Gent S4 Heat Sensor Voice Sounder High Power red VAD
| Part no. | S4-720-V-VAD-HPR |
|---|---|
| Brand | Gent |
| Range | S4 Detectors |
| Sub-range | Detectors with Voice Sounder & VAD |
Image for illustration; item supplied may differ
At a glance
- Heat detectionA thermistor detects heat, with A1, A2, A2S, B and BS response options.
- High Power red visual alarmHigh, Medium and Low ceiling coverage: C-3-14, C-3-13 and C-3-10.
- Voice and attention tonesStored speech follows an attention tone; speech circuit checks run without audible test signals.
- Low setting on NanoNano operates this VAD at Low, with C-3-10 ceiling coverage.
- Synchronisation within one panelVoice sounder and VAD outputs synchronise across its loops; synchronisation does not cross a panel network.
- IP21C mountingUse the S4-701 base and IP seal plate for IP21C.
Description
The Gent S4-720-V-VAD-HPR is an S-Quad heat sensor with a voice sounder and a red High Power VAD for Vigilon Plus, Compact Plus and Nano. At High, its light covers C-3-14; on Nano it runs at Low with C-3-10 coverage. It takes power from the loop and has a built-in short-circuit isolator. Stored voice messages give spoken warnings alongside the light. Use the S4-701 base and IP seal plate for IP21C. By default, the light flashes once every two seconds. It detects heat through a thermistor and has no optical smoke sensor. Five heat classes are available: A1, A2, A2S, B and BS, with A1 as the default.
S4-720-V-VAD-HPR detects heat through a thermistor and provides spoken and visual warnings from the same ceiling position. It has no optical smoke sensor. Heat options are Class A1, A2, A2S, B and BS; the default is Class A1. The selected state sets the heat response at the panel.
Read the full technical description
S4-720-V-VAD-HPR detects heat through a thermistor and provides spoken and visual warnings from the same ceiling position. It has no optical smoke sensor. Heat options are Class A1, A2, A2S, B and BS; the default is Class A1. The selected state sets the heat response at the panel.
Four English speech messages cover emergency evacuation, an incident alert, a system test and fire evacuation, with a bell tone available as well. Audio storage is up to 20 seconds, with additional local attention tones. Speech follows an attention tone, and pauses before and after the message can be programmed. Fault monitoring checks the speech circuit without playing a test sound.
The red High Power VAD offers High, Medium and Low settings. Ceiling coverage is C-3-14, C-3-13 and C-3-10 respectively. High also supports O-4.5-14 and Medium supports O-4-13. On Nano the light is fixed at Low, giving C-3-10 coverage. Use the two-second flash interval for EN 54-23 operation.
Supplied with one sensor head and one blue protective dust cover. The mounting base and IP21 mounting plate are not included. Fit the S4-701 base with its IP seal plate to achieve IP21C. S-Quad VAD installations require an IP21 mounting plate for EN 54-23 operation. The voice sounder and visual alarm synchronise across all loops of the same panel. Synchronisation does not extend across a network of panels.
For Vigilon Plus and Compact Plus VAD coverage, use MCC/MCB software v4.52 or later and LPC software v4.48 or later. Use Vigilon Commissioning Tool v1.32 or later for device setting changes. Nano configuration uses Nano Commissioning Tool v3.0 or later. Verify the system design with the Gent Battery Standby and Loop Load calculator.
Specifications
| Sensor type | Heat |
|---|---|
| Power source | Loop powered |
| Loop isolator | Built-in short-circuit isolator |
| Panel families (S-Quad) | Vigilon Plus, Compact Plus and Nano |
| Operating voltage (S-Quad) | 35-48 V |
| Enclosure (S-Quad) | ABS |
| Body colour (S-Quad white models) | White, RAL 9010 |
| Head dimensions (S-Quad) | 117 mm diameter × 49.6 mm height |
| Operating temperature (S-Quad) | -10°C to +50°C |
| Storage temperature (S-Quad) | -20°C to +70°C |
| Relative humidity (S-Quad) | 95%, non-condensing, at +5°C to +45°C |
| Mounting base | S4-701 with IP seal plate |
| Voice output | Stored speech and attention tones |
| VAD light colour | Red |
| VAD power class | High Power |
|---|---|
| IP rating | IP21C with S4-701 base and IP seal plate |
| VAD flash interval | 2 seconds (0.5 Hz), EN 54-23 setting |
| VAD ceiling coverage: High | C-3-14; 461.8 m³ |
| VAD ceiling coverage: Medium | C-3-13; 398.1 m³ |
| VAD ceiling coverage: Low | C-3-10; 235.6 m³ |
| VAD open coverage: Medium | O-4-13; 530.9 m³ |
| VAD open coverage: High | O-4.5-14; 692.7 m³ |
| VAD-only current maxima (HPR class) | High 16 mA; Medium 11.5 mA; Low 6 mA |
| Audio storage | Up to 20 seconds; additional local attention tones |
| Factory audio | Four English speech messages and a bell tone |
| Gent range datasheet: loop maxima | High: up to 45; Medium: up to 60; Low: up to 100; guidance only, dependent on loop load; verify with Vigilon loop load calculator |
| Heat response classes | A1, A2, A2S, B and BS |
Specifications per manufacturer documentation, subject to change. E&OE.
Standards and approvals
| Standard | What it covers |
|---|---|
| LPCB approved | Approved by the Loss Prevention Certification Board for fire detection and alarm system products. |
| EN 54-3:2001 + A1:2002 + A2:2006 | |
| EN 54-5:2000 + A1:2002 | |
| EN 54-17:2005 + AC:2007 | |
| EN 54-18:2005 + AC:2007 | |
| EN 54-23:2010 | |
| LPCB ref 042bv/01 |
Approval body: Loss Prevention Certification Board (BRE Global Limited).
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| s quad sensor and sensor sounder vad brochure data sheet | Datasheet | 453 KB | Download PDF |
| Gent 4188-1073 issue 7 - S-Quad data and installation (white and black) | Installation | 7.2 MB | Download PDF |
Optional accessories
- S4-700-34K34000 S-Quad Adapter BaseCompatible 34000 S-Quad adapter base for retrofitting this sensor onto an existing 34000 base.£23.57ex VAT£28.28 inc VATIn stock
FAQs
What visual alarm coverage does S4-720-V-VAD-HPR provide?
At High, the S4-720-V-VAD-HPR gives C-3-14 ceiling coverage, equal to 461.8 m³. Medium gives C-3-13 and Low gives C-3-10. The open categories are O-4.5-14 at High and O-4-13 at Medium. In a C rating, the two numbers give the maximum ceiling height and coverage diameter, both in metres; the covered space is cylindrical. Use a two-second flash interval and the S4-701 base with its IP seal plate. Coverage changes with the selected power setting.
Does S4-720-V-VAD-HPR detect smoke as well as heat?
The S4-720-V-VAD-HPR is a heat detector with a voice sounder and red High Power VAD. It has no optical smoke sensor. Its thermistor provides the heat input, and panel configuration selects the response. Five approved heat classes are available: A1, A2, A2S, B and BS, with A1 as the default. The speech and visual alarm functions provide warnings from the same ceiling position. For dual optical smoke and heat sensing with voice and a red VAD, the corresponding model is S4-711-V-VAD-HPR.
How does S4-720-V-VAD-HPR operate on Nano?
The S4-720-V-VAD-HPR works on a Nano loop, where its VAD is fixed at Low. Its ceiling coverage on Nano is C-3-10. The High and Medium visual alarm settings are therefore unavailable on Nano. Its sensing and voice functions remain part of the device. Configure the Nano system with Nano Commissioning Tool v3.0 or later. Use the S4-701 base and IP seal plate, and keep the visual alarm flash interval at two seconds.
Which panel software and tools are needed for S4-720-V-VAD-HPR?
For S4-720-V-VAD-HPR on Vigilon Plus and Compact Plus, EN 54-23 coverage needs MCC/MCB software v4.52 or later and LPC software v4.48 or later. Use Vigilon Commissioning Tool v1.32 or later for setting changes. Nano configuration uses Nano Commissioning Tool v3.0 or later, and its VAD setting is fixed at Low. Use the two-second flash interval for EN 54-23 operation. Verify the complete system design with the Gent Battery Standby and Loop Load calculator.
How are S4-720-V-VAD-HPR alarm outputs set up and synchronised?
The S4-720-V-VAD-HPR voice sounder and VAD outputs synchronise with compatible devices across all loops belonging to the same panel. Synchronisation does not extend across a network of panels. The red VAD uses a two-second flash interval for EN 54-23 operation. The sounder provides speech preceded by an attention tone, as well as tone signals. On Nano, this VAD operates at Low with C-3-10 ceiling coverage. Fit the S4-701 base and IP seal plate for IP21C.
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