Marked H/V/RVAD/HP, this is the one S-Quad part that puts a full voice sounder and a high-power red visual alarm behind heat detection alone. There is no optical chamber, so EN 54-7 does not apply and neither do the smoke channels.
Only channels 2 and 5 return to the panel, heat and the alarm-hardware fault path, which is the quickest check on a commissioning printout that the right variant went into a kitchen, plant room or loading bay. The alarm side is unchanged from the dual optical version.
Technical data
| Label marking | H/V/RVAD/HP |
| Sensing | Heat only, no optical chamber |
| Analogue channels reported | 2 and 5 |
| Alarm outputs | Red EN 54-23 strobe, tone sounder and stored speech |
| Strobe current, VAD alone | 16 mA High, 11.5 mA Medium, 6 mA Low |
| Total loop current, turbo | 20.5 mA High, 16 mA Medium, 10.5 mA Low |
| EN 54-23 coverage, High | C-3-14 at 461.8 m3, plus Category O-4.5-14 (4.5 m height, 14 m diameter) at 692.7 m3 |
| EN 54-23 coverage, Medium | C-3-13 at 398.1 m3, plus Category O-4-13 (4 m height, 13 m diameter) at 530.9 m3 |
| EN 54-23 coverage, Low | C-3-10 at 235.6 m3, no Category O |
| Element standards | EN 54-5:2000 heat, EN 54-3:2001 sounder, EN 54-23:2010 visual alarm. No EN 54-7 |
Specifications from 4188-1073 issue 3.
Compatibility
Takes the range's usual mounting hardware, and being a visual alarm it needs the plate: S4-701, or S4-705 onto an existing S4-700. High and Medium intensity depend on an Enhanced Loop Card at the Vigilon Plus panel. Where smoke detection is wanted in the same enclosure, S4-720 is the plain heat sensor and S4-711-V-VAD-HPR the dual optical equivalent of this part.
Installation
Base, plate, head, as elsewhere. Watch one thing on a mixed drawing: heat spacing and visual alarm spacing are different calculations, and the codes above govern only the strobe.
Full details: S-Quad data and installation instructions — 4188-1073 issue 3 · 28 pages · heat channel data, red VAD coverage and the loop load calculator instruction
Need S4-720-V-VAD-HPR priced?
Quote response within 4 business hours (Mon–Fri 8:30–5:00). Same-day on stock items.