OPERATION AND MAINTENANCE MANUAL mcr LAM vents
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1
Introduction
The present Operation and Maintenance Manual (OMM) is a source of practical data on the
purpose, design, operating principles, good assembling practices, and support of mcr LAM
louvered smoke exhaust ventilators. Furthermore, the OMM contains additional information on
the conditions of operations, maintenance, and product warranty prerequisites. Consistency
with the recommendations contained in this document is a prerequisite for regular operations
of the systems which are designed for smoke exhaust and/or daily ventilation systems, as well
for user safety.
2
Intended use
mcr LAM louvered vents are automatic opening smoke release devices. Their primary function
is to evacuate the products of fire including smoke, fumes and heat from the interior spaces
(for example in production and warehousing facilities, public buildings, etc.) to protect human
life and property by:
• reducing to the minimum the amount of smoke in the escape routes,
• facilitating the fire-suppression process and operations by creating near the floor a
layer containing little smoke,
• protecting the building structure and the furniture, fixtures and equipment,
• limiting the damage caused by smoke, hot fumes and thermal decomposition
products.
Smoke vents can also be used for natural ventilation only, or both for smoke exhaust and
natural ventilation and can be installed on the building roof to admit natural light.
After deciding to provide the smoke vents in the premises the Owner can enjoy the following
benefits:
• lowered hazard class of the building,
• increased maximum fire zone area,
• increased maximum permitted length of escape routes,
mcr LAM louvered vents comply with the requirements of EN 12101-2:2003, as confirmed by
the
Certificate of Conformity No. 1396-CPR-0032, issued by the notified body No. 1396.
Compliance of mcr LAM louvered vents
with the ITB’s Technical Approval No. AT-15-
8192/2015 is confirmed by the Certificate of Conformity No. ITB-2461/W.
mcr LAM smoke exhaust vents are part of the overall MERCOR smoke exhaust system, which
includes also PROLIGHT leaf vents, smoke vents integrated with in mcr PROLIGHT
continuous rooflights, mcr PROSMOKE smoke curtains, MCR9705 and MCR0204 control
units, and other products of this kind.
3
Design and principle of operation
MERCOR
’s louvered vents, mounted on rectangular base assemblies, suit a wide range of
structural opening sizes. All the steel components are zinc coated in hot-dip or electro-
galvanising process.
The upper part of the base assembly is available in insulated and non-insulated option and the
lower part
– the roof curb (used in vents higher than 20 cm) is always uninsulated.
Blades types:
• transparent: 16 mm thick multi-wall polycarbonate panels of varying transparency and
thermal conductivity,
• opaque: two layers of aluminium sheet separated by an air void, EPS or XPS layer.
