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. ADDITIONAL TABLES CLIMATE ZONES 4 5 6 6A.18 HEATING CREDIT MULTIPLIERS (HCM) SYSTEM TYPE HEATING CREDIT MULTIPLIERS (HCM) Attic Radiant Barrier HCM _98 Multizone HCM .90 AFUE .68-.72 .73-.77 .78-_82 .83-.87 _88-.92 .93 & Up Natural Gas 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) Ceiling Fans _86' Cross Ventilation _90' 'Credit may be taken for only Whole House Fan .90' one of these system types concurrently. 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 Pump 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 operable sash crack (includes sliding glass doors). Exterior & Adjacent Doors 606.1 Maximum of 0.5 CFM per SQ. ft. of door area; solid core, wood panel, insulated or glass doors only. Exterior Joints & Cracks 606.1 .To be caulked, gasketed, weatherstriooed 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 plate/floor joint caulked or sealed. Exterior Walls & Ceilings Penetrations, joints and cracks on interior surface caulked, sealed or Qasketed_ Ductwork Ductwork in unconditioned soace must be sealed. Fireplaces Equipped with outside combustion air, doors, and flue damoers_ 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. Cooking appliances shall be damoered and use intermittent iQnition. PRACTICE #3 606_2 COMPLY WITH PRACTICES #1 AND #2 AND THE FOllOWING: Ceilinas Infiltration barrier installed. Interior Walls Too penetrations sealed or ioints & cracks on interior walls caulked, sealed or Qasketed. Recessed Liahts Sealed from conditioned & insulated from ventilated attic soaces. Ductwork All ductwork located in conditioned space. 6A-22 OTHER PRESCRIPTIVE MEASURES (must be met or exceeded by all residences.) 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 (aas) 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 & 0001 heaters must have a minimum thermal efficiency of 78%. Shower Heads 612_1 Water flow must be restricted to no more than 3 gallons 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-6, Air handlers shall not be installed in attics unless in mechanical closet. HV AC Controls 607.1 Seoarate readilv accessible manual or automatic thermostat for each svstem. Insulation 604.1 602_1 CeilinQs-Min. R-19. Common walls-Frame R-11 orCBS R-3 both sides. Common ceiling & floors R-11. ~ -6-