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!- _ _, <br /> ., , � , _PASSIVE.I��AKE-UP_AIR_OPENING SCHEDULE ' <br /> TABLE FOR SIZING PASSIVE>MAKE-iTP AIR OPENII�TGS' 'Diameter '' Path Q Pat�1 - Path 2 <br /> Notes: ;•.a):,ilus table assumes 20 feet of smooth unobshucted round 3 inches 50 cfm -;5:� 15 c�rn , . <br /> . <br /> duct with three 90°elbows and a screened hood 4 umches 90 cfm 60�mi 30 cfrn . ..- <br /> - ' b) Equivalent designs'calculated using pressures of�0 Pascals 5 inches 140 cfim 100 cmn 45�fm <br /> for Path 0, .25 Pascals far Path 1, and 5 Pascals for Path 2 6 inches 200 cfm 140 cim 65 cfm � <br /> -may be used. ' 7 inches 270 cfin ' 190 cfin ' 85 cfrn .;' <br /> _ <br /> c) If a make-up air opening is used�zth no duct or eibows;the 8 inches 350 cfin 2�Q:frn 110 cfin . <br /> , diameter canbe decreasedby 1 inch. 9 inches ` 45Q cfrn - 3?Q:.fm 140 cfrn <br /> _ <br /> d) If flex duct is used,increase diameter by 1 inch. ,. IO inches 570 cfin 40U cfin 180 cfm : <br /> N1ake-up Air ApplicationlLocation CFM Openin�size Duct?}pe - - <br /> � O Smooth ❑ Fie� ❑ Opening only <br /> ❑ Smooth O Fles ❑ Openin�only <br /> ' ❑ Smooth ❑Fi�� ❑ OF2Illila only <br /> ❑ Smooth ❑Fle� ❑ Opening only <br /> AGGREGATE MAKE-UP AIR WORKSHEET <br /> INSTRUCTIONS • <br /> Step 1. Complete Exhaust Schedule on the riQht indicatin�cfm of largest device in each category. EXHAL ST SCHEDULE . <br /> Step 2. Complete the Combustion Equipment Schedule on precedin�pa�e. 'DEVICE CFM <br /> Step 3. Choose a path with a Y(Yes)for all selected equipment. Clothes drz�: - <br /> Step 4. ,Complete Aggregate Make-up Air table below for chosen path.Using the total cfm from the Kitchen erL:=ust; <br /> Exhaust Schec�ule, indicate flow in cfm for proposed method(s)of providing make-up air. Other'eYh�.�-: <br /> Step 5. Fill out the Passive Make-up Air Opening Schedule above. TO i ai, <br /> 0 Path 0 — Aggregate Make-Up Alr MethOd Passive Passi-:: Powered <br /> Infiltration ' Ope�.� '�iake-up `' <br /> ; Passive infiltration for up to 425 cfm � <br /> Passive openings for cfms over 42� <br /> Powered to match flow for cfms over 985 ' ' <br /> ❑ Path 1 — Aggregate Make-UP Ali' MethO(l Passive Passi:-e Powered` <br /> Infiltration Openi:._�` �ial:e-up ' <br /> Passive infiltrarion up to 175 cfrn* <br /> Passive openings for efrns over 175 ' ' <br /> Powered to match flo�v for cfms over 565 <br /> * If a closed conttolled solid-fuel buming appliance is installed in Path 1,then a passive opening must be.installed te provide make-up <br /> air for�the clothes dryer and for any cen�al vacuum that exhausts to the outside. : <br /> Path 2 — Aggl'egate Make-up Ai1' Method Passive Passi:= Powered . <br /> Inf'�ltration Ope�? �ial:e-up ' <br /> Passive openings forup to 175 cfm �,�� �� <br /> Po�vered to match flow for cfms over 17� N/A <br /> ❑ Path 3 — Aggregate Make-up Air Method Passive Passr:e Powered <br /> Infiltration Ope�.a �iake-up <br /> Powered to match flow N(A \_`. <br /> 16 <br />