2-36 888-2629-200 10/6/10WARNING: Disconnect primary power prior to servicing.Section 2 Installation Maxiva ULX COFDM Series2.11.1 Heat Exchanger & Pump ModuleStart-up and MaintenanceThe electrical installation should have already been completed and should be inaccordance with the National Electrical Code and any local codes and regulations. Theincoming power supply can be 208 to 240V-3Ph-50 or 60Hz, or 380 to 415V-3Ph-50 or60Hz. Exact line voltage and configuration should be specified at the time the order isplaced. Fan and pump motors are three phase and have current overload protection.Overload protection for the motors is achieved via current limiters in the electricalcontrol panel.Prior to start-up, each fan motor should be checked for freedom of movement and thatthe fan blade is securely fastened to its fan motor shaft. All motors have beensynchronized at the factory. Pump and fan direction of rotation must be checked at theinitial power up of the pump module and heat exchanger. Verification of pump and fanrotation is outlined in "Section 2.11.1.1” on page 2-38.! CAUTION:INCORRECT (REVERSE) ROTATION OF THE PUMPS OR FANS WILL CAUSE POORCOOLANT OR AIR FLOW AND DAMAGE TO THE PUMPS. CORRECT PUMP OR FANROTATION BY SWITCHING ANY TWO INCOMING AC PHASES. DO NOT ALTER ANYPANEL WIRING TO CHANGE PUMP OR FAN DIRECTIONFans and motors are direct connected. Motors are permanently lubricated for the life ofthe motor. Use compressed air (low pressure) to clear dust and debris from the coil. Finmaterial is sensitive; DO NOT WIRE BRUSH! Mild cleaning solution or low pressuresteam cleaning may be used to clean the unit.All pumps have maintenance-free pump seals.NOTE:Job site environmental conditions should be evaluated periodically to assure coiland component life expectancy. Schedule maintenance activities to accommodatechanging environmental conditions at the site.STEP 1 Turn the AC mains to the transmitter cabinets and pump moduleOFF at the main breaker or fuse box. Also turn off the isolatorswitches at the front of the cooling control panel and on the heatexchanger.
