2-2. ROWPU CONTROLS AND INDICATORS
The following paragraphs describe controls and indicators used to operate the ROWPU.
Product Water Meter. Refer to figure 2-4. The product water meter (2) is located on the floor of the
ROWPU frame (4) directly behind the booster pump (3).
A lid (1) protects the face of the meter from
damage. This water meter is used to indicate the total number of gallons, in tenths of a gallon, of product
water the unit has produced. The number of gallons is read directly from the numerals in the small window
and the tenths of gallons from the position of the needle on the dial face.
One revolution of dial equals 10 gallons of product water produced.
The meter registers as follows:
After one revolution,a total of 10 gallons are produced and the meter will register as follows:
After two revolutions:
After 10 revolutions:
Control Panel. The control panel consists of various gages, valves, lights, switches, and hose
connections as shown in figure 2-5, sheet 1. Their functions are described in table 2-1 (Items 1
Control Box. The control box consists of the pump control switches and indicator lamps as shown in
figure 2-5, sheet 2. Their functions are described in table 2-1 (Items 25 thru 44).
Circuit Breaker Panel. The circuit breaker panel is located in the junction box and consists of circuit
breakers for the pumps, utility outlets and backwash timer as shown in figure 2-5, sheet
3. Their functions are described in table 2-1 (Items 45 through 53).