ELECTRIC DRAIN VALVE - OPERATION AND MAINTENANCE
PRODUCT DESCRIPTION
The Electric Drain Valve removes condensed water and
oil from the air receiver tank�� Additional drains may
be installed throughout your compressed air system,
including aftercoolers, filters, drip legs and dryers��
The Electric Drain Valve operates on a timer which can be
set to automatically drain the air receiver tank at operator
determined intervals��
Key features include:
•
100% continuous duty
•
NEMA 4 enclosure
•
Adjustable time on (0��5 – 10 seconds)
•
Adjustable time off (0��5 – 45 minutes)
•
Stainless steel operator
•
LED to indicate electrical power is on
•
LED to indicate valve is open
•
Manual override
OPERATION
1�� Open the strainer ball valve��
Strainer Ball Valve
OPEN
Figure 2
2�� Set the "time off" and "time on" knobs�� See TIMER SET-
TINGS (below) for an explanation of the settings��
3�� During compressor operation, check for air leaks��
TIMER SETTINGS
The "time off" setting determines the interval between
cycles from 30 seconds to 45 minutes�� The "time on"
setting determines the actual time the compressor drains
condensate��
The timer's cycle rate and drain opening time should
be adjusted to open just long enough to discharge the
condensate�� The timer is properly set when it opens
and discharges condensate and then vents air for
approximately one second before closing�� Adjustments
may be made depending on many factors, including
humidity and duty cycle��
8
RELEASED 20/Jul/2016 17:56:55 GMT
Periodically clean the screen inside the valve to keep
the drain functioning at maximum capacity�� To do this,
perform the following steps:
CLOSED
TROUBLESHOOTING
TROUBLE
CAUSE
Valve will not
Debris in solenoid
close��
valve prevents
diaphragm from
seating��
Short in electrical
component��
Timer will not
No electrical
activate��
supply��
Timer malfunc-
tion��
Clogged port��
Solenoid valve
malfunction��
Clogged strainer��
MAINTENANCE
1��
Close the strainer ball valve completely to isolate it
from the air receiver tank��
2��
Press the TEST button on the timer to vent the
pressure remaining in the valve�� Repeat until all
pressure is removed��
CAUTION
High pressure air can cause injury from flying
debris�� Ensure the strainer ball valve is completely
closed and pressure is released from the valve prior
to cleaning��
1��
Remove the plug from the strainer with a suitable
wrench�� If you hear air escaping from the cleaning
port, STOP IMMEDIATELY and repeat steps 1 and 2��
2��
Remove the stainless steel filter screen and clean it��
Remove any debris that may be in the strainer body
before replacing the filter screen��
3��
Replace plug and tighten with wrench��
4��
When putting the Electric Drain Valve back into
service, press the TEST button to confirm proper
function��
ACTION
Remove solenoid
valve, disassemble,
clean and
reassemble��
Check and replace
power cord or
timer as needed��
Apply power��
Replace timer��
Clean valve��
Replace solenoid
valve��
Clean strainer��
80448418 Rev.C