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'ADDiTIONAL TABLES CLIMATE ZONES 4 5 6 6A.1B HEATING CREDIT MULTIPLIERS (HCM) SYSTEM TYPE HEATING CREDIT MULTIPLIERS (HCM) Attic Radiant Barrier HCM .98 Multizone HCM .90 Natural Gas AFUE .68-.72 .73-.77 .78-.82 .83-.87 .88-.92 .93 & Up HCM .61 .56 .53 .50 .47 .44 LP Gas HCM .77 .72 .67 .63 .60 .57 6A.19 COOLING CREDIT MULTIPLIERS CCM) SYSTEM TYPE COOLING CREDIT MULTIPLIERS (CCM) Ceilinq Fans .86* Cross Ventilation .90' *Credit may be taken for only Whole House Fan .90' one of these system types concu rrently. Multizone .95 Attic Radiant Barrier .95 6A.20 HOT WATER CREDIT MULTIPLIERS (HWCM) SYSTEM TYPE HOT WATER CREDIT MULTIPLIERS (HWCM) Heat Recovery Unit With Air Conditioner Heat Pumo HWCM .62 .58 Dedicated Heat Pump EF 2.0-2.49 I 2.5-2.99 3.0-3.49 I 3.5 & Up HWCM .44 I .35 .29 I .25 A HWM MUST BE USED IN CONJUNCTION WITH ALL HWCM. SEE TABLE 6A-9. EF MEANS ENERGY FACTOR. 6A.21 INFILTRATION REDUCTION PRACTICE COMPLIANCE CHECKLIST COMPONENTS SECTION REQUIREMENTS FOR EACH PRACTICE CHECK PRACTICE #1 606.1 COMPLY WITH All INFilTRATION PRESCRIPTIVES. Windows 606.1 Maximum of 0.34 CFM per linear foot of ooerable sash crack (includes slidina alass doors). Exterior & Adjacent Doors 606.1 Maximum of 0.5 CFM per sa. ft. of door area; solid core, wood panel, insulated or Qlass doors onlv. Exterior Joints & Cracks 606.1 To be caulked, aasketed, weatherstripped or otherwise sealed. PRACTICE #2 606.2 COMPLY WITH #1 AND THE FOllOWING: Exterior Walls and Floors Top plate penetrations sealed. Infiltration barrier installed. Sole olate/floor ioint caulked or sealed. Exterior Walls & Ceilinas Penetrations, ioints and cracks on interior surface caulked, sealed or Qasketed. Ductwork Ductwork in unconditioned space must be sealed. Fireplaces Equipped with outside combustion air, doors, and flue dampers. Exhaust Fans Equipped with dampers. Combustion devices see 606.1.A.2 Combustion Appliances Be in unconditioned space (except direct vent), draw air from unconditioned space, exhaust to outside. Cookina appliances shall be dampered and use intermittent ignition. PRACTICE #3 606.2 COMPLY WITH PRACTICES #1 AND #2 AND THE FOllOWING: Ceilinqs Infiltration barrier installed. Interior Walls Top penetrations sealed or ioints & cracks on interior walls caulked, sealed or aasketed. Recessed Liahts Sealed from conditioned & insulated from ventilated attic spaces. . Ductwork All ductwork located in conditioned space. 6A.22 OTHER PRESCRIPTIVE MEASURES (must be met or exceeded by all residences.l COMPONENTS SECTION REQUIREMENTS CHECK Water Heaters 612.1 Comply with efficiency requirements in Table 6-12. Switch or clearly marked circuit breaker (electric) or cutoff (aasl must be orovided. External or built-in heat trao reauired. Swimming Pools & Spas 612.1 Spas & heated pools must have covers (except solar heated). Non-commercial pools must have a pump timer. Gas spa & pool heaters must have a minimum thermal efficiencv of 78%. Shower Heads 612.1 Water flow must be restricted to no more than 3 aallons oer minute at 80 PSIG. HV AC Duct Construction 610.1 All ducts, fittings, mechanical equipment and plenum chambers shall be mechanically attached, Insulation & Installation sealed, insulated, and installed in accordance with the criteria of Section 904.6. Duct in unconditioned space and air handlers located in attics must be insulated to a minimum of R-5. Air handlers shall not be installed in attics unless in mechanical closet. HV AC Controls 607.1 Separate readilv accessible manual or automatic thermostat for each svstem. Insulation 604.1 602.1 Ceilinas-Min. R-19. Common walls-Frame R-11 or CBS R-3 both sides. Common ceilinQ & floors R-11. -6-