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Step 3: Release water pressure by opening a downstream faucet and then close the outlet
shut-o valve (if any). If there is no outlet shut-o valve, expect water to drain from the system
as the head pressure in the system will cause the water to ow back down.
Step 4: Remove the capve ground screw from the ground lug on the UV reactor.
Step 5: Remove the lamp connector from the reactor (gland nut) by pushing the lamp
connector in and turning it ¼ turn counter-clockwise. Disconnect the lamp connector from the
lamp. CAUTION: the lamp may be hot!
Step 6: Being careful to touch only the ceramic ends, remove the lamp out of the reactor.
Step 7: Unscrew the gland nut from the reactor exposing the end of the quartz sleeve.
Step 8: Remove the quartz sleeve and o-ring by gently twisng and pulling the quartz sleeve.
Step 9: Using a so, lint-free cloth or towel wipe the sleeve down using a commercial scale
cleaner (i.e. CLR® or LIME-A-WAY®). This removes scaling or iron deposits that may be on the
outside of the quartz sleeve. Be careful not to get any moisture or liquids inside of the sleeve.
Step 10: Dry the sleeve with separate cloth.
Step 11: Replace the o-ring and slide the sleeve back into the reactor following steps 7 and 8
from the installaon secon of the manual.
Cleaning the UV Sensor
Depending on the water quality, the UV sensor may require periodic cleaning. At a minimum,
the UV sensor should be cleaned on an annual basis. The following steps outline a basic cleaning
procedure.
Step 1: If a by-pass assembly is installed, shut the inlet valve o to prevent water ow through
the system. Otherwise, turn o main water inlet valve (and/or turn o the water pump).
Step 2: Disconnect power cord of UV system from electrical outlet.
Step 3: Release water pressure by opening a downstream faucet and then close the outlet
shut-o valve (if any). If there is no outlet shut-o valve, expect water to drain from the system
as the head pressure in the system will cause the water to ow back down.
Step 4: Place something under the reactor to catch any water that may come out of the
reactor during the removal of the UV sensor.
Step 5: Unscrew (counterclockwise) sensor nut from the reactor and pull the sensor slowly out
of the sensor port.
Step 6: Holding the sensor in your hand wipe the at poron (sensor face) of the sensor with
isopropyl alcohol using a clean lint-free cloth.
Step 7: Replace sensor following step 8 from the installaon secon of the manual.