8
Adjustment of metering
On the metering cylinder there is a scale indicating the
percentage of additives. When the injector is not
operating and there is no pressure in the unit, turn the
adjustment sleeve clockwise to increase the amount of
additive or turn counterclockwise to decrease the amount
of additive. The actual rate should be checked. If
necessary, adjust by increasing or decreasing the
adjustment sleeve.
Servicing
The water filter at the inlet to the injector and the additive
inlet filter should be cleaned frequently.
* NOTE: If it is planned not to use the injector for a long time, it should be operated for a few
minutes with the suction tube inside a tank of clean water, in order to flush away traces of additive
from inside the injector and prevent them from adhering to it.
If there is a drop in temperature below 4
°
C (40
°
F) risk or a risk of freezing, the injector should be
drained. In order to drain the unit, close the inlet and outlet valves properly. Unscrew and
dismantle the 1" coupling nut that connects the suction tube, press on the non-return valve
(insert your finger or a small rod) in order to drain all the water trapped in the unit, while
pressing the air bleed valve at the top of the injector (with your other hand).
Suggested maintenance
Replace injection seals every 12 months:
Kit # 1- seals 0.1-1%(Catalog No. 35000000008)
Kit # 2-TF seals 0.2-2.5% (Catalog No. 35000000002)
Kit # 3-TF seals 1-5% (Catalog No. 35000000003)
Troubleshooting guide
Problem
Check
Solution
The injector is fitted with the arrows in the opposite direction to the
water flow direction.
Fit the injector with the arrows in the direction
of flow.
.
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The injector
does not
work
.
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Open the nut locking the motor cover, remove the motor cover, and
remove the mechanism. Check if the motor seals are defective.
Replace the motor seals.
.
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Check if the seals above the valves are defective or have been
displaced.
Replace the seals.
The injector
has stopped
working
Check if one of the parts of the mechanism is broken.
Replace the broken part.
The leak is from the connection between the body and the cover.
Open and remove the motor cover, replace the
seal, fit the cover, and thoroughly tighten the
cover locking nut.
The leak is from the connection of the suction tube.
Remove the suction tube, replace the defective
seal and reconnect.
There is a
leak from
the injector
The leak is from the non-return valve.
Dismantle the non-return valve and replace the
defective seal.
.
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tl
if
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b
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tl
if
n
o
it
c
u
s
e
h
T
Dismantle the injector unit and check if the suction seal is defective.
Replace the suction seal.
There is no
suction in
the additive
inlet
.
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For advice, technical support and purchase of spare parts, contact the authorized sales
representative in your area.
Summary of Contents for MixRite TF-25
Page 1: ...MixRite TF 25 ...