ADS ET-AF-3 - Drain Requirements

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CopyrightADSInstallationManualModelET‐AF‐PDH,Revision3.1,5/25/2017
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WaterPressureforFilling
Minimumpressureneededatthemachineis15psiDURINGthefill.ThisiscalledFLOWpressure.STATIC
pressurereadingscanbemisleadingandcandropto“0”duringfill.Withflowpressuresbelow15psi,
additionalmeasureswillbeneededtoresolvetheproblem.Thefirstsuggestionistorun
3/4"pipedirectly
fromthewaterheatertothedishmachine.Iftheproblempersists,installapressurebladdertankusedfor
domesticwellwater;a5gallonsizewouldbeaminimum,10gallonasamaximum.Anotheroptionistoorder
acamtimerwithlongercycletimesbut
thiswillreducehourlyproductionrates.
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SimpleTestForWaterPressure
Emptythewateroutofthemachinebyliftingthedrainball,pushthemanualFILLbuttonwhilecountingthe
secondstofillbackuptothewaterleveldecal.Ifittakesmorethan20secondstofill,thereisnotenough
buildingpressuretooperatethemachineproperly.
DrainRequirements
Totherearofthemachineisfoundthedrain“Y”forthetubecomingfromthedrainpumpandthetank
overflow.DonotremovetheYfromtheback.Whenthedrainlineisrundownfrom18”offthefloor,theY
affordsprotectionfromoverflowandleakingwatersolenoidconditions.
 
Showingstainlessdrainpumpw/3/4”dischargetubeDrain“y”fromoverflow&drainpump,48”draintube

Recommendeddraintubeconnectiontobuildingdrain