Texas Industrial / Manufacturing TI: 6 Issues Found

Summary: 2 indexed pages | 0 match | 2 minor mismatch | 0 mismatch | 0 missing Minor Mismatch (2): FA 0.0: Expected: COVER SHEET, LEGEND, GENERAL NOTES, EQUIPMENT LIST (FA 0.0) | Actual: FIRE ALARM PLAN (FA0.0)(p1) | Reason: Sheet number matches closely and FA 0.0 conventionally corresponds to a cover/notes sheet, but the parsed title...

Why it matters:

Suggested next step:

RFI draft: 📄 FA0.0 Schedule Text: DRAWING INDEX — page 1

Summary: The fire alarm riser diagram on drawing FA 1.0 shows a battery note '2- 12VDC 7AH BATT' at the bottom-left of the diagram. However, this note is associated with the FACP (FP1) based on its leader line direction and co-located annotations ('DEDICATED 120 VAC' and 'CELL COMUNICATOR', which are FACP-specific features). The PS1 (SK-PS6) NAC power...

Why it matters: NFPA 72 requires the secondary power supply (batteries) for each power supply to support the fire alarm system for 24 hours of standby followed by 5 minutes of alarm. The PS1 battery calculation shows a total standby current of 0.23A and a total alarm current of 2.34A, yielding a derated requirement of 7.14 AH, with a final recommendation of...

Suggested next step: Please clarify and coordinate the battery specification for the PS1 (SK-PS6) NAC power supply on the fire alarm riser diagram. The current riser diagram does not appear to show a battery specification for PS1 (the '2- 12VDC 7AH BATT' note appears to be associated with the FACP). The PS1 battery calculation requires a minimum of 7.14 AH and...

RFI draft: Please clarify and coordinate the battery specification for the PS1 (SK-PS6) NAC power supply on the fire alarm riser diagram. The current riser diagram does not appear to show a battery specification for PS1 (the '2- 12VDC 7AH BATT' note appears to be associated with the FACP). The PS1 battery...

Summary: The Device Legend specifies 7 horn/strobes (Honeywell PC2WL, described as 'CLG MOUNT') and 17 strobes (Honeywell SCWL, described as 'CLG MOUNT') — totaling 24 ceiling-mount notification appliances. However, Installation Note 14 explicitly requires 'AUDIO/VISUAL AND VISUAL APPLIANCES SHALL BE WALL MOUNTED' with the entire lens between 80' and...

Why it matters: This conflict affects 24 of the 26 total notification appliances on the project. During construction, the installer cannot reconcile the ceiling-mount device specifications with the wall-mount installation requirements and will be forced to stop work and request clarification. Resolution will require either resubmission of plans with corrected...

Suggested next step: Clarify whether notification appliances are intended to be ceiling-mounted or wall-mounted. If wall-mounted at 80'-96' AFF per Notes 5 and 14 and the installation detail, revise the Device Legend to specify wall-mount model equivalents (e.g., Honeywell P2WL and SWL or similar). If ceiling-mounted, revise Notes 5 and 14, and the installation...

RFI draft: Clarify whether notification appliances are intended to be ceiling-mounted or wall-mounted. If wall-mounted at 80'-96' AFF per Notes 5 and 14 and the installation detail, revise the Device Legend to specify wall-mount model equivalents (e.g., Honeywell P2WL and SWL or similar). If...

Summary: The drawing sheet FA 1.0 contains the Ground Level Fire Alarm Plan at 1/8' = 1'-0' scale with room labels, device locations, and circuit routing throughout the building. However, no north arrow or point of compass indicator is shown anywhere on the sheet. The global plan view and all nine plan tiles were examined, and none contain a north arrow...

Why it matters: The absence of a north arrow on the fire alarm plan sheet will likely result in the drawings being returned for correction during AHJ plan review, causing permitting delays. During construction, field personnel rely on a north arrow to orient the plan to the physical building and correctly locate fire alarm devices, circuits, and equipment....

Suggested next step: Request the fire alarm designer add a point of compass (north arrow) to sheet FA 1.0 as required by NFPA 72-2019 Sections 7.2.1(3)(a) and 7.4.5(2). Confirm the orientation is consistent with architectural reference drawings.

RFI draft: Request the fire alarm designer add a point of compass (north arrow) to sheet FA 1.0 as required by NFPA 72-2019 Sections 7.2.1(3)(a) and 7.4.5(2). Confirm the orientation is consistent with architectural reference drawings.

Summary: The Fire Alarm Wire Legend on the drawing specifies the NAC (notification) circuit wire type as FPLP (Fire Power Limited Plenum), while both the PS1 N1 and PS1 N2 voltage drop calculations specify the circuit wiring as FPLR (Fire Power Limited Riser). FPLP and FPLR are distinct cable ratings with different fire performance characteristics and...

Why it matters: FPLP cable is tested to UL 910 for plenum-rated environments, while FPLR cable is tested to UL 1666 for riser applications only. If the NAC wiring runs through plenum spaces (e.g., above suspended ceilings used as air-return plenums), FPLR-rated cable would not comply with NEC requirements. This discrepancy between design documents could lead...

Suggested next step: Please clarify the correct wire type for the PS1 NAC notification circuits. The Fire Alarm Wire Legend on sheet FA 1.0 specifies FPLP while the PS1 voltage drop calculations specify FPLR. Please confirm which wire type is required and update the conflicting document to ensure consistency.

RFI draft: Please clarify the correct wire type for the PS1 NAC notification circuits. The Fire Alarm Wire Legend on sheet FA 1.0 specifies FPLP while the PS1 voltage drop calculations specify FPLR. Please confirm which wire type is required and update the conflicting document to ensure consistency.

Summary: Installation Note 4 on page 1 states manual pull stations 'SHALL BE MOUNTED AT A HEIGHT OF 48' AFF.' However, the NFPA 72 and ADA Device Installation Requirements detail on page 1 dimensions the manual pull station at 3'-8' (44') above finished floor, with a noted acceptable range of '3'-6' MINIMUM, 4'-0' MAXIMUM.' The note specifies 48'...

Why it matters: An installer following Note 4 would mount at 48' AFF, while one following the detail would mount at 44' AFF. Although both values fall within the code-acceptable range, the inconsistency between the prescriptive note and the detail typical creates ambiguity that could result in field disputes or re-work if the inspector references one document...

Suggested next step: Clarify the intended mounting height for manual pull stations and update Note 4 and the installation detail to show a single consistent value.

RFI draft: Clarify the intended mounting height for manual pull stations and update Note 4 and the installation detail to show a single consistent value.