Hobart RO-150 Water Dispenser User Manual


 
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COMPONENT FUNCTION
Inlet Connection Tee ............ Splits water supply into two paths. One path goes to the beginning of the
RO system, the other goes to the bypass ball valve.
Inlet Ball Valve ................. Controls inlet water to the RO system. Valve is to be either fully open or
closed. Valve is open during normal operation.
Outlet Ball Valve................ Controls outlet RO product water feeding connected equipment. Valve is
to be either fully open or closed. Valve is open during normal operation.
Sampling Ball Valve ............. 1/4" valve that allows sampling water feeding equipment for testing
purposes. Valve is closed during normal operation.
Bypass Ball Valve............... This valve is placed in the untreated water supply line parallel with the
filtration system and is used to bypass the filtration system when servicing
or maintaining the RO system.
Storage Tank Ball Valve .......... Used to shut the product water off at the storage tank when servicing the
system.
Check Valve ................... One-way check valve allows water to flow in one direction. Three check
valves are incorporated into the system, one prevents untreated water
from entering the product water storage tank, another prevents RO
product water loss through the inlet water supply and the third is
connected to the RO housing product water output.
Solenoid Valve ................. Controls water flow into the RO membrane. The solenoid closes when the
storage tank is full and whenever power is removed from the system.
High Pressure Switch............ Connected in the line that feeds product water to the storage tank, the
high pressure switch shuts down the booster pump and solenoid once the
storage tank is full.
Product Water Storage Tank ...... Twenty gallon storage tank charged with 12-15 psi air pressure when
empty. Stores approximately 13 gallons of RO product water for on-
demand use.
Drain Flow Controller ............ Controls (slows) the rate reject water flows to the drain causing pressure
to build on inlet side of RO membrane. The pressure rise increases RO
product water quality and quantity.
Permeate Pump ................ Pump that directs permeate (product) water to the storage tank or
equipment. Also pumps reject water to an unrestricted drain.
Booster Pump.................. Boosts the water pressure after inlet water passes through the sediment
filter. Increased pressure produces higher product water quantities.
5 Micron Filter.................. Sediment filter. Inlet water first enters this filter for fine particle filtration
then enters into the booster pump.
Carbon Block Filter .............. Middle filter. Removes majority of chlorine from water supply. Chlorine will
damage the RO membrane if it is not removed.
Carbon Block-SS Filter ........... Second carbon filter. Removes remaining chlorine and contains the
ScaleStick product to reduce minerals and extend RO membrane life.
RO Membrane ................. The reverse osmosis membrane allows only water to pass thru the
membrane and rejects 95-98% dissolved solids. As water flows thru the
membrane, it splits into two streams, the permeate (product) water stream
and the reject water stream.
Neutralizing Cartridge............ Mounted in the filtration after the storage tank. The cartridge contains
crushed limestone to add some mineral content (between 10-20mg/l) back
into the RO product water stream and adjusts the pH of the water close to
neutral (7.0 pH).