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.r#ACPT Controller Manual <br /> Step 5: With the wire ties provided, strap each cable securely to <br /> the connector board. This relieves strain on the connections. <br /> Step 6: Apply UL-Classified pipe sealant to the threads of one of <br /> the threaded end caps and screw it into the housing. <br /> Step 7: Pull the connector board into the housing and place the <br /> desiccant packets along with it. <br /> Step 8: Apply UL-Classified pipe sealant to the threads of the <br /> remaining threaded end cap and screw it into the housing. <br /> Step 9: Tighten the compression fittings around the cables to <br /> ensure that moisture does not enter the connector housing. <br /> Programming forStand-alone or Tandem Operation <br /> Stand-alone. The CPT is pre-programmed at the factory for stand- <br /> alone operation. For setup of a single CPT pump for stand-alone <br /> operation, see "Setting the DIP Switches for Stand-alone or Tandem <br /> Operation." <br /> Follow the instructions in the previous sections called "Running and <br /> Attaching the Input Power," "Running and Attaching the Dispenser j <br /> Input," and "Running and Attaching the Output Power" Then, install <br /> the intrinsic safety barrier, following the instructions in the <br /> appropriate section under"Installing the Intrinsic Safety Barrier and <br /> Pressure Transducer." <br /> Tandem. When two CPT pumps are installed to operate in tandem, <br /> you must program their controllers for tandem operation. You must <br /> first decide which CPT will be the master controller. The master <br /> controller has the dispense-enable wiring running to it and has <br /> primary control over the order in which the pumps respond to a <br /> dispense-enable signal. You should program the other controller as <br /> the auxiliary. <br /> If you are running two CPT units in tandem, follow these <br /> instructions. <br /> Chapter 3: Installation 3-18 ARE260-240 Rev.A ♦ 6/97 <br />