AHU-2 · ahu
AHU-2
Main air handler #2 — open for each component (coils, fan, motor, heating, dampers, filters, drive).
Unit summary
- Tag
- AHU-2
- Role
- Main supply air handler
- Twin
- AHU-1
- Design supply CFM
- 55,000 (3 × 18,334 coil face CFM)
- Fan control
- VFD (BMS fan %)
- Typical run
- ~98% of full speed
- Cooling
- 3 × York CDW chilled-water coils (~301 tons bank)
- Heating
- HHW coil from plant steam HX
- Drive belts
- 4 × 5VX1030
Components (tree)
- Cooling coils
- 3 identical York CDW — see each coil under this unit
- HHW heating coil
- Heating coil node
- Supply fan
- Blower selection / performance
- Supply motor
- Nameplate (HP, FLA) — photo needed
- Drive / belts
- 4 × 5VX1030
- Filters
- Rack / MERV — to complete
- OA damper
- Outside-air damper
- RA damper
- Return-air damper
- Humidification
- Cemline plant steam (winter)
Notes
- Expand this node in the tree to open each component.
- Coil bank for both AHUs (~602 tons) exceeds 500-ton chiller plant — coils carry margin.