Horizontal ComfortPLENUM Including Two Dampers (CPH21-2)

The two zone horizontal ComfortPLENUM™ without a bypass damper is 21” x 21” x 3’ long. Installers simply cut a circular hole from in the sheet metal using the Cutting Guide decal to choose the size of their hole from 6” to 16” round or rectangular. The Cutting Guide is located on the sheet metal directly in front of the damper. The damper is mounted on the inside of the plenum directly behind the cutting guide. Once the hole is cut and the insulation is trimmed away, the damper blades will be showing. Duct-tab or spin-in starting collars may be installed into the holes. Bypass may be added using another damper installed outside the plenum. This plenum may be used in two zone applications without a damper for bypass. One option is each of two zones may be designed large enough to accommodate all the air through either of the zones when only one is open. Another option is in some two stage applications, the zoning system does not allow the equipment to go into second stage (high speed)unless both zones are open, so no bypass is required. When one zone is open, only low fan is operable. One damper is placed on each side (as shown). However, the plenum may be rotated 90⁰ so that the two zone dampers are on the top and bottom position to avoid framing, maintain better air flow or other reason that is beneficial to the application.

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Horizontal ComfortPLENUM Including Three Dampers (CPH21-3E)

The two zone Horizontal ComfortPLENUM™ with bypass damper is 21” x 21” x 3’ long. Installers simply cut a circular hole in the sheet metal using the Cutting Guide decal to choose the size of their hole from 6” to 16” round or rectangular. The Cutting Guide is located on the sheet metal directly in front of the damper. The damper is mounted on the inside of the plenum directly behind the cutting guide. Once the hole is cut and the insulation is trimmed away, the damper blades will be showing. Duct-tab or spin-in starting collars may be installed into the holes. The two zone plenum has three dampers; one is placed on each (as shown). However, the plenum may be rotated 90⁰ so that one zone damper is on the top and one is on the bottom position to avoid framing, maintain better air flow or other reason that is beneficial to the application. Also, in applications where equipment is above removable ceiling tile, the plenum can be rotated 180⁰ so that the motors are accessible from the bottom. The third damper is on the endcap and is usually used as the bypass damper, but it does not have to be. In this application the bypass damper modulates to maintain the correct pressure in the plenum.

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Horizontal ComfortPLENUM Including Three Dampers (CPH21-3L)

The two zone horizontal ComfortPLENUM™ with the bypass damper on the left is 21” x 21” x 5’ long. Installers simply cut a circular hole in the sheet metal using the Cutting Guide decal to choose the size of their hole from 6” to 16” round or rectangular. The Cutting Guide is located on the sheet metal directly in front of the damper. The damper is mounted on the inside of the plenum directly behind the cutting guide. Once the hole is cut and the insulation is trimmed away, the damper blades will be showing. Duct-tab or spin-in starting collars may be installed into the holes. The two zone plenum has three dampers; two are placed on the left side and one is placed on the right side (as shown). However, the plenum may be rotated 90⁰ to the right so that two zone dampers are on the top and one bottom to avoid framing, maintain better air flow or other reason that is beneficial to the application. This will place the motors for the dampers on the right. Rotate the plenum 90⁰ to the left, where one zone damper is on the top and two zone dampers are on bottom to avoid framing, maintain better air flow or other reason that is beneficial to the application. This will place the motors for the dampers on the left. Also, in applications where equipment is above removable ceiling tile, the plenum can be rotated 180⁰ so that the motors are accessible from the bottom. One damper is usually used as the bypass damper, but it does not have to be. In this application bypass damper modulates to maintain the correct pressure in the plenum.

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Horizontal ComfortPLENUM Including Three Dampers (CPH21-3R)

The two zone horizontal ComfortPLENUM™ with the bypass damper on the right is 21” x 21” x 5’ long. Installers simply cut a circular hole in the sheet metal using the Cutting Guide decal to choose the size of their hole from 6” to 16” round or rectangular. The Cutting Guide is located on the sheet metal directly in front of the damper. The damper is mounted on the inside of the plenum directly behind the cutting guide. Once the hole is cut and the insulation is trimmed away, the damper blades will be showing. Duct-tab or spin-in starting collars may be installed into the holes. The two zone plenum has three dampers; two are placed on the right side and one is placed on the left side (as shown). However, the plenum may be rotated 90⁰ to the right so that one zone damper is on the top and two dampers are on bottom to avoid framing, maintain better air flow or other reason that is beneficial to the application. This will place the motors for the dampers on the right. Rotate the plenum 90⁰ to the left, where two zone dampers are on the top and one zone damper is on bottom. This will place the motors for the dampers on the left. Also, in applications where equipment is above removable ceiling tile, the plenum can be rotated 180⁰ so that the motors are accessible from the bottom.One damper is usually used as the bypass damper, but it does not have to be. In this application the bypass damper modulates to maintain the correct pressure in the plenum. This assures the correct duct pressure through the damper that is open.

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Horizontal ComfortPLENUM Including Four Dampers (CPH21-4)

CPH21-4 spec sheetThe three zone horizontal ComfortPLENUM™ with the bypass damper on the right is 21” x 21” x 5’ long. This plenum has four dampers; two are placed on the right side and two are placed on the left side (as shown). Installers simply cut a circular hole in the sheet metal using the Cutting Guide decal to choose the size of their hole from 6” to 16” round or rectangular. The Cutting Guide is located on the sheet metal directly in front of the damper. The damper is mounted on the inside of the plenum directly behind the cutting guide. Once the hole is cut and the insulation is trimmed away, the damper blades will be showing. Duct-tab or spin-in starting collars may be installed into the holes. The plenum may be rotated 90⁰ to the right or to the left so that two zone dampers are on the top and two dampers are on bottom to avoid framing, maintain better air flow or other reason that is beneficial to the application. Also, in applications where equipment is above removable ceiling tile, the plenum can be rotated 180⁰ so that the motors are accessible from the bottom. Any of the dampers can be used as the bypass damper. This modulating bypass damper assures the correct duct pressure through the dampers that are open.

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Horizontal ComfortPLENUM Dampers (CPH21-5E)

The four zone Horizontal ComfortPLENUM™ with bypass damper is 21” x 21” x 5’ long. Installers simply cut a circular hole in the sheet metal using the Cutting Guide decal to choose the size of their hole from 6” to 16” round or rectangular. The Cutting Guide is located on the sheet metal directly in front of the damper. The damper is mounted on the inside of the plenum directly behind the cutting guide. Once the hole is cut and the insulation is trimmed away, the damper blades will be showing. Duct-tab or spin-in starting collars may be installed into the holes. The four zone plenum has five dampers; two are placed on each side (as shown). However, the plenum may be rotated 90⁰ so that two zone dampers are on the top and two are on the bottom position to avoid framing, maintain better air flow or other reason that is beneficial to the application. Also, in applications where equipment is above removable ceiling tile, the plenum can be rotated 180⁰ so that the motors are accessible from the bottom. The fifth damper is on the endcap and is usually used as the bypass damper, but it does not have to be. In this application the endcap bypass damper modulates to maintain the correct pressure in the plenum.

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