| S.No. | Field / Checkpoint | Reference | Status |
|---|---|---|---|
| A. PRE-COMMISSIONING | |||
| A1 | AHU manufacturer + model + capacity + serial no. Acceptance: Match purchase order | Per OEM spec | OK NC NA |
| A2 | Installation complete — coil, fan, filters, dampers, drains Acceptance: Visual check | Per drawing | OK NC NA |
| A3 | Electrical connections + safety interlocks tested Acceptance: IR ≥ 1 MΩ | Megger test | OK NC NA |
| A4 | Refrigerant charge (if DX) + chilled water flow (if CHW) Acceptance: Verified | Per OEM | OK NC NA |
| B. FAN + AIRFLOW | |||
| B1 | Fan rotation direction check Acceptance: Correct rotation | Per OEM arrow | OK NC NA |
| B2 | Belt tension + alignment Acceptance: Properly set | Per OEM | OK NC NA |
| B3 | Airflow measurement (anemometer / pitot tube) at supply diffusers Acceptance: Per design | Within ± 10% of design CFM | OK NC NA |
| B4 | Static pressure at supply + return Acceptance: Within tolerance | Per duct design | OK NC NA |
| C. COIL + COIL PERFORMANCE | |||
| C1 | Cooling capacity test — DB/WB entering vs leaving air Acceptance: Computed | Within ± 10% of design TR | OK NC NA |
| C2 | Heating capacity (if hot water / electric) Acceptance: Verified | Per design | OK NC NA |
| C3 | Condensate drain — flow + slope + trap Acceptance: Drains correctly | 1:100 minimum slope | OK NC NA |