Fan filter mounting frame

A method of supporting an equipment unit with a suspension grid system, which suspension grid system includes a number of rails and cross rails and defines an array of generally rectangular cells, comprising the steps of:

• cooperatively sizing the equipment unit and at least one cell so the equipment unit may pass through the cell without displacing or otherwise disrupting the suspension grid system;
• passing the equipment unit through the cell and placing the equipment unit in a selected corner of the cell in supporting engagement, whereby the equipment unit is at least partially supported by the cell and the equipment unit is spaced from an opposite corner of the cell, which opposite corner is generally diagonally opposite of the selected corner of the cell;
• providing a frame insert that is adapted to extend between the opposite corner of the cell and the equipment unit in supporting engagement with each of the suspension grid system and the equipment unit;
• and
• placing the frame insert in the opposite corner and supporting the equipment unit.

A fan filter mounting frame comprising:

• a suspension frame that includes a first rail that extends from a first end to a second end, including a second rail that has a third end at the second end and that extends from the second end to a fourth end, the fourth end being spaced from the first end so the first rail and the second rail define an included angle that is less than 180 degrees, define an included area in the arc of the included angle, and define a reference plane, and including a third rail that has a fifth end at the fourth end and that extends generally in the reference plane from the fourth end to a sixth end, the sixth end being spaced from the second end so the second rail and the third rail define an included angle that is less than 180 degrees and the third rail is in the included area;
• an equipment unit that has a housing, the unit corresponding to the suspension frame so the unit is slidable adjacent the first, the second, and the third rails in a direction that is perpendicular to the reference plane, the unit being supported by the suspension frame and spaced from the first and the second rails;
• and
• an insert that has a first leg that extends along the first rail and extends between the unit and the first rail, and has a second leg that extends along the second rail and extends between the unit and the second rail.

A fan filter mounting frame comprising:

• a suspension grid frame that includes at lease two parallel rails that are spaced apart and that includes at least two parallel cross rails that are spaced apart and are perpendicular to the rails, the rails and cross rails defining a rectangular cell that lies in a reference plane;
• a unit that has a housing, the unit corresponding to the suspension frame so the unit is slidable into the cell, adjacent and between the rails and cross rails, and in a direction that is perpendicular to the reference plane, the unit being located in a corner of the cell and being supported by one of the rails and an adjacent one of the cross rails, whereby a first gap is defined between the unit and the other of the two rails and a second gap is defined between the unit and the other of the two cross rails;
• and
• an insert that has a first leg that extends along the other of the two rails, between the unit and the other of the two rails, and structurally bridges the first gap between the unit and the other of the two rails and that has a second leg that extends along the other of the two cross rails, between the unit and the other of the two cross rails, and structurally bridges the second gap between the unit and the other of the two cross rails.