1213 Walnut

Philadelphia, PA
Fire Protection
LEED Silver
300,000 SF

Located between Rittenouse Square and Washington Square in Midtown Village, this 26-story luxury apartment building includes 322 apartments and features a wealth of amenities for its tenants including a two-story lobby, community outdoor spaces, a fitness center, a dog run and community terrace.

Bala’s MEP/FP group designed everything for high-efficiency.  The building includes a high-efficiency vertically stacked water source heat pumps in each unit and condensing boilers.  Plumbing and fire protection features include fire pumps, low flow fixtures for LEED and re-circulation domestic water systems with re-heaters to maintain design temperatures at all fixtures.  The building has substations at the top and bottom, sharing loads throughout, in order to reduce the electrical cost.  There are high-efficiency lighting designs and lighting controls to meet energy savings for LEED. 

Bala’s independent commissioning group field tested the vertically stacked water source heat pumps in the residential units, the building condenser water loop system with a two-cell cooling tower loop on the roof and a boiler system to input heat into the condenser water loop.  A 90 ton make-up air unit was also tested.