SYSTEM DESIGN
FirePro units are selected based on the size and configuration of the risk. The size is determined by the cubic measurement of the internal dimensions of the space. The configuration is the second consideration – the aerosol agent must be distributed within the risk.

The calculation must be made compartment by compartment. The compartment must be completely separate(including above the suspended ceiling and beneath the raised floor). The doors must, in the event of fire, be self-closing and if necessary be activated by the control system. Windows, (smoke/heat) hatches and/or ventilation systems must be and remain switched off and closed during the extinguishing. Leakage losses must have been considered and will, if necessary, form part of the calculation.

Leakage Allowances are specified in the design calculation module, these allowances are expressed in Square Meters and will need to be assessed in the final system design.

For the system design the calculation of the aerosol is a starting point, then the specific configuration of the risk, with final consideration stream length and clearances required.

Stream Length The distances shown under stream length, are a maximum to obtain a rebound of discharge onto the surface (such as the floor) that then guarantees a homogeneous spread of the aerosol in the risk. Stream Length MUST be taken into account when designing a FirePro® System.

Safe clearance A safe distance has been laid down in respect of (flammable) materials and persons for each individual FirePro® unit in relation to the discharge of the aerosol. Its value is given in millimeters, as can be seen in the table.

DESIGN CALCULATIONS
AUSTRALIAN STANDARDS DESIGN CALCULATIONS MARINE DESIGN CALCULATIONS
General Vehicle & Mobile Plant Lithium Marine AMSA Class A Marine AMSA Class B Marine Equip Directive
For use on all applications in any risk type ▪ Calculation based on Gross Volume of risk, NO DEDUCTIONS for items in the risk. For use on all applications ▪ Calculation based on Gross Volume of risk, NO DEDUCTIONS for items in the risk. For use on applications where Lithium involved ▪ Calculation based on Gross Volume, NO DEDUCTIONS for items in the risk. Marine use Only ▪ Vessels upto 24m in length ▪ Calculation based on Gross Volume of risk, NO DEDUCTIONS for items in the risk. Marine use Only ▪ Vessels upto 24m in length ▪ Calculation based on Gross Volume of risk, NO DEDUCTIONS for items in the risk. Marine use Only ▪ Deductions of space for NON Combustible items in the risk ▪ Ships, Oil Platforms and Vessels under IMO.
▪ Leakage allowance identified ▪ ▪ Leakage allowance identified ▪ ▪ Leakage allowance specified ▪ ▪ Timber or Fibreglass Hull ▪ ▪ Alloy or Steel Hull ▪  
EXAMPLE OF BILL OF MATERIALS for Installations