Berea College Deep Green Residence Hall

As a LEED Platinum Certified Project, Berea College has raised the bar for sustainable design and construction. The heart of the heating and cooling system is a 6-pipe modular chiller paired with a pump skid. The chiller provides hot water and chilled water to the fan coil units throughout the building. It has the ability to heat and cool simultaneously, and is tied to the geothermal loop to reject/absorb heat when necessary. The pump skid has VFD-driven pumps on it serving the three separate loops (geothermal, hot, and chilled water). Innerspace’s Automated Logic Controls System closely tracks building demand and only brings on cooling/heating as required. With the chiller having multiple modules, it is able to achieve efficient part load operation. Two energy recovery units provide fresh air to the building and use energy recovery wheels to do the pre-conditioning. Airflow measuring stations on each unit are used to help track supply and exhaust air through the units. Each fans’ speed is controlled by a VFD and only run as much as needed to meet the demand. As a further energy-saving measure, the engineer put the domestic hot water heating system on the geothermal loop. Domestic hot water heating is handled using geothermal domestic hot water heat pumps and large well insulated storage tanks. These units are 3-4 times more efficient when compared to conventional gas or electric hot water heaters.

Project Team:

Architect: Hastings+Chivetta

Engineer: Hastings+Chivetta

Contractor: Davis & Plomin Mechanical

GC / CM: Messer Construction

Equipment:

Canariis (1) Pump Skid w/ ArctiChill Modular Chiller Package

Colmac (2) Domestice Water-to-Water Heat Pumps

McQuay (2) Modular Indoor Energy Recovery Units

McQuay (2) Water Source Heat Pumps

McQuay (6) Vertical Fan Coils

McQuay (106) Horizontal 4-pipe Fan Coils