TM 5-6115-590-12Figure 2-16(2). Operation to Deliver Heated Air (Sheet 2 of 3). (TS 6115-590-12/2-162)b. When operating in temperatures below freezing,connect electrical connectors on supply and drainwater hose assembly and dual water hoseassembly to water line heater connectors on powerplant receptacle panel. Connect water recirculatinghose assembly to connectors on shelter. Ifoperation of the power plant is to be discontinuedfor more than 15 minutes during extreme coldconditions, drain and dry the water system asdescribed in paragraph 4-4a (3).c. Keep batteries fully charged at all times.CAUTIONOperate the power plant for at least 1 hour afteradding water to batteries. Water added to batteriesmay freeze unless. It is immediately mixed withelectrolyte. Remove frozen batteries from thepower plant immediately upon discovery to avoiddamage caused by leaking from cracked caseswhen the battery thaws.d. For efficient starting and operation in ambienttemperature below -25°F, a winterization kit mustbe installed that contains nickel-cadmium batteriesand the following procedures must be observed.NOTEFor Operation Below -25 F Ambient use LubricatingOil Per MIL-L-7808. Flush System whenWinterization Kit is Installed or Removed.(1) Check that the turbine and heater batteryactivation circuit breakers, located on thereceptacle panel, are pulled out prior to connectingthe batteries.Change 52-23
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