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AI Drawing Review Report

Riverside Office Building

Mechanical / HVACStandard ReviewM-Series_Mech_Drawings.pdfJune 12, 2025

2 CRITICAL

5 MAJOR

4 MINOR

3 ADVISORY

14 total

AI Summary

Review identified 14 comments across 4 mechanical sheets including 2 critical life-safety deficiencies. The missing fire damper at Grid C-4 and undocumented combustion air provisions are permit-blocking issues requiring immediate attention. OA separation at AHU-1 requires redesign or wind study documentation. Several energy code compliance items need resolution before submittal.

Codes reviewed

IMC 2024, ASHRAE 62.1-2022, ASHRAE 90.1-2022, NFPA 54

Firm standards applied (3)

36" minimum HVAC service clearanceCondensate drain pan required on all AHUsLabel all fire dampers on reflected ceiling plans

Jurisdiction amendments applied

Denver 2024 Amendments

Sheets reviewed (4)

M-101M-201M-501M-601

PE review progress

10 / 14 reviewed

7 accepted 1 edited 2 rejected○ 4 unreviewed

CRITICALFire & Life SafetySheet: M-201

Confidence: HIGH

Accepted

Duct penetration through rated assembly lacks fire damper

IMC 2024 §607.5.1

CRITICALVentilationSheet: M-201

Confidence: HIGH

Accepted

Combustion air provisions not shown for boiler room

IMC 2024 §304.1

MAJORVentilationSheet: M-101

Confidence: HIGH

Edited

OA intake separation below 8′ minimum from exhaust

ASHRAE 62.1-2022 §5.7

MAJOREnergy ComplianceSheet: M-101

Confidence: HIGH

Accepted

HVAC efficiency ratings not shown on equipment schedules

ASHRAE 90.1-2022 §6.4.1, Table 6.8.1-1

MAJORDuctworkSheet: M-501

Confidence: HIGH

Accepted

Duct sealing class not specified

ASHRAE 90.1-2022 §6.4.4.2

MAJOREnergy ComplianceSheet: M-101Jurisdiction

Confidence: HIGH

Economizer requirement not addressed for AHU-1 per local amendment

Denver Amendment to ASHRAE 90.1-2022 §6.5.1

MAJORVentilationSheet: M-201

Confidence: MEDIUM

Conference room OA rates not documented

ASHRAE 62.1-2022 §6.2.2.1, Table 6.2.2.1

MINORDocumentationSheet: M-601

Confidence: MEDIUM

Accepted

Equipment schedule missing operating weight for AHU-2

IMC 2024 §106.3.1

MINORDuctworkSheet: M-501

Confidence: HIGH

Accepted

Fire damper access doors not detailed

IMC 2024 §607.5.5

MINOREquipmentSheet: M-601

Confidence: MEDIUM

Refrigerant type and charge not listed in schedule

IMC 2024 §312.1

MINOREquipmentSheet: M-101Firm Standard

Confidence: MEDIUM

Rejected

Equipment service clearances below firm minimum

Firm Std: 36" minimum HVAC service clearance

ADVISORYEnergy EfficiencySheet: M-501

Confidence: MEDIUM

Rejected

VFD not specified on AHU-2 — recommend for energy compliance

ASHRAE 90.1-2022 §6.5.3

ADVISORYControlsSheet: M-501

Confidence: LOW

Supply air temperature reset not documented

ASHRAE 90.1-2022 §6.5.3.3

ADVISORYInsulationSheet: M-501

Confidence: HIGH

Accepted

Duct insulation R-values not specified

ASHRAE 90.1-2022 §6.4.4.1, Table 6.8.2-1

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