DISINFECTION PROCEDURE
Before service begins, all household plumbing lines should be disinfected to prevent the possibility of re-contamination after UV
disinfection. You should also disinfect your plumbing system if the power goes out for several hours or more or if the unit has
been accidentally shut-off for several hours or more. It is advisable to disinfect the plumbing lines at least once a year.
The following is a general method for disinfection of plumbing lines. If you are uncertain about the efficacy of this
procedure you are advised to contact your local health authority responsible for water safety.
1. Shut off the supply valve and de-pressurise the lines by opening a tap until it runs dry.
2. Remove the filter in the filter housing and add about 1-2 cups (250-500ml) of unscented household bleach (5 to 6% sodium
hypochlorite) to the empty filter housing and put it back on the filter head.
3. Open the supply valve and slowly open a faucet and let the water run until you can smell the chlorine and then shut the
faucet off. Repeat the procedure for all hot and cold outlets in the house. Add more bleach as required. Run hot faucets
longer to allow the chlorine to come through the hot water tank.
4. Leave the bleach solution in the plumbing system for about 6 to 8 hours preferably overnight.
5. Take off aerators (if any) on the faucets and thoroughly flush all outlets until the chlorine smell is minimal.
6. Shut-off the supply valve againand open a faucet to deppresurize the system. Open the filter housing and re-install the filter
cartridge.
7. Open the supply valve slowly. You are ready to use the water now.
UV BALLAST FEATURES
The micro-processor controlled electronic UV ballast supplied with your Rainfresh UV system has both audio and visual alarm
indicators to indicate the lamp operation and an integral annual lamp change reminder timer.
UV Power Source Initialization Sequence:
When AC power is applied to the UV ballast, the lamp is ignited as indicated by the
green lamp-ON LED and alarm buzzer consisting of three buzzer beeps and three red timer LED flashes.
NOTE :
If a solenoid is connected to the UV it will activate on completion of the self-test sequence.
Normal Operation:
During normal operation only the green lamp-ON LED is illuminated.
Lamp-Change Timer Operation:
At the end of one year, the red lamp-change timer LED will flash and the buzzer will sound
indicating that the timer is in a
28-day grace period
. You can silence the buzzer for seven days by pushing the timer button,
but the LED will continue to flash. At the end of the 28-day period, the red timer LED illuminates continuously and the buzzer
sounds. Pressing the timer button at this point will not silence the buzzer until the lamp is replaced.
The UV lamp is not shut
down in this alarm mode and the solenoid valve (if connected) is not closed.
Re-Setting the Lamp-Change Timer:
The lamp-change timer is reset after installing a new lamp by depressing timer button
while reconnecting ballast to electrical outlet and keep the button depressed until the ballast emits a solid three-second beep.
This will re-set the lamp-change-timer to zero and the 3-second beep will confirm that the re-set was successful.
NOTE
: It is not possible to reset the lamp-change-timer unless the timer is in the grace period or lamp-change alarm mode or
lamp-failure mode.
Time Remaining:
When the lamp-change-timer is not in the grace period or lamp change alarm mode, the number of months of
lamp life remaining can be determined by pressing the timer push button and counting the number of times the red LED flashes.
Lamp Failure:
When the UV ballast detects a lamp failure or enters the auto-shut down mode due to abnormal operating
conditions, the alarm buzzer sounds and the green lamp-ON LED switches OFF. If connected, the solenoid valve will shut off the
water flow to the house.
Note:
The UV ballast is designed to shut down if the AC input voltage is outside the operating limits. When this happens, a lamp
failure alarm will become active. You should unplug the unit from the AC power source wait for fifteen seconds and then
reconnect. If the failure was due to out-of-limit AC power, the unit will re-ignite the lamp and operate normally. If not refer to
trouble-shooting.
Solenoid Valve Output:
The UV ballast is capable of directly powering a solenoid valve (Model R1245S - optional), which will
shut off water flow during lamp failure alarm conditions or power failure.
OPERATION AND MAINTENANCE
Your UV system is ON continuously during normal use. Caution: During periods of not using water, for example overnight, water
inside the UV unit (approx 2 liters) can become hot. It is, therefore, recommended that after such periods of non-use, the cold
water line be flushed for about 30-45 seconds prior to use.
Note:
Under humid conditions, water droplets (condensation) may
appear on the outside of the UV disinfection chamber. This is normal.
Caution:
Protect your unit from freezing. Drain all the water from the UV if freezing temperatures exist.
Annual UV Lamp Replacement
: The UV lamp has an effective life of 9000 hours of continuous operation, after which it should be
replaced regardless of its apparent condition. As a good maintenance procedure it is recommended that the quartz dome also
be cleaned at the time of lamp replacement. Hold the lamp and dome by the ends with soft dry gloves or cloth.
4.
