Labconco WaterPr RO Systems 90750 Series - Manuel (Page 15)

Chapter 3: Getting Started
11
Original Instructions
Component Identification (Refer to Figure 2)
1. Control Panel. The control panel located on the left side of the unit contains the PC board.
2. ON/OFF Switch. The ON/OFF switch activates the display.
3. Pressure Gauge. The pressure gauge indicates the RO back pressure. The pressure is
preset to 150 psi. Do not increase or decrease the pressure.
4. Air Vent Filter. The air vent filter introduces bacteria-free air into the reservoir.
5. Inlet Valve. The inlet valve allows feed water to enter the system.
6. Conductivity Sensor. The conductivity sensor transmits conductivity readings of the
permeate (RO purified water) to the PC board.
7. Pressure Switch. The pressure switch shuts down the unit when the pressure in the system
reaches approximately 40 psi.
8. Rotary Vane Pump. The rotary vane pump boosts the pressure to the RO.
9. Low Pressure Switch. The low-pressure switch senses low inlet pressure and shuts off the
pump to prevent pump damage.
10. Flush Valve. The flush valve opens to flush the membrane and storage tank after 12 hours
of inactivity.
11. Dispensing Valve. Manual dispensing valve dispenses RO water when the valve is open
and automatic timed dispense when timed dispense selected.
12. Check Valve. The check valve installed in the RO housing prevents damage to the
membrane due to permeate backpressure.
13. Dispensing Outlet Port. This port allows for connection to the un-pressurize 17 L storage
tank. This RO water supply can be connected to other equipment such as a polishing station
or glassware washer that has it’s own internal pump.
14. Inlet Water Fitting. Connects to feed water supply.
15. Storage Tank. Provides storage for 17 liters of RO purified water.
16. Pump Motor. ¼ HP motor drives the rotary vane pump.
17. Float Switch. Turns unit off when 17-liter tank is full.
18. Storage Tank Cover. Removable to expose storage tank.
19. Back Pressure Relief Valve. Provides constant back-pressure across the membrane.
20. In line Strainer. Filters sediment from inlet water supply to protect system.
21. Inlet Pressure Gauge. Monitors feed water supply pressure. Inlet pressure should be
between 30 psi and 100 psi (2-7 bar).