RESIDENTIAL VZN
15
P/N 1011586 Rev A 07/20
®
Changing the Interval Setting
Caution
Changing the flush interval can cause the UltraFilter to plug
prematurely and may reduce the life of the filter. Consult the
factory for more information.
Though not recommended, the interval setting on the
Universal Pulse Controller can be changed. If the setting
must be changed, use the chart below. Press and hold the
corresponding button. After 5 seconds, the Button LED will
turn on. After 10 seconds, the Flush LED will also turn on.
Resetting the Timer Program
During the normal operation, the system will flush according
to the set interval. It is possible the system will flush at a time
of high water use. If this poses a problem, the controller can
be reset. Unplug the power supply, wait for 5 seconds, and
then plug the power supply in. When power is restored to the
controller, it will automatically enter Flush Mode. The controller
will then begin timing from the point when power is restored
based on the interval setting selected.
Flush
Interval
Button
Hold Time
Button
LED
Flush
LED
15 minutes
A
10 seconds
On
On
30 minutes
B
10 seconds
On
On
45 minutes
C
10 seconds
On
On
1 hour
A
5 seconds
On
Off
4 hour
B
5 seconds
On
Off
6 hours
C
5 seconds
On
Off
12 hours
D
5 seconds
On
Off
24 hours
D
10 seconds
On
On
Figure 8. Universal Pulse Controller
Semi-Annual Task
Check Permeate Tank Air Pre-Charge
It is recommended the permeate tank air charge be checked
every six months.
Caution
Air pre-charge should only be checked and adjusted under
zero system pressure. The system must be depressurized
before checking the tank pre-charge. DO NOT adjust the
tank air pre-charge with the system under pressure.
Caution
Be careful when adding air to the tank. DO NOT add too
much air pressure to the tank.
Tools and supplies required:
y
Air Pressure Gauge, 5-40 psi range (0.3-2.7 bar)
with tire valve (Schrader Valve) connection
y
Source of compressed air (manual
bicycle tire pump or air compressor)
1.
Refer to Figure 1. Depressurize the system by closing
the Inlet and Outlet Valves and opening the Rinse Valve.
Make sure the Permeate Tank is fully drained.
2.
Unscrew the protective cap from the air valve on the tank.
3.
Use the pressure gauge to check the tank pre-charge for
pressure.
NOTE:
If any water comes out the air valve, the tank
bladder has ruptured and the tank needs to be
replaced.
4.
The permeate tank should have a pressure of 28-31 PSI.
y
To add pressure to the permeate tank,
use a manual bicycle tire pump or
other source of compressed air.
y
To release pressure from the permeate tank,
press the center pin on the air inlet valve.
5.
Once the permeate tank is at 28-31 PSI, replace the
protective cap on the air valve.
6.
Pressurize system by closing the Rinse Valve and
opening the Inlet and Outlet Valves.
