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5112 Position the cone stand provided in the desired location on a properly designed concrete pad <br /> Stand mounting holes have been provided to secure the structure as required depending upon the <br /> tank application (Consult site engineer for anchoring requirements) Position the tank in the <br /> stand and complete the tank installation as necessary <br /> 512 CONE BOTTOM TANK STAND EXTENSIONS <br /> 5121 Cone bottom tank stand extensions are designed specifically for use with Sll cone bottom tank <br /> stands Cone bottom tank stands equipped with extensions are not approved for seismic restraint <br /> applications The extensions are provided in 20"and 40"welded units and are used to increase cone <br /> bottom tank clearance 20"or 400 <br /> 5122 install the extensions onto the cone stand legs with the bolt assemblies provided Tighten bolts to <br /> 300 ft-Ibs of torque With the extensions in place, proceed with the cone stand installation as <br /> previously described <br /> 513 HEATED TANKS <br /> 5131 Heated tanks are insulated with a minimum of 2'of 2-3 IbJft 3 polyurethane foam material with an <br /> "R"valve of 8 33/in The Insulation is sealed with 2 coats of acrylic latex mastic. Although this <br /> appears to be a tough, resilient covering, it can be easily torn or broken if the tank is not properly <br /> transported Use only carpeted and padded equipment to trove an insulated tank. Do not <br /> allow the tank,to drop or roll on rough surface as this may damage the insulation <br /> 5132 Heated tanks are equipped with at least 1 control box with maintenance temperature and <br /> over-limit temperature settings The maintenance temperature setting should beset at the <br /> desired maintenance temperature The over-limit temperature setting should be adjusted to <br /> 10 degrees above the desired maintenance temperature The maximum temperature the over- <br /> limit control should be set to is 140° F for crosslinked polyethylene tanks and 130°F for high <br /> density linear polyethylene tanks Be sure to check tank material type and design before setting <br /> any control temperatures over 100° F It is best to keep the tank at the lowest temperature <br /> necessary to accomplish the desired objective The Figure 5 11 on the next page shows a <br /> standard 110 VAC control box front cover with the control functions shown This control box has <br /> calibration functions for the temperature probes The control box Is factory calibrated and should <br /> not need recalibrated If there are any questions about control box calibration,consult the factory. <br /> Figure 512 shows a schematic of the terminal connections possible located under the control box <br /> front cover The terminals available for customer connection are line in,over-limit alarm relay, <br /> and low-limit alarm relay There are other control boxes available with different functions not <br /> detailed in these instructions. Please consult the factory with questions regarding other types of <br /> control boxes available Refer to the control box instructions and schematics sent with each tank <br /> for further details. <br /> I <br /> i <br /> 29 <br />