Watts Pure Water PWR4021 Series, Инструкция по установке, эксплуатации и обслуживанию

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5
II. Controls, Indicators, and
Components
(See Figure 1)
A. Controller - Controls the operation of the system and displays
the product water quality.
B. Reject Control Valve - Controls the amount of reject flow.
C. Reject Recycle Control Valve – Controls the amount of reject
recycle flow.
D. Pump Discharge Valve - Used to throttle the pump.
E. Prefilter Pressure Gauges - Indicates the inlet and outlet pres-
sure of the prefilter. The difference between these two gauges is
the prefilter differential pressure.
F. Pump Discharge Pressure Gauge - Indicates the pump dis-
charge pressure.
G. Reject Pressure Gauge - Indicates the reject pressure.
H. Reject Flow Meter - Indicates the reject flow rate in gallons per
minute (gpm).
I. Product Flow Meter - Indicates the product flow rate in gallons
per minute (gpm).
J. Reject Recycle Flow Meter – Indicates the reject recycle flow
rate in gallons per minute (gpm).
K. Prefilter Housing - Contains the RO prefilter.
L. Automatic Inlet Valve - Opens when pump is on and closes
when the pump is off.
M. Low Pressure Switch - Sends a signal to the controller if the
pump suction pressure is low.
N. RO Feed Pump - Pressurizes the RO feed water.
O. RO Membrane Vessels - Contains the RO membranes.
Figure 1. General System Component Identification