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HomeMy WebLinkAboutFile Documents.309 Oak Ln.0021-2022-BRES (21) Sense Net-zero Energy Building Solutions shApe Architecture Morgan Law,Taylor Hawley 23 Lincoln Street,Suite 200 Denver,CO 80203 21 December 2021 —REV2—PERMIT AND CONSTRUCTION DOCUMENT Project: CHAMPAIGNE RESIDENCE,309 Oak Lane,Aspen,Colorado New construction of an all-electric single-family home BrightSense offers building science consulting and net-zero energy and mechanical systems design services to help accelerate the transition to heatpumps and all-electric homes. We work for homeowners, architects,builders, and contractors and together achieve new levels of energy efficiency,performance, and comfort, affordably, by applying modern and innovative products and technologies. We have been hired to design and right-size the following systems for the above project. MECHANICAL SYSTEMS DESIGN AND SPECIFICATION This document describes the mechanical systems that have been proposed for the CHAMPAIGNE RESIDENCE, which will be built using the panelized Phoenixhaus Alpha+wall and roof system to achieve a high level of indoor comfort and air quality while minimizing energy use For space conditioning. Based on ▪ Discussion with the architect ▪ Progress Set dated 9/21/2021 ▪ Manual J by Energy Innovations LLC dated 11/10/2021 ▪ Industry best practice 2018 IRC Outdoor design conditions:-15°F DB Floor area: 1,609 ft2 RECEIVED p}019 2 022 Page 1 of 14 rpillrENE-012 21 2 21-R 2BrightSense LLC www.brightsense.com/ 09/228/2022 J PH:720-W 4E FORCIAkLUAKINICE 1,mP BUILDING DEPARTMENT Sense CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Content BASED ON 1 CONTENT 2 HEATING AND COOLING REQUIREMENTS 3 COMFORT SYSTEMS 5 AIR-SOURCE HEATPUMP 5 ARCTIC HYDRONIC AIR-SOURCE HEATPUMP 6 HYDRONIC SYSTEM DETAILS 8 ELECTRIC BACKUP BOILER 9 HEATING SYSTEM 9 FRESH AIR VENTILATION SYSTEM 10 DOMESTIC HOT WATER SYSTEM 13 LIST OF MAJOR MECHANICAL EQUIPMENT AND COMPONENTS 14 RECEIVED p}0 -N?022 Page2of14 i�tg�tY to e„ 12 21 2 21-R 2 BrightSense LLC www.brightsense.com/ �ML09�//228/12022 Jg PH:720- S 4O FORCALkLUMJANCE BUILDING DEPARTMENT Brig ense CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Heating and cooling requirements Heating and cooling degree days To properly size the comfort systems for a home, it is essential to understand the local climate. First,we will look at degree days,which are widely used by professionals to 60 i evaluate the effect of outside air tempe- rature on building energy consumption. 50 , z Heating degree days(HDD)and cooling o� degree days(CDD)are a measure how cold 40 '� • y,� .• • p 9. or warm it was for how long,and are used :. to determine the energy required to heat • 'I "I and cool a building. Figure 1 shows the 3011 j ,1 I ,I.. actual HDD and CDD collected at Aspen II �. l ' I•. .•':1 Pitkin Airport,over the most recent four 20 1 .:_`l years (Source:www.degreedays.net).The I7. :• total averaged over these six years adds a;' up to , ', �i II ', Per. 8,600 Heating degree days p.a. I rr I r 1 , 11' t 550 Cooling degree days p.a. z _ m d 2 (Denver for comparison:6,000/1,000) 0 - 0 - a ' s 2 E u O f O N O Figure 1-Most recent 6 years of daily heating(red)and cooling(blue)degree day data A second piece of information is the :u0 annual BIN hour chart shown in Figure 2, 2010-2020 AVERAGE which is based on data collected over the 110o r TEMPERATURE BIN HOURS 2 ASPEN PITKIN CO SARD,CO US most recent 11 years again at Aspen Pitkin 1000 AVERAGE ANNUAL TEMPERATURE40*F Airport.This chart tells us how many hours 900 '2 at certain temperature intervals can be E expected in a typical year. It allows estima- 800 n ting the run time and energy consumption 700 = of the heating and cooling equipment. 600 m The red bars represent the hours when space heating will be required.A large 500 400 I portion of those are relatively mild temperatures. AVERAGE ANNUAL HEATING SEASON TEMPERATURE 34'F 300 I The green bars represent temperatures STAND-BY 1540 HOURS(411 when the space conditioning system 300 should normally be oFF, and the blue bars BELOW ZERO 74 HOURS(1%) 100 HEATING 7200 HOURS(82%) ( ) the occurrence of temperatures when T mp'at'oIn'erv,r� occupants may request cooling or air -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 10 15 80 85 90 95 100 105 110 conditioning. -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Figure 2—Average annual BIN-hour temperature data for Aspen,Colorado A yearly average of 74 hours of sub-zero degree temperatures have been recorded over these 11 years, many of which can be expected to occur early in the morning just before sunrise. RECEIVED p}L19 2022 Page 3 of 14 Room�„` 12 21 2 21-R 2 BrightSense LLC www.brightsense.com/ 09//228/22o222 j 720-RSFIEDN l P BUILDING DEPARTMENT s I e n se CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Heating and cooling loads A third piece of information required for properly sizing the comfort systems of a home are the structure's heating and cooling loads. Equipment selection based on rule of thumb rarely leads to comfortable and satisfied homeowners but rather inflated energy bills and reduced equipment life. ACCA Manual J is a standardized methodology that is widely recognized across North America and even required by many jurisdictions.The Manual J for the CHAMPAIGNE RESIDENCE was provided by Energy Innovations LLC and calls for the following peak loads on the 98%coldest and hottest days of the year. Peak loads Home Energy Simulation Heating Cooling BTU/hr Manual J 21,056 Figure 3-Simulated heating and cooling loads per ACCA Manual J A tight, energy efficient, and durable envelope provides a resilient structure featuring a high level of indoor comfort and indoor air quality without requiring a large heating and cooling system and high energy bills. It minimizes heating and cooling loads and reduces uncontrolled infiltration of outside air of unknown quality. It also results in more uniform wall and air temperatures throughout the home which is perceived as more comfortable in part because it lacks hot and cold spots. Heatin. Figure 4 is an excerpt from the Manual J and Component Btuh/ft2 Btuh %of load shows which envelope Walls 2.6 6300 29.9 Ventilation Glazing 14.4 5599 26.6 components contri- Doors 0 0 0 walls 'titration Ceilings 1.5 2002 9.5 bute which percentage Floors 1.6 2012 9.6 to the heating and Infiltration 1.5 3965 18.8 g Ducts 0 0 cooling loads of the Piping 0 0 Floors Humidification 0 0 home.The heating load Ventilation 1177 5.6 Ad ustments 0 Ceilings Total 21056 100.0 Glazing shows a relatively even distribution indicating Coolin• a well-thought-out Component Btuh/ft2 Btuh %of load design. Walls 0.5 1271 9.4 wall other 50%of summer time Glazing 19.7 7637 56.5 Internal Gains Doors 0 0 o heat gain can be Ceilings 0.6 765 5.7 Floors 0 0 0 attributed to the Infiltration 0.1 373 2.8 DUCTS 0 0 Infiltration glazing. Insulating and Ventilation 222 1.6 blocking shades could Internal gains 3250 24.0 Ceilings Blower 0 0 Glazing be used to reduce this Adjustments 0 Total 13518 100.0 impact and avoid a Figure 4-Sources of heat loss and heat gain per Manual J need for active cooling. The recorded climate data, the Manual J simulation,as well as the important design elements of the architectural plans were taken into consideration when designing the following systems to meet the specific requirements of the CHAMPAIGNE RESIDENCE. RECEIVED 01/19E42022 Page 4 of 14 ki�tltflphu „` 12 21 2 21-R 2 BrightSense LLC www.brightsense.com/ o9/28//22oo222 j PH:720- �7KCIY P 7`SBUILDING DEPARTMENT Brig e n se CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Comfort systems The home will be heated using in-floor radiant provided by an air-to-water heatpump. Domestic hot water will be provided by a hybrid heatpump hot water heater(HPWH). A whole-house ventilation system will be used to exhaust stale air from the bathrooms and deliver fresh, filtered air to the living space. Air-source heatpump Space heating for the CHAMPAIGNE RESIDENCE at 309 Oak Lane,Aspen, Colorado will primarily be provided by an air-to-water heatpump,which uses the ambient outside air as a heat source to heat water for the in- floor radiant system. A heatpump generates thermal energy at efficiencies between 200%and 400%at a fraction of the operating cost of straight electric resistance heat. COMPRESSOR OPERATION Cost to • operate Heating: : Usable energy EXPANSION heats the house VALVE CONDENSATION EVAPORATION Cooling: (REJECT HEAT) (ABSORB HEAT) Energy shed outside or under ground Figure 5-Schematic design of a heatpump 5 � HEAT Figure 5 and Figure 6 depict the Functionality 4 REJECTION and energy Flows of a heatpump.Thermal HEAT ABSORPTION energy is absorbed at the evaporator when Heating:energy drawn from the outside or under ground the refrigeration fluid turns to gas,which Cooling:energy removed cools the house provides a cooling effect and absorbs Figure 6-Energy flows of a heatpump thermal energy.The compressor then pumps the refrigeration fluid and the thermal energy it carries to the condenser,where it condenses and sheds the thermal energy plus any process heat. In the example of Figure 6 with the heatpump in heating mode, four units of energy are absorbed, one unit of electrical energy is spent operating the system,and as a result five units of thermal energy are available to heat the building for a heating COP of 5:1 or 500%. During most of the year, air-source heatpumps provide similar efficiencies as geothermal heatpumps without the hefty price tag of the underground well system those units require.Only as it gets colder or hotter the performance and efficiency of air-source heatpumps drop because there is less thermal energy to extract from colder outside air For heating, or it is more difficult to shed heat in hot outdoor conditions when cooling. To ensure uninterrupted comfort during colder days,a supplemental backup boiler will be used. RECEIVED 12 21 01-R 292022 Page5of14 p}2 21 FOEVAIEWIE� �a�t�tBrightSense LLC www.brightsense.com/ 09/28/2022 J PH:720- �8� 4 1s FORCOMCIMPLINICE BUILDING DEPARTMENT Brig ense CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Arctic hydronic air-source heatpump Enhanced vapor injection (EVI) technology and DC inverter compressor Rated down to-15 °F Awarded the ENERGY STAR 2020 Emerging Technology Award Easy to install with no refrigeration technician needed. Each heatpump draws up to 18 Amps and requires a 30 Amp double pole breaker Performance Specification Performance Specification Cooling capacity Ambient DB BTUH/kW 24,225/7.1 220-240VAC Power input 95.0°F(35°C) kW 2.9 Power supply V/PH/Hz 1 PH/60 Hz Current draw LWT/supply A 13.2 Max.current A 18 COP 44.6°F(7°C) W/W 2.4 Breaker size A 30 Cooling capacity Ambient DB BTUH/kW 21,496/6.3 I Refrigerant R410A Power input 82.2°F(28°C) kW 2.0 Water connections Inch 1" Current draw LWT/supply A 9.2 Water flow rate GPM 6.5 COP 53.6°F(12°C) W/W 3.1 Water pressure drop ft head 10 Heating capacity Ambient DB BTUH/kW 28,320/8.3 Dimensions(L x D x H) Inch 45"/18.5"/33" Power input 44.6°F(7°C) kW 2.7 mm 114S/470/883 Current draw LWT/supply A 12.4 Unit weight Lbs./kg 203/92 COP 113°F(45°C) W/W 3.3 Sound level dB(A) 53 Heating capacity Ambient DB BTUH/kW 23,884/7.0 IP Rating IPX4 Power input 19.4°F(-7°C) kW 2.2 Current draw LWT/supply A 10.0 Arctic Heatpumps reserves the right to make changes without notice COP 113°F(45°C) W/W 3.2 due to continuing engineering and technological advances. Heating capacity Ambient DB BTUH/kW 18,776/5.5 Arctic Heatpumps (866)800-8123 Power input -4°F(-20°C) kW 3.2 835 Kapelus Dr. Current draw LWT/Supply A 14.5 West St Paul,MB R4A 5A4 www.arcticheatpumps.com/ COP 113°F(45°C) W/W 1.7 Canada sales@arcticheatpumps.com Figure 7-Arctic heatpump specifications 35,000 I I I I Figure 8 shows the performance Heatpump Balance Point• of one ARCTIC 035 heatpump (blue) in relation to the heating 30.0 00 0 load of the home (orange). 4 J 25,000 Both curves meet at the so-called 1 balance point, in this case at negative 4°F.The heatpump can 20,000 — be expected to heat the home on its own down to this tempe- rature. Only when it gets colder 15,000 —ARCTIC 035Heatpump will supplemental heat be Home Heating load required. Comparing this performance mow chart with the BIN temperature hour chart of Figure 2 indicates S000 _ that the heatpump would provide more than 99% of the heat for the home, and during 0 OutdoorTemperature[°FJ about 450 hours supplemental -20 -10 0 10 20 30 40 50 60 70 Figure 8-Home heating load and heatpump performance curve with balance point heat would be required in a typical year. R i MMVED p}i192022 Page 6 of 14 rAIEV�IIs_ 12 21 2 21-R 2 BrightSense LLC www.brightsense.com/ lF 09/28/2022 J PH:720-7`TJ 4 \I ` ' ip BUILDING DEPARTMENT rivImmense CHAMPAIGNE RESIDENCE 309 OAK LANE,ASPEN,COLORADO Net-zero Energy Building Solutions MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Recommended location for heatpumps In heating dominated climates the preferred location for an air-source heatpump is against a south facing outside wall,where it receives ample sunshine which allows the heatpump to run more efficiently and effectively, requiring less defrosting, and effluent from defrost is allowed to drain away before refreezing. • Due to the specifics of the property,a I south-facing location is not available for ,a'-1o" 8_2• the heatpump.Together with the team we identified a location under the 1 a' ELEC.METER STORAGE H P storage roof as the next best option as O' shown in Figure 9. The heatpump is low noise as I I demonstrated in this video. E A301 -1< LIVING BED 2 Figure 9-Plans showing location of the heatpump EMERGENCY SHUT-OFF Heatpumps must be OR NEARBY BREAKER PANEL mounted on an 18" tall stand of sufficient capacity — -MIN.12"CLEARANCE to allow meltwater from ON ALL SIDES al I M P� defrost to drain away freely. The stand and heatpumps J ARCTIC 035 ll. HEATPUMP should be installed on a ACCESS concrete pad that is isolated PANEL from the home's walls and ,; t mow, foundation to prevent . VIBRATION 4 .4 I.- r ,- ; r transfer of noise and :. ISOLATORS = ~ ` Fr' ,''''" ..A j'INSULATED vibration.Arctic offers a „Ili., � h __'4.5x-. HYDRONIC LINES matchingheatpump stand as K ARCTIC STAND P P _ an accessory. 12"clearance on all sides is recommended. CONCRETE PAD t.- 4.5'x2'x6" ",5 y A Figure 10-Arctic air-to-water heatpump on a stand RECEIVED p}019�20 22 Page 7 of 14 FOEVIEWIE,.` 12 21 2 21-R 2BrightSense LLC www.brightsense.com/ o9/28/zo22 J PH:720-7 TJ 472N1 P BUILDING DEPARTMENT Brig ense CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Hydronic system details All-electric air-source hydronic heatpump for space heating with electric backup heat; domestic hot water by separate stand-alone hybrid heatpump hot water heater (HPWH). •ARCTIC a C '~ X CONTROLLER c - ■ „...„_:: , c T-STATS RADIANT ZONES c AV AV r r OUTDOOR- SENSOR -- HEAT ZONE PANEL ELECTR. BACKUP BOILER iL t I I EXPANSION TANK ll I TANK SENSOR',i1 GIARCTIC- 'll1 CLOSELY SPACED TEES IIIIV ARCTIC HEATPUMP 240VAC PUMP BUFFER TANK OUTDOORS INDOORS Figure 11-Conceptual hydronic system schematic The distribution system consists of a hydraulic separator(buffer tank), circulators, manifolds, and piping to the radiant loops as shown in Figure 11. For a heatpump the distribution system should be designed for lower water temperatures than a typical boiler-based system,which results in higher heatpump efficiencies and operation at lower outdoor temperatures. Both reduce the amount of supplemental energy that is spent should the heatpumps be unable to keep up with the demand on the coldest days. Always Follow pipe sizing guidelines, best industry practice, building code,and manufacturer's instructions. RECEIVED REVIIEVIE 01/19 2022 Page8of141221 2 21-R 2 BrightSense LLC www.brightsense.com/ oo9//2228//22o222 i. 720-RSFIEDN ` `O°11mp BUILDING DEPARTMENT "IrPrwIl e n se CHAMPAIGNE RESIDENCE Net-zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Sequence of operation When the HBX controller's outdoor sensor detects a temperature below the warm weather shut down (WWSD) threshold, it will turn on the heatpump to heat the buffer tank so it's ready for when a room thermostat calls for heat. When the buffer tank reaches the target temperature, the heatpump turns off. When the ambient temperature rises above the WWSD threshold, the system will go into standby. When a room thermostat senses the temperature has dropped below the heating setpoint, the respective zone valve will open and the zone circulator will run to pump warm water through the zone's radiant piping.When the room thermostat is satisfied, the circulator will stop and the zone valve will close. If the controller senses that the supply water temperature to the system is dropping during a call for heat and the heatpump has been running for a certain time, it will activate the backup boiler to provide supplemental heat. Electric backup boiler HydroShark'12-36 a.m Electric boilers in closed loop hydronic systems are HydroShark"7-10 .m„, '.,. a reliable heat source without gas or vent pipes and expensive maintenance. s °°"° r Hydro Shark Recommended make/model - - r„a `I_ Stiebel-Eltron HydroShark 7 (7 kW/25,000 BTUH), or equivalent 5,a LED These units are fast to activate, include an internal thermostat, modulate to adjust to the load, and cause no stand-by losses. Figure 12-Electric backup boiler Heating system In-floor radiant heating system 1 Radiant floor using 01/2"oxygen barrier PEX piping installed 6" on center in concrete slab, light weight concrete, or equivalent,with egttlio or without sleepers.Or use a product like Warmboardl" or EcoWarmTM with 01/2" oxygen barrier PEX piping installed 12"on center Optimized for maximum heatpump supply temperature of 95 °F - I �j I Main radiant distribution manifold with zone valves located in mechanical room; individual zone headers located in close proximity to the actual zone Z`_ `•. Radiant system with ECM circulators Figure 13-Radiant distribution manifold Radiant zoning Zoning allows setting room temperatures according to each zone's purpose. More zones offer more controllability, but also add some cost. C �/ Because warm air rises,at a minimum each floor level should be its own zone with a thermostatRECEl Y ED p}619�2022 Page 9 of 14 FOEVIEWIE 12 21 2 21-R 2BrightSense LLC www.brightsense.com/ o9/28/2022 J PH:720- 8v 4 N FORCCMCOMAJNICE BUILDING DEPARTMENT Brig ense CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Fresh air ventilation system High performance homes require controlled mechanical ventilation and filtration to guarantee a high level of indoor air quality and prevent health and moisture problems. For the CHAMPAIGNE RESIDENCE fresh air will be provided by an Energy Star® rated Broan ERV connected to a whole-house balanced ventilation system that serves the main house. The ERV will continuously remove stale air from the kitchen area and bathrooms,and the same amount of fresh, filtered air is supplied to the living area and bedrooms of the house,while recovering thermal energy between the supply and exhaust air streams. In accordance with 2018 IRC TABLE M 1505.4.4, kitchen require 25 CFM and bathrooms 20 CFM continuously. Bathroom spot exhausts not needed An ERV system that meets the above specification and flow rates eliminates the need for spot or exhaust- only ventilation in bathrooms,which in this case eliminates several envelope penetrations and makes the home significantly tighter. The current ventilation design still relies on a kitchen exhaust hood with a volume of 400 CFM or less venting to the outside. Ventilation rates by room Based on the configuration of the home the following airflow rates are recommended in order to meet both code requirements and ensure a healthy and comfortable indoor climate: Continuous Continuous ERV Supply air locations and volumes CFM ERV Exhaust air locations and volumes CFM S1 Master Bedroom 20 El Bathroom 1 25 S2 Bedroom 1 20 E2 Bathroom 2 25 S3 Bedroom 2 20 E3 Bathroom 3 25 54 Bedroom 3 20 E4 Laundry and Mechanical 25 S5 Living room 20 E5 Hallway 20 S6 Hallway 20 Total 120 Total 120 Figure 14-ERV supply diffuser locations and volumes Figure 15-ERV exhaust diffuser locations and volumes RECEIVED p}0192022 Page 10of14 rpillrENE11) 12 21 2 21-R 2BrightSense LLC www.brightsense.com/ 09/228/2022 2 plE PH:720- -P BUILDING DEPARTMENT B ri g h e n s e CHAMPAIGNE RESIDENCE Net-zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO r ' �I I 1'' ERV FRESH AIR SUPPLY 1 I ' ' I. ` i 't ^��»S4 i I to 54 SOFFIT I0 BEDS I p I j ALONG `� `�� 3.,'��A s._,. 1 i WALL I` fi UV' \D2 °�j �LON1 j VERTICAL RUNS INSIDE ;©y 3 iIi® ! z \ I �I �' BEARING WALL-TBD f I BATH 3 �• 0«E1 \ ® ,/ 1 \�\ ES / b m i '. ♦0 r� 0♦E3\ ,EI I N I ~-1 t� ,, } —_--T- _-1___eJ--1 ii TN_—_ ______ -_._4__— .am 1-K -� .n L__H_, , i E2i2 I© » II , S6 ED, a � � 4� � � � ERV STALE AIR � «® b MBED VENT ABOVE ROOF b »2 ERVii pI ; rr tiX❑YDRYER is N r�- ia OUT SIDE ''ALL ®I'i i r1;-::1 sl it p ® L 4..._ .. I p i �i .r,0y 'I p to Si ! Q . L Q �, L Q N Q e. e. `_42I�ss• ■■m �a ' Is 3Po rsl�ss � I r 9,� 7 I r I - 11I r i- . 0 } OPEN TO BELOW x/ s 1 `° .,,,, I } �, �• 1 p DINING r 1 KIT HOOD VENT 1 s.12 ;; • * § ' 0 ABO`—ROOF 111 r I I 1 m I---4c O T fqv� ii ri -I ©` I---_i I KITCHEN 'a I� _ ,- I 1 .' .ii•• fF •'�•�f i + �-_- iia/rY59NeWiKwstw`�:.�r1r: •.s:� _ r1 I Zl IL _}f I UPPER LEVEL • I I I 'MAIN LEVEL=1,181.02 sq ft I I - - --- ---I =491.09sgft I L---- - -� ERV STALE AIR RETURN/FRESH AIR SUPPLY p*RETURN DIFFUSER DOWN Show all of these 0*RETURN DIFFUSER UP penetrations on your ❑I*RETURN WALL DIFFUSER m*SUPPLY DIFFUSER DOWN roof plan and 00 SUPPLY DIFFUSER UP elevations in your Q0 SUPPLY WALL DIFFUSER architectural set. 0 VERTICAL DUCT RUN Figure 17-Legend RECEIVED p}019�2022 Page 11 of 14 FrIFEWEii12 21 2 21-R 2BrightSense LLC www.brightsense.com/ 28/2022 J PH:720-7 TJr ILO BUILDING DEPARTMENT s I e n se CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Energy Recovery Ventilator make/model:Broan HE- 2 Series ERV200TE ECM, or equivalent m This larger unit has been selected because the technical specifications are valid for sea level only,and at altitude the output is reduced because of lower air density. BReAN. Recommended wall controller and booster switches Adding the Broan VT9W wall controller mounted in the living space allows setting different modes and fan speeds. These functions are not available otherwise. For remote activation of the boost function from the 111 bathrooms and kitchen, up to five Broan VB6OW booster switches can be added per ERV. Each one of these requires a 1-gang electrical wall box or they could be installed right Figure 18-Broan HE-Series ERV250TEECM next to a light switch. Recommended diffusers Figure 19 shows an example of the type of adjustable diffuser recommended for the ventilation system. Adjustability is important in order to be able to dial in the air flow during commissioning. Rectangular registers with fins are not recommended. Recommended make/model: Fantech MGE4(#411106)supply and exhaust diffuser, FEL4 (#45154) 90°elbow with drywall 'Er° flange for wall and ceiling mounted diffusers.The FEL4 makes it possible to use a 04" rigid Figure 19-Fantech MGE4 Figure 20-Fantech FEL4 Elbow sheet metal duct inside a 2x4 wall. (Art.no.:411106)diffuser (Art.no.:45154) Important installation requirements for the ventilation system Duct system to be built from rigid sheet metal only. Flex duct not permitted. Duct sizes in the layout are minimums.Oval pipes are permitted as long as the effective cross section is equal or greater than the specified size. All seams and joints to be sealed with mastic and/or tape. Duct runs to and from the outside must be insulated with R6 or better. No ducts permitted in exterior walls or unconditioned space unless buried deep in fluffy insulation. Supply termination must be a minimum 6' of stretched-string distance from the exhaust termination and 10' from any other exhaust vent, unless on a different plane of the building. Terminations to include a rodent and insect screen with <= 1/4 inch mesh and a gravity backd raft damper on the exhaust. • During construction ducts must be sealed to prevent contamination. • DO NOT RUN the ERV before the home has been deep cleaned. • The ventilation system must be balanced according to the design with measurements documented to ensure the specified volumes are met. Installation must meet code and manufacturer's installation instructions. P}�19 2022 Page12of14 109/28/2022 t1t)tiV�r1221 2 21-R 2 BrightSense LLC www.brightsense.com/ Ju 720-RSFSEDN ` imp `�°1 BUILDING DEPARTMENT Brig e n se CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION Domestic hot water system Domestic hot water supply for the CHAMPAIGNE RESIDENCE was designed for low-flow shower heads with no more than 2 shower heads per shower. The home and ADU will be served by one 80-gallon hybrid heatpump hot water heater located in the mech room. Make/model: Rheem MODEL#PROPH80, or equivalent First hour delivery of 94 gallons at a COP of 3.5 or higher. Unit must be equipped with an adequately sized thermal expansion vessel and installed `a according to manufacturer's instructions.All hot water lines must be insulated. Figure 21—Rheem It is recommended to install a recirculation line to the kitchen to reduce wait time and heatpump hot water heater waste. RECEIVED p}0192022 Page 13of14 12 21 2 21-R 2BrightSense LLC www.brightsense.com/ 1061/11EWIE 09/28/2022 J PH:720- 0v 4E FORCOUtCOMPLIANCE BUILDING DEPARTMENT Brig ense CHAMPAIGNE RESIDENCE Net zero Energy Building Solutions 309 OAK LANE,ASPEN,COLORADO MECHANICAL SYSTEMS DESIGNAND SPECIFICATION List of major mechanical equipment and components Figure 22 lists the major equipment and components. Many additional parts will be needed to ensure safety, code compliance,and functionality.These parts should be selected by the installer based on their preference and possible affiliation with certain manufacturers or local distributors. Pumps and piping must be selected and sized based on local conditions following industry best practice. Item QTY Description Make/Model or specification if available Location 1 1 Air-to-water heatpump Arctic 035ZA/BE,no substitution Utility room 2 1 Heatpump stand Arctic Heatpump stand,no substitution 3 1 Heatpump buffer tank Arctic Heat/Chill Tank 40 Gallon,no substitution Utility room 4 1 Heatpump controller HBX ECO-550,no substitution Utility room Propylene glycol 5 Antifreeze +11 °F freeze/-20°F burst protection 6 1 Electric backup boiler Stiebel-Eltron HydroShark 7,or equivalent Utility room 7 1 Hybrid heatpump hot Rheem PROPH80,or equivalent Utility room water heater 8 1 Energy recovery Broan HE-Series ERV200TE ECM,or equivalent Utility room ventilator Figure 22—List of major mechanical equipment and components Respe tfully submitted Hans � .. r im Preiss Principal I BrightSense LLC AU schematics are conceptual in nature and not to scale. It is important to note that the performance of the systems described herein and their energy consa ��� depend on the actual weather conditions as well as occupant behavior,just like a car's gas mileag f depending on the road conditions and a person's driving style. 121}2 21 p0 -R 2 19 2022 Page 14of14 a /11E _ BrightSense LLC www.brightsense.com/ �M09/28/2022 J PH:720-7`TJr'LN FORCIAkLUAKINICE ,�mP BUILDING DEPARTMENT