Extend existing ductwork on the first and second floors to heat and provide air conditioning for a new addition, 300 SF. Replace the first-floor 5-ton a/r handler and condenser.
Procedure Room 406, fourth floor; install 2-ton ductless split system condenser to be located on roof; add 1 supply and return grill off existing system (as per Mechanical Plan M1.0 and M2.0).
12 apartments and 2 lobbies: hydro-air systems with central air conditioning; bathroom dryer and kitchen exhaust; all condensers on the roof; boiler and boiler piping done by plumber.
First floor: 1 80000 Btu gas furnace with 2 1/2-ton air conditioning system, 13 SEER. Second and third floors: 92000 Btu gas furnace with 3-ton air conditioning system, 13 SEER, with all NEC ductwork, grills, and refrigerant piping. Supply and install dryer, bathroom, and kitchen exhaust ductwork.
Replace existing boiler with new HTP 199,000 BTU high-efficiency boiler, with all necessary piping, controls, and flue.
Mechanical · 2017
Supply and install dryer and bathroom exhaust ductwork; supply and install new kitchen exhaust duct; relocate existing supply outlets on the first floor as needed; supply and install new ductwork and grills for the second-floor master bedroom. All existing HVAC equipment to remain.
Supply and install 4 hydro-air systems with 13 SEER condensers; all necessary ductwork, registers, grills, and refrigerant piping. Supply and install bathroom, dryer, and kitchen exhaust ductwork.
Unit C1: Supply and install 2 hydro-air systems (heat only). Unit C2: Supply and install 3 hydro-air/heating-only systems (heat only). Unit C3: Supply and install 3 hydro-air systems (heat only). Supply and install all bathroom, dryer, and kitchen exhaust ductwork. Note: Boiler and boiler piping done by plumbing. Specs in file BB.
Supply and install 3 80% gas-fired furnaces with matching 3 13 SEER condensing units; all necessary sheet metal ductwork and grilles; all necessary refrigerant piping; bathroom, dryer, and kitchen exhaust ducts; and 1 fan in can for the mechanical room in the basement.
Units 1 and 4 end units (typical): supply and install 1 80000 Btu gas furnace with 3-ton, 16 SEER air conditioning. Units 2 and 3 middle units (typical): supply and install 60000 Btu gas furnace with 2 1/2-ton, 16 SEER air conditioning. Supply and install all NEC sheet metal ductwork, refrigerant piping, and grills; bath, dryer, and kitchen exhaust ductwork. Prints and specs in file BB.
Unit A and B are typical; supply and install 1 80000 btu furnace with 3-ton air conditioning for first floor.; supply and install 1 60000 btu furnace with 2 1/2-ton air conditioning for second floor.; supply and install bath exhaust., dryer exhaust. And kitchen exhaust.
Supply and install all necessary sheet metal ductwork runouts, flex runouts, registers and grilles, and a thermostat to accommodate the new space layout. Supply and install 2 bathroom exhaust fans and ductwork. Note: RTUs and ductwork are existing.
