American Water Heater 520 Spécifications télécharger pdf (Page 38)

NormalOperation

38│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throu gh thewaterheaterislimitedtoamaximumof9.0GPMforthe520(T‐H2)

models,and8.0GPMforthe320(T‐H2S)models.

 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.50todeterminethelikelyflow

ratesbasedonyourlocalgroundwatertemperatureandyourdesiredoutletwatertemperature

combination.

 BasedontheUnitedStatesDepartmentofEnergy

methodoftestingwaterheateroutput,

the520(T‐H2)

modelsisratedfor282gallons perhour(GPH)or4.8

gallonsperminute(GPM)forNaturalGas,andthe320

(T‐H2S)modelsisratedfor255gallonsperhour(GPH)or

4.3gallonsperminute(GPM)forNaturalGas,when

raisingthewatertemperatureby

77F(from58Fto

135F).

 Refertothecharttotherightfortypicalhousehold

plumbingfixtureflowratestodeterminewhatthewater

heatercandoinahouseholdapplication.



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



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).

 In any areas subject to freezing temperatures, the manufacturer highly recommends an indoor

installationwiththe

DirectVentIndoormodels.Insuchanin stallation ,freezingissuescanonlyoccur

ifcoldairentersthroughtheventingintotheheatexchanger,whetherbynegativepres sureswithin

theinstallationlocationorbystrongoutsidewinds.Itistheinstaller’sresponsibilityto beawareof

theseissues and takeall

 preventative measures.Themanufacturer will not be responsible for any

damagetotheheatexchangerasaresultoffreezing.

 The manufacturer 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.

 Ifyouwillnotbeusingyourheaterforalongperiodoftime:

1. Completelydraintheunitofwater.Refertop.39.

2. Disconnectpowertoyourheater.

Thiswillkeepyourunitfromfreezingandbeingdamaged.



Appliance/Use FlowRate(GPM)

LavatoryFaucet 1.0

BathTub 4.0–10.0

Shower 2.0

KitchenSilk 1.5

Dishwasher 1.5

Washingmachine 4.0

CAUTION

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American Water Heater 520 Spécifications Page 38

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