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Step 3:
Release water pressure by opening a downstream tap 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.
Step 4:
Remove the captive 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 connec-
tor 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 twisting and pulling
the quartz sleeve.
Step 9
: Using a soft, 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 a separate cloth.
Step 11:
Replace the o-ring and slide the sleeve back into the reactor following steps 7 and 8
from the installation section 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 cleaning on an annual basis. The following steps outline a basic clean-
ing procedure.
Step 1:
If a by-pass 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).
Step 2:
Disconnect power cord of UV system from electrical outlet.
Step 3:
Release water pressure by opening a downstream tap 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.
Step 4:
Place something under the reactor to catch any water that may come out of the reac-
tor 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 flat portion (sensor face) of the sensor with
isopropyl alcohol using a clean lint-free cloth.
Step 7:
Replace sensor following step 9 from the installation section of the manual.
Содержание H151
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