Puretec Radfire RI Series, User Manual

Page: 13 / 28

13 Puretec Radfire RI Series Copyright © Puretec Pty Ltd 2021
Cleaning the UV Sensor
Depending on the water quality, the UV sensor may require periodic cleaning. At a minimum,
the UV sensor should be cleaning on an annual basis. The following steps outline a basic
cleaning procedure.
1. If a bypass assembly is installed, shut the inlet valve off to prevent water flow through the
system. Otherwise, turn off main water inlet valve (and/or turn off the water pump).
2. Disconnect power cord of UV system from electrical outlet.
3. Release water pressure by opening a downstream faucet and then close the outlet
shut-off valve (if any). If there is no outlet shut-off valve, expect water to drain from the
system as the head pressure in the system will cause the water to flow back down.
4. Place something under the reactor to catch any water that may come out of the UV
chamber during the removal of the UV sensor.
5. Unscrew (counter-clockwise) sensor nut from the UV chamber and pull the sensor slowly
out of the sensor port.
6. Holding the sensor in your hand wipe the flat portion (sensor face) of the sensor with
isopropyl alcohol using a clean lint-free cloth.
7. Replace sensor following step 9 from the installation section of the manual.
Operation
Puretec systems come with a feature laden controller that incorporates both the lamp driver
(ballast) and control features in one water-tight case. Two controllers are available for
the Puretec systems (depending on your model). Models feature a power factor corrected,
constant current lamp driver with a universal power input.
NOTE : While the screen is red and the buzzer is sounding the water from the system should
NOT be consumed. If any water does pass through the system during this period, please
follow the disinfection procedure as outlined in this manual before the water is consumed.
For Puretec standard UV systems, even though they have a visual and audible warning built
into the controller, a green status screen does not necessarily indicate that the water coming
from this system is in fact potable (safe to drink). These systems do not measure the level
of disinfection; they simply measure the “on-off” status of the lamp. Please have your water
checked for microbiological contaminants on a regular basis.
Cleaning the UV Sensor