RiggingandAssemblyInstructions forCrossflowCoolingTowers

1 Rigging and Assembly Instructions for Crossflow cooling towers INTRODUCTION. FXT, Series 1500 and 3000 cooling towers should be rigged and assembled as outlined in this bulletin. These procedures should be thoroughly reviewed prior to the actual rigging and assembly of the equipment to acquaint all personnel with procedures to be followed and to assure that all necessary equipment will be available beforehand. Be sure to have a copy of the certified drawing available for reference. If you do not have a copy of this drawing, or if you need additional information about this unit, contact your local BAC Representative whose name and telephone number are on a label adjacent to the access door.

2 The model number and serial number of the unit are also located in this area. Shipping BAC cooling towers are factory assembled to assure uniform quality and minimum field assembly. For the dimensions and weights of a specific unit or section, refer to the certified drawings. Table 1: Shipping Product Line Models that ship in one section Models that ship in two sections All single cells ship All multi-cell FXT fully assembled FXT-230, 260 thru FXT-514. FXT-6 thru FXT-257. Due to shipping height restrictions 15146 thru 15177, Series 1500 15200, 15227 thru 15282, and 15201 and 15219. 15296 thru 15425. Due to shipping height restrictions 3240C thru 3672C and Series 3000 3728C thru 31056C and 3583C thru 3725C.

3 31132C thru 31301C. R244/1-OI. 1. Check Unit Before Rigging When the unit is delivered to the jobsite, it should be checked thoroughly to ensure all required items have been received and are free of any shipping damage prior to signing the bill of lading. The following parts should be inspected: Sheaves and Belts Bearings Bearing Supports Fan Motor(s). Fan(s) and Fan Shaft(s). Float Valve Assembly(s). Water Distribution System Hot Water Basin Integral Strainer (Series 1500). Fill Cold Water Basin Strainer(s). Interior Surfaces Exterior Surfaces Optional EASY CONNECT Piping Arrangement (Series 3000). Louvers Air Inlet Screens or Combined Inlet Shields (when provided). Miscellaneous Items: All bolts, nuts, washers, and sealer tape required to assemble sections or component parts are furnished by BAC.

4 And shipped with the unit. A checklist inside the envelope attached to the side of the unit marked Contractor's Installation Instructions indicates what miscellaneous parts are included with the shipment and where they are packed. Unit Weights Before rigging any unit, the weight of each section should be verified from the unit certified drawing. Some accessories add additional weight as shown on the respective accessory drawings. WARNING: Before an actual lift is undertaken, ensure that no water, snow, ice, or debris has collected in the basin or elsewhere in the unit. Such accumulations will add substantially to the equipment's lifting weight. WARNING: In the event of extended lifts or where hazards exist, the lifting devices should be used in conjunction with safety slings placed under the unit.

5 Anchoring 7/8 diameter holes for Series 3000 and Series 1500, and 5/8 diameter holes for FXT cooling towers are provided in the bottom flange of the basin section for bolting the unit to the support beams. Refer to the suggested support location drawing included in the submittal for location and quantity of the mounting holes. The unit must be level for proper operation. Anchor bolts must be provided by others. Safety Adequate precautions appropriate for the installation and location of these products should be taken to safeguard the equipment and the premises from damage and the public from possible injury. WARNING: When the fan speed of the unit is to be changed from the factory set speed, including the use of a variable speed device, steps must be taken to avoid operating at or near the fan's critical speed which could result in fan failure and possible injury or damage.

6 Consult with your local BAC Representative on any such applications. WARNING: Only personnel qualified to do so should undertake operation, maintenance and repair of this equipment. Proper care, procedures and tools must be used in handling, lifting, installing, operating, maintaining and repairing this equipment to prevent personal injury and/or property damage. 2. Freeze Protection These products must be protected by mechanical and operational methods against damage and/or reduced effec- tiveness due to possible freeze-up. Please refer to the Product and Applications Handbook, Operation and Maintenance Manual, or contact your local BAC Representative for recommended protection alternatives.

7 Location All evaporative cooling equipment must be located to ensure an adequate supply of fresh air to the fans. When units are located adjacent to walls or in enclosures, care must be taken to ensure the warm, saturated, discharge air is not deflected and short-circuited back to the air intakes. CAUTION: Each unit must be located and positioned to prevent the introduction of discharge air into the ventilation systems of the building on which the unit is located and of adjacent buildings. For detailed recommendations on BAC equipment layout, see our website at or contact your local BAC Representative. Warranties Please refer to the Limitation of Warranties applicable to and in effect at the time of the sale/purchase of these products.

8 RIGGING. Refer to Table 2 and Figures 1 through 6 for the recommended minimum size of the spreader bar and the recommended vertical dimension H from the lifting device at the base of each unit or section to the spreader bar. In the event of extended lifts or where hazards exist, the lifting devices should be used in conjunction with safety slings placed under the unit. Table 2: Dimensions (for each cell). Model Number Section Min. H Min. W. 6 to 4 7 1-Section 6' N/A. Figure 4 Figure 3 Figures 1 & 2. 5 8 to 9 5 1-Section 8' N/A. FXT. 1 1 5 to 2 5 7 1-Section 12' N/A. 2 6 0 to 5 1 4 2-Section 15146 to 15177, 15201, 1-Section 12' W 1=12'. 15219. 1500. Upper 15' W2=6', W3=12'. 15200,15227 to 15282.

9 Lower 8' W 1=12'. Upper 17' W2=6', W3=12'. 1 5 2 9 6 to 1 5 4 2 5. Lower 11' W 1=12'. 3 2 4 0 C to 3 3 7 9 C 1-Section 15' 8' 6 . 3 4 1 2 C to 3 5 2 7 C 1-Section 17' 10'. Figure 5. 3473C to 3501C, 3552C. 1-Section 18' 12'. 3604C , 3648C , 3672C. 3583C, 3618C, 1-Section 20' 14'. 3676C, 3725C. Upper 18' 12'. 3 7 2 8 C to 3 8 2 8 C. 3000. Lower 18' 12'. Upper 18' 12'. 3 8 7 2 C to 3 9 7 0 C. Lower 18' 12'. Figure 6. Upper 18' 12'. 3 9 8 5 C to 3 1 0 5 6 C. Lower 18' 12'. Upper 20' 14'. 31132C. Lower 20' 14'. Upper 20' 14'. 3 1 2 1 3 C to 3 1 3 0 1 C. Lower 20' 14'. 3. Figure 1 shows the proper rigging of an FXT cooling Tower for installation. FXT cooling towers may be hoisted short distances by using the lifting devices provided at the top of each unit as shown in Figure 2.

10 LIFTING CABLES. LIFTING DEVICES. SPREADER BARS. H. SAFETY SLINGS FIGURE 1. FIGURE 2. Figures 1 and 2. 4. Figure 3 shows the proper rigging of one-section Series 1500 cooling towers , and Figure 4 shows the same for units that ship in two-sections. W1. LIFTING CABLE. H. W1. LIFTING CABLE. LIFTING DEVICE. SAFETY SLINGS. H. Figure 3: One-Section Cells Series 1500 Models 15146 to 15177, 15201, & 15219. W3 LIFTING DEVICE. LIFTING DEVICE. W2 LIFTING CABLE. SAFETY SLINGS. W1. H. W3 LIFTING DEVICE. W2 LIFTING CABLE. W1. H. H. SAFETY SLINGS. UPPER SECTION. H. LOWER SECTION. SAFETY SLINGS. UPPER SECTION. LOWER SECTION. Figure 4: Two-Section Cells Series 1500 Models 15200, 15227 to 15425. 5. Figure 5 shows the proper rigging of either a Series 3000 that ships in one-section or the top section of a Series 3000 that ships in two-sections.