Application

Suitable for rigid plus flexible walls.

Description

Fire and smoke air transfer grille which provides a solution to the problem of containing both fire and smoke in emergency conditions yet offering good air transfer through apertures in elements of building construction. Using the same intumescent configuration as the LVH44 but incorporating an electro mechanically operated smoke shutter mechanism. Can provide up to 120 minutes fire and smoke resistance.

Features and benefits:

  • Contains cold smoke plus toxic gases remote from source of fire.
  • Simple installation.
  • Auto reset plus failsafe.
  • Safe low DC voltage.
  • Status reporting plus auto-cycling via Talkback Damper Control Monitor (DCM).
  • Optional audio warning facility.
  • Connects to fire panel plus/or building management system (BMS).
  • BMS alarm notification via Alarm Monitoring System (AMS).
  • Nominal 5 mA current open/closed.
  • Max 200 mA in operation.
  • Allows bi-directional airflow.
  • Use with talkback damper control system. Optional Alarm Monitoring System (AMS) and battery backup. Optional cover grille.
  • Other non-standard sizes may be available - consult the manufacturer for details.

Test evidence:

Fire: BS 476-20 and 22:1987. Fire: BS EN 1364-1:2014 and BS EN 1364-5:2017. Smoke: BS 476-31.1:1983 (shutterplate).

Performance:

Can be used to provide up to 120 minutes resistance to fire + cold smoke. EI rating of 120 minutes when used in conjunction with a cover grille.

Orientation:

LVH44S is best suited in the vertical plane.

Positional requirements:

The upper edge of the grille shall be no higher than 3000 mm from floor level. The lower edge of the grille shall be no closer than 400 mm to floor level.

Minimum wall depth:

Minimum wall thickness 95 mm.

Application:

Suitable for rigid plus flexible walls.

General information

Size

See 'Options' below and insert requirements.

Finish

Silver as standard

Material

Z275 galvanized steel. Metal slats with an intumescent core. Electro mechanically operated smoke shutter mechanism

Uniclass 2015

Pr_30_59_94_32 Fire-resisting air transfer grilles with smoke shuttersPrimary

CAWS

U90/360 Air transfer grilles

U90/360 Air transfer grilles

Specification data - Fire-resisting air transfer grilles with smoke shutters

Product Reference

LVH44S Fire Plus Smoke Resistant Air Transfer Grille

Size

See 'Options' below and insert requirements.

Accessories

None

Alarm Monitoring System (AMS) and battery backup.

Cover grille

Standard product features

Free area:

30–37% free area (approximately). Size dependent.

Material

Z275 galvanized steel. Metal slats with an intumescent core. Electro mechanically operated smoke shutter mechanism.

Finish:

Silver as standard.

Fixing

Each fire + smoke air transfer grille is manufactured to size. When ordering please ensure the aperture can accommodate the non-combustible housing and allow up to a 5 mm gap around the perimeter. Screwed and bedded in Lorient intumescent sealant.

Product Options

Size:

  • Width: 200–600mm (in 50 mm increments).

Height: 150–600mm (in 50 mm increments).

Literature

Specialised Fire Resistant Door Hardware

Specialised Fire Resistant Door Hardware

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