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C. An RPDA instalicd tnorc ihan fi��c (5) fcct abovc Ooor levcl must haee a platfomi <br /> undcr it for the tester or tnain(cnancc person to stand on. Thc platfomi must mcet all <br /> applicablc safcty standards and codcs. <br /> D• i1n RPBA shall not bc installcd in a pit bdow ground Icvc!. Ploodin� ofthc rit could <br /> causc a direct cross conneclion through the rclicf vah�e. Semi-buricd pits may bc <br /> acccptablc(consult�our local authority) it thc RPBA is installcd abovc ihc ground or <br /> maximum 11uod Icvcl with an approvcd air gap bchveen thc rclicf vah�c port and a <br /> daylighl draii:. Thc daylight drain from abovc ground or semi-buricd vaults must: <br /> 1. I3e able to be bore sighled. <br /> 2. De installed above the growid or maximwu Iloud Ic�cl, �v�i{������r is highcr. <br /> 3. Bc ablc to rcasonably handlc thc volume uf�u�tcr that potentially could Uc <br /> dischargcd Gom thc rclicf vah•c pert (scc City of Gvcrolt standard 518 at tBc <br /> cnd of Oiis docwncnt). <br /> C. Thc Ri'13A must be protectcd from frcczing, Vari�us hcaunE cicmcnts are etlecti�-e <br /> if po�vcr is availablc. ]f thc watcr s��stcm can bc draincd and sliut ofTduring freczing <br /> periuds, additional "freczc-nroofing" can bc acc�mplishcd by consuhing thc <br /> m�nufaclurcr of ihe specific asscmbly for recommcn<I,iti:�ns on hou• to drain cach <br /> ���atcr cnu:��,»it�h ca�iry of lhc asscmblv <br /> 1'. I lorizon�al instal'•tion is requircd. <br /> �. Cm� must bc used to insurc thal the assc;nbly is uot installcJ where Ihe pressurc will <br /> bc maintaincd above thc asscmblys ratcd and lal•cicd capacity. <br /> 11. If hot walcr conditions are anticipatcJ, cons�dt the manufacturer for specific <br /> rccommendations. High tcmperoturc use �ua� icyuire dillercnt scat m.tcrial and <br /> camposilion for pro��cr operation of thc asscmbly. <br /> 1. Thc�mal ���atcr cxpansion and/or walcr hammcr downstrcam of the assetnbly can <br /> causc excessivc pressurc. This t}ry�e of situation can bc climinated through the usc of <br /> �valcx hammcr arrestors or surgc proicctors �o avoid possible damage to tlie systcm <br /> :.nd assentbly. <br /> J. VVlicn thc RPI3A is located inside a building it shall be installcd in a location whcrc <br /> boih the occasional spitting Gom the rclief valve po�t and Ihe possible constant <br /> discharge during a fouled check vah�c situation will not be objectionnble. As such, a <br /> drainage system �vLich will reasonably Itandle tlie volume of water that could <br /> potrntially bc dischargcd Gom tlic rclief valvc po��t must be considcrcd in installation. <br /> Sce figure 1 for estimatcd dischargc rates. In addition, an approvcd air gap funnel <br /> assembly, cither providcd by thc manufactumr or fabricated (with an approecd air <br /> gap) for thc spccific ins�allation, may be inslallcd to handle the occasional spitting of <br /> thc rclicf valvc duc to pressure flucluations. A linc from this funncl assembly may <br /> then be run to an adequately sized (loor drain of cqual or greatcr size. ]t must be <br /> S:�B�ruce\OacV,Oow Installation Requimments 02ll09 jm.da l�, <br /> ]� <br />