Roof Curb

1 Installer s GuideMarch 2006 ACC-SVN43A-ENRoof CurbPackaged Rooftop UnitsModel: BAYCURB042 AUsed with:T*C036A, 048A, 060 ATSC060A, TSC036E, 048E, 060 ETHC033A, 043A, 063AY*C036A, 048A, 060 AYSC060 BYSC036E, 048E, 060 EYHC033A, 043A, 063 AWSC036A, 048, 060 AWSC036E, 048 EWSC060 BModel: BAYCURB043 AUsed with:T*C072A, 090A, 092A, 102A, 120 ATSC072-120BY*C072A, 090A, 092A, 102A, 120 AWSC060E, WSC072-120A, WSC072-090 BContentsACC-SVN43A-EN2 General Information .. 3 Precautionary Measures .. 3 Initial Inspection .. 3 Clearances .. 3 Installation .. 4 Roof Curb Installation for BAYCURB042A .. 4 Installation .. 4 Figure 7. Curb Dimensional Data T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E .. 6 Figure 6. Curb Dimensional Data T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E.

2 6 Roof Curb Installation for BAYCURB043A .. 7 Figure 13. Curb Dimensional Data T*C072-120A, TSC072-120B, Y*C072-120A, YSC072-120B, WSC060E, WSC072-120A, WSC072-090B .. 9 Figure 14. Curb Dimensional Data T*C072-120A, TSC072-120B, Y*C072-120A, YSC072-120B, WSC060E, WSC072-120A, WSC072-090B .. 9 Figure 15. Roof construction ..10 Figure 16. Existing roof construction ..10 Figure 17. Center of gravity ..12 ACC-SVN43A-EN3 WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe Indicates a situation that may result in equipment or property-damage-only manual describes the layout and installation procedures required to properly assemble and install the roof curb.

3 Illustrations in Figure 7 for T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E units or Figure 15 for T*C072-120A, TSC072-120B, Y*C072-120A, YSC072-120B, WSC060E, WSC072-120A, WSC072-090B units are provided for dimensional data regarding roof opening curb package ships unassembled, along with the required hardware and gasketing material. Roof insulation, cant strips, flashing (if desired), nails, and sheet metal screws must be furnished by the installing Fiberglass Wool!Product contains fiberglass wool. Disturbing the insulation in this product during installation, maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of California to cause cancer through inhalation.

4 Glass wool fibers may also cause respiratory, skin or eye Measures Avoid breathing fiberglass dust. Use a NIOSH approved dust/mist respirator. Avoid contact with the skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves, and eye protection. Wash clothes separately from other clothing: rinse washer thoroughly. Operations such as sawing , blowing, tear-out, and spraying may generate fiber concentrations requiring additional respiratory protection. Use the appropriate NIOSH approved respirator in these Aid MeasuresEye Contact -Flush eyes with water to remove dust. If symptoms persist, seek medical Contact -Wash affected areas gently with soap and warm water after InspectionCompare the order number on the shipping label with the accessory identification information on the ordering and shipping documents to verify that the correct accessory has been recommended clearances for single-unit installations are illustrated in Figure 6 for T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E units or Figure 13 for TT*C072-120A, TSC072-120B, Y*C072-120A, YSC072-120B, WSC060E, WSC072-120A, WSC072-090B units.

5 These minimum requirements are not only an important consideration when determining unit placement, but they are also essential to ensure adequate serviceability, maximum capacity, and peak operation reduction of the unit clearances indicated in this illustration may result in condenser coil starvation, or the recirculation of warm condenser air. Actual clearances which appear to be inadequate should be reviewed with a local sales Information 4 ACC-SVN43A-ENInstallationRead the entire manual carefully to become familiar with the roof curb installation procedures. If the roof curb will be mounted on a new building, it can be assembled at any convenient location and installed as soon as the roof support members are in place. As a general rule, the curb should be placed directly on the roof support members.

6 Use tack welding or other suitable fastening method to secure the roof curb in curb can also be mounted on a roof deck. In this case, additional nailing plates must be provided directly below the flanges of the curb to give further support, and to minimize vibration. See Figures 15 and the installation is on an existing building, hoist the shipping container directly onto the and Return Air DuctworkAll ductwork must be run and attached to the curb before the unit is set into place. All ductwork must be fabricated and installed by the installing contractor. To ensure proper duct construction and installation, SMACNA recommendations should be closely : All field fabricated panels used must be insulated.(See Figure 5 or Figure 12 ).Roof OpeningFor safety and sound considerations, do not cut out the entire roof deck within the curb SupportThe roof must be capable of adequately supporting the weight of the rooftop unit as well as that of the curb; refer to Figure 17 and Tables 1 and 2 for specific center-of-gravity, corner weight information and accessory may be set either lateral or parallel to the roof support members.

7 The combined weight of the unit, accessories, and curb should be evenly spaced between a minimum of two (2) supports. Ensure that the curb s position on the roof supports does not interfere with the clearance required for the supply/return ductwork. See Figure 7 for T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E units or Figure 14 for T*C072-120A, TSC072-120B, Y*C072-120A, YSC072-120B, WSC060E, WSC072-120A, WSC072-090B :For convenience, it is suggested that the starting collars for the supply and return ductwork be installed before the curb is placed into Curb Installation for BAYCURB042AT*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E There are more attachment locations (raised triangular shaped corner slots) than actual component attachments; to assemble the roof curb, you will need a tape measure to assure components are in the correct orientation.

8 Locate the correct attachment slots for the internal supports using the dimensions from the diagram. the two (2) sides and two (2) ends on a flat surface to form a square, with the wood nailers facing the outside. Assembling a long duct support at this point will hold the sides in place while fastening ends. the sides and ends together with the 1/4x5/8 screws provided. a long ( ") duct support between the two sides: insert the first duct support inches from either end by inserting the tabs on each end of the duct support into the appropriate triangular shaped slots. See Figure 1, p. 5. For your convenience we have provided screws and screw holes for securing each duct support. Use one screw for each end of a long duct support. These screws are not necessary for strength or function, but are to prevent accidental disassembly during duct the other two long duct supports as shown.

9 See Figure 2, p. 5. Verify the " and " dimensions between long duct supports. See the position for the short duct support, " from the side, that fits between the first long duct support and the end. Insert the support flanges into the appropriate corner catches. Verify the " Figure 3, p. the second short duct support between the middle and left long duct supports. Verify the " dimension from the duct support to the side. See Figure 3, p. the three (3) insulation supports between the left end and the closest long duct support, being sure to insert the tabs into the slots in the top of the end piece. See Figure 3, p. Install insulation and gasket. See Figure 4, p. 5 and Figure 5, p. oneFigure twoFigure threeLong Duct SupportLong Duct SupportsShort Duct SupportInsulation SupportFigure fourFigure fiveBAYCURB042A6 ACC-SVN43A-ENInstallationBAYCURB042 AFigure Dimensional Data T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048 EFigure Dimensional Data T*C033-063A, TSC060B, TSC036E, 048E, 060E, Y*C033-063A, YSC060B, YSC036E, 048E, 060E, WSC036-060A , WSC060B, WSC036E, 048E 7 ACC-SVN43A-EN7 InstallationBAYCURB043 ARoof Curb Installation for BAYCURB043AT*C072-120A, TSC072-120B, Y*C072-120A, YSC072-120B, WSC060E, WSC072-120A, WSC072-090 BThere are more attachment locations (raised triangular shaped corner slots)

10 Than actual component attachments, so to assemble the roof curb, you will need a tape measure to assure components are in the correct orientation. Use the dimensions from the diagram to locate the correct attachment slots for the internal supports. the two (2) sides and two (2) ends on a flat surface to form a square, with the wood nailers facing the outside. See Figure 8, p. 8. Assembling a long duct support at this point will hold the sides in place while fastening ends. the sides and ends together with the 1/4x5/8 screws provided. a long ( ") duct support between the two sides (Return section): insert the first duct support inches from either end by inserting the tabs on each end of the duct support into the appropriate triangular shaped slots. See Figure 9, p. 8. For your convenience we have provided screws and screw holes for securing each duct support.