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

PAGE 2
NEVER REMOVE OR REPLACE ANY PART ON EDV WHILE
IT IS PRESSURIZED. CLOSE INTEGRAL BALL VALVE
AND DEPRESSURIZE DRAIN LINE USING EDV TEST
INSTALLATION
Relieve and lock out all pressure from drain line.
Clean existing drain line of any pipe scale, weld spatter and
accumulated debris.
1.
2.
To verify valve operation, or to manually discharge fluid,
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 in the drain line. (Reference Figure 2).
From the vertical tee outlet, install a manual drain valve to allow
the system to be drained during EDV servicing.
On the horizontal tee outlet, install the EDV drain valve.
Reference flow direction arrows on side of valve body.
3.
4.
5.
6.
7.
8.
9.
WARNING
UNIT TO BE DRAINED
TO DRAIN
TO DRAIN
MANUAL
DRAIN
BALL VALVE
TEE
FIGURE 2 RECOMMENDED INSTALLATION
CAUTION
IF THE EDV IS INSTALLED BACKWARDS, IT WILL NOT
WORK.
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
The integral strainer must be cleaned periodically to
ensure proper valve performance. The time between cleanings
will vary depending operating conditions. Remove cap to access
screen for cleaning. (Reference Figure 2).
REQUIRED MAINTENANCE
TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Check electrical connections. Make sure that the drain valve is not installed
on a switched power supply line.
Replace timer assembly.
EDV drain valve has a 230 PSIG maximum working pressure.
Clean or replace valve.
Verify proper flow direction.
Replace timer assembly.
Replace valve.
Power 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.
Valve malfunction.
Valve not operating
("POWER ON" light
is off)
Valve not operating
("POWER ON" light
is on)
REPLACEMENT
TIMER
VALVE
POWER CORD
EDV-115
39-10511
291-00017
500-00002
REPLACEMENT PARTS
2950 Mechanic Street
Lake City, PA 16423 USA
Phone: 800/840-9906
Fax: 814/774-3482
www.vanairsystems.com
Close the manual and integral ball valves.
Adjust timer knobs to desired settings (Reference Timer
Adjustment Section).
Wire or plug the valve into the appropriate grounded power
supply. The "POWER ON" light should now be illuminated.
Open the integral ball valve. The EDV is now in service.
CAP
SCREEN
EDV
EDV-230
39-10512
291-00018
500-00003 EDV-12DC
39-10513
291-00019
500-00002