under the
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warranty.Incaseswherepowerlossescanoccur,considertheuseofabackuppowersupply.
 Thefreezeprotectionsystemwillactivatewhenthesurroundingand/oroutsidetemperatures drop
below36.5°F(2.5°C).
 FortheHydro‐Smart115models:
 In any areas subject to freezing temperatures, Hydro‐Smart highly recommends an indoor
installation with an indoor model.In such an installation, free zing issues can only occur if
coldair entersthroughtheventing intothe heat exchanger, whether by negativepressures
withintheinstallationlocationorbystrongoutsidewinds.
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 Hydro‐Smart also highly recommends the use of a back flow vent damper to minimize the
amountofcoldairenteringthroughtheexhaustventingwhenthewaterheaterisoff.
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 It is the installer’s responsibility tobe aware of freezing issuesand take all preventative measures.
Hydro‐Smartwillnotberesponsibleforanydamagetotheheatexchangerasaresultoffreezing.
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 Ifyouwillnotbeusingyourheaterforalongperiodoftime:
1. Completelydraintheunitofwater.Refertop.31.
2. Disconnectpowertoyourheater.
Thiswillkeepyourunitfromfreezingandbeingdamaged.
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Appliance/Use FlowRate(GPM)
LavatoryFaucet 1.0
BathTub 4.0–10.0
Shower 2.0
KitchenSink 1.5
Dishwasher 1.5
Washingmachine 4.0
CAUTION