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.
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.