Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
---
title: Fire Department Connections
…48 unchanged lines
## Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
−## Where the AHJ adopts a different edition or imposes a local amendment, the AHJ-adopted requirement shall govern. {note}
+## Where the AHJ adopts a different edition or imposes a local amendment, the AHJ-adopted requirement shall govern.
| Standard | Title |
…137 unchanged lines
## The FDC type shall be selected to suit the building wall condition, site access, and AHJ direction.
−## The four common types serve different site conditions. The wall-mounted exposed Siamese is the default and the easiest to operate. The recessed flush type hides the body in a wall box for architectural integration and is required by some AHJs and architects. The freestanding post-type is used when no suitable wall location exists or when the AHJ wants the connection remote from the building. The sidewalk box is used where the FDC must sit at or below a paved surface. {note}
−
```datasheet
label: FDC Type
…7 unchanged lines
```
+## The four common types serve different site conditions. The wall-mounted exposed Siamese is the default and the easiest to operate. The recessed flush type hides the body in a wall box for architectural integration and is required by some AHJs and architects. The freestanding post-type is used when no suitable wall location exists or when the AHJ wants the connection remote from the building. The sidewalk box is used where the FDC must sit at or below a paved surface. {note}
+
## The FDC shall be located in an approved, visible position accessible to fire department apparatus.
…4 unchanged lines
### Inlet centerlines shall be installed not less than 24 in. and not more than 60 in. above the adjacent finished grade.
−### A minimum 3 ft (914 mm) unobstructed clearance shall be maintained on all sides of each FDC inlet.
−
−### The FDC location shall be coordinated across the civil, landscape, and architectural drawings before those drawings are issued for construction.
−
−### No wall, fence, sign, or planting shall be placed within the required 3 ft clearance of any FDC inlet.
−
−## FDC mounting height frequently generates RFIs when finished grade changes late in design. {note}
−
−## The 24 in. to 60 in. window is measured to finished grade, not to the slab or to the pipe penetration. When site grading is revised after the FDC elevation is set, the as-built inlet height can fall outside the code window. Setting the inlet centerline against the final grading plan, and rechecking it when grading changes, prevents the rework. {note}
−
```datasheet
label: Inlet Centerline Height Above Finished Grade
…6 unchanged lines
```
+### A minimum 3 ft (914 mm) unobstructed clearance shall be maintained on all sides of each FDC inlet.
+
+### The FDC location shall be coordinated across the civil, landscape, and architectural drawings before those drawings are issued for construction.
+
+### No wall, fence, sign, or planting shall be placed within the required 3 ft clearance of any FDC inlet.
+
+## FDC mounting height frequently generates RFIs when finished grade changes late in design. {note}
+
+## The 24 in. to 60 in. window is measured to finished grade, not to the slab or to the pipe penetration. When site grading is revised after the FDC elevation is set, the as-built inlet height can fall outside the code window. Setting the inlet centerline against the final grading plan, and rechecking it when grading changes, prevents the rework. {note}
+
## The FDC shall be located within 100 ft of the nearest fire hydrant unless the AHJ approves a greater distance in writing.
…75 unchanged lines
## A single Storz inlet replaces the twin 2½-inch arrangement for departments equipped with large-diameter hose (LDH). The 2023 NFPA guidance rates a 4 in. Storz inlet at 500 gpm and a 5 in. Storz inlet at 750 gpm. A Storz inlet is genderless and connects faster than threaded inlets, which is why adoption is growing. Where the existing FDC is threaded, a listed thread-to-Storz swivel adapter can be added, but a purpose-built Storz body is preferred on new work. {note}
+## Where a Storz inlet is used in lieu of the twin 2½-inch arrangement, its size shall be specified to meet the served system's flow demand.
+
```datasheet
label: Storz Inlet Rating (where used)
…94 unchanged lines
## Each inlet shall be fitted with a protective cap to keep debris out of the body.
−## Brass caps with chains are the traditional choice and resist vandalism better than plastic. Plastic break-away caps are inexpensive and visibly indicate tampering. Locking security caps deter theft of the brass body and prevent debris insertion in vandalism-prone areas, but they require a key carried by the responding department. {note}
−
```datasheet
label: Inlet Cap Type
…6 unchanged lines
```
+## Brass caps with chains are the traditional choice and resist vandalism better than plastic. Plastic break-away caps are inexpensive and visibly indicate tampering. Locking security caps deter theft of the brass body and prevent debris insertion in vandalism-prone areas, but they require a key carried by the responding department. {note}
+
## Locking caps shall be coordinated with the serving fire department before they are specified.
…36 unchanged lines
## A pressure demand note shall be added to the FDC sign where the system demand at the FDC exceeds 150 psi.
−## Where the system requires more than 150 psi at the FDC to meet demand, the responding pump operator must know the target pressure to charge the connection correctly. The pressure demand is added to the identification sign as a note so the information is at the connection rather than buried in the record drawings. {note}
−
```datasheet
label: Pressure Demand Note Required (> 150 psi)
…5 unchanged lines
```
+## Where the system requires more than 150 psi at the FDC to meet demand, the responding pump operator must know the target pressure to charge the connection correctly. The pressure demand is added to the identification sign as a note so the information is at the connection rather than buried in the record drawings. {note}
+
## A single FDC that serves more than one building or zone shall be marked to identify every location served.
…110 unchanged lines
default: []
```