firespy Phantom calculator

Project information

Project details

Project name

Company / design firm

Designer name

Report validity (days) Validity period shown on the PDF report

Step 1 — Kitchen hood type

Wall hood

Hood against a wall. Single pipe runs the hood length. Grease channel(s) on one side.

Central / island hood

Suspended hood, open both sides. Pipe enters via lateral T-piece, runs U-shape. Cooking nozzles on both sides; detectors shared at centre.

Ventilated ceiling

Nozzles embedded in ceiling panels with bulkhead adapters. Covers cooking zone by area or appliance. Always P2.

Step 2 — Protection strategy

Area protection (linear)

Nozzles every 350 mm along hood or ceiling plenum length, covering all appliances below.

Protection by appliance

Dedicated nozzle(s) per cooking appliance type and size.

Step 3 — Installation type

Surface mounted

Pipe runs visibly inside the hood or ceiling, fixed with tube supports on stud-welded threaded pins. Standard — economical, easy to maintain.

Concealed (flush)

Pipe hidden inside panel or plenum. Nozzles flush-mounted with bulkhead adapters — fixed, directional or glass panel. Premium finish for show kitchens and ventilated ceilings.

Step 4 — Hood dimensions & routing

Hood dimensions

Hood length (mm) Main dimension — pipe runs along this length

Hood width / lateral depth (mm) Reference only

Nozzle height above cooking surface (cm)

Distance: container to hood entry (m) Pipe run from container to hood wall/ceiling entry

Distance: container to manual release (m) 8×1 control tube from container to manual release

UV-C cleaning system present?

Step 5 — Cooking zone

Area protection — nozzle layout

Step 6 — SPY detectors & temperatures

SPY detector configuration

Auto-calculated based on protection mode, hood length and ducts. Minimum 2 per system. Adjust upward if additional monitoring points are required.

SPY in plenum / along hood Suggested: 0

SPY in exhaust ducts 1 per duct — suggested: 0

SPY trigger temperature

Total SPY detectors —

Step 7 — Grease channel(s)

Grease channel configuration

1 nozzle P2 per 2 metres of channel length. Wall hood: typically 1 channel. Central hood: typically 2 channels (one per side).

Number of grease channels

Step 8 — Exhaust ducts & separators

Exhaust air ducts

Number of exhaust air ducts to protect

Per §6.8/6.9: 2× P2 per duct. Max rect. perimeter 1800 mm (0.18 m²). Max round Ø573 mm (0.26 m²). Ventilation shuts off immediately on alarm.

Grease / aerosol separators

Separator protection required?

Step 9 — Manual release & pressure switches

Manual Release & Pressure Switch Configuration

Manual release type

Number of manual releases

Number of pressure switches

Step 10 — Pipe calculation & adjustments

Automatic pipe calculation

Fittings

Main line 12×1 (m) Auto-calculated — adjust if needed

Detection line 8×1 (m) firespy only — SPY detectors

MR line 8×1 (m) Container → manual release

90° bends Auto-estimated

T-pieces Auto-estimated

Bulkhead fittings

Bulkhead size(s):

Review all steps above, then generate your system design

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Container(s)—config

Total nozzles—units

Cooking nozzles—units

GC nozzles—units

SPY detectors—elements

System type—

Nozzle allocation by zone

Total → litres required → container selection —

Bill of materials — firespy PHANTOM® DIN EN 17446:2021 · doc.1001601 v03 · 07.04.2026

Item	Description	Qty	Ref.

System diagram — elevation view (schematic) Not to scale · auto-generated from calculated values

System diagram — top view / plan (schematic) Not to scale · auto-generated from calculated values

Note: This calculation is based on the firespy PHANTOM® design guidelines (document 1001601 v03, 07/04/2026) and DIN EN 17446:2021. Final design must be validated and commissioned by a certified protecfire installer. Pipe lengths are auto-estimated — on-site survey required. Energy supply shut-off (electrical, gas, compressed air) must be commissioned separately by a qualified contractor.