# Detail or Installation Mismatch in Division 25 Integrated Automation submittals

> Source: https://deviationcheck.com/divisions/25-integrated-automation/detail-installation-mismatch/

The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require.

## What to look for in Division 25 Integrated Automation

- **Wiring topology** different from spec (daisy-chain vs. home-run for MS/TP trunks)
- **Network segment length** exceeding BACnet MS/TP or LonWorks cable distance limits
- **Controller panel layout** differing from approved shop drawings
- **Cable type** mismatch (shielded twisted pair vs. unshielded, Cat 5e vs. Cat 6 for IP networks)
- **IP addressing scheme** or subnet allocation not matching the network design
- **Power supply sizing** for controllers and field devices differs from load calculations
- **Sensor placement locations** not matching the mechanical drawings or sequences of operation
- **Integration wiring** (hardwired interlock vs. software integration) differs from the specified method
- **Surge protection** or network isolation devices omitted at building entry points
- **End-of-line termination** missing or incorrect on MS/TP or LonWorks segments
- **Outdoor sensor enclosure rating** lower than specified NEMA rating for the location

## Severity

Default grade: Fix and Resubmit. Escalates to Blocker when the difference affects a fire-rated, seismic, or structural assembly.