| Roof hatch 700 x 900 mm with scissor stairs/attic ladder, type Small |
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SpecificationThe combination roof hatch 700 x 900 mm with scissor stairs/ attic ladder (Type Small) is TÜV certified according to EN 14975 Roof Hatch - Type: RHT7090A Standard opening size: 700 x 900 mm, aluminium, insulated Weight: 76 kg Gorter® - completely assembled with - Thermal separated construction - Counterbalancing system for assisted opening and controlled closing - Double sealing for water and weather tightness - Diagonal handrail to safely enter and leave roof hatch - Fully opened cover engages automatically, with release button - Cylinder lock with 3 keys, with in and outside side operation. Performance: Insulation value (EN-ISO10077-1/2): 3,2 (m2.K)W Sound reduction (EN-ISO140-3): 22 dB Wind and water tightness (EN1027/EN1873): 650 Pa Construction strength (EN1026/EN1027): ± 3000 Pa Air tightness (EN 1026): 0,5 m3/hm1 Snow load EN 1991-1/5): 200 kg / sqm Standard powder coating: RAL 7047 (outside) and RAL 9010 (inside). Scissor Stairs/ Attic Ladder – Type Small Casing: For structural opening size 900 x 700 mm Height: 320 mm Stairs: Material: cast aluminium Size steps: 360 x 140 x 26 mm, anti-skid Handrail prepared for padlock to secure retracted stairs against misuse Width with hand rail: 450 mm Room height: --------------mm (max. 3000 mm) to be specified from top of floor to bottom of cover. Projection while opening: 500 mm (3000 mm room height) Hardware: Hook and eye Stair guide control system Options Depending on door type, cover weight and other requirements we can install one or more rack-and-pinion drives. These drives are available in 24 Vdc or 230 Vac Operation and control 230Vac This system is controlled with a surface mounted or built-in switch. Operation of two drives through one switch is possible. Operation and control 24Vdc Operation of one or more drives is controlled by a control box with rectifier that is connected to the electricity network. Features - communication with central alarm system - emergency switch - certified for smoke vent system / fire resisting system - programmable - operation control of other objects - control by automatic detectors - smoke, rain, wind, fire etc. - automatic sequence control of two covers that are overlapping - automatic stop in case of unequal load or overload - etc. Depending on the features we will recommend a suitable control box type. Emergency hatches and doors: It is of life importance that an emergency door opens after a break down of the electrical system. For those reasons a control box can be provided with a built-in emergency power pack. If the emergency situation is very critical it advisable to apply doors that can be manually operated after a total break down of electrical network system and the emergency power pack. Electrical installation: Roof Hatches and Floor Doors will be supplied with drives installed together with required options as control box, switches, detectors, installation drawings and electrical diagrams. Electrical installation should be carried out by an electrical contractor.  Partition and marking of safe area on the roofComponents: Rail post, straight, with base plate, net height ca. 1000 mm Rail post, angle, with base plate, net height ca. 1000 mm Mounted on concrete slabs (supplied by others) |
Safety_Report_RH_with_Small.pdf
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