Mechanical Systems · DIRECT REPLACEMENT OF ONE 10-TON, TWO 7.5-TON, AND ONE 5-TON AIR-COOLED ROOFTOP PACKAGED UNITS ON EXISTING ROOF CURBS. RECONNECT TO EXISTING SUPPLY/RETURN DUCT RISERS AND GAS LINES BY OTHERS. NEW CONDENSATE DRAINS TO ROOF DRAINS.
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