pre-startup

Installation requirements

Airside Economizer

Installation

Note: Airside economizer option available on

20-80 tons only.

Unit Handling

1.Hoist the damper cabinet to the installation location with straps positioned under the skid as shown in Figure I-PR-4. Use spreader bars to prevent unit damage during lifting.

2.With the damper cabinet at its final location (near the unit), remove the screws securing it to the skid from the side flanges. Retain these screws for later use.

Unit Preparation

Figure I-PR-4. Proper lifting of the airside economizer

3.The support legs are secured to the skid, and the hanging bracket is secured with wire ties to an inside flange near the cabinet’s base. Remove the C- channel collar and install it on the unit, if not already installed.

4.Remove the roll of 1/8” thick gasket from the damper cabinet’sW-supports, and apply it to the C-channel collar mounted on the rear of the unit. This gasket will provide a seal between the damper cabinet and the unit.

5.Attach the legs (with screws provided) to the leg brackets located on the damper’s base.

6.Attach a field-provided clevis of suitable strength ( > 1/2” ), to each of the corner lifting brackets through the

7/8” diameter holes.

7.Attach to the clevises a means of lifting the damper cabinet from its skid.

Unit Installation

o’clock, and secure it with screws provided. See Figure I-PR-5.

10.Lift the damper cabinet and position it such that the hanging bracket is positioned over the unit’s C-channel collar.

11.Lower the damper cabinet until the holes in its side flanges are aligned with the holes in the C-channel collar. Install screws removed in step 3 through the damper cabinet’s side flanges and into the C-channel’s corresponding holes.

12.Attach ductwork to the top and back dampers according to local codes.

Field Wiring Connections

13.Open the damper cabinet’s door and connect the factory-provided plug from the actuator to the factory-provided plug in the unit’s filter section.

14.Cabinets with TRAQ dampers only: Unroll the two rolls of pneumatic tubing located inside the damper cabinet. Route these tubes through the cabinet’s front upper panel (0.25 dia. holes provided). Connect them to the two pneumatic tubes protruding from the customer electrical connection panel on the unit. Be sure to connect like tubes to each other (black to black, white stripe to white stripe).

15.Cabinets with TRAQ dampers only: Locate the “bullet” sensor and rolled up wiring in the unit’s filter section. Route it into the damper cabinet and insert the sensor into the sensor mounting clip attached to underside of one of theTraq dampers.

8.Slowly raise the damper cabinet from its skid.

9.Attach the hanging bracket across the front of the damper cabinet. Position it with its short flange pointing to four

Airside

Economizer

Figure I-PR-5. Proper installation of the airside economizer option

SCXG-SVX01B-EN

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Trane SCXG-SVX01B-EN manual Airside Economizer Installation, Unit Handling, Unit Preparation, Unit Installation
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SCXG-SVX01B-EN specifications

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