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HVAC SYSTEM ARCHITECTURE 3-FLOOR COMMERCIAL · ASHRAE 90.1 (2019) COMPLIANT CONTROLS TIER — BAS / DDC NETWORK BAS SERVER Building Automation System BACnet/IP · ANSI/ASHRAE 135 📊 EMS Energy Mgmt System ASHRAE 90.1 §10.4 🌤 WEATHER STN Outdoor T/RH Sensor ASHRAE 90.1 §6.4.3 BACnet/IP SUPERVISORY NETWORK CHW SUPPLY/RETURN HHW SUPPLY/RETURN FLOOR 3 EL. 24'-0" 🌀 AHU-3 Air Handler Fl.3 ASHRAE 90.1 §6.5 ⚡ VFD-3 Fan Drive §6.5.3.1 🎛 DDC-3 Floor Controller BACnet MS/TP ◼ DAMPER F/S Damper x4 IMC §607.5 🌡 THRMST Zone Sensor x4 ASHRAE §6.4.3 🔲 VAV N North Zone · §6.5.2 🔲 VAV S South Zone · §6.5.2 🔲 VAV E East Zone · §6.5.2 🔲 VAV W West Zone · §6.5.2 💨 DIFF Supply x8 ↩ RET Return x4 FLOOR 2 EL. 16'-0" 🌀 AHU-2 Air Handler Fl.2 ASHRAE 90.1 §6.5 ⚡ VFD-2 Fan Drive §6.5.3.1 🎛 DDC-2 Floor Controller BACnet MS/TP ◼ DAMPER F/S Damper x4 IMC §607.5 🌡 THRMST Zone Sensor x4 ASHRAE §6.4.3 🔲 VAV N North Zone 🔲 VAV S South Zone 🔲 VAV E East Zone 🔲 VAV W West Zone 💨 DIFF Supply x8 ↩ RET Return x4 FLOOR 1 Grade Level 🌀 AHU-1 Air Handler Fl.1 ASHRAE 90.1 §6.5 ⚡ VFD-1 Fan Drive §6.5.3.1 🎛 DDC-1 Floor Controller BACnet MS/TP ◼ DAMPER F/S Damper x4 IMC §607.5 🌡 THRMST Zone Sensor x4 ASHRAE §6.4.3 🔲 VAV N North Zone 🔲 VAV S South Zone 🔲 VAV E East Zone 🔲 VAV W West Zone 💨 DIFF Supply x8 ↩ RET Return x4 CENTRAL PLANT — MECHANICAL ROOM ❄ CHILLER 1 Water-Cooled ASHRAE 90.1 T6.8.1 ❄ CHILLER 2 Standby N+1 Redundancy ⚙ CHW PUMP 1 Primary Loop ⚙ CHW PUMP 2 Standby 🌊 CLG TOWER Induced Draft ASHRAE 90.1 §6.5.5 🔥 BOILER 1 Hot Water 180°F ASHRAE T6.8.1B 🔥 BOILER 2 Standby N+1 Redundancy ⚙ HHW PUMP 1 Primary Loop ⚙ HHW PUMP 2 Standby 💧 EXP. TANK CHW + HHW ASME Section VIII LEGEND Air Handling (AHU) Distribution (VAV) Chilled Water Hot Water Controls / BAS Sensors / Meters Condenser Water Mechanical BACnet Network CHW Piping HHW Piping Supply Air ASHRAE 90.1 (2019) · 3-Floor Commercial Building · Engineers Universe