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TM 10-6640-233-10 g.    Vacuum  System.   The  vacuum  system  consists  of  the  vacuum  pump  and  associated  piping  and  valves.    The vacuum pump is located in the mechanical room and operates on 11 0V, 60Hz, single-phase power.  It has a free air capacity of 58 liters per minute and supplies vacuum where required.  Vacuum valves are color coded yellow and are located in the main laboratory work area. h.    Water  System.    The  water  system  consists  of  the  water  pump,  pressure  switch,  water  tank,  filter,  waste  water heater, water heater and associated piping and valves.  The water pump operates on 11 0V, 60Hz, single-phase power. It is controlled by the pressure switch.  It turns on when a water outlet is opened and off when the outlets are all closed. The water surge tank removes oscillations from the system while the water tank acts as the system supply source.  The water cooler operates on 11 OV, 60Hz, single-phase power.  The water heater operates on 11 0V, 60Hz, single-phase power.    The  system  may  be  supplied  with  water  from  an  outside  pressurized  source,  from  an  outside  unpressurized source, by using the system pump, or by its own water tank.  Water supply piping is color coded blue and valves are color  coded  green.    While  water  return  piping  and  valves  are  color  coded  white,  drain  piping  is  colored  black.    Water supply valves are located in the main laboratory work area.  Cold water is marked CW and color-coded green and hot water is marked HW and color-coded red. i. Drain System.   The drain system consists of valving and piping required to route condensate and waste water from the sink to the deck drains located underneath laboratory exterior. 1-20


 


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