AquaMist Type AM4
Tyco (Johnson Controls) AquaMist Type AM4 — Non-automatic (open) stainless steel nozzle for total compartment engineered water mist deluge systems; Class B fires + incidental Class A.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Visual inspection of all nozzles to confirm no obstructions, corrosion deposits, or mineral buildup affecting spray pattern; check for physical damage to diffusers
Monthly verification that water pressure complies with pump specification and operational characteristic curve; confirm pump operates without abnormal noise or leakage; monthly pump testing
Hydraulic testing of all pipework at 1.5 times normal working pressure for minimum 2 hours during commissioning; ongoing monitoring of water supply filtration systems to prevent nozzle clogging
Inspection of valves, control stations, detection devices, batteries, and alarms for functionality; verification of check valve operation and sectional control valve response; testing every 6 months with monitoring service
Verification of current Certificate of Compliance from installation contractor; confirmation that Design, Installation, Operation and Maintenance (DIOM) handbook is on-site; validation of FM/VdS/UL/IMO certification compliance for system configuration
Type-general inspection and maintenance points for this equipment category — not model-specific.
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