Metu: How are the METU IRD-3DE insulated access doors installed on insulated rectangular air-ducts?

Instructions for the IRD-3DE Access Doors

Installation video of the IRD-3DE (with 3rd lid) insulated access door

To be taken into consideration when fitting stainless steel parts

Available opening dimensions and insulation thicknesses

21   200 × 100 mm   A = min. 10 mm / max. 150 mm
32   300 × 200 mm   A = min. 10 mm / max. 150 mm
42   400 × 200 mm   A = min. 10 mm / max. 145 mm
43   400 × 300 mm   A = min. 10 mm / max. 145 mm
53   500 × 300 mm   A = min. 10 mm / max. 145 mm
54   500 × 400 mm   A = min. 10 mm / max. 130 mm
64   600 × 400 mm   A = min. 10 mm / max. 130 mm
65   600 × 500 mm   A = min. 10 mm / max. 130 mm
75   700 × 500 mm   A = min. 10 mm / max. 130 mm

To avoid injuries we recommend that you wear
protective gloves when handling our products.

The IRD-3DE Access Door is to be installed on an outside insulated rectangular ducts. The insulation is soft and covered with an aluminum foil. Can also be installed on double-wall ducts.

Take the cover plate and draw with a marker its edge on the insulation.

Then cut the insulation (A) about 20 mm inside of this marking.

Take the self-adhesive paper template and apply onto the duct making sure it is well centered inside the opening you just created in the insulation. Then cut the duct along the edge of the template.

Then install the access door by inserting its inner cover at an angle inside the duct. Turn it straight and pull slightly to align it with the opening.

Tighten the knobs till the gasket is sufficiently compressed.

Place the previously cut insulation pieces on top of the access door.

Then place the cover plate (3DE). Tighten the knobs until the cover plate lightly compresses the insulation

IRD-3DE Instructions