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A Manual call point is a device that allows a person to initiate a fire alarm manually. It provides an alternative to automatic detection and can be used when a fire is seen or otherwise recognised. Simple manual systems are expected to activate immediately after the call point is operated.[1]
The device does not remove the need for human recognition and action. Manual initiation depends on someone becoming aware of the fire, reaching and operating the call point and the alarm system then notifying occupants. The response therefore includes human as well as technical steps.[1][2]
Manual call points are used in evacuation strategies where occupants can reasonably be expected to recognise the fire. Their suitability depends on visibility, occupancy, building layout and the availability of automatic detection where needed. They should not be treated as an always-available substitute for automatic detection.[1]
Function in the alarm system
A Fire alarm system can be initiated automatically by detectors or manually by occupants. A manual call point provides a direct initiation path for the person who has recognised the emergency. The system must then transmit and present the alarm in a way that produces the intended response.[2][3]
An Evacuation alarm system communicates that response to occupants. Manual activation can trigger sounders, voice messages or other notifications, but the content still has to be heard and understood. The call point starts the process; it does not itself instruct people how to evacuate.[4][5]
C/VM2 expects manual call point systems to activate immediately after operation. This treats the device and alarm initiation as simple systems without a separate technical detection delay. Any subsequent notification and occupant-response times must still be included in the evacuation analysis.[1]
Manual initiation can complement automatic detection by providing another path when a fire is obvious to occupants. It can also support redundancy, but only if the person and the system both work. A backup manual path is not independent of human recognition and access.[6][2]
Recognition and activation
Manual activation requires the fire to be seen and the manual alarm to be triggered. C/VM2 notes that predicting this can be problematic because it relies on human interaction. The method therefore depends on occupant awareness and cannot guarantee activation at a particular fire-development stage.[1]
For large spaces such as warehouses, C/VM2 uses smoke transport along the building as the delay between ignition and manual activation. This is a modelling proxy for the time until occupants become aware, not a universal human reaction time. Other pre-travel activity and alarm-notification time are excluded from that specific delay.[1]
The approach assumes occupants will be fully aware of a fire in the high-ceiling space. Where intermediate floors are present, they must be open so that awareness is maintained. Enclosed or separated occupied spaces require different treatment because the fire may not be visible to their occupants.[1]
An open layout can therefore support manual initiation, while enclosed offices, washrooms and other separated rooms can require automatic detection. This distinction is based on the fire being visible, not on the building simply having a high ceiling. The actual sightlines and occupied locations must be assessed.[1][7]
Small occupied spaces
C/VM2 allows the manual methodology for a small occupied space within a warehouse if pre-travel activity of 60 seconds is applied after manual activation. The space must be no larger than 500 m², lie on the ground floor of the high-ceiling space and have an escape route directly outside without entering the warehouse. These conditions limit when the method applies.[1]
If those criteria are not met, the adjacent office must have detection time determined in accordance with Subsection 3.2.2 and notification time in accordance with Subsection 3.3.1. Automatic detection must be installed in that office. Manual activation is therefore not accepted as the default for every small enclosed room.[1]
A very small isolated area, such as a washroom or office no larger than 30 m², has a separate exception in the same method. The maximum aggregate occupant load of those spaces is ten people, and the 60-second pre-travel activity time applies to their evacuation. This is a specific C/VM2 rule, not a general occupant-load threshold.[1]
The 60 seconds is pre-travel activity after manual activation, not detector activation time. It represents activity before occupants begin to move and must be kept separate from notification time and travel time. Combining these periods would obscure which part of the response is being modelled.[1][7]
Means of escape
Means of escape depends on occupants being able to recognise the alarm, reach an exit and move to safety. A manual call point can support that sequence when the fire is visible and the call point is accessible. It should not create an additional obstacle or require occupants to move towards the hazard.[8][2]
The small-space rule requires a direct route to the outside without entering the high-ceiling space. This prevents occupants from having to cross the fire environment to use the methodology. A building with no such route does not meet the manual-method conditions for that space.[1]
Call-point location and accessibility should be considered with the evacuation routes. Occupants need to know what the device does and what happens after it is operated, and the alarm must be recognised as an instruction to act. A manual initiation that is not understood or noticed cannot support the evacuation.[4][5]
The escape analysis should compare fire development with the complete response sequence. Recognition, manual activation, notification, pre-travel activity and movement all take time. Treating manual activation as immediate does not mean that evacuation begins immediately.[1][7]
Fire safety management
Fire safety management must maintain manual call points and their alarm paths. Devices should remain identifiable and operable, and the alarm must produce the intended notification. Procedures should also address how occupants recognise the device and what action follows activation.[9][3]
Testing should cover the call point and the notification chain. A manual input can work while the alarm, message or control path fails, and a successful test should show that the intended response follows. Testing should not be limited to the mechanical operation of the call point.[3][10]
Occupants and staff need suitable instruction. A manual system relies on people recognising a fire and knowing to operate the device, and that response should be rehearsed where appropriate. Proulx emphasises that building-specific training and staff guidance are important for timely movement.[4]
Management should also identify when manual initiation is unsuitable. Separated rooms, impaired visibility and occupants unable to recognise or reach the device can make automatic detection necessary. Those limitations should be documented rather than hidden in an assumed universal manual strategy.[1]
Reliability and human factors
Manual initiation depends on human judgement, and people can interpret the same event differently. Some may recognise fire immediately, while others may investigate or wait for confirmation. The response model should reflect that uncertainty rather than assuming every person acts at the first possible moment.[4][11]
Visual access affects recognition. Occupants in open warehouses can see smoke or flames, while those in enclosed rooms cannot and must rely on other cues or automatic detection. The layout therefore determines whether manual activation is plausible and timely.[1][4]
Manual activation can be a useful redundant path when automatic detection fails, but it is not independent of human response. The fire must still be noticed and the call point reached. Reliability assessment should include those dependencies and the possibility that no one operates it.[6][2]
An instruction to evacuate should follow activation in a form occupants understand. An alarm tone alone may not prompt movement, while live messages and staff instructions can explain the event and required action. The manual device therefore has to be part of an intelligible communication strategy.[4][5]
Limits and common misunderstandings
A manual call point does not detect fire automatically. It relies on a person recognising the event and deciding to operate it, and that decision can be delayed or absent. Automatic detection remains necessary where human recognition is not reliable.[1][2]
Immediate activation after operation is not immediate evacuation. Notification, recognition, pre-travel activity and physical movement still take time, and some methods add a specific pre-travel period. These steps should remain separate in the response model.[1][7]
A manual call point is not suitable for every space. Enclosed rooms, large spaces without visibility and occupants who cannot reach the device may require automatic detection. C/VM2 explicitly requires it for adjacent offices when the manual criteria are not met.[1]
Finally, the device does not provide an evacuation instruction by itself. Occupants must hear and understand the alarm and know what to do. The complete alarm and communication system determines whether manual initiation produces an effective response.[4][5]
The activation assessment should identify who is expected to recognise the fire and how. Visual confirmation, another occupant's warning or an automatic cue can lead to different response times. A manual system that depends on a person seeing the fire should not be evaluated as if detection were automatic.[1][2]
The building's sightlines should be documented. Open warehouse floors can make smoke and flames visible, while enclosed offices and washrooms can hide them. That difference explains why C/VM2 requires automatic detection in adjacent offices when the manual criteria are not met.[1][4]
For small occupied spaces, all applicable criteria should be checked together. The area limit, ground-floor location, direct outside escape and 60-second pre-travel activity are part of the same method. Meeting only some of them does not establish suitability for manual initiation.[1]
The 30 m² isolated-area exception and ten-person aggregate limit should also remain attached to that method. They are not general design limits for every manual call point installation. Using them outside C/VM2 would misrepresent the source and could produce an inappropriate evacuation strategy.[1]
For reliability, the call point should be accessible and the alarm should be intelligible. A person can operate the device correctly and still fail to warn others if the sounder, control or message fails. Testing should therefore cover initiation and the complete notification path, not only the mechanical button.[3][5]
For final acceptance, the response model should include recognition, operation, notification, pre-travel activity and movement. Immediate activation after operation is only one step, and the 60-second pre-travel period applies only where specified. Keeping those periods separate prevents an unrealistically optimistic evacuation estimate.[1][7]
For final acceptance, the call point should be assessed as part of the building's evacuation strategy rather than as an isolated device. Recognition, accessibility, initiation and notification all have to work, and the alarm must lead to an appropriate response. A manual system is credible only when that complete sequence is demonstrated.[1][3]
The assessment should also show why manual initiation is appropriate for the occupants and layout. Open sightlines can support it, while enclosed rooms or impaired recognition require automatic detection. Using C/VM2's criteria as a checklist helps identify when the method is valid and when it would create false confidence.[1][4]
A final report should distinguish immediate activation after operation from the longer process of becoming aware and deciding to act. It should include any specified pre-travel period and the actual escape route. This prevents the manual device's simple operation from being mistaken for an immediate evacuation.[1][7]
For final acceptance, the evidence should show that the call point can be found and operated by the intended occupants and that the alarm is understood. Those are human and technical requirements, and a failure in either can make the manual strategy ineffective. Testing should include both the device and the resulting notification.[3][5]
The report should also identify any condition that prevents recognition or access. Enclosed rooms, impaired visibility, queueing and an unsafe route can all delay or prevent operation. Automatic detection is then required rather than assuming that someone will eventually activate the call point.[1][4]
A complete response model therefore links recognition, operation, notification, pre-travel activity and movement. The call point's immediate electrical response is only one part of that sequence, and it must fit within the available escape time. This is the practical test of a manual alarm strategy. It also keeps the device's simple operation in its proper human context.[1][7]
See also
Notes
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 Ministry of Business, Innovation and Employment (2025), p. 28.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Australian Building Codes Board et al. (2005), p. 1.8-7.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Schifiliti, Meacham, and Custer (2002), pp. 4-1–4-2.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 Proulx (2002), pp. 3-350–3-351.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Schifiliti, Meacham, and Custer (2002), pp. 4-32–4-33.
- ↑ 6.0 6.1 Australian Building Codes Board et al. (2005), p. 1.2-24.
- ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 Ministry of Business, Innovation and Employment (2025), p. 30.
- ↑ Purser (2002), pp. 2-85–2-86.
- ↑ Ministry of Business, Innovation and Employment (2025), p. 13.
- ↑ Ministry of Business, Innovation and Employment (2025), p. 14.
- ↑ Proulx (2002), p. 3-351.
References
- Australian Building Codes Board, National Research Council of Canada, International Code Council, & Department of Building and Housing New Zealand. (2005). International fire engineering guidelines (2005 ed.). Australian Building Codes Board.
- Ministry of Business, Innovation and Employment. (2025). C protection from fire: Verification method C/VM2 (2nd ed.). New Zealand Government.
- Proulx, G. (2002). Movement of people: The evacuation timing. In P. J. DiNenno (Ed.), SFPE handbook of fire protection engineering (3rd ed.). National Fire Protection Association.
- Schifiliti, R. P., Meacham, B. J., & Custer, R. L. P. (2002). Design of detection systems. In P. J. DiNenno (Ed.), SFPE handbook of fire protection engineering (3rd ed.). National Fire Protection Association.