dosatron D14WL2, Руководство пользователя

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©
DOSATRON INTERNATIONAL S.A.S / 33
©
DOSATRON INTERNATIONAL S.A.S / 34
US
CHANGING THE DOSING SEALS
Please refer to the drawings of the different models at the end of this
manual
- Change the seals once a year.
- Turn off the water supply and allow the pressure to drop to zero.
- Take off the suction tube of product
(Fig. 17) .
- Unscrew the retaining ring (Fig. 18) .
- Pull downwards to remove the injection assembly (Fig. 19) .
- Change the seals, the suction valve and the barbed fitting.
- Re-assemble in the reverse order to the above
by hand.
5
%
5
%
5
%
CLEANING AND RE-ASSEMBLING THE SUCTION VALVE SEAL
- Turn off the water supply
and allow the pressure to
drop to zero.
- Unscrew the nut and pull
downwards to remove the
suction tube
(Fig. 20).
- Unscrew and take off the
suction valve retaining nut
(Fig. 21) , pull out the valve
assembly, dismantle the valve
and thoroughly rinse the
separate components in clean
water.
- Put the valve components
in the order shown in the
diagram
(Fig. 22) .
5
%
5
%
5
%
Fig. 20 Fig. 21 Fig. 22
Fig. 17 Fig. 19 Fig. 18
Troubleshooting
SYMPTOM CAUSE SOLUTION
Motor piston
DOSATRON
does not start
or stops
Piston stalled. Reset piston, by hand.
Air has not been bled from
unit. Bleed air from unit, by bleed
button.
Maximum flow exceeded.
1. Reduce flow, restart unit.
2. Unscrew the top cap. Take
off the piston and check
piston valves seals to
ensure correct position.
Motor piston is damaged.
Return unit to your service
center for repair.
Injection
Water flowing
back into
concentrate
container.
Contaminated, worn, or
missing check valve parts.
Clean or replace it.
For IE model: injection module
membrane and umbrella valve
damaged
Replace the membrane and
the valve seat
For IE model: Non-return
valve and umbrella valves
damaged or scaled Descale or replace the non-
return valve and the valve
seat
No suction of
concentrate.
The piston motor has stopped. See Motor piston section.
Air leak (inlet) in the suction
tube. Check the tightness bet ween
nut and suction hose.
For IE model: External
injection pipe obstructed or
scaled.
Descale or replace the
external injection pipe
Blocked suction tube or
clogged strainer.
Clean or replace it.
Missing or worn plunger seal.
Clean or replace it.Version
WL3000 : replace the
complete plunger assembly
(seal)
Worn injection stem Replace it.