R. BOUWMEESTER & ASSOCIATES

Transcription

1 R. BOUWMEESTER & ASSOCIATES Land Development Engineering 165 Browning Trail Barrie, Ontario, Canada L4N 5E7 tel/fax (705) Development Engineering Environmental Noise Studies Shadow Impact Studies Sun Position Analyses May 8, 2017 File: A16011 Innovative Planning Solutions 150 Dunlop Street East, Suite 201 Barrie, Ontario L4M 1B2 Attention: Vanessa Simpson, B.ID., M.PI. Junior Planner & Planning Technician Dear Ms. Simpson: Re: Noise Feasibility Study - Revised Proposed Mixed-Use Development Centreville Stroud 7958 Yonge Street, Stroud Town of Innisfil We are pleased to provide you with this update to our August 26, 2016, preliminary noise feasibility study for the above-captioned proposed development located northwest of Yonge Street (County Road 4, formerly Highway 11) and Victoria Street in Stroud. Revisions are highlighted in gray. We understand that this study is required by the Town of Innisfil as they consider potential traffic noise impacts on the proposed residential uses contained within your applications to amend the Official Plan and Zoning Bylaw. Our report, in addition, addresses potential noise impacts from the proposed gas station and two commercial buildings. The traffic noise source of concern is Yonge Street. We have determined that Victoria Street traffic is acoustically insignificant; it is not discussed further herein. This noise assessment is based on a Conceptual Site Plan dated April , prepared by your office. The Plan includes 94 proposed townhouse lots, 12 single-detached lots, a block for two single-storey commercial buildings (Block 16), and a block for a gas station (Block 17). The gas station and commercial buildings are located along the Yonge Street frontage. We have assumed that the townhouses will be two storeys in height with private outdoor living areas in the rear yards. We understand that the gas station will not include a car wash, however, amenities such as vacuums and air pumps may be provided. The gas station will include a convenience store. 1

2 Since detailed architectural and mechanical design info is not available for the gas station yet, this assessment makes general assumptions about noise sources typical for such a use based on our experience, and this report provides general noise mitigation recommendations that can be taken into account at the detailed design stage. The above also applies to the two proposed single-storey commercial buildings on Block SUMMARY STATEMENT Based on our assessment, we are of the opinion that: The subject site can be developed for the uses proposed in a manner that meets the MOECC noise guidelines provided that the recommendations made herein are followed. 2. BACKGROUND To assist us in the preparation of this letter report we have reviewed the following: MOECC publication Environmental Noise Guideline Stationary and Transportation Sources Approval and Planning (Publication NPC-300, Aug 2013 ver. #22) Town Of Innisfil Zoning By-Law No (zoning map attached) Town Of Innisfil Noise By-Law No County of Simcoe GIS mapping Google Earth street view photos. 3. SITE AND SURROUNDINGS The 5.21 ha site is located in the northwest quadrant of Yonge Street and Victoria Street in Stroud. It is vacant other than for the remains of several farm buildings at the north end of the site. The property has about 216 m frontage along Yonge Street and 29 m along Victoria. Zoning By-law zones the subject site Future Development FD. The land to the east across Yonge Street is zoned Commercial Village CV; this zoning also applies to a portion of the abutting lands to the north and south. The remainder of the abutting land to the south is zoned Residential R1 and Community Service CS; the existing residential subdivision to the west and north-west is zoned R1. (See zoning map attached.) A variety of plazas and commercial buildings are located along the east side of Yonge Street across from the site. A 1-½ storey dwelling lies to the north of the site beyond a CV-zoned strip of land. Beyond that are several businesses (zoned CV) in converted dwellings. Similar conversions are located to the south along Yonge Street where there is a mix of commercial and residential between the subject lands and Victoria Street. Along the north side of Victoria Street, between Yonge Street and the subject site, are several dwellings and a church. Based on a recent site visit and a review of air photos, no significant noise sources are located within 500 m of the proposed residential uses. 2

3 4. MOECC REFERENCES Reference is made to Ministry of the Environment and Climate Change (MOECC) publication, Environmental Noise Guideline Stationary and Transportation Sources Approval and Planning (Publication NPC-300, Aug 2013 ver. #22) which came into effect in October MOECC NOISE GUIDELINES AND CRITERIA 5.1 Transportation Sound Level Limits NPC-300 recommends various sound level limits for indoor and outdoor settings, under different time scenarios, and under differing uses. Tables 1 and 2 following provide the NPC-300 sound level limits for road noise. TABLE 1 - Sound Level Limits (Leq) Location Time Period Limit (dba) Road Outdoor Outdoor Living Area (OLA) Day hrs 55 Indoor Living/Dining Room All hrs 45 Bedroom (day) Day hrs 45 Bedroom (night) Night hrs 40 General office, retail stores, etc. Day hrs 50 The NPC-300 limits and mitigation requirements for traffic noise can be summarized as follows: TABLE 2 - Sound Level Limits and Standard Mitigation Requirements Outdoor Sound Level Limits (dba) Plane of Window Day Night OLA Do nothing Noise barrier or Warning Clause A Mandatory noise barrier 1. >60 Provision for future A/C Mandatory A/C 3. >65 4. >60 Special building component design >65 4. >60 Notes: 1. Warning Clause B required if net resultant sound level is dba (to max. allowable 60 dba). 2. Warning Clauses B and C required. 3. Warning Clauses B and D required. 4. Add 5 dba for general offices, reception areas, retail stores, etc. 5.2 Stationary Sound Level Limits Table 3 following provides the NPC-300 sound level limits for stationary noise (typically from commercial and industrial operations) in a Class 1 urban area. 3

4 TABLE 3 NPC-300 Exclusionary Sound Level Limits (Class 1) (Leq(1)) Location Time Period Limit (dba) Outdoor Points of Reception Day hrs 50 Eve hrs 50 Plane of Window Day hrs 50 Eve hrs 50 Night hrs NOISE SOURCES 6.1 Traffic The road traffic projections used in this study, as provided by JD Engineering, are summarized in Appendix A. As indicated earlier, we considered only Yonge Street traffic noise since we have determined Victoria Street traffic to be acoustically insignificant. 6.2 Stationary Although gas stations are not considered by the MOECC to be stationary sources, we have considered the following potential noise sources. No other noise sources have been identified. Roof-top HVAC equipment (associated with the convenience store) Vacuums Air Pumps (assumed to be acoustically insignificant) On-site traffic Garbage pick-up Hydro transformer. Roof-top HVAC equipment has also been assumed for the Block 16 commercial buildings. We note that NPC-300 does not consider occasional deliveries to and the removal of garbage from convenience stores as stationary sources. Similarly, parking lots at commercial facilities are not considered as stationary sources. Hydro transformers are potential noise sources on sites such as this; however, none are shown on the Conceptual Site Plan. We recommend that they be located in areas where they will have the least acoustic impact. In any event, noise excesses can be dealt with by screening. Given the above, only roof-top HVAC units and vacuums will be assessed further. Since equipment information is not yet available, we have assumed the following: one 8.5-ton HVAC unit for the convenience store (based on one ton/350 sf). one vacuum at the gas station. six 6.0-ton HVAC units per commercial building. 4

5 7. NOISE ANALYSIS PROCEDURES 7.1 Traffic This study takes into account the increase in sound level with building height (due to a reduction in the effect of ground attenuation). Accordingly, sound level predictions at multi-level building faces are based on a worst-case upper floor scenario. Ground attenuation was taken into account elsewhere as per MOECC guidelines. Table 4 shows the assumed building and receptor heights (worst-case) used in this analysis. TABLE 4 Building and Receptor Heights Housing Type (see Concept Plan) No. Storeys Receptor Height (m) Townhouses 2 storeys 4.5 Building shielding has not been taken into account since building locations, heights and grading details have not been finalized. As a result, actual sound levels may be less than predicted. We note that the predicted sound levels are worst-case and do not rely on intervening buildings for sound level reductions. Accordingly, this analysis is independent of phasing. OLA sound levels are based on ground level OLAs with receptor heights set at 1.5 m as per MOECC guidelines. Decks and balconies are exempt from the MOECC outdoor noise limits unless they are the only outdoor living area available to the resident, and they are at least 4.0 m deep, outside the building façade, and unenclosed. Elevated OLAs, such as roof decks, terraces, etc., are not proposed in this development. 7.2 Stationary Typical 8.5 ton HVAC units, such as Carrier Series 48TF009, have noise ratings of 8.7 bels (87 dba) (see attached spec sheet). We have assumed that the HVAC unit operates for a full hour during the day-time period. Assuming it runs 75% of the time during the evening and 50% at night results in sound level reductions of about 1 db and 3 db, respectively. Similarly, the 6.0 ton units have noise ratings of 8.1 bels (81 dba) each. (We have assumed a centrally located unit on each commercial building with a combined sound rating of 89 dba.) Based on field measurements taken on other projects, we have assumed a reference sound level of 68 dba for the vacuum at a distance of 15 m. Because of the nature of the sound, we have included a 5 db penalty for tonality. It is assumed the vacuum runs 5 minutes per hour. 8. SOUND LEVEL PREDICTIONS 8.1 Traffic As per the April 26, 2017, Concept Plan, residential uses are no longer proposed along the 5

6 Yonge Street frontage. Accordingly, noise barriers are no longer required. An overall summary of the predicted outdoor day-time and night-time sound levels for each of the receptor locations is presented in Table 5. See Figure 2 for receptor locations. The results confirm that noise controls are not required for any of the residential lots or blocks. TABLE 5 - Predicted Outdoor Sound Levels (dba) 8.2 Stationary Receptor Location Outdoor Equivalent Sound Levels (Leq) Due to Road Traffic (Unmitigated) Day Night OLA R1 2nd floor R2 OLA R3 OLA R4 2nd floor R5 2nd floor R6 OLA R7 OLA R8 2nd floor R10 1st floor (commercial) Table 6 shows the predicted outdoor sound levels (without noise controls) that can be expected from typical operations at the proposed gas station and from roof-top HVAC equipment at the two proposed commercial buildings on Block 16. See Figure 3 for Receptor locations. Table 6 reveals that the predicted noise levels exceed the MOECC limit in some cases at night. TABLE 6 - Predicted Equivalent Hourly Sound Levels (Leq(1)) (dba) - uncontrolled Predicted Noise Level (uncontrolled) Location Day Eve Night Comments ( ) ( ) ( ) NPC-300 Noise Limit R exceeds at night R meets MOECC R exceeds at night 9. RECOMMENDED NOISE CONTROLS 9.1 Traffic The following summarizes typical acoustic requirements for traffic noise and describes how they apply to this proposed development. Warning clauses must be registered on title and included in Agreements of Purchase and Sale or Lease where sound level limits are exceeded. Locations requiring warning clauses, and 6

7 suggested wording, are given in Appendix B (also see Figures). Central air conditioning is required where the day-time outdoor sound level in the plane of a living/dining/bedroom window exceeds 65 dba (night-time 60 dba). Central air conditioning is not meant to be a sound mitigating measure, although it does provide the dwelling occupants the option of closing windows if so desired. Based on the April 26, 2017, Concept Plan, this does not apply to any of the proposed residential units. Special building component design, to ensure that indoor sound levels meet the limits specified in Table 1, is required for residential dwelling units where day-time outdoor sound levels in the plane of a living/dining/bedroom window due to road traffic exceed 65 dba (night-time 60 dba). Based on the April 26, 2017, Concept Plan, this does not apply to any of the proposed residential units. Forced air heating systems, with duct work sized to accommodate the future installation of central air conditioning at the dwelling owners option and expense, are required for residential dwelling units where the day-time outdoor sound level in the plane of a living/dining/bedroom window exceeds 55 dba (night-time 50 dba). Based on the April 26, 2017, Concept Plan, this does not apply to any of the proposed residential units. Building components meeting the non-acoustic requirements of the Ontario Building Code will provide adequate acoustic insulation for these dwellings. Acoustic barriers, to protect outdoor living areas, are required where the day-time outdoor sound level in an OLA exceeds 60 dba. The MOECC s sound level objective for outdoor living areas is 55 dba, however, when noise controls are not provided, sound level excesses of up to 5 dba are permitted with an appropriate warning clause (Type A). Residual noise levels (in excess of 55 dba) resulting from reduced noise barrier heights must be covered through the use of an appropriately worded warning clause (Type B). Notwithstanding the above, the Town of Innisfil requires noise barriers where the day-time noise level in outdoor living areas exceeds 55 dba, and these barriers must reduce the sound level to below 55 dba. Based on the April 26, 2017, Concept Plan, this does not apply to any of the proposed residential lots. 9.2 Stationary Noise The noise level excess at night is due in large part to the vacuum. This can be offset by adding roof screens (e.g. acoustic screens, parapet walls, mansard roofs, etc.) around the HVAC units to reduce their noise levels; simply breaking the line of sight will result in sound level reductions of at least 5 dba. Roof screens would be necessary only on the sides facing the residential receptors (i.e. acoustically they are not required facing Yonge Street). Alternatively, the noise criteria can be met if the vacuum operates on a timer that prevents its use between 11:00 PM and 7:00 AM. Careful equipment type and location selection will also serve to minimize the noise controls needed. 7

8 10. DISCUSSION AND RECOMMENDATIONS 10.1 Traffic Future Yonge Street traffic sound levels are predicted to meet the MOECC noise criteria on all of the residential lots/blocks - noise controls are not required for any of these lots/blocks Stationary The predicted sound levels resulting from typical operations at the proposed gas station have the potential to exceed the MOECC night-time limit at the nearest residential receptors, both existing (R9) and proposed (R4). We do not expect noise issues during the day-time or evening. The predicted sound level excesses are relatively minor and can be readily controlled through the use of appropriate screening and/or by prohibiting the use of the vacuum at night. Sound level excesses are not expected from rooftop equipment at the two proposed commercial buildings on Block 16. Since detailed site plans and architectural and mechanical design info are not available yet for the gas station and the two proposed commercial buildings on Block 16, we recommend that the assumptions made herein be verified through detailed stationary noise impact reports at the site plan stages, prior to building permit issuance, for Blocks 16 and SUMMARY AND CONCLUSIONS In summary, no noise controls and no further acoustic review are required for the proposed residential uses, however, we recommend that detailed noise studies be undertaken for Block 16 and for the proposed gas station (Block 17) at the site plan stages for these blocks. With the incorporation of the acoustic requirements and recommendations contained herein, noise levels from the operation of the proposed gas station and commercial block will be within the limits specified by the MOECC. In summary, it is our opinion that the proposed development is acoustically feasible. We trust that this feasibility study satisfactorily addresses your current requirements. Yours very truly, R. BOUWMEESTER & ASSOCIATES Ralph Bouwmeester, P. Eng. Principal Attach. 8

9 ATTACHMENTS Conceptual Site Plan Figure 1 Location Plan Figure 2 Noise Source / Receptor Plan Figure 3 Noise Control Plan Appendix A Road Traffic Data Appendix B Suggested Warning Clauses Appendix C - Sample Sound Level Calculations Assumed HVAC Sound Data Zoning Map 9

10 CONCEPTUAL SITE PLAN TOWN OF INNISFIL FILE: SUBJECT LANDS KEY MAP CONCEPTUAL SITE PLAN CENTREVILLE STROUD LOT 11, CONCESSION YONGE STREET / HIGHWAY 11 / COUNTY ROAD 4 TOWN OF INNISFIL COUNTY OF SIMCOE m SCALE 1: m TOTAL LANDS 5.21 ha (12.89 acres) 8.5m ROAD WIDENING LAND USE STATISTICS LAND USE AREA (ha.) UNITS 4.5m TOWNHOUSE LOT m RESIDENTIAL LOT m CONDO ROAD (includes 1.5m sidewalk on one side) 0.57 STORMWATER MANAGEMENT POND 0.44 COMMUNAL SEPTIC BED COMMERCIAL BLOCKS m ROAD WIDENING ALONG YONGE STREET 0.18 TOTAL CURRENT OP DESIGNATION - VILLAGE COMMERCIAL AREA CURRENT ZONING - FUTURE DEVELOPMENT ZONE (FD) Centreville Site Plan.dwg DATE: APRIL 26, 2017 PROJECT: StroudCentreville DRAWN BY: V.S.

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14 APPENDIX A ROAD TRAFFIC DATA JD Engineering The following data were provided by JD Engineering : Yonge Street Year 2031 AADT 16,880 Percent trucks M / H 9.15% Total Victoria Street Year 2031 AADT 4,080 Percent trucks M / H 2.62% Total Ministry of the Environment The MOECC recommended splits for day/night traffic are: highways 85/15 arterial roads 90/10 SUMMARY OF DATA USED IN THIS STUDY For the purpose of this noise assessment, the following data apply: Yonge Street (Year 2031) Traffic volume (AADT) 16,880 Day/night split (%) 85 / 15 Percent trucks M / H * 9.15% Posted Speed 50 kph Number of lanes 2 ROW width (m) varies Road Grade (%) <2% Pavement Type normal asphalt *assumed split 50/50

15 1 of 1 5/6/2017 1:25 PM Ralph Bouwmeester Subject: Stroud Centreville - Traffic Data From: "Maitham Dinani" <maitham.dinani@jdengineering.ca> Date: 5/2/2017 4:38 PM To: "'Ralph Bouwmeester'" <rbouwmeester@rogers.com> CC: "'John Northcote'" <john.northcote@jdengineering.ca>, "'Vanessa Simpson'" <vsimpson@ipsconsultinginc.com> Hi Ralph, Please see below traffic data for the Stroud Centreville development for your use: The calculated AADT and truck % for the total 2031 scenario is and 9.15% for Yonge St and 4080 and 2.62% for Victoria St respectively. The AADT volumes were calculated using the PM peak hour volume x 10. The truck % provided include both medium and heavies. Based on our review of the 2013 County of Simcoe Transportation Master Plan, a background traffic growth rate of 1.5% / year was calculated with a 48% anticipated increase in traffic in the County from 2006 to This background growth rate was applied to the existing (2016) traffic counts to determine future traffic projections. This background growth rate has been accepted by the County. Let me know if you require any additional information. Thank you, Maitham Dinani JD Engineering Phone: (416)

16 APPENDIX B SUGGESTED WARNING CLAUSES The following warning clauses must be registered on title and included in Agreements of Purchase and Sale or Lease where applicable: TYPE A: Purchasers/tenants are advised that sound levels due to increasing road traffic may occasionally interfere with some activities of the dwelling occupants as the sound levels exceed the sound level limits of the Municipality and the Ministry of the Environment. TYPE B: Purchasers/tenants are advised that despite the inclusion of noise control features in the development and within the building units, sound levels due to increasing road traffic may on occasions interfere with some activities of the dwelling occupants as the sound levels exceed the sound level limits of the Municipality and the Ministry of the Environment. TYPE C: This dwelling unit has been designed with the provision for adding central air conditioning at the occupant s discretion. Installation of central air conditioning by the occupant in low and medium density developments will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the sound level limits of the Municipality and the Ministry of the Environment. TYPE D: This dwelling unit has been supplied with a central air conditioning system which will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the sound level limits of the Municipality and the Ministry of the Environment. TYPE E: Purchasers/tenants are advised that due to the proximity of the adjacent existing and future commercial developments, noise from these facilities may at times be audible.

17 APPENDIX C SAMPLE SOUND LEVEL CALCULATIONS STAMSON 5.0 NORMAL REPORT Date: :17:13 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: 16011r1.te Time Period: Day/Night 16/8 hours Description: Receptor R1 day/night at wall Road data, segment # 1: Yonge St (day/night) Car traffic volume : 13035/2300 veh/timeperiod * Medium truck volume : 656/116 veh/timeperiod * Heavy truck volume : 656/116 veh/timeperiod * Posted speed limit : 50 km/h Road gradient : 1 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input: 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : Medium Truck % of Total Volume : 4.57 Heavy Truck % of Total Volume : 4.57 Day (16 hrs) % of Total Volume : Data for Segment # 1: Yonge St (day/night) Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 1 (Absorptive ground surface) Receiver source distance : / m Receiver height : 4.50 / 4.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 0.00 Results segment # 1: Yonge St (day) Source height = 1.46 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Total Leq All Segments: dba Page 1 of 3

18 Results segment # 1: Yonge St (night) Source height = 1.46 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Page 2 of 3

19 STAMSON 5.0 NORMAL REPORT Date: :17:45 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: 16011r2.te Description: Receptor R2 OLA Time Period: 16 hours Road data, segment # 1: Yonge St Car traffic volume : veh/timeperiod * Medium truck volume : 656 veh/timeperiod * Heavy truck volume : 656 veh/timeperiod * Posted speed limit : 50 km/h Road gradient : 1 % Road pavement : 1 (Typical asphalt or concrete) Data for Segment # 1: Yonge St Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 Surface : 1 (Absorptive ground surface) Receiver source distance : m Receiver height : 1.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 0.00 Results segment # 1: Yonge St Source height = 1.46 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES: Page 3 of 3

20 Stationary Noise Analysis R. Bouwmeester & Associates Centreville Stroud 165 Browning Trail 7958 Yonge Street, Stroud Barrie, ON L4N 5E7 tel/fax May 8, 2017 Predicted Noise Levels (Uncontrolled) Day ( hrs) R4 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 49 Predicted Noise Levels (Uncontrolled) Evening ( hrs) R4 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 48 Predicted Noise Levels (Uncontrolled) Night ( hrs) R4 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 47 * includes 5 db penaly for tonality Predicted Noise Levels (Uncontrolled) Day ( hrs) R5 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 48 Predicted Noise Levels (Uncontrolled) Evening ( hrs) R5 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 47 Predicted Noise Levels (Uncontrolled) Night ( hrs) R5 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 45 * includes 5 db penaly for tonality Predicted Noise Levels (Uncontrolled) Day ( hrs)

21 R9 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 49 Predicted Noise Levels (Uncontrolled) Evening ( hrs) R9 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 49 Predicted Noise Levels (Uncontrolled) Night ( hrs) R9 Noise Source Ref Leq Ref Dist duty cycle cycle corr No. No. Corr. dist dist attn shielding barrier Leq HVAC (Blk 17) vacuum* (Blk 17) HVAC (Blg 1,Blk 16) HVAC (Blg 2, Blk 16) Total Equivalent Sound Level (dba) 48 * includes 5 db penaly for tonality

22 48TF, 50TFF Single Packaged Rooftop Units Physical Data Back to Article 48TF Standard-Efficiency Single-Packaged Rooftop Units 3 to 12½ Nominal Tons 48TF - Electric Cooling/Gas Heating 50TFF - Electric Cooling/Electric Heating Dimensions TONNAGE DIMENSIONS (in.) LENGTH WIDTH HEIGHT / / /8 57 3/4 41 5/ /8 57 3/4 49 5/16 Performance & Sizing Information 48TF GAS/ELECTRIC UNIT 48TF NOMINAL TONS NET COOLING CAPACITY (Btuh) TOTAL kw SEER Belt Drive Direct Drive EER SOUND RATING (Bels) , , , UNIT NOMINAL 48TF TONS NET COOLING TOTAL CAPACITY (Btuh) kw EER SOUND RATING (Bels) IPLV , /2 85, /2 98, , /2 144,

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