8
4. Turn the valves to the open position and let the water flow.
5. Open all faucets, fixtures and appliances in turn until you can easily smell
chlorine. This includes outside faucets, laundry machines, showerheads and
any device or appliance attached to the plumbing system. Close the fixtures and
let the system sit for 4 hours.
Do not use or consume system water during
this process.
6. Close the valves on the UV system. Re-install the pre-filter. Open the valves
and flush all fixtures and lines thoroughly.
The introduction of a chlorine disinfectant to a hot water heater that has been
used with untreated water or water with excessive amounts of iron,
manganese or other organic materials may lead to the oxidation of these
particulates. If you feel that these conditions may apply to your installation,
a thorough flushing of the hot water tank after the disinfection should be
undertaken to eliminate the oxidized material from the system.
Consider
replacing an aged hot water tank at this time.
UV POWER SOURCE (BALLAST)
The microprocessor controlled power source supplied with your Excelight NX
System has a visual alarm to indicate lamp operation/failure and a cumulative
system operation timer. The unit is available with an optional shutoff solenoid
which will activate when there is an alarm, turning off the water until the alarm is
corrected.
The LCD display shows the actual current UV dosage (AV: XX.X mj/cm
2)
, the
cumulative operation hours (AT: XXXX) of the lamp, and Lamp status (Lamp On
or Lamp Fault).
If the actual UV intensity falls under 40mj/cm
2
, the unit goes into the low UV alarm
mode, a red will flash on the controller and the optional solenoid valve, if installed,
will close.
UV Power Source Initialization Sequence
1. Plug in the UV power source
2. Press the on/off button
3. The unit will turn on and the display will light.
a. Initially the display will read Lamp Fault.
b. After 3-5 seconds, this will change to Lamp ON. Additionally, the UV
dosage will start to climb and as it does the intensity LED indicator
lights will change from
Red - Yellow - Green
c. The
Red
LED indicates the UV output is less than mj/cm
2
a
Yellow
LED indicates the UV dosage is ranged from 40 to 50 mj/cm
2
, and a
Green
LED indicates the UV dosage is greater than 50mj/cm
2
.
d. If a solenoid valve is connected to the UV power source, it will open
when the UV level reaches 40mj/cm
2
.
Normal Operation:
During normal operation, the
Green
LED is illuminated. If the unit sits for a long
period of time it is normal for the
Yellow
LED to illuminate as the water temperature
