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1. ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings A L 4 FN R n eli e eli gr n ry e a Ventilation Ductit 1g If outside thermal envelope R S Rigid ductwork preferred Flexible duct specifications Support properly Size according to table on next slide AT md Karg Ba pa ASHRAE 62 2 for Existing Dwellings sj Karg Associ M es Rick Karg rjkarg karg com 24 ASHRAE 62 2 2010 for Exieting Homes Rick Karg rjkarg karg com February 2011 Ral Associat o Phone iPad and iPod c iates on Chapter in Workforce y Upgrades DOE NREL quired math 50 i Eo ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Zi pTe st Pro Ra Karg Associate J Karg Assoc HE www karg com software htm E ASHRAE 62 2 for Existing Dwellings Zi pon st Pro EL PS NIS ez ALT COMP TOOL 424 Kitchen Bz z ALT COMP TOOL 171 Bagthts Affected MH kitchen AFFecked Tes Local CFH Has Hindow Ves gt EnterzDk E5C CANCEL ESC CAMCEL ETP 16 42 E 522 ALT COMP TOOL ee ae ASHARE 62 2 PROGRAM REPORT EQLH 103 it Eaths Affected 1 Est Hat CEM 61 uiteni eS e E EO an Eds ug tw Alt Comp Supplement 18 Inf Credit 10 MAIN ASHARE 62 2 PROGRAM REPORT emm o ooo FESTER Mech Vent CFM 100 x 57 lt Dec LocalcrM T 1 IHPUTS Use ATE Corp Toot m Has Window Yero CFMSO 1000 lised ALL2. Requires whole building ventilation in all new and the majority of existing homes And more 12 a Karg Associates x Rick Karg rjkarg karg com 6 ASHRAE 62 2 2010 for February 2011 Existing Homes Rick Karg rjkarg karg com 7 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Exhaust the worst air in the dwelling as quickly as possible s Bathrooms Kitchens s Garages Crawlspaces w Karg Associ E ASHRAE 62 2 for Existing Dwellings Requirements Local exhaust fans must be installed in bathrooms and kitchen Bathrooms not half bathrooms 50 CFM on demand or 2O CFM continuous s Kitchen 100 CFM on demand or 5 ACH based on kitchen volume 12 x14 x 7 5 kitchen requires 105 CFM Vented range hood required if exhaust fan flow rate is less TET than 5 kitchen air changes per hour 16 a Karg ae Rick Karg rjkarg karg com e ASHRAE 62 2 2010 for February 2011 Existing Homes AOHRAE 62 2 for Existing Dwellings Dilution ventilation bringing in enough outdoor fresh air to dilute the bad stuff already in the indoor air Effectiveness depends on the quality of the outdoor air and the concentration of pollutants in the indoor air 17 w Karg Associates E 4 ASHRAE 62 2 for Existing Dwellings Whole building ventilation A mechanical exhaust system supply system or combination thereof shall be ins
3. to their function 40 w Karg Associates E 3 Rick Karg rjkarg karg com LO ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Customer education is very important Make up an operation manual for occupants Have extra copies available Purpose of ventilation Proper operation of ventilation system whole building and local s Maintenance suggestions 41 w Karg Associates 3 ASHRAE 62 2 for Existing Dwellings Raj Karg Associates 3 Rick Karg rjkarg karg com 21 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Must be exhausted to the outdoors 43 nbi Karg Associates A ASHRAE 62 2 for Existing Dwellings The sound ratings of installed ventilation equipment Shall meet the requirements of the Standard 44 w Karg Associates y Rick Karg rjkarg karg com 22 ASHRAE 62 2 2010 for February 2011 Existing Homes Sone Chart Sound Level Situation Sone Level How We feel Traffic Noise 8 Conversation with added noise TViRadio Normal Conversation Calm Office Night in Suburbs Rustling Shrubs ring loudness Ro Karg Associ 45 E anay nasaan Sue Maximum Fan Sound Ratings Local bath on demand Local bath continuous TT BO senes or 50 ABA N A Local kitchen continuous N A fa n grille Ro Karg Associat 46 E anay E Rick Karg rjkarg karg com 23
4. 2 for Existing Dwellings The whole building ventilation requirements of the Standard may be satisfied by intermittent operation but in some cases this is not a good alternative because a May require high CFM fan flow rates Control of fan must provide consistent percentage on times 27 w Karg Associates 3 ASHRAE 62 2 for Existing Dwellings Air Flow adjustable from 40 to 100 of capacity in 16 increments for background ventilation rate Built in Timer programmed at installation in multiples of 5 minutes for a 12 or Z4 hour cycle Boost to full speed for 2O minutes by pressing button Pressing again drops speed to background rate wt Karg Associates 3 Rick Karg rjkarg karg com 11 ASHRAE 62 2 2010 for Existing Homes Rick Karg rjkarg karg com February 2011 Ra Karg Associat o E 62 2 2010 24 G 12 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Alternative Compliance Path In each room where local ventilation should be determine deficit relative to required rate How much less than 5O cfm in bathrooms s How much less than 1 OO cfm in kitchens For each room with a deficit reduce room e deficit by 20 cfm if that room has an openable window 25 w Karg Associates ASHRAE 62 2 for Existing Dwellings Alternative Compliance Path Add up deficits and divide by 4 Add the result to the whole building ventilation requi
5. 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Infiltration credit calculation for dwellings built prior to the application of this standard This means existing dwellings If Natural Infiltration gt 2A 100 Then Infiltration credit O 5 Natural Infiltration 2A 100 7 ASHRAE 62 2 2010 page 4 for whole building ventilation 33 w karg Associates ASHRAE 62 2 for Existing Dwellings Infiltration Credit Example 5 3 BR 1500 sq ft house Whole building requirement 45 ZO 25 cfm A Method of Determining Air Change Rates in Detached Dwellings 34 w Karg Associates d r Rick Karg rjkarg karg com 17 ASHRAE 62 2 2010 for Existing Homes Rick Karg rjkarg karg com 45 45 O cfm February 2011 18 ASHRAE 62 2 2010 for Existing Homes Rick Karg rjkarg karg com nt topic that is is training February 2011 57 i 19 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Must prevent migration of contaminates to the adjoining occupiable space All joints seams penetrations and openings must be sealed or gasketed 39 w Karg Associates i gt ASHRAE 62 2 for Existing Dwellings Provide to owner or occupant of dwelling unit s Information on ventilation systems installed Instructions on proper operation and s Instructions on proper maintenance Controls shall be labeled as
6. ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings MIAQC Conference February 2011 2011 R J Karg Associates rjkarg karg com ASHRAE 62 2 for Existing Dwellings Natural air leakage doesn t cut it Fundamentals of ASHRAE 62 2 Secondary requirements of Standard Determining whole building ventilation Whole building ventilation options Measuring ventilation performance Suggested work sequence Sizing examples 2 a Karg Associates E Rick Karg rjkarg karg com 1 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings EB Currently MUBEC XX ASHRAE STANDARD requires ASHRAE 62 2 Ventilation and 2007 for new dwellings Acceptable Indoor Air Quality in Low Rise os The Maine low income Residential Buildings weatherization program tt lt lt lt Es wi I Soon requ i re TT ASHRAE 62 2 2010 TE Ba as p n LE rubrum rr ng aan ginis cedes i gam rn sul D American Sochy of Homing Felrigerating and Air Comditsening Engineers bnc EMi Walis Cr PL Aissa GA MIA ara paba ay oe www ashrae org 3 w Karg Associates E ASHRAE 62 2 for Existing Dwellings applies to spaces intended for human occupancy within single family houses and multifamily structures of three stories or fewer above grade including manufactured and modular houses considers chemical physical and biological contaminants that can
7. Comp Tool Rick Karg rjkarg karg com 26 ASHRAE 62 2 2010 for Existing Homes ASHRAE 62 2 for Existing Dwellings ResVent 62 2 al ATAT 3 AR rr isss E Smith Home Smith Home Smith Home Smith H February 2011 Building Inputs Altemative Compliance Supplement bao retro BE es EJ ventilation Inputs Ei Reports Jy ASHRAE 62 2 for Existing Dwellings ResVent 62 2 mi ATAT 34 P smi Home E Baths Bath 1 Rick Karg rjkarg karg com 27 ASHRAE 62 2 2010 for Existing Homes Rick Karg rjkarg karg com t heat recovery February 2011 56 o 25 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Th f a a a e SI am a d a O E o A 4 m ES an m a 7 D m gt A Pa am Q m a Emm x o Sm St NP j UP T mi BE NAN NN Mie R PT RT UN edP 4 m Lo gt Wi h 1 y W fla P A B I gt P A A J 7 ot B S T St J BR J B Bi D Ce B AB b w 8 S amp S 9 A t U A A A bise N o Qu lt o e N Ld gt CB e 4 Exhausting unit s only no supply ventilation Exhaust fan serving one exhaust point s In line fan unit serving one or more exhaust points Creates negative pressure in building Pulls pollutants from garage etc Backdrafting potential Source of supply air 57 mg karg Ba pa ASHRAE 62 2 for Existing Dwellings Figure 4 7 Example exhaust only ventilation system using
8. affect air quality Thermal comfort requirements are not included in this standard While acceptable IAQ is the goal of this standard it will not necessarily be achieved even if all requirements are met 4 w Karg Associates y Rick Karg rjkarg karg com 2 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings air toward which a substantial majority of occupants express no dissatisfaction with respect to odor and sensory irritation and in which there are not likely to be contaminants at concentrations that are known to pose a health risk Ro Kare Associates e Karg Associates 5 y ASHRAE 62 2 for Existing Dwellings Workforce Guidelines for Home Energy Upgrades DOE NREL 2011 Healthy Indoor Environment Protocols for Home Energy Upgrades EPA 2010 Weatherization Health and Safety Guidance Weatherization Program Notice 1 1 6 Calls for use of ASHRAE 62 2 2010 by January1 2012 Home Energy Auditing Standard BPI 101 Building Performance Institute 2010 mal Karg Associates x Rick Karg rjkarg karg com ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Source control Air leakage natural ventilation Local ventilation s Exhaust the worst air in the house Whole building dilution ventilation 7 w Karg Associates EA ASHRAE 62 2 for Existing Dwellings Air leakage only ven
9. dedicated exhaust fans 58 Kaj Karg Associates Source 62 2 User s Manual 2006 ASHRAE e EN Rick Karg rjkarg karg com 29 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Panasonic WhisperGreen Ro Karg Associates MG bg nos Saxa kt gt Ge ASHRAE 62 2 for Existing Dwellings Bathroom or Hall Exhaust Fans GO Ro Karg Associates Photos courtesy of Wisconsin Weatherization Program Ze sera Rick Karg rjkarg karg com 50 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Kitchen Exhaust Fans ksa 100 CFM or 5 ACH of kitchen volume Venmar 5131 1LS range hood with 40 CFM background amp 75 160 and 27O CFM on demand speeds 61 E Kap Anociates ASHRAE 62 2 for Existing Dwellings Exhaust Only In Line Figure 4 8 Example exhaust only ventilation system using a central inline exhaust fan with multiple pickups 62 Raj Karg Associates Source 62 2 User s Manual 2006 ASHRAE DN Cere Iron nion Man Rick Karg rjkarg karg com 31 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Exha Photos courtesy of Wisconsin Weatherization Program w Karg Associates 3 ASHRAE 62 2 for Existing Dwellings e Balanced Ventilation Exhaust and supply ventilation are approximately equal cfm s Heat Recovery Ventilator HRV unit transfers sensible heat only with no humidi
10. e directly with The DG 7OO TIME DE CLEAR F f A ski TU uc keet Di 4 i UNE quw Ti INPUT zi um i B Ga LIGHT HOLD The ENERGY CONSERVATORY REF Ra Karg Associates ASHRAE 62 2 for Existing Dwellings Anemometer 74 Wi Karg Associ x Rick Karg rjkarg karg com 57 ASHRAE 62 2 2010 for Exieting Homes Rick Karg rjkarg karg com February 2011 hum ventilation or corresponding 2 Supplement based on n conditions 76 up dn Simao Ma ki 25 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Conduct as is blower door test to find CFM5 of dwelling Post weatherization modeling a Estimate post weatherization CFM 10 of volume is 6 ACH 15 of volume is 10 ACH b Estimate post weatherization depressurization Are existing combustion appliances affected under continuous operation Intermittent operation Depressurization will be greater under intermittent operation 77 w Karg Associates ASHRAE 62 2 for Existing Dwellings After weatherization is completed measure actual CFM and set required CFM of whole building ventilation fan with variable speed control Perform combustion safety testing Verify proper operation of all local and whole building ventilation equipment Job completed 78 w Karg Associates Rick Karg rjkarg karg com SE ASHRAE 62 2 2010 for February 2011 Exist
11. ing Homes ASHRAE 62 2 for Existing Dwellings Check controls Measure airflows for all installed ventilation equipment Check filters O amp M manual left with client Client education 79 w Karg Associates B ASHRAE 62 2 for Existing Dwellings Natural air leakage doesn t cut it Fundamentals of ASHRAE 62 2 Secondary requirements of Standard Determining whole building ventilation ventilation options Measuring ventilation performance Suggested work sequence Sizing examples eo w Karg Associates Rick Karg rjkarg karg com 40 ASHRAE 62 2 2010 for February 2011 Existing Homes Rick Karg rjkarg karg com 4 1
12. rement s This becomes the new whole building ventilation requirement w Karg Associates J Rick Karg rjkarg karg com 13 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Alternative Compliance Path For existing fans being used sound and ducting requirements of 62 2 are not applicable Must measure flow if ratings don t exist or duct sizing can t be verified If only have rating at O 1 O in IWC but not O 25 in IWC can reduce rating at O 10 in IWC by 25 27 w Karg Associates E 4 ASHRAE 62 2 for Existing Dwellings Alternative Compliance Path Example 1 5 BR 1 500 sa ft house 50 BT Deficit 100 50 50 200 Whole house requirement 45 50 95 cfm 223 w Karg Associates Rick Karg rjkarg karg com 14 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Alternative Compliance Path Example 2 3 BR 1 SOO sq ft house 30 BT Deficit 80 30 50 160 Whole house requirement 45 40 25 cfm 29 w Karg Associates i gt ASHRAE 62 2 for Existing Dwellings Alternative Compliance Path Example 3 3 BR 1 SOO sq ft house 30 BT Deficit 80 30 18 128 Whole house requirement 45 52 77 cfm 30 w Karg Associates X Rick Karg rjkarg karg com 15 ASHRAE 62 2 2010 for Existing Homes Rick Karg rjkarg karg com February 2011 16 ASHRAE
13. talled for each dwelling unit to provide whole building ventilation s Ventilation based on the equation and table on next slide These CFM requirements are for whole building continuous ventilation Source ASHRAE 62 2 2010 page 4 D Kire ec 7e aJ Marg Associates gt Rick Karg rjkarg karg com 9 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Minimum Ventilation Air Requirements CFM Floor Area ee soo so 45 60 7e so 1501 s000 4s eo 75 so 105 3001 4500 60 75 so 105 120 4501 6000 75 so 105 120 155 2001 7500 90 105 120 135 150 19 a Karg Associates ASHRAE 62 2 for Existing Dwellings Or use Assumes two occupants in master bedroom and one in the other bedrooms Over this density increase ventilation by 7 5 cfm person Whole building intermittently operating ventilation may be used under some conditions for compliance Ventilation air must come directly from the outdoors Credit is allowed for envelope air leakage in existing houses based on ASHRAE 136 1993 A conditioned space the part of the building that is capable of being thermally conditioned for the comfort of occupants AGHRAE 62 2 p 3 A Method of Determining Air Change Rates in Detached Dwellings i 20 a Karg Associates AX Rick Karg rjkarg karg com 10 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62
14. tilation leads to s Too much outdoor air at low outdoor temperatures below 45 degrees Too little outdoor air at warmer temperatures above 45 degrees Unpredictable outdoor air ventilation rates thus substandard IAQ s Wasted energy e w Karg Associates d Rick Karg rjkarg karg com 4 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Typical Air Leakage Paths le Ln TUHECESSE A LIGHTS i KS RECESSED IGHTS me gem RN IE 4 mp CRAWL SPACE g EIN i 3 wf hir jeaking inte the house Abr leaking out of the house Ro Karg Associates E ASHRAE 62 2 for Existing Dwellings Daily Variation of Air Leakage n zl DACH DO Ventilation Albany NY g 4ach 50 Too Leaky w 2ach i fig 2ach hrv 4ach 50 exh Ventilation ACH 240 Day of the Year Courtesy Camroden Associates Ro Karg Associates 10 ES Rick Karg rjkarg karg com 5 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings otaw ASHRAE 62 199 5r acceptabTe AQ s This standa hnas Pegen obsolete since 200 hen ASRHAE GZ Mawas first pleased Follow ASHRAE 62 2 2010O for acceptable IAQ s This latest version of the Standard makes compliance easier in existing dwellings 14 a Karg Associates Click 7 E J ASHRAE 62 2 for Existing Dwellings Requires local ventilation in bathrooms and kitchens in all homes
15. ty transfer s Energy Recovery Ventilator ERV Unit transfers sensible and humidity 6A mx karg ss Rick Karg rjkarg karg com 32 ASHRAE 62 2 2010 for Existing Homes Figure 4 9 Example ventilation system using an HRV ERV attached to the central air handler with local exhaust EL tasa February 2011 banaman Mee pin xr Raj Karg Associates eo E Espuma lama Wian Rick Karg rjkarg karg com 33 ASHRAE 62 2 2010 for February 2011 Existing Homes ASHRAE 62 2 for Existing Dwellings Energy ie cheap House ie very leaky There is no place for ducts 67 w Karg Associates i gt ASHRAE 62 2 for Existing Dwellings Exhaust fans s with passive air inlets Exhaust fan s with supply fan s for make up air Outdoor air ducted to air handler return trunk pressurizes building Balanced ventilation tied into heating AC duct system 68 w Karg Associates Rick Karg rjkarg karg com 34 ASHRAE 62 2 2010 for Exieting Homes February 2011 Rick Karg rjkarg karg com 35 February 2011 Gass E ducc aen Raj Karg Associates 7 1 lama quos Wiwini sf Aa VERE ET Flow CFM ASHRAE 62 2 2010 for Existing Homes Raj Karg Associates a r a Mar 26 Rick Karg rjkarg karg com February 2011 ASHRAE 62 2 2010 for Existing Homes ASHRAE 62 2 for Existing Dwellings OG 700 Pressure amp Flow Gauge Or measur
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