implementation strategies for residential ventilation―Paul Francisco
Contents
1. TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 51 17 Discussion For later questions thoughts comments pwf illinois edu 217 244 0667 a LINGUE SUSTAINABSE l D IMAT SEARCH A RAINI eT TECHNOLOGY CENTER NOOOR CL E RESE c ND T NING 52 2 19 2015 182. Paul Raymer 2009 iL LIMES VIM ABLE eil TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 26 Balanced HRV ERV Illustrates connection to the existing HVAC system Source 62 2 User s Manual 2006 ASHRAE HRV ERV am LINCO SUSTAINABLE CH TECHNOLOGY ERMTER INDOOR CLIMATE RESEARCH AND TRAINING 27 2 19 2015 Primary System Design Choices Balanced with heat or energy recovery Desiccant wheel ERV 2 d aw of Thermodynamics Heat moves to cold wet moves to dry Heat Recovery Ventilator HRV transfers heat from the warm air stream to the cool air stream Energy Recovery Ventilator ERV transfers sensible and latent heat from warm moist air stream to the cool dry air stream ILLINCHS SUSTAINABSLE vi TECHNDLDGY CENTEB INDOOR CLIMATE RESEARCH AND TRAINING 28 Heat Recovery Ventilators HRVs ILLINOIS SUSTAINABSE ER TECHNDLDGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 29 j ILLINOIS SUSTAINABSE TECHNDLDGY CENTEB INDOOR CLIMATE RESEARCH AND TRAINING 30 10 Heat Recovery Ventilators HRVs Must be installed in an accessible place for service Should be inside the conditioned space for maximt efficiency ILLINCHS SUSTAINABSLE vi TECHNDLDGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 31 Primary System Design Choices Balanced with heat or energy recovery Different efficiency ratings for HRVs and ERVs Sensible Recovery Efficiency SRE is the number that define
3. 62 2 2013 Ke ILLIMORS SUSTAINABLE e TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 48 2 19 2015 16 2 19 2015 Broan Fan Upgrade Kit e eS 690 Bath Fan Upgrade Kit ee The BROAN bath fan upgrade kit lets you convert your old bath fan to a brand new unit in just 10 minutes Improve performance Va reduce the sound level and upgrade the appearance of your v economy fan in minutes Models Duct Size CFM 0 10 Compare 690 60 Add SES ILLINCHS SUSTAINABSLE T TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 49 Add control If there is a decent fan on a wall switch can add a control that runs the fan on a schedule without requiring a new fan api ILLINOFS SUSTAINABLE vi euo CENTE INDOOR CLIMATE RESEARCH AND TRAINING 50 ASHRAE 62 2 Resources www ASHRAE org 62 2 User s Manual available through Resources amp Publications Detailed step by step user guide through the Standard 54 00 ASHRAE Guideline 24 2008 Beyond the Standard details on IAQ commissioning and documenting 54 00 Residential Ventilation Handbook Paul H Raymer McGraw Hill 2010 52 45 62 2 System Checklist Infiltration Credit amp Existing Homes Credit spreadsheet System Documentation Sheet www HeyokaSolutions com Residential Energy Dynamics http www residentialenergydynamics com Home aspx ResVent App for iPhone and iPad www karg com resvent622 htm ap ILLINOSS SL TAIN ABLE ei
4. AINABSE eil TECHNOLOGY CENMTES INDOOR CLIMATE RESEARCH AND TRAINING 8 XB1IOH 6 Duct r Gauge BSsure D Inches of Wal Static Pr imH20 30 40 50 60 Aiow CFM Cubic Feet per Minute ILLINOIS PUSTAINA DLE ei TECHNOLOGY ERMTIR INDOOR CLIMATE RESEARCH AND TRAINING 5 System Choices Exhaust Only Air King Model ESVD 2 set up speeds Low 30 40 50 60 70 90 100 120 High 80 110 130 amp 150 Optional 26w night light Optional motion sensor Optional humidity sensor All airflow below 130 cfm 0 3 sones Jg o KL Ventilation Products ILLINCHS SUSTAINABLE vi TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 10 System Choices Exhaust Only DeltaBreez CFM 50 to 124 Sones lt 0 3 Power 5 6 to 20 watts Humidity control a ILLINOIS STINE TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 11 System Choices Exhaust Only Fantech amp fantech BN FQ80L Sones 0 4 Sones lt 0 3 Power 30 watts Power 25 watts Light 26 4 ILLINOIS SUSTAINABSLE di TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 12 2 19 2015 Exhaust Fans Options Wall mounted f ceiling mount isn t possible Example rnd Model How Sones Duct w Cont ILLINCHS SUSTAINABSLE vi TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 13 Local Exhaust Kitchen Fans Range hoods Exterior mounted fan g ILLINOIS SUSTAINA
5. BSE TECHNDLDGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 14 Kitchen Exhaust Fan Venmar S1311LS range hood with 40 CFM background amp 75 160 and 270 CFM on demand speeds Dakota Supply Group ILLINOIS SUSTAINABSLE di TEEHROLUDXY ERM TEE INDOOR CLIMATE RESEARCH AND TRAINING 15 2 19 2015 System Choices in line fans ILLINCHS SUSTAINABLE vi TECHNDLDGY CENTEB INDOOR CLIMATE RESEARCH AND TRAINING 16 In line exhaust fans Photos courtesy of Wisconsin Weatherization Program LINON USRTAINADSE TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 17 In line exhaust fans Motion sensing grille In line fan with lighted grilles pu f A Pee f 14 Ab ILLINCHS SUSTAINABLE ei TECHN DOL GY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 18 2 19 2015 2 19 2015 Allowable exhaust flows 5 Pa Limit 1200 1000 Unsafe Fan Flow CFM 600 800 L 1 400 i Safe 200 T T T T T 0 1000 2000 3000 4000 Blower Door Result CFM50 P o iLLINCHS SUSTAIN ABLE vi RCM ee ERNTER INDOOR CLIMATE RESEARCH AND TRAINING 19 Supply only ventilation Supply only Air Supply Air Fan OResidential Ventilation Handbook McGraw Hill Raymer 2009 4 ILLINOSS SUSTAINABLE INDOOR CLIMATE RESEARCH AND TRAINING TECHNOLOGY CENTER 20 Supply Ventilation to Furnace Return Ducts must be tight or they can bring in bad air Must have good moto
6. OOR CLIMATE RESEARCH AND TRAINING TECHNOLOGY CENTER 43 System design choices system distribution e Inexpensive to install but marginally effective and expensive to operate Both systems have to run simultaneously Stale air is not removed at polluting locations Very difficult to balance N Air handler return Stale air from house P E Zz E y y H d Fresh air to house HRV Uso LLINCHS SUSTAIMABLE Sat TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 44 System design choices system distribution Well filtered HRV installation http www ventsolutionsfbx com home Beautiful installations Ventilation Solutions Fairbanks AK TECHNOLOGY CENTER 45 eil ILLINOIS SUSTAINABLE INDOOR CLIMATE RESEARCH AND TRAINING Install it so it works Design it right Certified Fan Curve WEN cfm iLLINCHS SUSTAINABLE T IPSI CAN Tai RESEARCH AND TRAINING 46 Low cost strategies um LINGIS SUSTAINABLE e MLO CENTE INDOOR CLIMATE RESEARCH AND TRAINING 47 Local Whole Building Combination Use high quality DC motor fan to serve as local bathroom or kitchen ventilation and whole building ventilation Best if bathroom is centrally located Bathroom door must remain open most of the time Undercut bathroom door for some communication when door is closed Not best practice but complies with
7. OOR CLIMATE RESEARCH AND TRAINING 5 System Choices Exhaust Fans Ji Through wall pr UN P z Bath fans Should be certified by HVI for both air flow and sound WP Ceiling insert fhe 2 8 ZG HVI CERTIFIED aA ALNO SURTAINA BE e TECHNDLDGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 6 D 2 19 2015 System Choices Exhaust Only Panasonic WhisperGreen Panasonic s EN as Mm Rest bik Beste Ee Heiser Pee UCET pe gigs Lat Ti Nat Film n Six WhisperGreen Select Base Models FV 05 11VKSL 130 to 110 CFM integrated multi speed LED Light FV 05 11VKL1 50 80 110 CFM single speed LED Light FV 05 11VKS1 30 to 110 CFM integrated multi speed FV 05 11VK1 50 80 110 CFM single speed FV 11 15VK1 110 130 150 CFM single speed FV 11 15VKL1 110 130 150 CFM single speed LED Light Customizable all in one fan and fan LED light combinations Pick A Flow speed selector satisfies designed air flow Plug N Play technology provides up to three value added features Revolutionary DC motor with SmartFlow technology ILLINS EUSXTAINATLE vi TECHNDLDGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 7 System Choices Exhaust Only Broan Nutone 110 CFM ULTRASense H Humidity Sensing Technology fans react to a quick rise in humidity to turn the fan on ULTRASilent Sound Technology less than 0 3 Sones Power 8 3 Watts NuTone Ultra Series SB110H ILLINOIS SUST
8. Ventilation Solutions Paul Francisco Indoor Climate Research amp Training zw ILLINOSS PUTIN ALBLEE I R IMAT SEARCH A RAINI T TECHNDLDG Y CENTER NDOOR CL E RESEARC NO T WING Ventilation Consensus standard is ASHRAE 62 2 for residential Has whole building and local exhaust requirements Has alternate path for existing buildings with insufficient local exhaust Often but not always met using exhaust fans ap ILLINOIS SUSTAINABLE en Eeuno 5a Eau INDOOR CLIMATE RESEARCH AND TRAINING 2 Considerations gt 62 2 does NOT require exhaust there may be times when you want something else Combustion safety concern Though it is rarely the 62 2 fan that is the big issue o Humidity concern Typically caused by non porous materials like vinyl wallpaper When exhaust seems like a bad idea consider supply or balanced wi LINGUI EUSTAINA T tries ptr ee INDOOR CLIMATE RESEARCH AND TRAINING TECHNOLOGY CENTER 3 2 19 2015 2 19 2015 Exhaust Fans Options gt Use existing fans If they are working ok o Just add an appropriate control Put exhaust into a bathroom or kitchen o Reduces the local exhaust deficit o ILLINCHS SUSTAINABLE vi E DASS T ENTER INDOOR CLIMATE RESEARCH AND TRAINING 4 Most of next bunch of slides courtesy Paul Raymer from joint presentations in the past indicated by pr in upper right um ILLINOFS SUSTAINABLE e TECHNOLOGY ESTER IND
9. em 6007 awAey Ned IH MEJDIN ooqpueH uone RuasA TIET ab aen e 4nos readily accessible L But if installed in an obvious place is likely to be turned off api ILLINCHR SLT AEE T TECHN L DGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 39 2 19 2015 13 Controls Whole Building Ventilation Control alternatives Honeywell u n e Will require o appropriately labeled EE o readily accessible after shut down o Both of these controls require circuit breaker or system override to shut off JapAdy ILLINOIS EUSXTAINATRLE IMA R A U sel TECHNDLDGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 40 Controls Tamarack Technologies Inc am ILLINOIS SUSTAINABSLE IMA AR U eil TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 41 Controls Whole Building Ventilation Variable speed control Push button override boost the fan to full speed for an adjustable time Bright blue LED fan on indicator Can be connected with a second control to a single fan High speed should not exceed combustion requirements of section 6 4 No FAN OFF control could set min hour to 0 Not labeled as Whole Building Ventilation Control May only work reliably with Fantech fans Vv Y W YF Fee ST UO SUSTAINABLE INDOOR CLIMATE RESEARCH AND TRAINING TECHNOLOGY CENTER 42 2 19 2015 14 2 19 2015 Results of bad terminations Different attics H ILLINCHS SUSTAINABLE IND
10. rized damper Must be controlled to run even if no heat is needed Furnace fan energy use can be high Intake must be kept clean of yard debris and other outdoor stuff a ELINGS SUSTAINABLE e TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 21 Supply Ventilation to Furnace Return Bedroom Kitchen am Fan cycler switch runs air handle at 20 minute intervals Supply side of air handler lLLINCHS SL TIN ABLE vi TECHNOLOGY CRMTER INDOOR CLIMATE RESEARCH AND TRAINING 22 Supply Ventilation to Furnace Return Outside air supplied to return side of the air handler Aldes CAR Ex o a D AirCycler Field Controls Damper a ILLINOSR PUSTAHAN E TECHNOLOGY CENTEA INDOOR CLIMATE RESEARCH AND TRAINING 23 Supply Ventilation to Furnace Return j ILLINOIS SUSTAINABSE TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 24 2 19 2015 2 19 2015 Balanced ventilation Exhaust and supply ventilation should have equal cfm Balanced without recovery o Heat Recovery Ventilator HRV unit transfers sensible heat only with no humidity transfer Energy Recovery Ventilator ERV Unit transfers sensible heat and humidity ILLINCHS SUSTAINABLE vi TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 25 pr Balanced with heat or energy recovery dedicated ducting Exhoust x OUTDOORS IND ORS ventilation unit Source OResidential Ventilation Handbook McGraw Hill
11. s the sensible energy recovered minus the supply fan energy and preheat coil energy divided by the sensible energy exhausted plus the exhaust fan energy This calculation corrects for the effects of cross leakage purchased energy for fan and controls as well as defrost Systems Generic Specifications CFM at low high speed 7 5 E 5 Apparent sensible effectiveness at 0 C This info is available on the HVI Warranty on components certification sheet Warranty on the core ILLINOIS SUSTAINABSE eil TECHNOLOGY CEMTES INDOOR CLIMATE RESEARCH AND TRAINING 32 Controls ILLINOIS SUSTAINABSLE ei TECHNOLOGY CENTER INDOOR CLIMATE RESEARCH AND TRAINING 33 N Ss Single room ERV 64 146 108 235 83 aL 5 years 5 years Lifetime Lifetime 2 19 2015 11 62 2 2010 2013 Controls Whole Building Ventilation The fan on switch on a heating or air conditioning system for systems introducing ventilation air through an HVAC system Readily accessible override control must be provided to the occupant gt Local exhaust fan switches and fan on switches as override controls Controls including the fan on switch of a conditioning system must be appropriately labeled Lj ILLINOSS PUTIN AE I R IMAT SEARCH A RAINI T TECHNDLDG Y CENTER NDOOR CL E RESEARC NO T WING 34 Controls Whole Building Ventilation gt ASHRAE 62 2 2010 requires that the occupant have the ability to shut
12. the system off gt Intermittent operation requires a timer or other control gt It is critical that occupants know why the fan is running all the time and that turning it off may have an impact on their health and comfort aps gt LINGIS SUSTAINABLE e TECHNOLOGY CENTE INDOOR CLIMATE RESEARCH AND TRAINING 35 Controls gt For blower door testing the ventilation system needs to be turned off Some controls are multiple speed Whole building ventilation is generally set to the lower flow Both lower and higher flow rates should be tested He LING PUTA A e tiers pte ee INDOOR CLIMATE RESEARCH AND TRAINING TECHNOLOGY CENTER 36 2 19 2015 12 Controls Local Exhaust Ventilation gt Control devices are permissible provided they do not impede occupant control Shut off timers Occupancy sensors Multiple speed fans Combined switching IAQ sensors Etc a ILLINOIS SUSTAINABLE vi TECHNOLOGY CENTEH INDOOR CLIMATE RESEARCH AND TRAINING 37 Controls Local Exhaust Ventilation Standard wall switch Delay timer Wore Ax kr Crank timer Se gt Motion detector IAQ Control gt IAQ control Delay Timer ee Motion Detector TECHN LDGY CENTEB INDOOR CLIMATE RESEARCH AND TRAINING Chih C 1 um e Humidity Control e LLINOR SL TAIN ABLE 38 Controls Whole Building Ventilation Complies with 62 2 2010 appropriately labeled Pimary Venton Syt
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