Brightwater Outfitters

mwcms on November 20, 2024

Location: Gypsum, CO

Project Description:

The Outfitter’s Post is located at the heart of the Brightwater Club Village and is an Amenity Building for the members and guests. Amenities include a Living Room, Post Office, Grocery Store, Fitness Center and Golf Cart Storage.

Rader Engineering provided full Mechanical, Electrical and Plumbing Engineering design services for the project. The detailed design was fully coordinated with the other project consultants, including the Architect, Structural Engineer, Civil Engineer and Kitchen Consultant.

The MEP systems designed for the building include full air conditioning throughout via fan coils and a central chiller, radiant floor heating, snowmelting and a high efficiency boiler plant. Due to the hydrogen off-gassing from the batteries of approximately 70 golf carts, an exhaust and supply ventilation system was designed with sophisticated controls and sensors to ensure levels were maintained below the lower explosion levels.

Highlights from the plumbing system include the long linear trench drains in the cart area to collect water and debris from the carts and from the washing area. Sediment basins and a sand oil separator ensure the drainage system is kept clean and operable. A lift
station was required for all lower level plumbing fixtures due to the invert elevation of the main sewer line.

Brightwater Outfitters Image
Brightwater Outfitters Image

Clubhouse at Bridger’s Cache

mwcms on November 20, 2024

Location: Grand County, CO

Project Description:

This ski-in/ ski-out timber structure clubhouse is situated near the Winter Park and Mary Jane ski areas and serves twenty home sites. Amenities include a large atrium, ski locker rooms, exercise and shower rooms and a two-lane bowling alley.

The mechanical systems designed for this project include two ventilation systems, one serving the upper level and one serving the lower level. The split design allows for energy savings as ventilation for unoccupied floors can be shut down when not needed.

Each ventilation system consists of a 100% outside air hydronic make-up air fan coil unit and a similar sized exhaust fan. Exhaust is pulled from the Men’s and Women’s locker rooms, ski locker rooms, bowling alley and near the steam shower room. The make-up air is tempered from outside conditions to 70 degrees using a Tekmar variable speed pumping control which varies the pump speed precisely to achieve a constant leaving air temperature to the rooms. Freeze stats are provided at each coil to prevent coil freezing and bursting in the case of mechanical pump failure.

The boilers used for space heating were high efficiency condensing boilers, which also served radiant floor heating.

Clubhouse Bridger Image
Clubhouse Bridger Image
Clubhouse Bridger Image

American National Bank — Carbondale, CO

mwcms on November 20, 2024

Location: Carbondale, CO

Project Description:

Energy efficiency was a primary goal for the developer of this bank. Rader Engineering met this goal by providing full Mechanical and Electrical engineering services that incorporated energy efficient systems into the MEP design. Highlights include a 10 KW solar PV system, an instantaneous gas hot water heater, Roof Top Units that used environmentally sound refrigerant, economizer cooling for free cooling utilizing outdoor air, VAV variable air volume zoning systems and an ERV energy recovery ventila tor for bath exhaust and fresh air to the offices.

American National Bank Image
American National Bank Image
American National Bank Image
American National Bank Image

Cascade Residences — Vail, CO

mwcms on November 20, 2024

Location: Vail, CO

Project Description:

This condominium / hotel project consists of 11 condo units, commercial space, restaurant, lobby, corridors and an underground parking garage. Each unit will have multiple zones of in floor radiant heating and forced air cooling, as well as humidification, fresh air, snowmelt, kitchen exhaust and bath exhaust. The building will have a central high efficiency boiler plant with two boilers, a water cooled chiller and a cooling tower to take advantage of free cooling when outdoor air temperatures permit. Boiler return water is utilized for domestic hot water pre-heating in order to further increase the efficiency of the boiler plant. Rader Engineering was responsible for the full MEP Engineering Design.

Cascade Image
Cascade Image

Dancing Bear Lodge — Aspen, CO

mwcms on November 20, 2024

Location: Aspen, CO

Project Description:

This ultra high-end condo project in downtown Aspen required full Mechanical, Electrical & Plumbing Engineering services. The building is comprised of 9 residential units, a commercial kitchen with restaurant and bar, private parking garage, game room, gym, board room, custom chilled wine cabinets, theater, locker room and a rooftop lounge with a bar and multiple spas. The MEP systems for the building consist of a central air handling unit with VAV boxes for common spaces, fan coil units in the residences, a central high efficiency condensing boiler plant, a central air-cooled chiller plant and approximately 10,000 SF of exterior snowmelt.  Other systems include humidification for improved comfort, parking garage ventilation, exhaust systems, heat rejection systems, elevator hoist way venting, sand/oil separator, grease interceptor and multiple lift stations. The mechanical control system consists of a custom whole building integrated DDC system.

Dancing Bear Image
Dancing Bear Image
Dancing Bear Image
Dancing Bear Image

Pines Lodge — Beaver Creek, CO

mwcms on November 20, 2024

Location: Beaver Creek, CO

Project Description:

This hotel / condominium building consists of 60 hotel rooms, 12 condominiums, a restaurant, kitchen, bar, exercise room, conference room, offices and lobby area. The goal of this project was to retrofit the entire building with air conditioning. Rader Engineering was able to meet this goal by using a Mitsubishi CityMulti Variable Refrigerant Volume system. The system is also used as the first stage of heat, causing the older, less efficient heating system to run only during very cold outdoor temperatures. The installation of the mechanical system for everything except for the condominiums was completed in December of 2008 and consisted of 79 indoor fan coils and 6 outdoor heat pumps. Installation for the condominium units has not been started but is planned for the future.

Pines Lodge Image

Buffalo Ridge — Avon, CO

mwcms on November 20, 2024

Location: Avon, CO

Project Description:

This project consists of 15 buildings and 244 units total. Units are Studios, 1-bedroom, 2-bedroom and 3-bedroom units. The project is a HUD project (U.S. Department of Housing and Urban Development) and so the budget was extremely tight and meeting this budget was of great importance. The mechanical system design was tailored to meet this budget, meet code as well as the needs of the occupants. Each building has a two-boiler central heating plant which serves two domestic hot water heaters, as well as hydronic baseboard within the units and common areas. Each boiler consists of 2 heating stages thus there are four stages of heat per building, contributing to better levels of energy efficiency. Because all the buildings face south, the project team elected to provide through-the-wall air conditioners for summer comfort. Other systems include corridor ventilation, bath exhaust and dryer exhaust.

Buffalo Ridge Image
Buffalo Ridge Image
Buffalo Ridge Image

Claridge on Turtle Creek

mwcms on November 20, 2024

Location: Dallas, TX

Project Description:

Rader Engineering provided mechanical design services for this high end condominium project located in Dallas Texas. The mechanical systems consisted of a total of 8 water-to-air heat pumps (totaling 31 tons), which were connected to the building’s existing boiler/ tower loop. The units were all located in mechanical closets remote from the rooms that they served, and all ductwork was lined with 1-1/2” of internal duct insulation, to minimize any acoustical transmission issues associated with the heat pumps. All supply and return air was via slot diffusers integrated into the elaborate ceilings. Steam humidification units were incorporated into the HVAC system to meet the Owner’s humidity needs. The entire system was controlled by a Direct Digital Control (DDC) system integrated into the Home Automation System.

Clardige Turtle Creek Image
Clardige Turtle Creek Image

High Aspen Ranch Residence

mwcms on November 20, 2024

Location: Garfield County, CO

Project Description:

Rader Engineering provided mechanical engineering services for this high-end custom home in High Aspen Ranch. The project consisted of two phases (two buildings) that were connected by a connector bridge. The home is heated and cooled by a ground source heat pump (GSHP) system connected to 40 vertical boreholes, each 250’ deep. In total, there are four 10 ton water-to-water GSHPs in the project, totaling 40 tons. Special attention was paid to properly attenuating sound generated by the mechanical systems, as this was a high priority for the Owners. Sound mitigating strategies include vibration isolators for fans, piping and ductwork as well as Variable Frequency Drives

(VFDs) for optimal fan coil control. The home is equipped with a sophisticated DDC control system. Multiple air-to-air heat exchangers are utilized to provide efficient and balanced fresh air exchange in the home. Both phases include a whole house exhaust fan used for general ventilation and for free nighttime cooling. Special exhaust and ventilation systems were designed for the woodworking shop, fabrication and finishing rooms. All of the garages are provided with exhaust ventilation for improved indoor air quality and health. Domestic hot water is generated by GSHP preheat ing as well as by high efficiency gas-fired condensing boilers.

High Aspen Ranch Image
High Aspen Ranch Image
High Aspen Ranch Image

Bridge House

mwcms on October 22, 2024

Location: Aspen, CO

Description

This luxurious 12,000 square foot home in Aspen, Colorado features radiant floor heating and forced-air cooling throughout. The mechanical system features a high efficiency boiler system that provides heat for radiant floors, domestic hot water, 5,400 square feet of snow melt, and make-up air for the home’s multiple open-hearth fireplaces and kitchen exhaust system.

Bridge House
Bridge House
Bridge House
Bridge House