I-963
Page 4 of 6
Rev. E-37870 5/17/12
Operation
The operation of this unit is simple. Once all the correct tubing is in place, simply rotate the correct
ball valve knob to the “on” position and let the chemical/water solution fill the sink to the desired
level. Now rotate the ball valve fully into the “off” position.
Troubleshooting
Symptom
Probable Cause
Remedy
Proportioner fails to draw
chemical properly.
1.
Insufficient water supply pressure.
2.
Foot valve has dirt/chemical
build-up.
3.
Proportioner metering tip clogged
with dried chemical.
4.
Mineral deposits are located on
Air Gap nozzle.
5.
Valve not rotated in fully open
position.
1.
20 PSI is the minimum allowable pressure. Seek
Plumber if necessary to increase water pressure.
2.
Soak in hot water to clean.
3.
Soak in hot water to clean interior passages.
4.
Soak nozzle and inlet screen in hot water or
product such as CLR to clean mineral deposits.
5.
Always turn knob in fully opened positions.
“Air Gap” Proportioner is
dripping or spraying a mist
(fan pattern) of water.
1.
Mineral deposits are located on
Air Gap nozzle.
1.
Soak nozzle and inlet screen in hot water or
product such as CLR to clean mineral deposits.
Water valve is not shutting
off completely.
1.
Ball valve not closed.
2.
Ball valve has internal leakage.
1.
Always turn knob clockwise to fully closed
position.
2.
Replace ball valve
Threaded connections are
leaking water.
1.
The connection between the sink
dispenser and water supply line is
too loose or rubber washer is
missing.
2.
Backflow prevention devices
and/or proportioners are too loose.
1.
Shut water supply off first. Carefully tighten the
female hose coupling on the sink dispenser to
the inlet water supply line. Do not overtighten.
2.
Tighten loose connection(s) with tools if
necessary. Do not overtighten if using tools.
Proportioner continues to
draw chemical after water
valve is closed.
1.
Concentrated chemical is
positioned higher than the
proportioner.
1.
Move the concentrated chemical so it is lower
than the proportioner.
Parts List (See pages 4-5)
COVER, MOUNTING BRACKETS, AND HARDWARE
NO. PART NO.
DESCRIPTION
1
65-38-1
Cover, Dual Valve (Stainless Steel)
2
65-37-1
Bracket, Valve Retaining (Stainless Steel)
3
60-67-1
#8 X ½” Lg. Screw (Type B)
4
65-36-1
Bracket, Wall Mounting (Stainless Steel)
