Roof hatch RHT7014 and electric scissor stair Large

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roof hatch RHT7014 electric scissor stair type large

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Specifications

CE ETA-15/0338
KOMO:SKG.0372.0503
Aboma certificate
TÜV NORD certified according to EN 14975:2010, with label ''Baumuster geprüft"

 

Roof hatch, type RHT7014
Standard opening size: 700 x 1400 mm
Weight: 52 kg
Gorter® - completely assembled with

  • Thermal separated and insulated aluminium construction
  • Counter balancing system for assisted opening and controlled closing
  • Diagonal hand rail to safely enter and leave roof hatch
  • Double sealing for water and weather tightness
  • Fully opened lid engages automatically, with release button
  • Cylinder lock (31 x 70 mm) with 3 keys, in- and outside operation, with 1 point lock

Performance according to CE (ETA-15/0338):

  • Resistance to permanent loads (Eurocode EN 1993-1-1): 1050 kg/m²
  • Insulating (EN-ISO10077-2): Uw ≤ 0.32 W/(m².K)

  • Sound reduction (EN-ISO140-3): 26 dB
  • Watertightness (EN 12208): Class E 650
  • Resistance to wind load (EN 12210): Class E 3000
  • Resistance to snow loads (EN 1991-1-3): 3.97kN/m²
  • Impact hard body (EN 356): Class P5A
  • Impact soft body (EN 13049): Class 5
  • Air permeability (EN 12207): Class 3

Standard powder coating:

Powder coated in RAL7047 (outside) and RAL9010 (inside).


Electric scissor stair, type Large

Completely assembled Gorter electric scissor stairs


Casing:

  • For structural opening size (W x L x H): 700 x 1200 x 250 mm

Room height: ........ mm, standard 3000 mm.
to be specified from top of floor to bottom of cover.
Stair:

  • Material: cast aluminium
  • Size steps: 350 x 140 x 32 mm, anti-skid
  • Step distance: ca. 250 mm, depending on room height
  • Horizontal position of steps is adjustable

Projection while opening:
700 mm (room height 3000 mm)
950 mm (room height 3500 mm)

Electric operation:

A powerful motor drives the Gorter electric scissor stairs. The system comes with a control unit and a wireless RF remote control as standard.
Hardware:

  • Compact control unit 230V AC, motor (24V DC)
  • Wireless RF remote control
  • Stair guide control system

Options

Gorter® Electrical Operation of Roof Hatches and Floor Doors

Standard Electrical operation - GT35

electrical operation gt35The Gorter GT35 electrical operation is a solution, which can be fitted on any standard Gorter RHT roof hatch or floor door of the type WA, WAPT and OP. The two powerful electric motors are always fitted as a pair on both sides of the lid. The motors are pre-fitted from the factory or can be fitted afterwards on any standard RHT roof hatch from model year 2012 and later.

 

Suitable for

  • Roof hatches type RHT
  • Hinged Floor doors type WA (flush), WAPT and OP

 

Operation and control 230Vac

The Gorter GT35 is a system with two motors and a control unit. As a standard the system is supplied with a compact surface mount keypad for easy operation. The keypad connected with signal cable can be installed remote from control unit. On request the system can be supplied with wireless remote control.

Dimensions:

Control unit: 265 x 105 x 40 mm

Keypad: +/- 70 x 50 x 10 mm

Length of signal/power cable motors: 2 m

Electrical installation:

The drives and the wiring must be installed by a certified installer

 

Electrical operation for linking to a fire alarm systems

electrical_operation

Depending on the access door type, the weight of the cover and the application, we can install one or more gear rack drives. These drives are available in 24 Vdc or 230 Vac.
Operation and control 230Vac

This is the simplest system with 1 motor. It can be operated with an integrated or surface-mounted switch, not included.
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, possibly combined with emergency switch
  • 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.
Electrical installation:

The drives and the wiring must be installed by a certified installer.


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Gorter roof hatches with scissor stairs provide practical and safe access to flat roofs for maintenance work or other purposes. The roof hatch can be installed on flat roofs with a maximum pitch of 30°.

 

Access to the roof

The Gorter combination of roof hatch and Large Electric scissor stair provides generous access to the roof and is available for ceiling heights of max. 3,000 or 3,500 mm. The roof hatch has an opening of 700 x 1,400 mm.

 

Large type: max. ceiling height 3,000 mm

Large H type: max. ceiling height 3,500 mm

 

Electric scissor stairs

A powerful motor drives the Gorter electric scissor stairs. The system comes with a control unit and a wireless RF remote control as standard.

 

Scissor stair ensures free space under the roof hatch

Roof hatches combined with an electric scissor stair are ideal for applications where occasional but also frequent access to the roof is required. When the scissor stair is folded, you always have free space under the hatch.

 

Fully thermally broken

The Gorter RHT roof hatch has a fully thermally broken curb and cover, and a proven high insulation value of Uw ≤ 0.319 W/(m².K) This minimises the chance of condensation forming and guarantees energy cost savings.

 

Gorter RHT roof hatch with Large Electric scissor stair:

  • Roof hatch is CE (ETA-15/338), TÜV NORD, Aboma and KOMO® certified, with fully thermally broken curb and cover
  • Scissor stair with Aboma and TÜV NORD quality mark
  • Roof hatch safe operation with one hand
  • Safe grip all the way to the roof
  • 10-year warranty on the roof hatch, 1 year on climbing devices

  • Optional electric control of roof hatch
  • High-quality aluminium construction of roof hatch and scissor stair
  • Euro cylinder lock with indoor and outdoor operation
  • Burglar- and sound-proof roof hatch
  • Fast delivery

Unlike the standard Large scissor stair, the Large electric scissor stair cannot be used with an extension of scissor stair to bridge a plenum (= space between suspended ceiling and roof).

 

Read more about the advantages of Gorter roof hatches here