Van Air Systems EDV-115-PA - Manual (Page 2)

PAGE 2
INSTALLATION
Relieve and lock out all pressure from drain line.
Clean existing drain line of any pipe scale, weld spatter or
accumulated debris. 1.
2.
To verify valve operation, or to manually discharge fl uid,
turn the "CLOSED TIME" knob counter clockwise until it stops in
the area labeled "TEST". The valve will open for the set "OPEN
TIME". After the valve closes, it will automatically repeat the test in
2 seconds unless the "CLOSED TIME" knob is reset to its regular
position.
TEST FUNCTION
Install a tee onto the drain line. (Reference Figure 2).
From the vertical tee outlet, install a manual drain ball valve.
This valve will allow the system to be drained during EDV-
115-PA servicing.
On the horizontal tee outlet, install an isolation ball valve,
union and y-strainer.
The y-strainer will prevent pipe scale,
weld spatter or accumulated debris from hindering the proper
function of the EDV-115-PA drain valve.
Check EDV-115-PA valve body for fl ow direction arrows and
connect the valve in accordance with the arrows. (Note: To
ensure optimum performance, install EDV-115-PA drain valve
in a horizontal position.)
3.
4.
5.
6.
UNIT TO BE DRAINED
(FILTER SHOWN AS
EXAMPLE)
EDV-115-PA
DRAIN VALVE
Y-STRAINER
TO DRAIN
SOURCE
TO DRAIN
SOURCE
UNION
ISOLATION BALL
VALVE
MANUAL
DRAIN
BALL VALVE
TEE
FIGURE 2 RECOMMENDED INSTALLATION
CAUTION
IF THE EDV-115-PA IS INSTALLED BACKWARDS, IT WILL
NOT WORK.
Close the manual and isolation ball valves.
Adjust timer knobs to desired settings (Reference Timer
Adjustment Section).
Wire or plug the valve into an appropriate grounded power
supply. The "POWER ON" light should now be illuminated.
Open the isolation ball valve. Your EDV-115-PA drain valve is
now ready for operation.
Refer to Figure 3 for estimated discharge capacity. The chart
lists the valve discharge capacity at various pressures.
Set the valve open time & valve closed time control knobs to
conform to the desired draining schedule. Note that the "VALVE
OPEN" light is illuminated whenever the valve is open.
TIMER ADJUSTMENT
1.
2.
The EDV-115-PA drain valve must be cleaned periodically
to prevent malfunctions. In general, the time between cleanings will
vary depending on the discharge medium and operating conditions.
Leakage, sluggish operation and/or excessive noise (hissing) are
clear indications that the valve should be serviced. (NOTE: Noise
associated with air exhausting during valve open time is normal.)
REQUIRED MAINTENANCE
7.
8.
9.
10.
TROUBLE SHOOTING
PROBLEM SOLUTION
Check electrical connections. Make sure that the drain valve is not
installed on a switched power supply line.
Replace timer assembly.
Install an EDV-115-PA with suitable maximum working pressure.
Clean or replace solenoid valve.
Verify proper fl ow direction. Repipe valve if necessary.
Replace timer assembly.
Replace solenoid valve.
Clean or replace solenoid valve.
Verify proper fl ow direction. Repipe valve if necessary.
Install an EDV-115-PA with suitable maximum working pressure.
Clean or replace solenoid valve.
Replace solenoid valve.
Power supply to valve turned off
or interrupted.
Printed circuit board malfunction.
Excessive drain line pressure.
Valve plugged with debris.
Valve installed backwards.
Printed circuit board malfunction.
Coil malfunction.
Dirty and/or corroded valve.
Valve installed backwards.
Excessive drain line pressure.
Dirty and/or corroded valve.
Defective valve body.
Valve not operating
("POWER ON" light
is off)
Valve not operating
("POWER ON" light
is on)
Valve draining
irregularly (Spitting
and sputtering)
Valve draining con-
tinually or leaking
PRESSURE (PSIG)
GALLONS PER MIN-
100
27.6
150
34.2
200
38.4
250
43.2
300
46.8
FIGURE 3 DISCHARGE CAPACITY
50
19.2
NEVER REMOVE OR REPLACE ANY PART ON EDV-115-
PA OR THE STRAINER WHILE THEY ARE PRESSURIZED.
CLOSE BALL VALVE AND DEPRESSURIZE DRAIN LINE
USING EDV-115-PA TEST FUNCTION.
WARNING
REPLACEMENT
TIMER KIT
VALVE 115V
POWER CORD 115V
1/2" Y-STRAINER
39-10514
291-00003
500-00002
39-10022
REPLACEMENT PARTS & ACCESSORIES
POSSIBLE CAUSE