23 00 00 HVAC: Common Contradictions and RFI Guide
Mechanical schedules conflict with spec sections on equipment capacity, duct sizing, and insulation type, often across multiple drawing sheets and spec divisions.
Most HVAC contradictions trace to the same root: the specification and the drawings are produced by different people at different stages, and never fully reconciled before the set goes out. By the time the conflict is found in the field, it is an RFI, a delay, or a change order.
Lintel cross-references section 23 00 00 against your full drawing set, schedules, and the rest of the project manual, flagging every disagreement with a citation to the exact page so it is resolved in review.
Common contradiction types
Equipment schedule vs. spec capacity
A frequent hvac conflict. Lintel reconciles the drawings against the spec to surface it with a page-level citation, so it is caught in review rather than at rough-in.
Duct insulation type conflicts
A frequent hvac conflict. Lintel reconciles the drawings against the spec to surface it with a page-level citation, so it is caught in review rather than at rough-in.
Thermostat control spec vs. sequence of operations
A frequent hvac conflict. Lintel reconciles the drawings against the spec to surface it with a page-level citation, so it is caught in review rather than at rough-in.
Frequent RFIs
- Unit capacity not matching schedule
- Duct lining spec conflicts with energy code
- Control sequence missing from equipment spec