ASD / VESDA
Detector status, filters and standby power. Sampling pipe connections, alarm outputs and event history.
Planned care for detection, alarm, suppression and emergency communication systems in critical facilities.
The scope connects asset checks with a controlled work method, a visible maintenance plan and evidence-led reporting.
Each system has its own inspection points and test evidence. The final MOP reflects the installed equipment and the site's operating requirements.
Detector status, filters and standby power. Sampling pipe connections, alarm outputs and event history.
Control panel, detectors, manual call points, sounders and interfaces. Functional and event checks.
Releasing panel, battery, module circuits, cylinders, pressure, actuators, pipework and nozzles.
Valve trim, air and water pressure, supervisory switches and solenoid. Valve reset and restoration.
Location, mounting, cylinder condition, pressure gauge, seal, hose and service status.
Reels, hoses, valves, duty and jockey pumps. Start sequence, pressure and recorded readings.
Outlet valves, caps, hose connections, access, pressure and inspection records.
Rack, amplifiers, speakers and zones. Announcement and interface checks.
Master station, handsets and call points. Communication checks and recorded results.
Preparation, execution and close-out follow one controlled sequence.
Confirm the calendar, asset list, access windows and system interfaces.
Document the test sequence, permits, notifications, isolations and rollback steps.
Brief the team, control impairment and accidental discharge risk, then record test readings.
Return equipment to service and verify the normal system state.
Provide results, photo evidence, defects and follow-up actions.


The work scenes are AI-generated visuals based on H2O vest references.
The plan below carries the work content and timing from the supplied schedule. Q1–Q4 identify quarterly visits; 1M and 1Y identify monthly and annual work.
| Work content | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASD / VESDA — quarterly | Q2 | Q3 | Q4 | |||||||||
| ASD / VESDA — annual | 1Y | 1Y | ||||||||||
| Fire extinguishers — monthly | 1M | 1M | 1M | 1M | 1M | 1M | 1M | 1M | 1M | 1M | 1M | 1M |
| Gaseous suppression — quarterly | Q1 | Q2 | Q3 | |||||||||
| Gaseous suppression — annual | 1Y | 1Y | ||||||||||
| Fire alarm — quarterly | Q1 | Q3 | Q4 | |||||||||
| Fire alarm — annual | 1Y | |||||||||||
| Fire hose reel & pump — quarterly | Q2 | Q3 | Q4 | |||||||||
| Fire hose reel & pump — annual | 1Y | 1Y | ||||||||||
| Public address — annual | 1Y | |||||||||||
| Pre-action sprinkler — quarterly | Q2 | Q3 | Q4 | |||||||||
| Pre-action sprinkler — annual | 1Y | |||||||||||
| Fire hydrants — quarterly | Q1 | Q2 | Q3 | Q4 | ||||||||
| Fireman intercom — quarterly | Q1 | Q2 | Q3 | Q4 |
Work windows remain subject to site coordination and approved method statements.
Selected maintenance report screenshots show the asset details and photo evidence recorded during inspections.

Detector status, filter, backup battery and sampling pipe evidence.

Panel, cylinder identification, pressure, pipework and nozzle evidence.

Valve assembly, pressure, switch and solenoid evidence.
Start with the asset list, operating constraints and reporting requirements for your site.